WO2019241936A1 - 无线通信方法、终端设备和网络设备 - Google Patents

无线通信方法、终端设备和网络设备 Download PDF

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Publication number
WO2019241936A1
WO2019241936A1 PCT/CN2018/092035 CN2018092035W WO2019241936A1 WO 2019241936 A1 WO2019241936 A1 WO 2019241936A1 CN 2018092035 W CN2018092035 W CN 2018092035W WO 2019241936 A1 WO2019241936 A1 WO 2019241936A1
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WIPO (PCT)
Prior art keywords
network device
reference signal
frequency band
terminal device
information
Prior art date
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PCT/CN2018/092035
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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.)
Filing date
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 CN201880094813.8A priority Critical patent/CN112292901A/zh
Priority to KR1020217000564A priority patent/KR20210022634A/ko
Priority to EP18922994.1A priority patent/EP3809784A4/en
Priority to AU2018428626A priority patent/AU2018428626A1/en
Priority to PCT/CN2018/092035 priority patent/WO2019241936A1/zh
Publication of WO2019241936A1 publication Critical patent/WO2019241936A1/zh
Priority to US17/117,905 priority patent/US20210136821A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer

Definitions

  • the present application relates to the field of communications, and more particularly, to a wireless communication method, a terminal device, and a network device.
  • LTE Long Term Evolution
  • LAA Licensed Assisted Access
  • the UE can perform wireless link monitoring (Radio Link) on the licensed frequency band. Monitoring, RLM).
  • the base station when performing RLM, can send a reference signal on the authorized frequency band, and the terminal device can detect the reference signal and judge the channel quality based on the detected reference signal.
  • NR New Radio
  • Embodiments of the present application provide a wireless method and device that can reasonably implement RLM in an unlicensed frequency band.
  • a wireless communication method including: a first network device performing a first listen-before-talk LBT operation on an unlicensed frequency band for sending a reference signal; and when the first LBT operation fails Next, the first network device sends indication information, and the indication information is used to indicate that the first network device does not send the reference signal through the unlicensed frequency band.
  • the network device may send indication information, which can prevent improper synchronization or out-of-sync operation.
  • the sending, by the first network device, the instruction information includes: the first network device performing a second LBT operation on the unlicensed frequency band; When the second LBT operation is successful, the second network device sends the instruction information to a terminal device through the unlicensed frequency band.
  • the sending, by the first network device, indication information includes: sending, by the first network device, an authorized frequency band to the Sending, by the terminal device, the indication information.
  • the sending, by the first network device, indication information includes: the first network device sends a second network device to the second network.
  • the device sends the instruction information, and the instruction information is used by the second network device to indicate to the terminal device through the authorized frequency band that the first network device does not send the reference signal through the unlicensed frequency band.
  • the first network device and the second network device use different radio access technology RATs;
  • the indication information is information marked with an abstract syntax mark and ASN.1 encoded by the first network device.
  • the method further includes: the first network device sends the following information to the second network device At least one of: timing information of the reference signal on the first network device side; a location of a time-frequency resource for sending the reference signal; a time window for sending the reference signal; a period for sending the reference signal; And the type of the reference signal.
  • the method further includes: the first network device sends statistical information to the second network device The statistical information is used to indicate the number of times that the reference signal has not been successfully transmitted in the unlicensed frequency band.
  • the method further includes: receiving, by the first network device, a notification sent by the second network device Message, the notification message is used to notify the network device of the service terminal device to be changed from the first network device to another network device, or to notify the primary cell PCell or the primary and secondary cell PSCell of the first network device to be changed.
  • the first network device is a secondary node SN
  • the second network device is a primary node MN.
  • the first network device performs a first listen-before-talk LBT operation on an unlicensed frequency band, including The first network device performs the first LBT operation on multiple frequency points in the unlicensed frequency band; the failure of the first LBT operation is that no available resources are monitored on the multiple frequency points.
  • the first network device performs a first listen-before-talk LBT operation on an unlicensed frequency band, including : The first network device executes the first LBT on the unlicensed frequency band within a time window; the failure of the first LBT operation is that no available resources are monitored within the time window.
  • the indication information is carried in radio resource control RRC signaling, physical layer signaling, or media access control MAC layer signaling.
  • the method is used in the scenario of running an SA network independently.
  • the method is used in a scenario where a non-independent operation of an NSA or a dual-connected DC network is performed.
  • a wireless communication method including: a second network device receiving first instruction information sent by a first network device, where the first instruction information is used to indicate that the first network device has not passed an unlicensed frequency band Sending a reference signal; the second network device sends second instruction information to the terminal device through an authorized frequency band, and the second instruction information is used to indicate that the first network device does not send the reference signal through an unlicensed frequency band.
  • the second network device receives the first indication information sent by the first network device, and the first indication information is used to indicate that the first network device does not send a reference signal through an unlicensed frequency band.
  • the second network device sends second instruction information to the terminal device through the authorized frequency band, and the second instruction information is used to indicate that the first network device does not send the reference signal through the unlicensed frequency band, so that the terminal device can avoid improper synchronization Or out-of-step operation, and sending the second instruction information through an authorized frequency band can ensure or send the second instruction information on time.
  • the first network device and the second network device use different radio access technology RATs;
  • the second instruction information includes the first In an instruction message, the first network device performs abstract syntax tagging of ASN.1 encoded information;
  • the second instruction information includes the first instruction information.
  • the method further includes that the second network device receives the following sent by the first network device: At least one kind of information: timing information of the reference signal on the first network device side; time-frequency resource location of sending the reference signal; period of sending the reference signal; time of sending the reference signal Window; and the type of the reference signal; the second network device sending second instruction information to the terminal device through the authorized frequency band includes: based on the at least one piece of information, the second network device sends the terminal device to the terminal device through the authorized frequency band Sending the second instruction information.
  • the method further includes: the second network device determines that the reference signal is not The number of times a network device successfully transmitted through the unlicensed band; based on the statistical information, the second network device changed the network device of the service terminal device from the first network device to another network device, or changed the PCell or PSCell of the first network device.
