WO2019134072A1 - 一种信号传输方法及装置、计算机存储介质 - Google Patents

一种信号传输方法及装置、计算机存储介质 Download PDF

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Publication number
WO2019134072A1
WO2019134072A1 PCT/CN2018/070068 CN2018070068W WO2019134072A1 WO 2019134072 A1 WO2019134072 A1 WO 2019134072A1 CN 2018070068 W CN2018070068 W CN 2018070068W WO 2019134072 A1 WO2019134072 A1 WO 2019134072A1
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WIPO (PCT)
Prior art keywords
carrier
synchronization signal
transmission mode
pbch
signal transmission
Prior art date
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PCT/CN2018/070068
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English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to KR1020207022282A priority Critical patent/KR102430666B1/ko
Priority to EP18898803.4A priority patent/EP3737168B1/en
Priority to CN202110185052.0A priority patent/CN112929145B/zh
Priority to AU2018400261A priority patent/AU2018400261B2/en
Priority to CN201880085080.1A priority patent/CN111557111A/zh
Priority to JP2020536994A priority patent/JP7139430B2/ja
Priority to EP23210437.2A priority patent/EP4300869A3/en
Priority to PCT/CN2018/070068 priority patent/WO2019134072A1/zh
Publication of WO2019134072A1 publication Critical patent/WO2019134072A1/zh
Priority to US16/919,803 priority patent/US11758495B2/en
Priority to US18/348,458 priority patent/US20230354231A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0006—Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a signal transmission method and apparatus, and a computer storage medium.
  • the L-LTE Licensed-Assisted Access-Long Term Evolution
  • the carrier is a primary carrier, so that the carrier on the licensed spectrum is not used as a secondary carrier to provide services to the terminal device.
  • the primary carrier can be used to ensure the initial access of the terminal device and the transmission performance of some key services
  • the secondary carrier on the unlicensed spectrum can be used to transmit the non-critical big data service of the terminal device.
  • the network device needs to send a discovery reference signal (DRS, Discovery Signal) on the unlicensed carrier, so that the terminal device of the local cell can complete the synchronization with the cell on the unlicensed carrier.
  • the terminal device of the neighboring cell can also perform radio resource management (RRM) measurement on the signal of the cell.
  • the DRS in the LTE system includes a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Cell-specific Reference Signal (CRS).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • CRS Cell-specific Reference Signal
  • the DRS is further A channel state information reference signal (CSI-RS, Channel-State Information Reference Signal) may be included.
  • CSI-RS Channel state information reference signal
  • the DRS includes the PSS, the SSS, and the CRS as an example to describe the transmission of the DRS in the LAA-LTE system.
  • the network device can detect the discovery time of the discovery signal configured by the network device for the terminal device after the channel usage right is detected by the Listening Before (Talk) principle (DMTC, Discovery Signal Measurement Timing).
  • DMTC Discovery Signal Measurement Timing
  • the DRS is transmitted in the configuration window, where the DRS and the Physical Downlink Shared CHannel/Physical Downlink Control CHannel/Enhanced Physical Downlink Control Channel (EPDCCH, Enhanced Physical Downlink Control) CHANNE)
  • the channels can only be transmitted on subframe 0 (#0 in Figure 1) or subframe 5 (#5 in Figure 1); if DRS is transmitted separately, that is, DRS does not
  • the DRS may transmit a DRS signal on a subframe in which the first LBT succeeds in the DMTC window.
  • the DRS transmits on one subframe it occupies the first 12 symbols of the subframe. As shown in FIG. 1, the PSS and the SSS occupy symbol 5 and symbol 6, and the CRS occupies symbol 0, symbol 4, symbol 7, and symbol 11.
  • CA carrier aggregation
  • DC carrier aggregation
  • DC dual connectivity
  • SA Standalone
  • an embodiment of the present invention provides a signal transmission method and apparatus, and a computer storage medium.
  • the terminal device determines a synchronization signal transmission mode on the first carrier, where the synchronization signal transmission mode is a first transmission mode or a second transmission mode;
  • the terminal device receives information on the first carrier according to the synchronization signal transmission manner.
  • the terminal device determines a synchronization signal transmission manner on the first carrier, including:
  • the terminal device determines a synchronization signal transmission manner on the first carrier, and further includes:
  • the terminal device does not receive the first indication information sent by the network device on the second carrier, and the terminal device determines that the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the terminal device determines a synchronization signal transmission manner on the first carrier, and further includes:
  • the terminal device accesses the network by using the first carrier, and the terminal device determines that the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the synchronization signal transmission mode is the first transmission mode
  • the terminal device receives the information on the first carrier according to the synchronization signal transmission manner, including:
  • the terminal device receives a first synchronization signal block (SSB, Synchronization Signal Block) on the first carrier, where the first SSB includes a primary synchronization signal, a secondary synchronization signal, and a first physical broadcast channel (PBCH, Physical Broadcast Channel) ).
  • SSB Synchronization Signal Block
  • PBCH Physical Broadcast Channel
  • the first PBCH includes MIB information for initial access of the terminal device.
  • the synchronization signal transmission mode is the second transmission mode
  • the terminal device receives the information on the first carrier according to the synchronization signal transmission manner, including:
  • the terminal device receives a second SSB on the first carrier, where the second SSB includes: a primary synchronization signal, a secondary synchronization signal, and a second PBCH.
  • the information transmitted by the second PBCH and the information transmitted by the first PBCH are at least one different.
  • the second PBCH includes at least one of the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the carrier sensing mode and the power threshold used by the network device for carrier sensing are not limited to the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the synchronization signal transmission mode is the second transmission mode
  • the terminal device receives the information on the first carrier according to the synchronization signal transmission manner, including:
  • the terminal device receives a synchronization signal SS on the first carrier, where the SS includes: a primary synchronization signal and a secondary synchronization signal.
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a downlink data channel or a downlink control channel;
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a padding signal
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier does not transmit information.
  • the communication network where the network device is located is a CA network, and the synchronization signal transmission manner on the first carrier is the second transmission mode;
  • the communication network in which the network device is located is not a CA network, and the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the frequency domain resource on the first carrier is a frequency domain resource that is shared by at least two communication devices of the network device, and the frequency domain resource on the second carrier is dedicated to the network device. Frequency domain resources.
  • the frequency domain resource on the first carrier is an unlicensed frequency domain resource
  • the frequency domain resource on the second carrier is an authorized frequency domain resource
  • the network device determines a synchronization signal transmission manner on the first carrier, where the synchronization signal transmission manner is a first transmission manner or a second transmission manner;
  • the network device sends information to the terminal device on the first carrier according to the synchronization signal transmission manner.
  • the method further includes:
  • the network device sends first indication information to the terminal device on the second carrier, where the first indication information is used to determine that the synchronization signal transmission manner on the first carrier is the first transmission mode or the The second transmission method.
  • the synchronization signal transmission mode is the first transmission mode
  • the network device sends information to the terminal device on the first carrier according to the synchronization signal transmission manner, including:
  • the network device sends a first SSB on the first carrier, where the first SSB includes a primary synchronization signal, a secondary synchronization signal, and a first PBCH.
  • the synchronization signal transmission mode is the second transmission mode
  • the network device sends information to the terminal device on the first carrier according to the synchronization signal transmission manner, including:
  • the network device sends a second SSB on the first carrier, where the second SSB includes a primary synchronization signal, a secondary synchronization signal, and a second PBCH.
  • the second PBCH includes at least one of the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the carrier sensing mode and the power threshold used by the network device for carrier sensing are not limited to the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the synchronization signal transmission mode is the second transmission mode
  • the network device sends information to the terminal device on the first carrier according to the synchronization signal transmission manner, including:
  • the network device sends an SS on the first carrier, where the SS includes: a primary synchronization signal and a secondary synchronization signal.
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a downlink data channel or a downlink control channel;
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a padding signal
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier does not transmit information.
  • the network device determines a synchronization signal transmission manner on the first carrier, including:
  • the communication network where the network device is located is a CA network, and the network device determines that the synchronization signal transmission manner on the first carrier is the second transmission mode;
  • the communication network where the network device is located is not a CA network, and the network device determines that the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the frequency domain resource on the first carrier is a frequency domain resource that is shared by at least two communication devices of the network device, and the frequency domain resource on the second carrier is dedicated to the network device. Frequency domain resources.
  • the frequency domain resource on the first carrier is an unlicensed frequency domain resource
  • the frequency domain resource on the second carrier is an authorized frequency domain resource
  • the signal transmission device provided by the embodiment of the present invention is applied to a terminal device, where the device includes:
  • a determining unit configured to determine a synchronization signal transmission manner on the first carrier, where the synchronization signal transmission mode is a first transmission mode or a second transmission mode;
  • the first receiving unit is configured to receive information on the first carrier according to the synchronization signal transmission manner.
  • the device further includes:
  • a second receiving unit configured to receive first indication information that is sent by the network device on the second carrier, where the first indication information is used to determine that the synchronization signal transmission manner on the first carrier is the first transmission mode or The second transmission mode;
  • the determining unit is configured to determine, according to the first indication information, the synchronization signal transmission manner on the first carrier.
  • the determining unit when the second receiving unit does not receive the first indication information sent by the network device, the determining unit is configured to determine the synchronization on the first carrier.
  • the signal transmission mode is the first transmission mode.
  • the synchronization signal transmission mode is the first transmission mode, and correspondingly,
  • the first receiving unit is configured to receive a first SSB on the first carrier, where the first SSB includes a primary synchronization signal, a secondary synchronization signal, and a first PBCH.
  • the synchronization signal transmission mode is the second transmission mode, and correspondingly,
  • the first receiving unit is configured to receive a second SSB on the first carrier, where the second SSB includes: a primary synchronization signal, a secondary synchronization signal, and a second PBCH.
  • the second PBCH includes at least one of the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the carrier sensing mode and the power threshold used by the network device for carrier sensing are not limited to the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the synchronization signal transmission mode is the second transmission mode, and correspondingly,
  • the first receiving unit is configured to receive an SS on the first carrier, where the SS includes: a primary synchronization signal and a secondary synchronization signal.
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a downlink data channel or a downlink control channel;
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a padding signal
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier does not transmit information.
  • the communication network in which the network device is located is a carrier aggregation CA network, and the synchronization signal transmission manner on the first carrier is the second transmission mode;
  • the communication network in which the network device is located is not a CA network, and the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the frequency domain resource on the first carrier is a frequency domain resource that is shared by at least two communication devices of the network device, and the frequency domain resource on the second carrier is dedicated to the network device. Frequency domain resources.
  • the frequency domain resource on the first carrier is an unlicensed frequency domain resource
  • the frequency domain resource on the second carrier is an authorized frequency domain resource
  • the signal transmission device provided in the embodiment of the present invention is applied to a network device, where the device includes:
  • a determining unit configured to determine a synchronization signal transmission manner on the first carrier, where the synchronization signal transmission manner is a first transmission manner or a second transmission manner;
  • the first sending unit is configured to send information to the terminal device on the first carrier according to the synchronization signal transmission manner.
  • the device further includes:
  • a second sending unit configured to send the first indication information to the terminal device on the second carrier, where the first indication information is used to determine that the synchronization signal transmission manner on the first carrier is the first transmission manner Or the second transmission mode.
  • the synchronization signal transmission mode is the first transmission mode, and correspondingly,
  • the first sending unit is configured to send a first SSB on the first carrier, where the first SSB includes a primary synchronization signal, a secondary synchronization signal, and a first PBCH.
  • the synchronization signal transmission mode is the second transmission mode, and correspondingly,
  • the first sending unit is configured to send a second SSB on the first carrier, where the second SSB includes a primary synchronization signal, a secondary synchronization signal, and a second PBCH.
  • the second PBCH includes at least one of the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the carrier sensing mode and the power threshold used by the network device for carrier sensing are not limited to the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the synchronization signal transmission mode is the second transmission mode, and correspondingly,
  • the first sending unit is configured to send an SS on the first carrier, where the SS includes: a primary synchronization signal and a secondary synchronization signal.
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a downlink data channel or a downlink control channel;
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a padding signal
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier does not transmit information.
  • the communication network where the network device is located is a CA network, and the determining unit determines that the synchronization signal transmission manner on the first carrier is the second transmission mode;
  • the determining unit determines that the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the frequency domain resource on the first carrier is a frequency domain resource that is shared by at least two communication devices of the network device, and the frequency domain resource on the second carrier is dedicated to the network device. Frequency domain resources.
  • the frequency domain resource on the first carrier is an unlicensed frequency domain resource
  • the frequency domain resource on the second carrier is an authorized frequency domain resource
  • the computer storage medium provided by the embodiment of the invention stores computer executable instructions thereon, and the computer executable instructions are implemented by the processor to implement the signal transmission method.
  • the network device does not need to send the PBCH for initial access to the terminal device, in which case the network device can send the PBCH.
  • the content is modified to assist the terminal device in data transmission; or the network device can use the frequency domain resource for transmitting the PBCH for transmitting the data channel or the control channel to improve resource utilization.
  • the network device can send the indication information to the terminal device by using the carrier on the licensed spectrum, so that the terminal device of the carrier service on the unlicensed spectrum can correctly receive the synchronization signal.
  • 1 is a schematic diagram of a time domain structure for transmitting a DRS in a DMTC window
  • FIG. 2 is a schematic diagram of time-frequency resources of an SSB
  • FIG. 3 is a schematic flowchart 1 of a signal transmission method according to an embodiment of the present invention.
  • FIG. 4 is a second schematic flowchart of a signal transmission method according to an embodiment of the present invention.
  • FIG. 5 is a first schematic structural diagram of a signal transmission apparatus according to an embodiment of the present invention.
  • FIG. 6 is a second schematic structural diagram of a signal transmission apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
  • the unlicensed spectrum is a spectrum of national and regional divisions that can be used for radio communication.
  • This spectrum is generally considered to be a shared spectrum. That is, communication equipment in different communication systems can meet the regulatory requirements set by the country or region. With this spectrum, there is no need to apply for a proprietary spectrum license from the government.
  • some countries or regions specify regulatory requirements that must be met to use the unlicensed spectrum. For example, in the European region, the communication device follows the LBT principle, that is, the communication device needs to perform channel sensing before transmitting the signal on the channel of the unlicensed spectrum, and the communication device can perform only when the channel listening result is that the channel is idle.
  • the communication device cannot perform signal transmission.
  • the duration of signal transmission by the communication device using the channel of the unlicensed spectrum cannot exceed the Maximum Channel Occupation Time (MCOT).
  • MCOT Maximum Channel Occupation Time
  • the signal transmitted on the unlicensed spectrum channel needs to be At least a certain proportion of the channel bandwidth is occupied.
  • the 5 GHz band is 80% of the signal occupied channel bandwidth
  • the 60 GHz band is 70% of the signal occupied channel bandwidth.
  • the regulation stipulates that the communication device uses the channel of the unlicensed spectrum for signal transmission. Maximum power spectral density at the time.
  • the embodiments of the present invention can be applied to various communication systems, such as a Global System of Mobile Communication (GSM) system, a Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (WCDMA). Wideband Code Division Multiple Access) system, General Packet Radio Service (GPRS), Universal Mobile Telecommunication System (UMTS), LTE system, and evolved systems of LTE systems, such as advanced long-term evolution (LTE) -A, Advanced long term evolution), an evolution system of the NR system and the NR system, for example, an NR-based (NR-based access to Unlicensed spectrum) system, or a next-generation communication system.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • the embodiments of the present invention can also be applied to device to device (D2D, Device to Device) communication, machine to machine (M2M, Machine to Machine) communication, machine type communication (MTC, Machine Type Communication), and vehicle (V2V, Vehicle). To Vehicle) communication.
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle
  • To Vehicle Vehicle
  • the communication system in the embodiment of the present invention can be applied to a licensed spectrum, wherein the licensed spectrum is a spectrum dedicated to the network device.
  • the communication system in the embodiment of the present invention can also be applied to an unlicensed spectrum, wherein the unlicensed spectrum is a spectrum shared by at least two communication devices, such as a spectrum of 2.4 GHz, 5 GHz, 37 GHz or 60 GHz.
  • the communication system in the embodiment of the present invention can be applied to a CA network deployment scenario, and can also be applied to a DC network deployment scenario, and can also be applied to an SA network deployment scenario.
  • the CA deployment scenario may be that the primary carrier is on the licensed spectrum, the secondary carrier is on the unlicensed spectrum, and the primary carrier and the secondary carrier are used. Connected via an ideal backhaul.
  • the DC deployment scenario may be that the primary carrier is on the licensed spectrum, the secondary carrier is on the unlicensed spectrum, and the primary carrier and the secondary carrier are used.
  • the system on the primary carrier and the system on the secondary carrier belong to different systems, for example, the system on the primary carrier is an LTE system, the system on the secondary carrier is an NR system, or the primary carrier
  • the system may also belong to the same system as the system on the secondary carrier.
  • the systems on the primary carrier and the secondary carrier are both LTE systems or both NR systems.
  • the terminal device can access the network through the system on the unlicensed spectrum.
  • Embodiments of the present invention describe various embodiments in connection with a network device and a terminal device, where:
  • the terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user. Agent or user device.
  • UE User Equipment
  • the terminal device may be a station (ST, STAION) in a Wireless Local Area Network (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP), a wireless local loop (WLL, Wireless Local Loop) stations, personal digital processing (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, For example, a terminal device in a 5G (fifth-generation) network or a terminal device in a future evolved Public Land Mobile Network (PLMN) network.
  • PLMN Public Land Mobile Network
  • the terminal device may also be a wearable device.
  • a wearable device which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes.
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (AP, Access Point) in the WLAN, a base station (BTS, Base Transceiver Station) in CDMA, or may be in WCDMA.
  • a base station (NB, NodeB) may also be an evolved base station (eNB or eNodeB, Evolutional Node B) in LTE, or a relay station or an access point, or an in-vehicle device, a wearable device, and a network device in an NR network or a future evolution.
  • AP Access Point
  • BTS Base Transceiver Station
  • a base station (NB, NodeB) may also be an evolved base station (eNB or eNodeB, Evolutional Node B) in LTE, or a relay station or an access point, or an in-vehicle device, a wearable device, and a network device in an NR network or a future evolution.
  • eNB or eNodeB Evolutional Node
  • the network device provides a service for the cell
  • the terminal device communicates with the network device by using a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell
  • the cell may be a network device (for example, The corresponding cell of the base station, the cell may belong to the macro base station, or may belong to the base station corresponding to the small cell, where the small cell may include: a metro cell, a micro cell, and a pico cell. Cell, femto cell, etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • multiple carriers can work at the same frequency on the carrier in the LTE system or the NR system.
  • the concept of the carrier and the cell can be considered to be equivalent.
  • the carrier index of the secondary carrier and the cell identifier (Cell ID, Cell Indentify) of the secondary cell operating in the secondary carrier are carried in the same manner.
  • the carrier is equivalent to the concept of a cell, for example, the UE accessing one carrier and accessing one cell are equivalent.
  • the embodiments of the present invention may be applied to an uplink or downlink physical channel or a reference signal.
  • the physical channel may include a Physical Downlink Control CHannel (Physical Downlink Control CHannel), a Physical Downlink Shared CHannel (PDSCH), and a physical downlink shared channel (PDSCH).
  • Physical Downlink Control CHannel Physical Downlink Control CHannel
  • PDSCH Physical Downlink Shared CHannel
  • PDSCH physical downlink shared channel
  • the HARQ indicator channel (PHICH, Physical Hybrid-ARQ Indicator CHannel), the physical broadcast channel (PBCH, Physical Broadcast CHannel), the Physical Multicast CHannel (PMCH), and the Physical Random Access CHannel (PRACH)
  • the physical uplink control channel (PUCCH, Physical Uplink Control CHannel), the physical uplink shared channel (PUSCH), the reference signal may include a Demodulation Reference Signal (DMRS), and a Sounding Reference Signal (SRS, Sounding Reference Signal), Channel State Information Reference Signal (CSI-RS), Phase Tracking Reference Signal (PT-RS, Phase Tracking Reference Signal), etc.
  • DMRS Demodulation Reference Signal
  • SRS Sounding Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • PT-RS Phase Tracking Reference Signal
  • the network can be deployed in various ways, such as CA, DC, or SA. Different networking modes have different requirements for the terminal device to access the cell on the unlicensed spectrum. The following analysis of these scenarios:
  • Scenario 1 CA mode, that is, the NR carrier on the licensed spectrum is the primary carrier, the NR carrier on the unlicensed spectrum is the secondary carrier, the primary carrier and the secondary carrier are connected through the ideal backhaul, and the subcarrier supported by the secondary carrier on the unlicensed spectrum
  • the interval is not greater than the predefined subcarrier spacing.
  • the subcarrier spacing supported by the secondary carrier on the unlicensed spectrum is no more than 120 kHz.
  • the network device sends information such as synchronization signals, MIBs, and SIBs on the primary carrier (authorized spectrum).
  • the terminal device can access the network by receiving information such as synchronization signals, MIBs, and SIBs sent on the primary carrier, and then according to the information.
  • the configuration information on the primary carrier performs data transmission on the secondary carrier.
  • the network device needs to send reference signals such as PSS and SSS, so that the terminal device completes RRM measurement on the secondary carrier, thereby completing secondary cell management.
  • the CA mode that is, the NR carrier on the licensed spectrum is the primary carrier
  • the NR carrier on the unlicensed spectrum is the secondary carrier
  • the primary carrier and the secondary carrier are connected through the ideal backhaul
  • the subcarrier supported by the secondary carrier on the unlicensed spectrum The interval is not less than the predefined subcarrier spacing.
  • the subcarrier spacing supported by the secondary carrier on the unlicensed spectrum is not less than 240 kHz.
  • Scenario 3 The DC system of the different system, that is, the LTE carrier on the licensed spectrum is the primary carrier, and the NR carrier on the unlicensed spectrum is the secondary carrier, and the primary carrier and the secondary carrier are connected through the non-ideal backhaul.