  • the second network device determines that the reference signal has not been passed by the first network device through the The number of times that the unlicensed frequency band is successfully sent includes: the second network device receives statistical information sent by the first network device, and the statistical information is used to indicate that the reference signal has not been passed by the first network device through the The number of times that an unlicensed frequency band was successfully transmitted; based on the statistical information, the second network device determines the number of times that the reference signal has not been successfully transmitted by the first network device through the unlicensed frequency band.
  • the number of times of sending includes: according to the number of times the first network device sends the first indication information to the second network device, the second network device determines that the reference signal has not been passed by the first network device The number of times that the unlicensed frequency band was successfully sent.
  • the first network device is a secondary node SN
  • the second network device is a primary node MN.
  • the method is used in a scenario where a non-independent operation of an NSA or a dual-connected DC network is performed.
  • a wireless communication method including: the second network device receives statistical information sent by the first network device, the statistical information is used to indicate that the reference signal is not authorized by the first network device through unauthorized The number of times the frequency band was successfully transmitted; based on the counted number of times, the network device of the service terminal device is changed from the first network device to another network device, or the primary cell PCell or the primary and secondary cell PSCell of the first network device is changed.
  • the second network device receives statistical information sent by the first network device, and the statistical information is used to indicate the number of times that the reference signal has not been successfully sent by the first network device through an unlicensed frequency band, so that Based on the statistics, changing the network device of the service terminal device from the first network device to another network device, or changing the primary cell PCell or the primary and secondary cell PSCell of the first network device can avoid the use of inappropriate network devices or PCell Or the problem of poor communication system caused by PSCell serving terminal equipment.
  • the method is used in a non-independent running NSA or dual-connected DC network scenario.
  • a wireless communication method including: a terminal device receives instruction information, the instruction information is used to indicate that a first network device does not send a reference signal in an unlicensed frequency band; and based on the instruction information, the terminal device Perform radio link monitoring RLM operation.
  • the terminal device receives the indication information that the network device did not send the reference signal due to the failure of the LBT operation on the unlicensed band, and can perform RLM based on the indication information, which can avoid improper synchronization or out of step operating.
  • the performing, by the terminal device, an RLM operation based on the instruction information includes: adjusting, based on the instruction information, the terminal device corresponding to the RLM operation. Step counter and / or synchronization counter.
  • the receiving, by the terminal device, the instruction information includes: receiving, by the terminal device, the first The indication information sent by a network device; or, the terminal receives the indication information sent by a second network device through an authorized frequency band.
  • the first network device is a secondary node SN
  • the second network device is a primary node MN.
  • a wireless communication method which includes: from a plurality of frequency points or cells, a network device determines a target frequency point or cell; and in the target frequency point or cell, sending a reference signal or system information.
  • the network device determines a frequency point and sends a reference signal at the determined frequency point, so that the terminal device performs an RLM operation, thereby avoiding monitoring at a specific frequency point.
  • the multiple frequency points or cells belong to frequency points or cells of an unlicensed frequency band.
  • the determining, by a network device from multiple frequency points or cells, a target frequency point or cell includes: The network device performs an LBT operation on the plurality of frequency points in order, and then uses the frequency point where the LBT operation is successfully performed as the target frequency point.
  • the method further includes: sending, by the network device, a notification message to a terminal device, where the notification message is used At the target frequency point or cell that is instructed to receive a reference signal or system information.
  • a wireless communication method including: at a plurality of frequency points, a terminal device determines a frequency point at which a radio link monitoring RLM operation is performed; at the determined frequency point, the terminal device performs an RLM operation, Wherein, the RLM operation at the multiple frequency points uses the same out-of-sync counter and / or the same synchronization counter, or, at a certain frequency point, the terminal device receives system information.
  • the terminal device determines the frequency point at which the radio link monitoring RLM operation is performed. At the determined frequency point, the terminal device performs the RLM operation, where the multiple frequency points The RLM operation at the point uses the same out-of-sync counter and / or the same synchronous counter. This can avoid the problem that the RLM cannot be performed due to the failure to send the reference signal due to the failure to monitor the resources at a specific frequency point, and the RLM operation at the multiple frequency points uses the same out-of-sync counter and / or the same synchronization counter. , Can avoid the problem of out-of-step caused by a certain frequency point; or, the terminal device receives the system parameter information at a certain frequency point, which can avoid the problem that the terminal device cannot obtain subsequent system information and cannot communicate.
  • the multiple frequency points or cells belong to frequency points or cells of an unlicensed frequency band.
  • the method further includes: receiving, by the terminal device, a notification message sent by a network device, the notification message It is used to indicate the frequency point at which the reference signal is sent.
  • the terminal device determines the frequency point at which the RLM operation is performed, including: the terminal device determines the frequency point indicated by the notification message as the execution point. Frequency of RLM operation.
  • the terminal device performs the RLM operation at a determined frequency point, including: within a time window, the The terminal device performs RLM operations.
  • the performing a RLM operation by the terminal device within a time window includes: within the time window At the end, if no reference signal is received, the terminal device increments the out-of-step counter by one.
  • a wireless communication method including: the terminal device determines a time window; and within the time window, the terminal device performs a radio link monitoring RLM operation in an unlicensed frequency band.
  • the terminal device performs the radio link monitoring RLM operation in the unlicensed frequency band within the time window, which can increase the probability of receiving the reference signal, and can avoid the out-of-sync caused by the inability to perform RLM. problem.
  • the performing, by the terminal device, an RLM operation in an unlicensed frequency band within a time window includes:
  • the terminal device increments the out-of-sync counter by one.
  • a communication device for performing the method in any one of the foregoing aspects or implementations thereof.
  • the communication device includes a functional module for performing a method in any one of the foregoing aspects or implementations thereof.
  • a communication device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, and execute the method in any one of the foregoing aspects or implementations thereof.
  • a chip is provided for implementing any one of the foregoing aspects or a method in each implementation manner thereof.
  • the chip includes a processor for invoking and running a computer program from a memory, so that a device installed with the chip executes a method as in any one of the above aspects or implementations thereof.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute a method in any one of the foregoing aspects or implementations thereof.