  • Scenario 4 The same system DC mode, that is, the NR carrier on the licensed spectrum is the primary carrier, and the NR carrier on the unlicensed spectrum is the secondary carrier, and the primary carrier and the secondary carrier are connected through the non-ideal backhaul.
  • the network device sends synchronization information, MIB, SIB, and the like on the primary carrier, and the terminal device can access the network by receiving information such as a synchronization signal, MIB, and SIB transmitted on the primary carrier, but the terminal The device cannot correctly determine the subframe information on the secondary carrier according to the time synchronization information obtained by the primary carrier.
  • scenario 2 is because the subcarrier spacing on the secondary carrier is too large, and the corresponding symbol is too short; scenario 3 and scenario 4 are due to the primary carrier.
  • the secondary carrier and the secondary carrier are not co-located. Therefore, the synchronization signal and the PBCH need to be sent on the secondary carrier without the authorization, so that the terminal device can correctly obtain the time synchronization on the secondary carrier.
  • Scenario 5 The SA mode, that is, the NR carrier on the unlicensed spectrum is the primary carrier.
  • the network device needs to send synchronization information, MIB, SIB, and the like on the primary carrier on the unlicensed spectrum, so that the terminal device can access the synchronization signal, MIB, SIB, and the like sent on the primary carrier.
  • the internet The internet.
  • the synchronization signal includes PSS and SSS
  • the synchronization signal and PBCH constitute the SSB, as shown in FIG.
  • the technical solution of the embodiment of the present invention aims to solve the problem of how to transmit a synchronization signal similar to DRS in the NR-U system, so that the synchronization signal can satisfy the measurement/synchronization requirement of the user of the NR-U system service.
  • the technical solutions of the embodiments of the present invention are described below.
  • FIG. 3 is a schematic flowchart 1 of a signal transmission method according to an embodiment of the present invention.
  • the signal transmission method includes the following steps:
  • Step 301 The terminal device determines a synchronization signal transmission mode on the first carrier, where the synchronization signal transmission mode is a first transmission mode or a second transmission mode.
  • the terminal device may determine a synchronization signal transmission manner on the first carrier based on the following manner.
  • Manner 1 The terminal device receives the first indication information sent by the network device on the second carrier, where the first indication information is used to determine that the synchronization signal transmission manner on the first carrier is the first transmission mode or The second transmission mode; the terminal device determines, according to the first indication information, the synchronization signal transmission manner on the first carrier.
  • the frequency domain resource on the first carrier is a frequency domain resource that is shared by at least two communication devices of the network device
  • the frequency domain resource on the second carrier is a frequency domain resource dedicated to the network device.
  • the first carrier is referred to as a carrier on the unlicensed spectrum and the second carrier is a carrier on the licensed spectrum. It should be understood that the first carrier includes at least one carrier on the unlicensed spectrum and the second carrier includes at least one carrier on the licensed spectrum.
  • the network device indicates the first indication information by using 1 bit on the second carrier, and the bit is 1, indicating that the synchronization signal transmission mode is the first transmission mode, and the bit is 0, which represents the synchronization signal transmission.
  • the mode is the second transmission mode; of course, the bit is 0, and the synchronization signal transmission mode is the first transmission mode, and the bit is 1, indicating that the synchronization signal transmission mode is the second transmission mode.
  • Manner 2 If the terminal device does not receive the first indication information sent by the network device on the second carrier, the terminal device determines that the synchronization signal transmission manner on the first carrier is the A transmission method. And if the terminal device receives the first indication information sent by the network device on the second carrier, the terminal device determines that the synchronization signal transmission manner on the first carrier is the second transmission mode.
  • the specific content of the first indication information may be disregarded.
  • the synchronization signal transmission manner is considered as The second transmission mode; if the terminal device does not receive the first indication information on the second carrier (or the parameter corresponding to the first indication information is not configured), the synchronization signal transmission mode is considered to be the first transfer method.
  • Manner 3 In combination with the foregoing manners 1 and 2, if the terminal device does not receive the first indication information sent by the network device on the second carrier, the terminal device determines the The synchronization signal transmission mode is the first transmission mode. If the terminal device receives the first indication information sent by the network device on the second carrier, the terminal device determines, according to the first indication information, the synchronization signal transmission manner on the first carrier, It may be the first transmission mode or the second transmission mode.
  • Manner 4 If the terminal device is not configured with the second carrier, or the terminal device accesses the network by using the first carrier, the terminal device determines the synchronization signal transmission manner on the first carrier For the first transmission mode.
  • Step 302 The terminal device receives information on the first carrier according to the synchronization signal transmission manner.
  • the synchronization signal transmission mode is the first transmission mode
  • the terminal device receives a first synchronization signal block SSB on the first carrier, where the first SSB includes a primary synchronization signal, a secondary synchronization signal, and a first PBCH.
  • the first PBCH includes MIB information for initial access of the terminal device.
  • the first PBCH includes information that the auxiliary terminal device performs data transmission on the first carrier, such as information such as a transmit power of the synchronization signal.
  • the synchronization signal transmission mode is the second transmission mode
  • the terminal device receives a second SSB on the first carrier, where the second SSB includes: a primary synchronization signal, a secondary synchronization signal, and a second PBCH.
  • the information transmitted by the second PBCH and the information transmitted by the first PBCH are at least one different.
  • the second PBCH includes at least one of the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of a synchronization signal, a resource allocation of an unlicensed uplink transmission, and a carrier sense mode used for an unlicensed uplink transmission.
  • the transmit power of the synchronization signal may be used by the terminal device to measure the path loss of the downlink channel or the quality information of the downlink channel.
  • the resource allocation of the Grant free uplink transmission is a semi-statically configured time-frequency resource.
  • the carrier sense mode used for the Grant free uplink transmission includes an uplink channel access procedures in the LAA system, such as Type 1 or Type 2 channel access.
  • the second PBCH may include MIB information for initial access of the terminal device, and may not include MIB information for initial access of the terminal device, which is not limited by the present invention.
  • the terminal device receives an SS on the first carrier, where the SS includes: a primary synchronization signal and a secondary synchronization signal.
  • the PBCH (for example, the first PBCH or the second PBCH) does not need to be transmitted on the first carrier, and the transmission resource corresponding to the PBCH (for example, the time-frequency resource occupied by the PBCH in FIG. 2) transmits other information, such as a downlink data channel or Downlink control channel.
  • the transmission resource corresponding to the PBCH for example, the time-frequency resource occupied by the PBCH in FIG. 2
  • transmits other information such as a downlink data channel or Downlink control channel.
  • the manner in which the network device uses the transmission resource corresponding to the PBCH on the first carrier may be predefined, or is specified by a communication standard, or is notified to the terminal device by signaling. If the transmission resource corresponding to the PBCH is used to transmit a downlink data channel or a downlink control channel, the terminal device receives information on the transmission resource corresponding to the PBCH; if the transmission resource corresponding to the PBCH is used to transmit a padding signal, or does not send any signal, Then, the terminal device does not receive information on the transmission resource corresponding to the PBCH.
  • the communication network where the network device is located is a CA network, and the synchronization signal transmission manner on the first carrier is the second transmission mode; If the network is not a CA network, the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • Scenario 1 If the communication network in which the terminal device and the network device are located is a CA network, and the subcarrier spacing supported by the first carrier is less than or equal to the first bandwidth (eg, 120 kHz), the first The synchronization signal transmission mode on the carrier is the second transmission mode.
  • the first bandwidth eg, 120 kHz
  • Scenario 2 If the communication network in which the terminal device and the network device are located is a CA network, and the subcarrier spacing supported by the first carrier is greater than or equal to a second bandwidth (eg, 240 kHz), the first The synchronization signal transmission mode on the carrier is the first transmission mode.
  • a second bandwidth eg, 240 kHz
  • Scenario 3 and scenario 4 if the communication network in which the terminal device and the network device are located is a DC network (different system DC mode or the same system DC mode), the synchronization signal transmission mode on the first carrier For the first transmission mode.
  • a DC network different system DC mode or the same system DC mode
  • Scenario 5 If the communication network in which the terminal device and the network device are located is an SA network, the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • FIG. 4 is a schematic flowchart 2 of a signal transmission method according to an embodiment of the present invention.
  • the signal transmission method includes the following steps:
  • Step 401 The network device determines a synchronization signal transmission mode on the first carrier, where the synchronization signal transmission mode is a first transmission mode or a second transmission mode.
  • the network device determines that the synchronization signal transmission manner on the first carrier is the second transmission mode. And if the communication network where the network device is located is not a CA network, the network device determines that the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the synchronization signal transmission manner determined by the network devices of the five network deployment scenarios described above may be described as follows:
  • Scenario 1 If the communication network in which the terminal device and the network device are located is a CA network, and the subcarrier spacing supported by the first carrier is less than or equal to the first bandwidth (eg, 120 kHz), the first The synchronization signal transmission mode on a carrier is the second transmission mode.
  • the first bandwidth eg, 120 kHz
  • Scenario 2 If the communication network in which the terminal device and the network device are located is a CA network, and the subcarrier spacing supported by the first carrier is greater than or equal to a second bandwidth (eg, 240 kHz), determine the The synchronization signal transmission mode on a carrier is the first transmission mode.
  • a second bandwidth eg, 240 kHz
  • Scenario 3 and scenario 4 determining the synchronization signal transmission on the first carrier if the communication network in which the terminal device and the network device are located is a DC network (different system DC mode or the same system DC mode) The mode is the first transmission mode.
  • a DC network different system DC mode or the same system DC mode
  • Scenario 5 If the communication network where the terminal device and the network device are located is an SA network, determine that the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the network device may send the first indication information to the terminal device on the second carrier, in order to let the terminal device know the synchronization signal transmission manner on the first carrier, where the first indication information is used by the network device. Determining, by the first transmission mode or the second transmission mode, a synchronization signal transmission manner on the first carrier.
  • the frequency domain resource on the first carrier is a frequency domain resource that is shared by at least two communication devices of the network device
  • the frequency domain resource on the second carrier is a frequency domain resource dedicated to the network device.
  • the first carrier is referred to as a carrier on the unlicensed spectrum and the second carrier is a carrier on the licensed spectrum.
  • the network device indicates the first indication information by using 1 bit on the second carrier, and the bit is 1, indicating that the synchronization signal transmission mode is the first transmission mode, and the bit is 0, which represents the synchronization signal transmission.
  • the mode is the second transmission mode; of course, the bit is 0, and the synchronization signal transmission mode is the first transmission mode, and the bit is 1, indicating that the synchronization signal transmission mode is the second transmission mode.
  • the network device may also send the first indication information to the terminal device, and let the terminal device know the synchronization signal transmission manner on the first carrier in an implicit manner. For example, the network device does not send the first indication information, and the synchronization signal transmission mode is the first transmission mode; the network device sends the first indication information, where the synchronization signal transmission mode is the second transmission mode, or the network device sends The first indication information causes the terminal device to determine, according to the first indication information, whether the synchronization signal transmission mode is the first transmission mode or the second transmission mode.