  • a computer program product including computer program instructions that cause a computer to execute a method in any one of the foregoing aspects or implementations thereof.
  • a computer program that, when run on a computer, causes the computer to execute the method in any one of the above aspects or its implementations.
  • FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 11 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 15 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 16 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 17 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 18 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 19 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 20 is a schematic block diagram of a chip according to an embodiment of the present application.
  • FIG. 21 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • GSM Global System
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or a communication terminal or a terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located within the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device may be a mobile switching center, relay station, access point, vehicle equipment, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in public land mobile networks (PLMN) that will evolve in the future.
  • PLMN public land mobile networks
  • the communication system 100 further includes at least one terminal device 120 located within a coverage area of the network device 110.
  • terminal equipment used herein includes, but is not limited to, connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection ; And / or another data connection / network; and / or via a wireless interface, such as for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and / or another terminal device configured to receive / transmit communication signals; and / or Internet of Things (IoT) devices.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN Wireless Local Area Networks
  • DVB-H Digital Video Broadband
  • satellite networks satellite networks
  • AM- FM broadcast transmitter AM- FM broadcast transmitter
  • IoT Internet of Things
  • a terminal device configured to communicate through a wireless interface may be referred to as a “wireless communication terminal”, a “wireless terminal”, or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular phones; personal communications systems (PCS) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communications capabilities; can include radiotelephones, pagers, Internet / internal PDA with network access, Web browser, notepad, calendar, and / or Global Positioning System (GPS) receiver; and conventional laptop and / or palm-type receivers or others including radiotelephone transceivers Electronic device.
  • PCS personal communications systems
  • GPS Global Positioning System
  • a terminal device can refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Processing Assistant (PDA), and wireless communication.
  • the terminal devices 120 may perform terminal direct connection (Device to Device, D2D) communication.
  • D2D Terminal to Device
  • the 5G system or the 5G network may also be referred to as a New Radio (New Radio) system or an NR network.
  • New Radio New Radio
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like in this embodiment of the present application is not limited thereto.
  • network entities such as a network controller, a mobility management entity, and the like in this embodiment of the present application is not limited thereto.
  • the device having a communication function in the network / system in the embodiments of the present application may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be specific devices described above, and will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobile management entity, and the like, which is not limited in the embodiments of the present application.
  • the new air interface unlicensed frequency band (NR-unlicensed, NR-U) technology can be used in stand-alone (SA), non-stand-alone (NSA), and dual-connectivity (DC) network scenarios.
  • SA stand-alone
  • NSA non-stand-alone
  • DC dual-connectivity
  • an NR secondary base station capable of supporting the Primary Cell (PCell) function may not be configured.
  • a network device for example, a base station or a network node
  • the network device can use the licensed frequency band and the unlicensed frequency band to serve the terminal equipment.
  • an NR secondary base station for example, a Secondary Node (SN)
  • SN Secondary Node
  • PCell Primary Cell
  • MN Master Node
  • MN can support licensed frequency bands
  • SN can support unlicensed frequency bands.
  • multiple network devices or nodes can be configured to communicate with the terminal.
  • the multiple network devices can include MN and SN, where MN can support authorized frequency bands and SN can support unlicensed frequency bands.
  • channel quality monitoring may be performed on the unlicensed frequency bands, for example, RLM.
  • the PCell in the unlicensed frequency band needs to perform the RLM function.
  • the RLM function can be performed on the Primary Cell and the Secondary Cell (PSCell) on the SN of the unlicensed frequency band.
  • the RLM function can be performed on the PSCell on the SN of the unlicensed frequency band.
  • the technical challenge of performing channel quality monitoring on unlicensed frequency bands is that the downstream LBT operation on the network side may fail, that is, the channel cannot be obtained.
  • the network device cannot send a reference signal (for example, a Synchronous Signal Block (SSB) or a channel state information reference signal (Channel-State Information Reference Signal, CSI-RS) on a fixed time-frequency resource.
  • SSB Synchronous Signal Block
  • CSI-RS Channel state information reference signal
  • the network device The measurement value of the terminal will be very low if it is not transmitted. At this time, the terminal cannot distinguish whether the measurement value of the reference signal is too low due to power and path loss, or the network device is not transmitting, so the RLM operation cannot be performed. Therefore, this application
  • the embodiments provide the following solutions to solve this problem.
  • FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
  • the method 200 includes at least part of the following content.
  • the method may be used in SA, NSA, and DC network scenarios.
  • the first network device mentioned below may be an SN
  • the second network device may be an MN
  • the first network device performs a first Listen Before Talk (LBT) operation on an unlicensed frequency band for sending a reference signal.
  • LBT Listen Before Talk
  • the first network device may listen on the unlicensed frequency band after sending the reference signal in the unlicensed frequency band, and may send the reference signal when it is monitored that a channel or resource is available.
  • the LBT operation when no available channel or resource is detected, the LBT operation is considered successful, and when an available channel or resource is detected, the LBT operation may be considered successful.
  • the first network device executes the first LBT within the time window on the unlicensed frequency band; the first LBT operation fails because no monitoring is performed within the time window Available resources.
  • channel monitoring can be performed within a time window. If no available resources are detected in the window, the first LTB may be considered to have failed. Thus, performing LBT within a time window can increase the probability of detecting available resources.
  • the reference signal may include SSB and / or CSI-RS
  • the terminal device may perform, for example, RLM based on the reference signal to determine the channel quality of the downlink channel.
  • the network device can configure parameters for RLM, including parameters such as Qin, Qout, N310, N311, through radio resource control (RRC) signaling.
  • RRC radio resource control
  • the physical layer of the terminal device may report an in-sync (IS) indication to the upper layer; otherwise, if the signal quality measured by the terminal device is lower than the out-of-sync threshold Qout
  • the physical layer of the terminal device reports an out-of-sync (OOS) indication to the upper layer.
  • OOS out-of-sync
  • the upper layer of the terminal device receives consecutive N310 OOS indications from the physical layer (here it is assumed that other timers such as timer T311 are not running, the embodiment of this application only considers RLM under the timer T310 mechanism), then start timer T310 .
  • the upper layer of the terminal device receives consecutive N311 IS indications from the physical layer and the timer T310 is running (that is, the timer T310 has not timed out)
  • the operation of the timer T310 is stopped.
  • the terminal device considers the link connection failure (Radio Link Failure) (RLF).
  • RLF Radio Link Failure
  • the unlicensed frequency band may include multiple frequency points.
  • the following two implementation manners can be adopted.
  • the first network device performs the first LBT operation on multiple frequency points in the unlicensed frequency band; the failure of the first LBT operation is that no available resources are monitored on the multiple frequency points,
  • the out-of-step counters corresponding to RLM are the same and / the synchronization counters are the same.
  • the RLM operations of the multiple frequency bands are performed independently, and the out-of-sync counter and / or synchronization counter corresponding to the RLM are independent.
  • the first network device may instruct the PCell or PSCell on the unlicensed frequency band to instruct the LBT to send the reference signal on the PCell or PSCell on the unlicensed frequency band.
  • the first network device in a case where the first LBT operation fails, the first network device sends instruction information, and the instruction information is used to indicate that the first network device does not send the reference signal through the unlicensed frequency band.
  • the first network device may abandon sending the reference signal, or may delay sending the reference signal within a specific time window.
  • the first network device mentioned in the embodiment of the present application that fails to send the reference signal through the unlicensed frequency band or abandons sending the reference signal through the unlicensed frequency band may refer to abandoning transmission when a certain LBT operation fails The reference signal that needs to be sent this time, if the LBT operation is performed successfully at other times (other secondary reference signal sending nodes),
  • the first network device when it quits sending the reference signal, it may send indication information to the network device, where the indication information is used to indicate that the first network device does not send the reference signal through the unlicensed frequency band, where the indication
  • the information may optionally indicate which reference signal to send is abandoned (for example, it may be indicated by occupied time domain resources, etc.).
  • the next reference signal transmission time is after the instruction information transmission time.
  • the first network device performs a second LBT operation on the unlicensed frequency band; if the second LBT operation is successful, the second network device sends the second LBT operation to the terminal device through the unlicensed frequency band. Instructions.
  • the first network device may perform LBT operation in an unlicensed frequency band when the first network device abandons sending the reference signal (specifically, it may send a certain reference signal or a certain period of reference signal), and if the LBT operation is successful, the first network device
  • the second network device sends the instruction information to the terminal device through the unlicensed frequency band, and the instruction information indicates that one or some reference signals are not sent through the unlicensed frequency band.
  • this implementation can be used in SA, NSA, and DC scenarios.
  • sending the indication information through the unlicensed frequency band through the first network device means that after the first network device fails to send the reference signal, it can continue to send signaling to the UE through the LBT operation.
  • the advantage of this method is that it does not Increase the load on the second network device.
  • the first network device may send the instruction information to the terminal device through a radio resource control (Radio Resource Control (RRC)) signaling connection with the terminal device, that is, the first network
  • RRC Radio Resource Control
  • the device may use RRC signaling to send the indication information to the terminal device.
  • the indication information may also be sent through other messages, such as a broadcast message, physical layer signaling, or Media Access Control (MAC) layer signaling.
  • MAC Media Access Control
  • the first network device sends the instruction information to the terminal device through an authorized frequency band.
  • the first network device abandons sending the reference signal (specifically, it may send a reference signal or a certain period of reference signal), if the first network device can communicate with the terminal device through an authorized frequency band, the first network device The device may send the instruction information to the terminal device through the authorized frequency band.
  • the implementation method can be used in, but not limited to, NSA, SA, and DC network scenarios.
  • This implementation manner can guarantee or send the instruction information on time.
  • the first network device may send the instruction information to the terminal device through a radio resource control (Radio Resource Control (RRC)) signaling connection with the terminal device, that is, the first network
  • RRC Radio Resource Control
  • the device may use RRC signaling to send the indication information to the terminal device.
  • the indication information may also be sent through other messages, such as a broadcast message, physical layer signaling, or Media Access Control (MAC) layer signaling.
  • MAC Media Access Control
  • the first network device sends the indication information to a second network device.
  • the first network device may pass the Xn / The X2 interface sends the instruction information to the second network device, so that the second network device can indicate to the terminal device through the authorized frequency band that the first network device does not send the reference signal through the unlicensed frequency band.
  • the instruction information can be guaranteed or sent on time.
  • the second network device may optionally send the instruction information to the terminal device through the PCell.
  • the second network device may send the instruction information to the terminal device through a radio resource control (Radio Resource Control (RRC)) signaling connection with the terminal device, that is, the second network
  • RRC Radio Resource Control
  • the device may use RRC signaling to send the indication information to the terminal device.
  • the indication information may also be sent through other messages, such as a broadcast message, physical layer signaling, or Media Access Control (MAC) layer signaling.
  • MAC Media Access Control
  • the second network device may not indicate to the terminal device that the first network device does not send the reference signal through the unlicensed frequency band to the terminal device through the authorized frequency band, but may determine based on the quantity of the received instruction information.
  • the situation between the first network device and the terminal device determines whether to change the network device serving the terminal device from the first network device to another network device, or to change the PSCell or PCell of the first network device.
  • the first network device may optionally perform an LBT operation on the PCell or PSCell on the unlicensed frequency band, so as to send the reference signal on the PCell or PSCell on the unlicensed frequency band.
  • the first network device and the second network device use different radio access technology RATs;
  • the indication information is an abstract syntax mark-ASN.1 encoding performed by the first network device Information.
  • the first network device and the second network device may use the same radio access technology (Radio Access Technology, RAT) or different RATs (for example, the first network device is an NR access network device, and the second network device is LTE access network equipment).
  • RAT Radio Access Technology
  • the first network device may ASN.1 encode the instruction information according to the first network device RAT, and pass the encoded instruction information to the second network device, and the second network device receives the instruction After the information, the ASN.1 encoding is no longer transmitted to the terminal device.