  • Step 402 The network device sends information to the terminal device on the first carrier according to the synchronization signal transmission manner.
  • the synchronization signal transmission mode is the first transmission mode
  • the network device sends a first SSB on the first carrier, where the first SSB includes a primary synchronization signal, a secondary synchronization signal, and a first PBCH.
  • the first PBCH includes MIB information for initial access of the terminal device.
  • the first PBCH includes information that the auxiliary terminal device performs data transmission on the first carrier, such as information such as a transmit power of the synchronization signal.
  • the synchronization signal transmission mode is the second transmission mode
  • the network device sends a second SSB on the first carrier, where the second SSB includes a primary synchronization signal, a secondary synchronization signal, and a second PBCH.
  • the information transmitted by the second PBCH and the information transmitted by the first PBCH are at least one different.
  • the second PBCH includes at least one of the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of a synchronization signal, a resource allocation of an unlicensed uplink transmission, and a carrier sense mode used for an unlicensed uplink transmission.
  • the second PBCH may include MIB information for initial access of the terminal device, and may not include MIB information for initial access of the terminal device, which is not limited by the present invention.
  • the network device sends an SS on the first carrier, where the SS includes: a primary synchronization signal and a secondary synchronization signal.
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a downlink data channel or a downlink control channel; or the transmission corresponding to the first PBCH or the second PBCH in the first carrier
  • the resource is used to transmit the padding signal; or the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier does not send information.
  • the SSB is transmitted on the NR carrier on the unlicensed spectrum.
  • the information sent in the PBCH is not only useful for data transmission of the terminal device, and occupies a spectrum that can be used for data channel or control channel transmission. Resources.
  • the content sent in the PBCH is modified, for example, in the PBCH, some information in the scenario that can assist the terminal device to perform data transmission is sent to avoid wasting resources.
  • a padding signal is sent on the channel resources occupied by the PBCH to prevent the terminal device that should not receive the PBCH information from causing a misunderstanding of the system.
  • the information about the data transmission by the auxiliary terminal device may be a cell identifier, a beamforming identifier used by the synchronization signal, a transmission power of the synchronization signal, a resource allocation of the grant free uplink transmission, and a carrier used for the unlicensed uplink transmission. At least one of a listening mode, or a power threshold used by the network device for carrier sensing.
  • PBCH1 that is, the second PBCH
  • PBCH2 is sent in scenarios 2, 3, 4, and 5 (that is, the first PBCH)
  • PBCH1 occurs only in scenario 1, and the terminal device in scenario 1 accesses the network through the primary carrier on the licensed spectrum, signaling can be sent to the terminal device by using the primary carrier on the licensed spectrum (ie, the first indication information) ), informing the terminal device whether the secondary carrier on the unlicensed spectrum transmits PBCH1 or PBCH2.
  • the terminal device can transmit PBCH2 by default on the secondary carrier on the unlicensed spectrum of the network device; only when the terminal device receives the signaling on the authorized spectrum to confirm that the PBCH1 is sent on the secondary carrier, PBCH1 reception.
  • the network device sends the 1-bit bitmap signaling to the terminal device by using the primary carrier on the licensed spectrum, and uses the bitmap signaling to notify the terminal device whether the secondary carrier on the unlicensed spectrum sends PBCH1 or PBCH2.
  • the network device configures the secondary carrier PBCH1 related parameter on the unlicensed spectrum for the terminal device by using the primary carrier on the licensed spectrum, if the secondary carrier on the unlicensed spectrum is sent.
  • PBCH2 the network device does not configure PBCH1 related parameters for the terminal device.
  • the SSB is transmitted on the NR carrier on the unlicensed spectrum.
  • scenario 1 only the SS is transmitted on the NR carrier on the unlicensed spectrum, and the PBCH is not transmitted.
  • the spectrum resources for PBCH transmission may be used for data channel or control channel transmission.
  • the signals for synchronization sent in different scenarios are different, for example, SS is sent in scenario 1, and SSB is sent in scenarios 2, 3, 4, and 5.
  • the current network needs to be clear. Whether the device sends SS or SSB to complete the correct rate matching. Since the SS occurs only in the scenario 1, and the terminal device in the scenario 1 accesses the network through the primary carrier on the licensed spectrum, the primary carrier on the licensed spectrum can be used to send signaling to the terminal device (that is, the first indication information). ), to inform the terminal device whether the secondary carrier on the unlicensed spectrum transmits SS or SSB.
  • the terminal device may send the SSB by default on the secondary carrier on the unlicensed spectrum of the network device; only when the terminal device is in the CA scenario, and the signaling on the authorized spectrum is received, the secondary carrier is sent. It is SS, only to receive SS.
  • the network device sends the 1-bit bitmap signaling to the terminal device by using the primary carrier on the licensed spectrum, and uses the bitmap signaling to notify the terminal device whether the secondary carrier on the unlicensed spectrum transmits the SS or the SSB.
  • the network device configures, by using the primary carrier on the licensed spectrum, the secondary carrier on the unlicensed spectrum to send only the parameters of the SS, if the secondary spectrum is not authorized.
  • the carrier sends the SSB, and the network device does not configure this parameter for the terminal device.
  • FIG. 5 is a schematic structural diagram of a structure of a signal transmission apparatus according to an embodiment of the present invention.
  • the signal transmission apparatus of this embodiment is applied to a terminal device, where the apparatus includes:
  • a determining unit 501 configured to determine a synchronization signal transmission manner on the first carrier, where the synchronization signal transmission manner is a first transmission manner or a second transmission manner;
  • the first receiving unit 502 is configured to receive information on the first carrier according to the synchronization signal transmission manner.
  • the device further includes:
  • the second receiving unit 503 is configured to receive the first indication information that is sent by the network device, where the first indication information is used to determine that the synchronization signal transmission manner on the first carrier is the first transmission mode. Or the second transmission mode;
  • the determining unit 501 is configured to determine, according to the first indication information, the synchronization signal transmission manner on the first carrier.
  • the determining unit 501 when the second receiving unit 503 does not receive the first indication information that is sent by the network device, the determining unit 501 is configured to determine the location on the first carrier.
  • the synchronous signal transmission mode is the first transmission mode.
  • the synchronization signal transmission mode is the first transmission mode, and correspondingly,
  • the first receiving unit 502 is configured to receive a first SSB on the first carrier, where the first SSB includes a primary synchronization signal, a secondary synchronization signal, and a first PBCH.
  • the synchronization signal transmission mode is the second transmission mode, and correspondingly,
  • the first receiving unit 502 is configured to receive a second SSB on the first carrier, where the second SSB includes: a primary synchronization signal, a secondary synchronization signal, and a second PBCH.
  • the second PBCH includes at least one of the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the carrier sensing mode and the power threshold used by the network device for carrier sensing are not limited to the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the synchronization signal transmission mode is the second transmission mode, and correspondingly,
  • the first receiving unit 502 is configured to receive an SS on the first carrier, where the SS includes: a primary synchronization signal and a secondary synchronization signal.
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a downlink data channel or a downlink control channel;
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a padding signal
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier does not transmit information.
  • the communication network in which the network device is located is a carrier aggregation CA network, and the synchronization signal transmission manner on the first carrier is the second transmission mode;
  • the communication network in which the network device is located is not a CA network, and the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the frequency domain resource on the first carrier is a frequency domain resource that is shared by at least two communication devices of the network device, and the frequency domain resource on the second carrier is dedicated to the network device. Frequency domain resources.
  • FIG. 6 is a schematic structural diagram of a structure of a signal transmission apparatus according to an embodiment of the present invention.
  • the signal transmission apparatus of this embodiment is applied to a network device, where the apparatus includes:
  • a determining unit 601 configured to determine a synchronization signal transmission manner on the first carrier, where the synchronization signal transmission manner is a first transmission manner or a second transmission manner;
  • the first sending unit 602 is configured to send information to the terminal device on the first carrier according to the synchronization signal transmission manner.
  • the device further includes:
  • the second sending unit 603 is configured to send the first indication information to the terminal device on the second carrier, where the first indication information is used to determine that the synchronization signal transmission manner on the first carrier is the first transmission Mode or the second transmission mode.
  • the synchronization signal transmission mode is the first transmission mode, and correspondingly,
  • the first sending unit 602 is configured to send a first SSB on the first carrier, where the first SSB includes a primary synchronization signal, a secondary synchronization signal, and a first PBCH.
  • the synchronization signal transmission mode is the second transmission mode, and correspondingly,
  • the first sending unit 602 is configured to send a second SSB on the first carrier, where the second SSB includes a primary synchronization signal, a secondary synchronization signal, and a second PBCH.
  • the second PBCH includes at least one of the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the carrier sensing mode and the power threshold used by the network device for carrier sensing are not limited to the following information: a cell identifier, a beamformed identifier used by the synchronization signal, a transmit power of the synchronization signal, a resource allocation of the unlicensed uplink transmission, and an unlicensed uplink transmission.
  • the synchronization signal transmission mode is the second transmission mode, and correspondingly,
  • the first sending unit 602 is configured to send an SS on the first carrier, where the SS includes: a primary synchronization signal and a secondary synchronization signal.
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a downlink data channel or a downlink control channel;
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier is used to transmit a padding signal
  • the transmission resource corresponding to the first PBCH or the second PBCH in the first carrier does not transmit information.
  • the communication network where the network device is located is a CA network, and the determining unit determines that the synchronization signal transmission manner on the first carrier is the second transmission mode;
  • the determining unit determines that the synchronization signal transmission manner on the first carrier is the first transmission mode.
  • the frequency domain resource on the first carrier is a frequency domain resource that is shared by at least two communication devices of the network device, and the frequency domain resource on the second carrier is dedicated to the network device. Frequency domain resources.
  • Embodiments of the Invention may also be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer-executable instructions are stored, and the computer-executable instructions are executed by the processor to implement the foregoing signal transmission method of the embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
  • the computer device may be a terminal device or a network device.
  • computer device 100 may include one or more (only one shown) processor 1002 (processor 1002 may include, but is not limited to, a Micro Controller Unit (MCU) or a programmable logic device.
  • a processing device such as an FPGA (Field Programmable Gate Array), a memory 1004 for storing data, and a transmission device 1006 for a communication function.
  • FPGA Field Programmable Gate Array
  • FIG. 7 is merely illustrative and does not limit the structure of the above electronic device.
  • computer device 100 may also include more or fewer components than shown in FIG. 7, or have a different configuration than that shown in FIG.
  • the memory 1004 can be used to store software programs and modules of application software, such as program instructions/modules corresponding to the method in the embodiment of the present invention, and the processor 1002 executes various functional applications by running software programs and modules stored in the memory 1004. And data processing, that is, to achieve the above method.
  • Memory 1004 can include high speed random access memory, and can also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 1004 can further include memory remotely located relative to processor 1002, which can be connected to computer device 100 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 1006 is for receiving or transmitting data via a network.
  • the network specific examples described above may include a wireless network provided by a communication provider of computer device 100.