  • the first network device may send information to the second network device along with the instruction information to instruct the second network device to send the instruction information to the terminal. device.
  • the first network device sends at least one of the following information to the second network device:
  • the type of the reference signal is the type of the reference signal.
  • the first network device and the second network device may be synchronous or asynchronous.
  • the timing of the second network device and the first network device are the same (for example, in a NAS or DC scenario, the timing of the PCell on the second network device and the PSCell on the first network device is The same), and when the first network device and the second network device are asynchronous, the timing information of the first network device and the second network device are different.
  • the signaling notified to the terminal device can indicate the type of reference signal that the second network device failed to send.
  • the specific parameters can be different because of the synchronization and asynchronous parameters: the timing of the reference signal on the first network device side.
  • Information or the location of a time-frequency resource of a reference signal, or the type of a reference signal such as a period or a transmission time window, so this information can be sent to a second network device, and the second network device can thereby send indication information to the terminal device.
  • the terminal device when the terminal device receives the instruction information sent by the first network device or the second network device, it may be determined that the reference signal is transmitted without adding one to the out-of-step counter, so If the counting operation of the out-of-step counter and / or the synchronization counter has been performed, the counting of the out-of-step counter and / or the synchronization counter can be adjusted, for example, the out-of-step counter that has been incremented by one can be decremented to avoid inappropriate In-sync or out-of-sync operation.
  • the first network device sends statistical information to the second network device, and the statistical information is used to indicate the number of times that the reference signal has not been successfully transmitted in the unlicensed frequency band.
  • the second network device can determine the situation between the first network device and the terminal device based on the received statistical information to decide whether to change the network device serving the terminal device from the first network device to another network device. Or change the PCell or PSCell of the first network device.
  • the first network device may optionally perform an LBT operation on the PCell or PSCell on the unlicensed frequency band, so as to send the reference signal on the PCell or PSCell on the unlicensed frequency band.
  • the second network device sends a notification message to the first network device, whereby the first network device receives a notification message sent by the second network device, and the notification message is used to notify the service terminal device
  • the first network device is changed from the first network device to another network device, or is used to notify the primary cell PCell or the primary and secondary cell PSCell of the first network device to be changed.
  • the network device may send indication information, which can prevent improper synchronization or out-of-sync operation.
  • FIG. 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application. As shown in FIG. 3, the wireless communication method 300 includes at least a part of the following content.
  • the method may be used in NSA and DC network scenarios.
  • the first network device mentioned below may be an SN
  • the second network device may be an MN
  • the second network device receives first indication information sent by the first network device, where the first indication information is used to indicate that the first network device has not sent a reference signal through an unlicensed frequency band.
  • the second network device sends second instruction information to the terminal device through the authorized frequency band, and the second instruction information is used to indicate that the first network device does not send the reference signal through the unlicensed frequency band.
  • the first network device and the second network device use different radio access technology RATs;
  • the second instruction information includes the first instruction information performed by the first network device
  • the abstract syntax marks an ASN.1 encoded information;
  • the second indication information includes the first indication information.
  • the second network device receives at least one of the following information sent by the first network device:
  • the second network device Based on the at least one piece of information, the second network device sends the second instruction information to the terminal device through an authorized frequency band.
  • the network device of the device is changed from the first network device to another network device, or the PCell or PSCell of the first network device is changed.
  • the second network device receives statistical information sent by the first network device, and the statistical information is used to indicate the number of times that the reference signal has not been successfully transmitted by the first network device through the unlicensed frequency band; based on According to the statistical information, the number of times that the second network device determines that the reference signal has not been successfully transmitted by the first network device through the unlicensed frequency band.
  • the second network device determines that the reference signal has not been passed by the first network device through the unlicensed frequency band. Number of successful transmissions.
  • the method 300 may be applicable to a series of reference signals that cannot be sent to the PSCell on the SN. In this case, it is difficult for the terminal device to continue to perform the RLM function. Therefore, a change of the PSCell or even a change of the SN may be triggered.
  • the first indication information in the method 300 may correspond to the indication information in the method 200.
  • the description in the method 200 may be applicable to the method 300.
  • the description of the function of the second network device in the method 200 or the definition or explanation of some terms may be used as an optional implementation of the method 300. For simplicity, I will not repeat them here.
  • the second network device receives the first indication information sent by the first network device, and the first indication information is used to indicate that the first network device does not send a reference signal through an unlicensed frequency band.
  • the second network device sends second instruction information to the terminal device through the authorized frequency band, and the second instruction information is used to indicate that the first network device does not send the reference signal through the unlicensed frequency band, so that the terminal device can avoid improper synchronization Or out-of-step operation, and sending the second instruction information through an authorized frequency band can ensure or send the second instruction information on time.
  • FIG. 4 is a schematic flowchart of a wireless communication method 400 according to an embodiment of the present application.
  • the method 400 includes at least part of the following.
  • the method may be used in NSA and DC network scenarios.
  • the first network device mentioned below may be an SN
  • the second network device may be an MN
  • the second network device receives statistical information sent by the first network device, where the statistical information is used to indicate the number of times that the reference signal has not been successfully transmitted by the first network device through an unlicensed frequency band.
  • the network device of the service terminal device is changed from the first network device to another network device, or the primary cell PCell or the primary and secondary cell PSCell of the first network device is changed.
  • the method 400 may be applicable to a series of reference signals that cannot be sent to the PSCell on the SN. In this case, it is difficult for the terminal device to continue to perform the RLM function. Therefore, a change of the PSCell or even a change of the SN may be triggered.
  • the second network device may also determine the number of times that the reference signal has not been successfully sent by the first network device through an unlicensed frequency band in other ways.
  • the description in the method 200 may be applicable to the method 400.
  • the description of the function of the second network device in the method 400 or the definition or explanation of some terms may be used as an optional implementation of the method 400. For simplicity, I will not repeat them here.