  • the transmission device 1006 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 1006 can be a radio frequency (RF) module for communicating with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF radio frequency
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

Abstract

本发明公开了一种信号传输方法及装置、计算机存储介质，所述方法包括：终端设备确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息。网络设备确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息。

Description

一种信号传输方法及装置、计算机存储介质 技术领域
本发明涉及无线通信技术领域，尤其涉及一种信号传输方法及装置、计算机存储介质。
背景技术
随着无线通信技术的发展，基于长期演进(LTE，Long Term Evolution)系统的授权辅助接入系统(LAA-LTE，Licensed-Assisted Access-Long Term Evolution)以载波聚合结构为基础，以授权频谱上的载波为主载波，以免授权频谱上的载波为辅载波向终端设备提供服务。在LAA-LTE系统中，主载波可以用于保证终端设备的初始接入以及一些关键业务的传输性能，而免授权频谱上的辅载波可用来对终端设备的非关键的大数据业务进行传输，从而达到平衡LTE小区负载的目的。
在LAA-LTE系统中的下行信号传输过程中，网络设备需要在免授权载波上发送发现参考信号(DRS，Discovery Signal)，从而使本小区的终端设备能完成和免授权载波上的小区的同步，也能使邻小区的终端设备能完成对本小区信号的无线资源管理(RRM，Radio Resource Management)测量。其中，LTE系统中的DRS包括主同步信号(PSS，Primary Synchronization Signal)、辅同步信号(SSS，Secondary Synchronization Signal)、小区公共参考信号(CRS，Cell-specific Reference Signal)，可选地，DRS还可以包括信道状态信息参考信号(CSI-RS，Channel-State Information Reference Signal)。
如图1所示，以DRS包括PSS、SSS和CRS为例，对LAA-LTE系统中的DRS的传输进行说明。在免授权频谱上，网络设备通过先听后说(LBT，Listen Before Talk)原则检测拿到信道使用权后，可以在网络设备为终端设备配置的发现信号测量时间配置(DMTC，Discovery signals Measurement Timing Configuration)窗内发送DRS，其中，如果DRS和物理下行共享信道(PDSCH，Physical Downlink Shared CHannel)/物理下行控制信道(PDCCH，Physical Downlink Control CHannel)/增强物理下行控制信道(EPDCCH，Enhanced Physical Downlink Control CHanne)等信道一起传输时，仅能在0号子帧(如图1中的#0)或5号子帧(如图1中的#5)上传输；如果DRS单独传输，即DRS不和PDSCH/PDCCH/EPDCCH等信道一起传输时，DRS可以在DMTC窗内第一个LBT成功的子帧上发送DRS信号。DRS在一个子帧上发送时，占用该子帧的前12个符号，如图1所示，PSS和SSS占用符号5和符号6，CRS占用符号0、符号4、符号7和符号11。
将新无线(NR，New Radio)技术应用到免授权频谱上时，可以有多种布网方式，例如载波聚合(CA，Carrier Aggregation)布网、双连接(DC，Dual Connectivity)布网或独立(SA，Standalone)布网等，由于LTE-LAA系统只支持CA布网，将现有LAA-LTE系统上的DRS传输方式应用到上述基于NR系统的布网方式时，不能满足需求。
发明内容
为解决上述技术问题，本发明实施例提供了一种信号传输方法及装置、计算机存储 介质。
本发明实施例提供的信号传输方法，包括：
终端设备确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；
所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息。
在一实施方式中，所述终端设备确定第一载波上的同步信号传输方式，包括：
所述终端设备在第二载波上接收网络设备发送的第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式；
所述终端设备根据所述第一指示信息确定所述第一载波上的所述同步信号传输方式。
在一实施方式中，所述终端设备确定第一载波上的同步信号传输方式，还包括：
所述终端设备在第二载波上未接收到所述网络设备发送的第一指示信息，则所述终端设备确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
在一实施方式中，所述终端设备确定第一载波上的同步信号传输方式，还包括：
所述终端设备通过所述第一载波接入网络，则所述终端设备确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
在一实施方式中，所述同步信号传输方式为所述第一传输方式，则所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息，包括：
所述终端设备接收所述第一载波上的第一同步信号块(SSB，Synchronization Signal Block)，所述第一SSB包括主同步信号、辅同步信号和第一物理广播信道(PBCH，Physical Broadcast Channel)。
在一实施方式中，所述第一PBCH中包括用于终端设备初始接入的MIB信息。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，则所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息，包括：
所述终端设备接收所述第一载波上的第二SSB，所述第二SSB包括：主同步信号、辅同步信号和第二PBCH。
在一实施方式中，所述第二PBCH传输的信息和所述第一PBCH传输的信息至少有一个不同。
在一实施方式中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，则所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息，包括：
所述终端设备接收所述第一载波上的同步信号SS，所述SS包括：主同步信号和辅同步信号。
在一实施方式中，所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
在一实施方式中，所述网络设备所在的通信网络是CA布网，则所述第一载波上的所述同步信号传输方式为所述第二传输方式；
所述网络设备所在的通信网络不是CA布网，则所述第一载波上的所述同步信号传 输方式为所述第一传输方式。
在一实施方式中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
在一实施方式中，所述第一载波上的频域资源为免授权频域资源，所述第二载波上的频域资源为授权频域资源。
本发明实施例提供的信号传输方法，包括：
网络设备确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；
所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息。
在一实施方式中，所述方法还包括：
所述网络设备在第二载波上向所述终端设备发送第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式。
在一实施方式中，所述同步信号传输方式为所述第一传输方式，则所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息，包括：
所述网络设备在所述第一载波上发送第一SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，则所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息，包括：
所述网络设备在所述第一载波上发送第二SSB，所述第二SSB包括主同步信号、辅同步信号和第二PBCH。
在一实施方式中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，则所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息，包括：
所述网络设备在所述第一载波上发送SS，所述SS包括：主同步信号和辅同步信号。
在一实施方式中，所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
在一实施方式中，所述网络设备确定第一载波上的同步信号传输方式，包括：
所述网络设备所在的通信网络是CA布网，则所述网络设备确定所述第一载波上的所述同步信号传输方式为所述第二传输方式；
所述网络设备所在的通信网络不是CA布网，则所述网络设备确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
在一实施方式中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
在一实施方式中，所述第一载波上的频域资源为免授权频域资源，所述第二载波上的频域资源为授权频域资源。
本发明实施例提供的信号传输装置，应用于终端设备中，所述装置包括：
确定单元，用于确定第一载波上的同步信号传输方式，所述同步信号传输方式为第 一传输方式或第二传输方式；
第一接收单元，用于根据所述同步信号传输方式接收所述第一载波上的信息。
在一实施方式中，所述装置还包括：
第二接收单元，用于在第二载波上接收网络设备发送的第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式；
所述确定单元，用于根据所述第一指示信息确定所述第一载波上的所述同步信号传输方式。
在一实施方式中，第二接收单元在第二载波上未接收到所述网络设备发送的第一指示信息的情况下，所述确定单元，用于确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
在一实施方式中，所述同步信号传输方式为所述第一传输方式，相应地，
所述第一接收单元，用于接收所述第一载波上的第一SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，相应地，
所述第一接收单元，用于接收所述第一载波上的第二SSB，所述第二SSB包括：主同步信号、辅同步信号和第二PBCH。
在一实施方式中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，相应地，
所述第一接收单元，用于接收所述第一载波上的SS，所述SS包括：主同步信号和辅同步信号。
在一实施方式中，所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
在一实施方式中，所述网络设备所在的通信网络是载波聚合CA布网，则所述第一载波上的所述同步信号传输方式为所述第二传输方式；
所述网络设备所在的通信网络不是CA布网，则所述第一载波上的所述同步信号传输方式为所述第一传输方式。
在一实施方式中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
在一实施方式中，所述第一载波上的频域资源为免授权频域资源，所述第二载波上的频域资源为授权频域资源。
本发明实施例提供的信号传输装置，应用于网络设备中，所述装置包括：
确定单元，用于确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；
第一发送单元，用于按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息。
在一实施方式中，所述装置还包括：
第二发送单元，用于在第二载波上向所述终端设备发送第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二 传输方式。
在一实施方式中，所述同步信号传输方式为所述第一传输方式，相应地，
所述第一发送单元，用于在所述第一载波上发送第一SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，相应地，
所述第一发送单元，用于在所述第一载波上发送第二SSB，所述第二SSB包括主同步信号、辅同步信号和第二PBCH。
在一实施方式中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，相应地，
所述第一发送单元，用于在所述第一载波上发送SS，所述SS包括：主同步信号和辅同步信号。
在一实施方式中，所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
在一实施方式中，所述网络设备所在的通信网络是CA布网，则所述确定单元确定所述第一载波上的所述同步信号传输方式为所述第二传输方式；
所述网络设备所在的通信网络不是CA布网，则所述确定单元确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
在一实施方式中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
在一实施方式中，所述第一载波上的频域资源为免授权频域资源，所述第二载波上的频域资源为授权频域资源。
本发明实施例提供的计算机存储介质，其上存储有计算机可执行指令，该计算机可执行指令被处理器执行时实现上述的信号传输方法。