  • the second network device receives statistical information sent by the first network device, and the statistical information is used to indicate the number of times that the reference signal has not been successfully sent by the first network device through an unlicensed frequency band, so that Based on the statistics, changing the network device of the service terminal device from the first network device to another network device, or changing the primary cell PCell or the primary and secondary cell PSCell of the first network device can avoid the use of inappropriate network devices or PCell Or the problem of poor communication system caused by PSCell serving terminal equipment.
  • FIG. 5 is a schematic flowchart of a wireless communication method 500 according to an embodiment of the present application.
  • the method 500 includes at least part of the following.
  • the method may be used in SA, NSA, and DC network scenarios.
  • the first network device mentioned below may be an SN
  • the second network device may be an MN
  • the terminal device receives indication information, which is used to indicate that the first network device does not send a reference signal in an unlicensed frequency band.
  • the terminal device performs a radio link monitoring RLM operation.
  • the terminal device based on the indication information, the terminal device adjusts the out-of-sync counter and / or the synchronization counter corresponding to the RLM operation.
  • the terminal device receives the indication information sent by the first network device through an unlicensed frequency band; or,
  • the terminal receives the indication information sent by the second network device through an authorized frequency band.
  • the signaling for notifying the terminal device that a reference signal is missing may be RRC signaling or other signaling (such as MAC layer signaling, physical layer signaling, etc.).
  • the description in the method 200 may be applicable to the method 500.
  • the description of the function of the terminal device in the method 500 or the definition or explanation of some terms may be used as an optional implementation of the method 500. No longer.
  • the terminal device receives the indication information that the network device did not send the reference signal due to the failure of the LBT operation on the unlicensed band, and can perform RLM based on the indication information, which can avoid improper synchronization or out of step operating.
  • FIG. 6 is a schematic flowchart of a wireless communication method 600 according to an embodiment of the present application.
  • the method 600 includes at least part of the following.
  • the terminal device determines a time window.
  • the terminal device performs a radio link monitoring RLM operation in an unlicensed frequency band.
  • the terminal device increments the out-of-sync counter by one.
  • the reference signal when the first network device performs LBT on an unlicensed frequency band to send a reference signal, the reference signal may be sent within a specific time window. If the reference signal is exceeded after the time window is exceeded, the first network device notifies the second network device of the indication information, and the second network device takes measures to change the PSCell or SN, or notify the UE. At this time, the first network device may notify the second network device of the time window information.
  • the terminal can determine that a certain reference signal has not been received after detecting the reference signal after detecting the entire time window.
  • the terminal device performs the radio link monitoring RLM operation in the unlicensed frequency band within the time window, which can increase the probability of receiving the reference signal, and can avoid the out-of-sync caused by the inability to perform RLM. problem.
  • FIG. 7 is a schematic flowchart of a wireless communication method 700 according to an embodiment of the present application.
  • the method 700 includes at least part of the following.
  • the method 700 may be used in a network scenario of an SA, an NSA, or a DC.
  • the network device mentioned below may be an SN in an NSA or DC network scenario.
  • the network device determines a target frequency point or cell.
  • the multiple frequency points or cells belong to frequency points or cells in unlicensed frequency bands.
  • the network device performs an LBT operation at the multiple frequency points in order; the frequency point at which the LBT operation is successfully performed is used as the target frequency point.
  • the network device may perform an LBT operation at the multiple frequency points in a certain order, and if an available resource is detected in a certain frequency band, the LBT operation may not be performed at other frequency points.
  • a reference signal or system information is transmitted in the target frequency point or cell.
  • the network device sends a notification message to the terminal device, where the notification message is used to indicate the target frequency point or cell for receiving a reference signal or system information.
  • the notification message may be sent through a target frequency point or cell, or may be sent to the notification message through another frequency point or cell.
  • the base station may send the reference signals through other frequency points, and inform the terminal device on which frequency points there is a reference through signaling. signal. If the terminal equipment detects the reference signal at other frequencies, it can continue to perform the RLM function. After a reference signal is sent at another frequency and received by the UE, the secondary cell (Seondary Cell, Scell) corresponding to the other frequency can be changed to a PCell or PSCell, of course, it may not be changed.
  • Scell Secondary Cell
  • the network device determines a frequency point and sends a reference signal at the determined frequency point, so that the terminal device performs an RLM operation, thereby avoiding monitoring at a specific frequency point.
  • FIG. 8 is a schematic flowchart of a wireless communication method 800 according to an embodiment of the present application.
  • the method 800 includes at least part of the following.
  • the terminal device determines the frequency points at which the radio link monitoring RLM operation is performed.
  • the terminal device performs an RLM operation at a determined frequency point, wherein the RLM operation at the multiple frequency points uses the same out-of-sync counter and / or the same synchronization counter; or, at the determined frequency point
  • the terminal device receives the reference signal.
  • the multiple frequency points or cells belong to frequency points or cells in unlicensed frequency bands.
  • the terminal device receives a notification message sent by a network device, where the notification message is used to indicate a frequency point at which a reference signal is sent; the terminal device determines the frequency point indicated by the notification message as the frequency point Frequency of performing RLM operations.
  • the terminal device performs an RLM operation within a time window.
  • the terminal device increments the out-of-sync counter by one.
  • the terminal device increments the synchronization counter by one.
  • the terminal device determines the frequency point at which the radio link monitoring RLM operation is performed. At the determined frequency point, the terminal device performs the RLM operation, where the multiple frequency points The RLM operation at the point uses the same out-of-sync counter and / or the same synchronous counter. This can avoid the problem that the RLM cannot be performed due to the failure to send the reference signal due to the failure to monitor the resources at a specific frequency point, and the RLM operation at the multiple frequency points uses the same out-of-sync counter and / or the same synchronization counter. , Can avoid the problem of out-of-step caused by a certain frequency point; or, the terminal device receives the system parameter information at a certain frequency point, which can avoid the problem that the terminal device cannot obtain subsequent system information and cannot communicate.
  • FIG. 9 is a schematic flowchart of a wireless communication method 900 according to an embodiment of the present application.
  • the method 900 includes at least part of the following.
  • the SN performs an LBT operation, and when the LBT operation fails, it abandons sending the reference signal.