本发明实施例的技术方案中，对于CA布网的免授权频谱上的载波，由于网络设备不需要向终端设备发送用于初始接入的PBCH，在这种情况下网络设备可以对PBCH中发送的内容进行修改，以辅助终端设备进行数据传输；或者，网络设备可以将用于发送PBCH的频域资源用于传输数据信道或控制信道，以提高资源利用率。此外，网络设备可以通过授权频谱上的载波向终端设备发送指示信息，从而使该免授权频谱上的载波服务的终端设备可以正确接收同步信号。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为在DMTC窗内发送DRS的时域结构示意图；
图2为SSB的时频资源示意图；
图3为本发明实施例的信号传输方法的流程示意图一；
图4为本发明实施例的信号传输方法的流程示意图二；
图5为本发明实施例的信号传输装置的结构组成示意图一；
图6为本发明实施例的信号传输装置的结构组成示意图二；
图7为本发明实施例的计算机设备的结构组成示意图。
具体实施方式
为便于理解本发明实施例的技术方案，以下对本发明实施例涉及到的相关技术进行说明。
1)免授权频谱
免授权频谱是国家和地区划分的可用于无线电设备通信的频谱，该频谱通常被认为是共享频谱，即不同通信系统中的通信设备只要满足国家或地区在该频谱上设置的法规要求，就可以使用该频谱，不需要向政府申请专有的频谱授权。为了让使用免授权频谱进行无线通信的各个通信系统在该频谱上能够友好共存，一些国家或地区规定了使用免授权频谱必须满足的法规要求。例如，在欧洲地区，通信设备遵循LBT原则，即通信设备在免授权频谱的信道上进行信号发送前，需要先进行信道侦听，只有当信道侦听结果为信道空闲时，该通信设备才能进行信号发送；如果通信设备在免授权频谱的信道上的信道侦听结果为信道忙，该通信设备不能进行信号发送。且为了保证公平性，在一次传输中，通信设备使用免授权频谱的信道进行信号传输的时长不能超过最大信道占用时间(MCOT，Maximum Channel Occupation Time)。又例如，为了避免对在免授权频谱信道上传输的信号造成子带干扰，也为了提高通信设备在对免授权频谱的信道进行检测时的检测准确性，在免授权频谱信道上传输的信号需要至少占用该信道带宽的一定比例，例如，5GHz频段为信号占用信道带宽的80％，60GHz频段为信号占用信道带宽的70％。又例如，为了避免在免授权频谱的信道上传输的信号的功率太大，影响该信道上的其他重要信号，例如雷达信号等的传输，法规规定了通信设备使用免授权频谱的信道进行信号传输时的最大功率谱密度。
2)网络架构
本发明实施例可以应用于各种通信系统，例如：全球移动通讯(GSM，Global System of Mobile communication)系统、码分多址(CDMA，Code Division Multiple Access)系统、宽带码分多址(WCDMA，Wideband Code Division Multiple Access)系统、通用分组无线业务(GPRS，General Packet Radio Service)、通用移动通信系统(UMTS，Universal Mobile Telecommunication System)、LTE系统及LTE系统的演进系统，例如先进的长期演进(LTE-A，Advanced long term evolution)系统、NR系统及NR系统的演进系统，例如免授权频谱上的NR(NR-U，NR-based access to Unlicensed spectrum)系统、或下一代通信系统等。
本发明实施例可以还应用于设备到设备(D2D，Device to Device)通信，机器到机器(M2M，Machine to Machine)通信，机器类型通信(MTC，Machine Type Communication)，以及车辆间(V2V，Vehicle to Vehicle)通信。
本发明实施例中的通信系统可以应用于授权频谱，其中，授权频谱是网络设备专用的频谱。本发明实施例中的通信系统也可以应用于免授权频谱，其中，免授权频谱是至少两个通信设备共享的频谱，例如2.4GHz，5GHz，37GHz或60GHz的频谱。
本发明实施例中的通信系统可以应用于CA布网场景，也可以应用于DC布网场景，还可以应用于SA布网场景。
当本发明实施例中的通信系统应用于免授权频谱，且布网场景是CA时，该CA布网场景可以是主载波在授权频谱上，辅载波在免授权频谱上，主载波和辅载波通过理想回传(backhaul)连接。
当本发明实施例中的通信系统应用于免授权频谱，且布网场景是DC时，该DC布网场景可以是主载波在授权频谱上，辅载波在免授权频谱上，主载波和辅载波通过非理 想backhaul连接，其中，主载波上的系统可以和辅载波上的系统属于不同的系统，例如，主载波上的系统为LTE系统，辅载波上的系统为NR系统，或者，主载波上的系统也可以和辅载波上的系统属于相同的系统，例如，主载波和辅载波上的系统均为LTE系统或均为NR系统。
当本发明实施例中的通信系统应用于免授权频谱，且布网场景是SA时，终端设备可以通过免授权频谱上的系统接入网络。
本发明实施例结合网络设备和终端设备描述了各个实施例，其中：
终端设备也可以称为用户设备(UE，User Equipment)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备可以是无线局域网(WLAN，Wireless Local Area Networks)中的站点(ST，STAION)，可以是蜂窝电话、无绳电话、会话启动协议(SIP，Session Initiation Protocol)电话、无线本地环路(WLL，Wireless Local Loop)站、个人数字处理(PDA，Personal Digital Assistant)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及下一代通信系统，例如，第五代通信(5G，fifth-generation)网络中的终端设备或者未来演进的公共陆地移动网络(PLMN，Public Land Mobile Network)网络中的终端设备等。在本发明实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。
网络设备可以是用于与移动设备通信的设备，网络设备可以是WLAN中的接入点(AP，Access Point)，GSM或CDMA中的基站(BTS，Base Transceiver Station)，也可以是WCDMA中的基站(NB，NodeB)，还可以是LTE中的演进型基站(eNB或eNodeB，Evolutional Node B)，或者中继站或接入点，或者车载设备、可穿戴设备以及NR网络中的网络设备或者未来演进的PLMN网络中的网络设备等。
在本发明实施例中，网络设备为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
在本发明实施例中，LTE系统或NR系统中的载波上可以同时有多个小区同频工作，在某些特殊场景下，也可以认为上述载波与小区的概念等同。例如在CA场景下，当为UE配置辅载波时，会同时携带辅载波的载波索引和工作在该辅载波的辅小区的小区标识(Cell ID，Cell Indentify)，在这种情况下，可以认为载波与小区的概念等同，比如UE接入一个载波和接入一个小区是等同的。
本发明实施例可以应用于上行或下行的物理信道或参考信号，例如，物理信道可以包括物理下行控制信道(PDCCH，Physical Downlink Control CHannel)、物理下行共享信道(PDSCH，Physical Downlink Shared CHannel)、物理HARQ指示信道(PHICH，Physical Hybrid-ARQ Indicator CHannel)、物理广播信道(PBCH，Physical Broadcast CHannel)、物理多播信道(PMCH，Physical Multicast CHannel)、物理随机接入信道(PRACH，Physical Random Access CHannel)、物理上行控制信道(PUCCH，Physical Uplink Control CHannel)、物理上行共享信道(PUSCH，Physical Uplink Shared CHannel)等，参考信号可以包括解调参考信号(DMRS，Demodulation Reference Signal)、探测参考信号(SRS，Sounding Reference Signal)、信道状态信息参考信号(CSI-RS，Channel State  Information Reference Signal)、相位跟踪参考信号(PT-RS，Phase Tracking Reference Signal)等。
当NR技术应用到免授权频谱上时，布网可以有多种方式，例如CA、DC或SA等，不同的布网方式对终端设备接入该免授权频谱上的小区的要求不同。下面对这些场景进行分析：
场景1：CA方式，即授权频谱上的NR载波为主载波，免授权频谱上的NR载波为辅载波，主载波和辅载波通过理想backhaul连接，并且，免授权频谱上辅载波支持的子载波间隔不大于预定义的子载波间隔，例如免授权频谱上辅载波支持的子载波间隔不大于120kHz。
在这种场景下，网络设备在主载波(授权频谱)上发送同步信号、MIB、SIB等信息，终端设备可以通过接收主载波上发送的同步信号、MIB、SIB等信息接入网络，然后根据主载波上的配置信息在辅载波上进行数据传输。相应地，在辅载波上，网络设备需要发送PSS和SSS等参考信号，以使终端设备完成辅载波上的RRM测量，从而完成辅小区管理。
场景2：CA方式，即授权频谱上的NR载波为主载波，免授权频谱上的NR载波为辅载波，主载波和辅载波通过理想backhaul连接，并且，免授权频谱上辅载波支持的子载波间隔不小于预定义的子载波间隔，例如免授权频谱上辅载波支持的子载波间隔不小于240kHz。
场景3：异系统DC方式，即授权频谱上的LTE载波为主载波，免授权频谱上的NR载波为辅载波，主载波和辅载波通过非理想backhaul连接。
场景4：同系统DC方式，即授权频谱上的NR载波为主载波，免授权频谱上的NR载波为辅载波，主载波和辅载波通过非理想backhaul连接。
在场景2、3、4中，网络设备在主载波上发送同步信号、MIB、SIB等信息，终端设备可以通过接收主载波上发送的同步信号、MIB、SIB等信息接入网络，但是，终端设备根据主载波获得的时间同步信息不能正确判断出辅载波上的子帧信息(场景2是因为辅载波上的子载波间隔太大，对应的符号太短；场景3和场景4是因为主载波和辅载波不共站)，因此，在免授权上的辅载波上需要发送同步信号和PBCH，以使终端设备能正确获得辅载波上的时间同步。
场景5：SA方式，即免授权频谱上的NR载波为主载波。在这种场景中，网络设备需要在免授权频谱上的主载波上发送同步信号、MIB、SIB等信息，以使终端设备可以通过接收主载波上发送的同步信号、MIB、SIB等信息接入网络。
因此，在上述5个场景中，在免授权频谱上的NR载波上，除了场景1只需要发用于RRM测量的同步信号，场景2、3、4、5都需要发同步信号和PBCH。应理解，同步信号包括PSS和SSS，同步信号和PBCH组成了SSB，如图2所示。
本发明实施例的技术方案，旨在解决在NR-U系统中，如何发送和DRS类似的同步信号，以使该同步信号能满足NR-U系统服务的用户的测量/同步需求的问题。下面对本发明实施例的技术方案进行描述。
图3为本发明实施例的信号传输方法的流程示意图一，本发明实施例中，如图3所示，所述信号传输方法包括以下步骤：
步骤301：终端设备确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式。
本发明实施例中，终端设备可以基于以下方式来确定第一载波上的同步信号传输方式。
方式一：所述终端设备在第二载波上接收网络设备发送的第一指示信息，所述第一 指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式；所述终端设备根据所述第一指示信息确定所述第一载波上的所述同步信号传输方式。
这里，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。换言之，所述第一载波称为免授权频谱上的载波，所述第二载波为授权频谱上的载波。应理解，第一载波包括免授权频谱上的至少一个载波，第二载波包括授权频谱上的至少一个载波。
举例来说，网络设备在第二载波上通过1个比特位来表示第一指示信息，该比特位为1，代表同步信号传输方式为第一传输方式，该比特位为0，代表同步信号传输方式为第二传输方式；当然，也可以是该比特位为0，代表同步信号传输方式为第一传输方式，该比特位为1，代表同步信号传输方式为第二传输方式。
方式二：如果所述终端设备在第二载波上未接收到所述网络设备发送的第一指示信息，则所述终端设备确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。如果所述终端设备在第二载波上接收到所述网络设备发送的第一指示信息，则所述终端设备确定所述第一载波上的所述同步信号传输方式为所述第二传输方式。
这里，可以不考虑第一指示信息具体的内容，只要终端设备在第二载波上接收到第一指示信息(或者说第一指示信息对应的参数被配置)，就认为所述同步信号传输方式为所述第二传输方式；如果终端设备在第二载波上未接收到第一指示信息(或者说第一指示信息对应的参数未被配置)，则认为所述同步信号传输方式为所述第一传输方式。
方式三：结合上述方式一和方式二，如果所述终端设备在第二载波上未接收到所述网络设备发送的第一指示信息，则所述终端设备确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。如果所述终端设备在第二载波上接收到所述网络设备发送的第一指示信息，则所述终端设备根据所述第一指示信息确定所述第一载波上的所述同步信号传输方式，可能为第一传输方式，也可能为第二传输方式。
方式四：如果所述终端设备没有被配置第二载波，或者，所述终端设备通过所述第一载波接入网络，则所述终端设备确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
步骤302：所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息。
1)所述同步信号传输方式为所述第一传输方式
所述终端设备接收所述第一载波上的第一同步信号块SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
可选地，第一PBCH中包括用于终端设备初始接入的MIB信息。
可选地，第一PBCH中包括辅助终端设备进行第一载波上的数据传输的信息，例如同步信号的发射功率等信息。
2)所述同步信号传输方式为所述第二传输方式
2.1)第二传输方式的第一种实现方式：
所述终端设备接收所述第一载波上的第二SSB，所述第二SSB包括：主同步信号、辅同步信号和第二PBCH。
这里，第二PBCH传输的信息和第一PBCH传输的信息至少有一个不同。例如：所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
可选地，同步信号的发射功率可用于终端设备测量下行信道的路损或下行信道的质量信息。
可选地，免授权(Grant free)上行传输的资源分配是半静态配置的时频资源。
可选地，免授权(Grant free)上行传输使用的载波侦听方式包括LAA系统中的上行信道接入过程(Uplink channel access procedures)，例如Type 1或Type 2信道接入等。
应理解，第二PBCH可以包括用于终端设备初始接入的MIB信息，也可以不包括用于终端设备初始接入的MIB信息，本发明对此并不限定。
2.2)第二传输方式的第二种实现方式：
所述终端设备接收所述第一载波上的SS，所述SS包括：主同步信号和辅同步信号。
这里，第一载波上不需要发送PBCH(例如第一PBCH或第二PBCH)，将该PBCH对应的传输资源(例如，图2中PBCH占用的时频资源)传输其他信息，例如下行数据信道或下行控制信道。当然，也可以传输填充信号，或者不发送任何信息。
可选地，网络设备对上述第一载波上的PBCH对应的传输资源的使用方式可以是预定义的，或者是通过通信标准规定的，或者是通过信令通知给终端设备的。如果该PBCH对应的传输资源用于传输下行数据信道或下行控制信道，终端设备在该PBCH对应的传输资源上接收信息；如果该PBCH对应的传输资源用于传输填充信号，或者不发送任何信号，则终端设备在该PBCH对应的传输资源上不接收信息。
上述方案中，可选地，所述网络设备所在的通信网络是CA布网，则所述第一载波上的所述同步信号传输方式为所述第二传输方式；所述网络设备所在的通信网络不是CA布网，则所述第一载波上的所述同步信号传输方式为所述第一传输方式。
可选地，结合上述5种布网场景的同步信号传输方式可以描述如下：
场景1：如果所述终端设备和所述网络设备所在的通信网络为CA布网，且所述第一载波支持的子载波间隔小于或等于第一频宽(如120kHz)，则所述第一载波上的所述同步信号传输方式为所述第二传输方式。
场景2：如果所述终端设备和所述网络设备所在的通信网络为CA布网，且所述第一载波支持的子载波间隔大于或等于第二频宽(如240kHz)，则所述第一载波上的所述同步信号传输方式为所述第一传输方式。
场景3和场景4：如果所述终端设备和所述网络设备所在的通信网络为DC布网(异系统DC方式或同系统DC方式)，则所述第一载波上的所述同步信号传输方式为所述第一传输方式。
场景5：如果所述终端设备和所述网络设备所在的通信网络为SA布网，则所述第一载波上的所述同步信号传输方式为所述第一传输方式。
图4为本发明实施例的信号传输方法的流程示意图二，本发明实施例中，如图4所示，所述信号传输方法包括以下步骤：
步骤401：网络设备确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式。
本发明实施例中，可选地，如果所述网络设备所在的通信网络是CA布网，则所述网络设备确定所述第一载波上的所述同步信号传输方式为所述第二传输方式；如果所述网络设备所在的通信网络不是CA布网，则所述网络设备确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
可选地，结合上述5种布网场景网络设备确定的同步信号传输方式可以描述如下：
场景1：如果所述终端设备和所述网络设备所在的通信网络为CA布网，且所述第一载波支持的子载波间隔小于或等于第一频宽(如120kHz)，则确定所述第一载波上的所述同步信号传输方式为所述第二传输方式。
场景2：如果所述终端设备和所述网络设备所在的通信网络为CA布网，且所述第一载波支持的子载波间隔大于或等于第二频宽(如240kHz)，则确定所述第一载波上的 所述同步信号传输方式为所述第一传输方式。
场景3和场景4：如果所述终端设备和所述网络设备所在的通信网络为DC布网(异系统DC方式或同系统DC方式)，则确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
场景5：如果所述终端设备和所述网络设备所在的通信网络为SA布网，则确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
本发明实施例中，网络设备为了让终端设备知道在所述第一载波上的同步信号传输方式，可以在第二载波上向所述终端设备发送第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式。
这里，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。换言之，所述第一载波称为免授权频谱上的载波，所述第二载波为授权频谱上的载波。
举例来说，网络设备在第二载波上通过1个比特位来表示第一指示信息，该比特位为1，代表同步信号传输方式为第一传输方式，该比特位为0，代表同步信号传输方式为第二传输方式；当然，也可以是该比特位为0，代表同步信号传输方式为第一传输方式，该比特位为1，代表同步信号传输方式为第二传输方式。
当然，网络设备也可以不向终端设备发送第一指示信息，通过隐式的方式让终端设备知道在所述第一载波上的同步信号传输方式。例如：网络设备不发送第一指示信息，代表同步信号传输方式为所述第一传输方式；网络设备发送第一指示信息，代表同步信号传输方式为所述第二传输方式，或者，网络设备发送第一指示信息让终端设备根据该第一指示信息确定同步信号传输方式是第一传输方式还是第二传输方式。
步骤402：所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息。
1)所述同步信号传输方式为所述第一传输方式
所述网络设备在所述第一载波上发送第一SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
可选地，第一PBCH中包括用于终端设备初始接入的MIB信息。
可选地，第一PBCH中包括辅助终端设备进行第一载波上的数据传输的信息，例如同步信号的发射功率等信息。
2)所述同步信号传输方式为所述第二传输方式
2.1)所述网络设备在所述第一载波上发送第二SSB，所述第二SSB包括主同步信号、辅同步信号和第二PBCH。
这里，第二PBCH传输的信息和第一PBCH传输的信息至少有一个不同。例如：所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
应理解，第二PBCH可以包括用于终端设备初始接入的MIB信息，也可以不包括用于终端设备初始接入的MIB信息，本发明对此并不限定。
2.2)所述网络设备在所述第一载波上发送SS，所述SS包括：主同步信号和辅同步信号。
其中，所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，所述第一载波中与第一PBCH或第二PBCH 对应的传输资源不发送信息。
以下结合具体示例对本发明实施例的技术方案再做描述。
应用示例一
在免授权频谱上的NR载波上均发送SSB，在上述场景1中，PBCH中发送的信息不仅对于终端设备的数据传输没有任何用处，且占用了本可以用于数据信道或控制信道传输的频谱资源。在这种情况下，对PBCH中发送的内容进行修改，例如：在PBCH中发送一些该场景下可以辅助终端设备进行数据传输的信息，以免浪费资源。或者，在PBCH所占用的信道资源上发填充信号，以避免本不该接收该PBCH信息的终端设备造成为系统的误解。
其中，该辅助终端设备进行数据传输的信息可以为小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权(grant free)上行传输的资源分配、免授权上行传输使用的载波侦听方式、或网络设备进行载波侦听时使用的功率门限等中的至少一个。
应理解，由于不同场景下发送的PBCH中的内容不同，例如，场景1中发的是PBCH1(也即第二PBCH)，场景2、3、4、5中发的是PBCH2(也即第一PBCH)，对于终端设备来讲，需要明确当前收到的PBCH是按PBCH1解析还是按PBCH2解析，才能正确接收PBCH。由于PBCH1仅在场景1中发生，而场景1中终端设备是通过授权频谱上的主载波接入网络的，因此可以通过授权频谱上的主载波向终端设备发送信令(也即第一指示信息)，告知终端设备免授权频谱上的辅载波发送的是PBCH1还是PBCH2。从终端设备的角度，终端设备可以默认按网络设备在免授权频谱上的辅载波上发送的是PBCH2；只有当终端设备收到授权频谱上的信令确认辅载波上发送的是PBCH1，才按PBCH1接收。
可选地，网络设备通过授权频谱上的主载波向终端设备发送1比特的位图信令，并通过该位图信令告知终端设备免授权频谱上的辅载波发送的是PBCH1还是PBCH2。可选地，如果免授权频谱上的辅载波发送的是PBCH1，网络设备通过授权频谱上的主载波为终端设备配置免授权频谱上的辅载波PBCH1相关参数，如果免授权频谱上的辅载波发送的是PBCH2，网络设备则不为终端设备配置PBCH1相关参数。
应用示例二
在上述场景2、3、4、5中，在免授权频谱上的NR载波上均发送SSB，在场景1中，在免授权频谱上的NR载波上只发送SS，不发送PBCH。在场景1中，由于没有发送PBCH相关的任何信息，为了避免浪费资源，可以将用于PBCH发送的频谱资源用于数据信道或控制信道传输。
应理解，由于不同场景下发送的用于同步的信号不同，例如，场景1中发的是SS，场景2、3、4、5中发的是SSB，对于终端设备来讲，需要明确当前网络设备发送的是SS还是SSB，从而完成正确的速率匹配。由于SS仅在场景1中发生，而场景1中终端设备是通过授权频谱上的主载波接入网络的，因此可以通过授权频谱上的主载波向终端设备发送信令(也即第一指示信息)，告知终端设备免授权频谱上的辅载波发送的是SS还是SSB。从终端设备的角度，终端设备可以默认按网络设备在免授权频谱上的辅载波上发送的是SSB；只有当终端设备是CA场景，且收到授权频谱上的信令确认辅载波上发送的是SS，才只接收SS。
可选地，网络设备通过授权频谱上的主载波向终端设备发送1比特的位图信令，并通过该位图信令告知终端设备免授权频谱上的辅载波发送的是SS还是SSB。可选地，如果免授权频谱上的辅载波发送的是SS，网络设备通过授权频谱上的主载波为终端设备配置免授权频谱上的辅载波仅发送SS的参数，如果免授权频谱上的辅载波 发送的是SSB，网络设备则不为终端设备配置该参数。
图5为本发明实施例的信号传输装置的结构组成示意图一，本实施例的信号传输装置应用于终端设备中，所述装置包括：
确定单元501，用于确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；
第一接收单元502，用于根据所述同步信号传输方式接收所述第一载波上的信息。
在一实施方式中，所述装置还包括：
第二接收单元503，用于在第二载波上接收网络设备发送的第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式；
所述确定单元501，用于根据所述第一指示信息确定所述第一载波上的所述同步信号传输方式。
在一实施方式中，第二接收单元503在第二载波上未接收到所述网络设备发送的第一指示信息的情况下，所述确定单元501，用于确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
在一实施方式中，所述同步信号传输方式为所述第一传输方式，相应地，
所述第一接收单元502，用于接收所述第一载波上的第一SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，相应地，
所述第一接收单元502，用于接收所述第一载波上的第二SSB，所述第二SSB包括：主同步信号、辅同步信号和第二PBCH。
在一实施方式中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，相应地，
所述第一接收单元502，用于接收所述第一载波上的SS，所述SS包括：主同步信号和辅同步信号。
在一实施方式中，所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
在一实施方式中，所述网络设备所在的通信网络是载波聚合CA布网，则所述第一载波上的所述同步信号传输方式为所述第二传输方式；
所述网络设备所在的通信网络不是CA布网，则所述第一载波上的所述同步信号传输方式为所述第一传输方式。
在一实施方式中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
本领域技术人员应当理解，图5所示的信号传输装置中的各单元的实现功能可参照前述信号传输方法的相关描述而理解。图5所示的信号传输装置中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。
图6为本发明实施例的信号传输装置的结构组成示意图二，本实施例的信号传输装置应用于网络设备中，所述装置包括：
确定单元601，用于确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；
第一发送单元602，用于按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息。
在一实施方式中，所述装置还包括：
第二发送单元603，用于在第二载波上向所述终端设备发送第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式。
在一实施方式中，所述同步信号传输方式为所述第一传输方式，相应地，
所述第一发送单元602，用于在所述第一载波上发送第一SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，相应地，
所述第一发送单元602，用于在所述第一载波上发送第二SSB，所述第二SSB包括主同步信号、辅同步信号和第二PBCH。
在一实施方式中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
在一实施方式中，所述同步信号传输方式为所述第二传输方式，相应地，
所述第一发送单元602，用于在所述第一载波上发送SS，所述SS包括：主同步信号和辅同步信号。
在一实施方式中，所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
在一实施方式中，所述网络设备所在的通信网络是CA布网，则所述确定单元确定所述第一载波上的所述同步信号传输方式为所述第二传输方式；
所述网络设备所在的通信网络不是CA布网，则所述确定单元确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