  • the SN notifies the MN that a certain reference signal has aborted transmission due to LBT failure.
  • the MN based on the SN notification, notifies the UE that a reference signal has not been transmitted in the unlicensed band due to LBT failure.
  • the UE changes the counting result of the out-of-sync counter Qout, that is, gives up and increments by one.
  • FIG. 10 is a schematic flowchart of a wireless communication method 1000 according to an embodiment of the present application.
  • the method 1000 includes at least a part of the following content.
  • the SN performs an LBT operation, and when the LBT operation fails, it abandons sending the reference signal.
  • the SN notifies the MN that a series of reference signals have failed due to LBT, and they abandon the transmission to the UE on the unlicensed band.
  • the MN decides whether to change the SN or change the PSCell on the SN according to the notification of the SN.
  • FIG. 11 is a schematic flowchart of a wireless communication method 1100 according to an embodiment of the present application.
  • the method 1100 includes at least a part of the following content.
  • the MN / SN performs an LBT operation, and when the LBT operation fails, it abandons the sending of the reference signal.
  • the MN / SN sends a reference signal at other frequency points and informs the UE of the frequency point information.
  • the SCell may be changed to a PCell or PSCell.
  • FIG. 12 is a schematic block diagram of a network device 1200 according to an embodiment of the present application.
  • the network device 1200 includes a processing unit 1210 and a communication unit 1220. Among them,
  • the processing unit 1210 is configured to: perform a first-listen-before-talk LBT operation on an unlicensed frequency band for sending a reference signal;
  • the communication unit 1220 is configured to: if the first LBT operation fails, send instruction information, and the instruction information is used to indicate that the network device does not send the reference signal through the unlicensed frequency band.
  • processing unit 1210 is further configured to:
  • the communication unit 1220 is further configured to: when the second LBT operation is successful, the second network device sends the instruction information to the terminal device through the unlicensed frequency band.
  • the communication unit 1220 is further configured to:
  • the communication unit 1220 is further configured to:
  • the network device and the second network device use different radio access technology RATs; the indication information is information marked by the network device with an abstract syntax tag and ASN.1 encoding.
  • the communication unit 1220 is further configured to:
  • the type of the reference signal is the type of the reference signal.
  • the communication unit 1220 is further configured to:
  • the communication unit 1220 is further configured to:
  • the notification message is used to notify the network device of the service terminal device to be changed from the network device to another network device, or to notify the primary cell PCell or the primary and secondary cell of the changed network device PSCell.
  • the network device is a secondary node SN, and the second network device is a primary node MN.
  • processing unit 1210 is further configured to:
  • the failure of the first LBT operation is that no available resources are detected at the multiple frequency points.
  • processing unit 1210 is further configured to:
  • the failure of the first LBT operation is that no available resources are detected within the time window.
  • the indication information is carried in radio resource control RRC signaling, physical layer signaling, or MAC layer signaling.
  • the device is used in an SA network scenario.
  • the device is used in a non-standalone running NSA or dual-connected DC network scenario.
  • the network device 1200 may implement corresponding operations implemented by the first network device in the foregoing method. For brevity, details are not described herein again.
  • FIG. 13 is a schematic block diagram of a network device 1300 according to an embodiment of the present application.
  • the network device 1300 includes a receiving unit 1310 and a sending unit 1320. Among them,
  • the receiving unit 1310 is configured to receive first instruction information sent by a first network device, where the first instruction information is used to indicate that the first network device does not send a reference signal through an unlicensed frequency band;
  • the sending unit 1320 is configured to send second instruction information to the terminal device through an authorized frequency band, where the second instruction information is used to indicate that the first network device does not send the reference signal through an unlicensed frequency band.
  • the first network device and the network device use different radio access technology RATs;
  • the second instruction information includes the first instruction information that is abstractly marked by the first network device with an ASN.1 encoding information;
  • the second instruction information includes the first instruction information.
  • the receiving unit 1310 is further configured to:
  • the sending unit 1320 is further configured to:
  • the network device 1300 further includes a processing unit 1330 for:
  • the network device of the service terminal device is changed from the first network device to another network device, or the PCell or PSCell of the first network device is changed.
  • the receiving unit 1310 is further configured to:
  • the processing unit 1330 is further configured to determine, based on the statistical information, the number of times that the reference signal has not been successfully transmitted by the first network device through the unlicensed frequency band.
  • processing unit 1330 is further configured to:
  • the first network device is a secondary node SN, and the network device is a primary node MN.
  • the device is used in a non-standalone running NSA or dual-connected DC network scenario.
  • the network device 1300 may implement the corresponding operations implemented by the second network device in the foregoing method. For brevity, details are not described herein again.
  • FIG. 14 is a schematic block diagram of a network device 1400 according to an embodiment of the present application.
  • the network device 1400 includes a communication unit 1410 and a processing unit 1420. Among them,
  • the communication unit 1410 is configured to receive statistical information sent by the first network device, where the statistical information is used to indicate the number of times that the reference signal has not been successfully sent by the first network device through an unlicensed frequency band;
  • the processing unit 1420 is configured to change the network device of the service terminal device from the first network device to another network device or change the primary cell PCell or the primary and secondary cell PSCell of the first network device based on the statistical times.
  • the device is used in a non-standalone running NSA or dual-connected DC network scenario.
  • network device 1400 may implement corresponding operations implemented by the network device in the foregoing method. For brevity, details are not described herein again.
  • FIG. 15 is a schematic block diagram of a terminal device 1500 according to an embodiment of the present application.
  • the terminal device 1500 includes a communication unit 1510 and a processing unit 1520. Among them,
  • the communication unit 1510 is configured to: receive instruction information, where the instruction information is used to indicate that the first network device does not send a reference signal in an unlicensed frequency band;
  • the processing unit 1520 is configured to perform a radio link monitoring RLM operation based on the instruction information.
  • processing unit 1520 is further configured to:
  • the out-of-sync counter and / or synchronization counter corresponding to the RLM operation is adjusted.