在一实施方式中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
本领域技术人员应当理解，图6所示的信号传输装置中的各单元的实现功能可参照前述信号传输方法的相关描述而理解。图6所示的信号传输装置中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。
本发明实施例上述信号传输装置如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，其中存储有计算机可执行指令，该计算机可执行指令被处理器执行时实现本发明实施例的上述信号传输方法。
图7为本发明实施例的计算机设备的结构组成示意图，该计算机设备可以是终端设备，也可以是网络设备。如图7所示，计算机设备100可以包括一个或多个(图中仅示出一个)处理器1002(处理器1002可以包括但不限于微处理器(MCU，Micro Controller Unit)或可编程逻辑器件(FPGA，Field Programmable Gate Array)等的处理装置)、用于存储数据的存储器1004、以及用于通信功能的传输装置1006。本领域普通技术人员可以理解，图7所示的结构仅为示意，其并不对上述电子装置的结构造成限定。例如，计算机设备100还可包括比图7中所示更多或者更少的组件，或者具有与图7所示不同的配置。
存储器1004可用于存储应用软件的软件程序以及模块，如本发明实施例中的方法对应的程序指令/模块，处理器1002通过运行存储在存储器1004内的软件程序以及模块，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器1004可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器1004可进一步包括相对于处理器1002远程设置的存储器，这些远程存储器可以通过网络连接至计算机设备100。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置1006用于经由一个网络接收或者发送数据。上述的网络具体实例可包括计算机设备100的通信供应商提供的无线网络。在一个实例中，传输装置1006包括一个网络适配器(NIC，Network Interface Controller)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置1006可以为射频(RF，Radio Frequency)模块，其用于通过无线方式与互联网进行通讯。
本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。
在本发明所提供的几个实施例中，应该理解到，所揭露的方法和智能设备，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个第二处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。

Claims (39)

  1. 一种信号传输方法，所述方法包括：
    终端设备确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；
    所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息。
  2. 根据权利要求1所述方法，其中，所述终端设备确定第一载波上的同步信号传输方式，包括：
    所述终端设备在第二载波上接收网络设备发送的第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式；
    所述终端设备根据所述第一指示信息确定所述第一载波上的所述同步信号传输方式。
  3. 根据权利要求1或2所述方法，其中，所述终端设备确定第一载波上的同步信号传输方式，还包括：
    所述终端设备在第二载波上未接收到所述网络设备发送的第一指示信息，则所述终端设备确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
  4. 根据权利要求1至3任一项所述方法，其中，所述同步信号传输方式为所述第一传输方式，则所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息，包括：
    所述终端设备接收所述第一载波上的第一同步信号块SSB，所述第一SSB包括主同步信号、辅同步信号和第一物理广播信道PBCH。
  5. 根据权利要求1至4任一项所述方法，其中，所述同步信号传输方式为所述第二传输方式，则所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息，包括：
    所述终端设备接收所述第一载波上的第二SSB，所述第二SSB包括：主同步信号、辅同步信号和第二PBCH。
  6. 根据权利要求5所述方法，其中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
  7. 根据权利要求1至4任一项所述方法，其中，所述同步信号传输方式为所述第二传输方式，则所述终端设备根据所述同步信号传输方式接收所述第一载波上的信息，包括：
    所述终端设备接收所述第一载波上的同步信号SS，所述SS包括：主同步信号和辅同步信号。
  8. 根据权利要求7所述方法，其中，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
  9. 根据权利要求1至8任一项所述方法，其中，
    所述网络设备所在的通信网络是载波聚合CA布网，则所述第一载波上的所述同步信号传输方式为所述第二传输方式；
    所述网络设备所在的通信网络不是CA布网，则所述第一载波上的所述同步信号传输方式为所述第一传输方式。
  10. 根据权利要求1至9任一项所述方法，其中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
  11. 一种信号传输方法，所述方法包括：
    网络设备确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；
    所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息。
  12. 根据权利要求11所述的方法，其中，所述方法还包括：
    所述网络设备在第二载波上向所述终端设备发送第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式。
  13. 根据权利要求11或12所述的方法，其中，所述同步信号传输方式为所述第一传输方式，则所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息，包括：
    所述网络设备在所述第一载波上发送第一SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
  14. 根据权利要求11至13任一项所述的方法，其中，所述同步信号传输方式为所述第二传输方式，则所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息，包括：
    所述网络设备在所述第一载波上发送第二SSB，所述第二SSB包括主同步信号、辅同步信号和第二PBCH。
  15. 根据权利要求14所述的方法，其中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
  16. 根据权利要求11至13任一项所述的方法，其中，所述同步信号传输方式为所述第二传输方式，则所述网络设备按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息，包括：
    所述网络设备在所述第一载波上发送SS，所述SS包括：主同步信号和辅同步信号。
  17. 根据权利要求16所述的方法，其中，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
  18. 根据权利要求11至17任一项所述的方法，其中，所述网络设备确定第一载波上的同步信号传输方式，包括：
    所述网络设备所在的通信网络是CA布网，则所述网络设备确定所述第一载波上 的所述同步信号传输方式为所述第二传输方式；
    所述网络设备所在的通信网络不是CA布网，则所述网络设备确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
  19. 根据权利要求11至18任一项所述的方法，其中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
  20. 一种信号传输装置，应用于终端设备中，所述装置包括：
    确定单元，用于确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；
    第一接收单元，用于根据所述同步信号传输方式接收所述第一载波上的信息。
  21. 根据权利要求20所述的装置，其中，所述装置还包括：
    第二接收单元，用于在第二载波上接收网络设备发送的第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式；
    所述确定单元，用于根据所述第一指示信息确定所述第一载波上的所述同步信号传输方式。
  22. 根据权利要求20或21所述的装置，其中，第二接收单元在第二载波上未接收到所述网络设备发送的第一指示信息的情况下，所述确定单元，用于确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
  23. 根据权利要求20至22任一项所述的装置，其中，所述同步信号传输方式为所述第一传输方式，相应地，
    所述第一接收单元，用于接收所述第一载波上的第一SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
  24. 根据权利要求20至23任一项所述的装置，其中，所述同步信号传输方式为所述第二传输方式，相应地，
    所述第一接收单元，用于接收所述第一载波上的第二SSB，所述第二SSB包括：主同步信号、辅同步信号和第二PBCH。
  25. 根据权利要求24所述的装置，其中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
  26. 根据权利要求20至23任一项所述的装置，其中，所述同步信号传输方式为所述第二传输方式，相应地，
    所述第一接收单元，用于接收所述第一载波上的SS，所述SS包括：主同步信号和辅同步信号。
  27. 根据权利要求26所述的装置，其中，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
  28. 根据权利要求20至27任一项所述的装置，其中，
    所述网络设备所在的通信网络是载波聚合CA布网，则所述第一载波上的所述同步信号传输方式为所述第二传输方式；
    所述网络设备所在的通信网络不是CA布网，则所述第一载波上的所述同步信号传输方式为所述第一传输方式。
  29. 根据权利要求20至28任一项所述的装置，其中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
  30. 一种信号传输装置，应用于网络设备中，所述装置包括：
    确定单元，用于确定第一载波上的同步信号传输方式，所述同步信号传输方式为第一传输方式或第二传输方式；
    第一发送单元，用于按照所述同步信号传输方式在所述第一载波上向所述终端设备发送信息。
  31. 根据权利要求30所述的装置，其中，所述装置还包括：
    第二发送单元，用于在第二载波上向所述终端设备发送第一指示信息，所述第一指示信息用于确定所述第一载波上的同步信号传输方式为所述第一传输方式或所述第二传输方式。
  32. 根据权利要求30或31所述的装置，其中，所述同步信号传输方式为所述第一传输方式，相应地，
    所述第一发送单元，用于在所述第一载波上发送第一SSB，所述第一SSB包括主同步信号、辅同步信号和第一PBCH。
  33. 根据权利要求30至32任一项所述的装置，其中，所述同步信号传输方式为所述第二传输方式，相应地，
    所述第一发送单元，用于在所述第一载波上发送第二SSB，所述第二SSB包括主同步信号、辅同步信号和第二PBCH。
  34. 根据权利要求33所述的装置，其中，所述第二PBCH包括以下至少一种信息：小区标识、同步信号使用的波束成型的标识、同步信号的发射功率、免授权上行传输的资源分配、免授权上行传输使用的载波侦听方式、网络设备进行载波侦听时使用的功率门限。
  35. 根据权利要求30至32任一项所述的装置，其中，所述同步信号传输方式为所述第二传输方式，相应地，
    所述第一发送单元，用于在所述第一载波上发送SS，所述SS包括：主同步信号和辅同步信号。
  36. 根据权利要求35所述的装置，其中，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输下行数据信道或下行控制信道；或者，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源用于传输填充信号；或者，
    所述第一载波中与第一PBCH或第二PBCH对应的传输资源不发送信息。
  37. 根据权利要求30至36任一项所述的装置，其中，
    所述网络设备所在的通信网络是CA布网，则所述确定单元确定所述第一载波上的所述同步信号传输方式为所述第二传输方式；
    所述网络设备所在的通信网络不是CA布网，则所述确定单元确定所述第一载波上的所述同步信号传输方式为所述第一传输方式。
  38. 根据权利要求30至37任一项所述的装置，其中，所述第一载波上的频域资源为包括所述网络设备的至少两个通信设备共享的频域资源，所述第二载波上的频域资源为所述网络设备专用的频域资源。
  39. 一种计算机存储介质，其上存储有计算机可执行指令，该计算机可执行指令被处理器执行时实现权利要求1至10任一项所述的方法步骤，或者权利要求11至19任一项所述的方法步骤。
PCT/CN2018/070068 2018-01-02 2018-01-02 一种信号传输方法及装置、计算机存储介质 WO2019134072A1 (zh)

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