  • the communication unit 1510 is further configured to:
  • the first network device is a secondary node SN
  • the second network device is a primary node MN.
  • terminal device 1500 may implement the corresponding operations implemented by the terminal device in the foregoing method. For brevity, details are not described herein again.
  • FIG. 16 is a schematic block diagram of a network device 1600 according to an embodiment of the present application.
  • the network device 1600 includes a processing unit 1610 and a communication unit 1620;
  • the processing unit 1610 is configured to: from a plurality of frequency points or cells, the network device determines a target frequency point or cell;
  • the communication unit 1620 is configured to send a reference signal or system information in the target frequency point or cell.
  • the multiple frequency points or cells belong to frequency points or cells of an unlicensed frequency band.
  • processing unit 1610 is further configured to:
  • the network device performs LBT operation at the multiple frequency points in turn;
  • the frequency at which the LBT operation is successfully performed is used as the target frequency.
  • the communication unit 1620 is further configured to:
  • network device 1600 may implement corresponding operations implemented by the network device in the foregoing method. For brevity, details are not described herein again.
  • FIG. 17 is a schematic block diagram of a terminal device 1700 according to an embodiment of the present application.
  • the terminal device 1700 includes a processing unit 1710 and / or a communication unit 1720;
  • the processing unit 1710 is configured to determine, at multiple frequency points, a frequency point at which a radio link monitoring RLM operation is performed;
  • the processing unit 1710 is further configured to perform an RLM operation at a determined frequency point, wherein the RLM operation at the multiple frequency points uses a same out-of-sync counter and / or a same synchronization counter, or the communication unit 1720 is : Receive system information at a certain frequency.
  • the multiple frequency points or cells belong to frequency points or cells of an unlicensed frequency band.
  • the communication unit 1720 is further configured to:
  • the processing unit 1710 is further configured to:
  • the frequency point indicated by the notification message is determined as the frequency point at which the RLM operation is performed.
  • processing unit 1710 is further configured to:
  • processing unit 1710 is further configured to:
  • the out-of-step counter is incremented by one.
  • terminal device 1700 may implement corresponding operations implemented by the terminal device in the foregoing method, and for the sake of brevity, details are not described herein again.
  • FIG. 18 is a schematic block diagram of a terminal device 1800 according to an embodiment of the present application.
  • the terminal device 1800 includes a processing unit 1810 for:
  • a radio link monitoring RLM operation is performed in an unlicensed band.
  • processing unit 1810 is further configured to:
  • the out-of-sync counter is incremented by one.
  • terminal device 1800 may implement the corresponding operations implemented by the terminal device in the foregoing method. For brevity, details are not described herein again.
  • FIG. 19 is a schematic structural diagram of a communication device 1900 according to an embodiment of the present application.
  • the communication device 1900 shown in FIG. 19 includes a processor 1910, and the processor 1910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 1920.
  • the processor 1910 may call and run a computer program from the memory 1920 to implement the method in the embodiment of the present application.
  • the memory 1920 may be a separate device independent of the processor 1910, or may be integrated in the processor 1910.
  • the communication device 1900 may further include a transceiver 1930, and the processor 1910 may control the transceiver 1930 to communicate with other devices. Specifically, it may send information or data to other devices or receive Information or data sent by the device.
  • the transceiver 1930 may include a transmitter and a receiver.
  • the transceiver 1930 may further include antennas, and the number of antennas may be one or more.
  • the communication device 1900 may specifically be a network device according to an embodiment of the present application, and the communication device 1900 may implement a corresponding process implemented by a network device in each method of the embodiments of the present application. .
  • the communication device 1900 may specifically be a mobile terminal / terminal device in the embodiment of the present application, and the communication device 1900 may implement the corresponding process implemented by the mobile terminal / terminal device in each method in the embodiments of the present application. , Will not repeat them here.
  • FIG. 20 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 2000 shown in FIG. 20 includes a processor 2010, and the processor 2010 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the chip 2000 may further include a memory 2020.
  • the processor 2010 may call and run a computer program from the memory 2020 to implement the method in the embodiment of the present application.
  • the memory 2020 may be a separate device independent of the processor 2010, or may be integrated in the processor 710.
  • the chip 2000 may further include an input interface 2030.
  • the processor 2010 can control the input interface 2030 to communicate with other devices or chips. Specifically, the processor 2010 can obtain information or data sent by other devices or chips.
  • the chip 2000 may further include an output interface 2040.
  • the processor 2010 may control the output interface 2040 to communicate with other devices or chips. Specifically, the processor 2010 may output information or data to other devices or chips.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal / terminal device in each method of the embodiment of the present application. For simplicity, here No longer.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-level chip, a system chip, a chip system or a system-on-chip.
  • FIG. 21 is a schematic block diagram of a communication system 2100 according to an embodiment of the present application. As shown in FIG. 9, the communication system 2100 includes a terminal device 2110 and a network device 2120.
  • the terminal device 910 may be used to implement the corresponding function implemented by the terminal device in the foregoing method
  • the network device 2120 may be used to implement the corresponding function implemented by the network device in the foregoing method.
  • details are not described herein again. .
  • the processor in the embodiment of the present application may be an integrated circuit chip and has a signal processing capability.
  • each step of the foregoing method embodiment may be completed by using an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA), or other Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • Various methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor.
  • a software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchronous DRAM Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM Enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory Synchrobus RAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (SDRAM), double data rate Synchronous dynamic random access memory (Double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM), direct memory bus random access memory (Direct RAMbus RAM, DR RAM) and so on. That is, the memories in the embodiments of the present application are intended to include, but not limited to, these and any other suitable types of memories.
  • An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal / terminal device in each method in the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the mobile terminal / terminal device in each method in the embodiment of the present application.
  • An embodiment of the present application further provides a computer program product, including computer program instructions.
  • the computer program product can be applied to a network device in the embodiment of the present application, and the computer program instruction causes a computer to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. More details.
  • the computer program product may be applied to a mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions cause a computer to execute a corresponding process implemented by the mobile terminal / terminal device in each method of the embodiments of the present application, For brevity, I will not repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program may be applied to a network device in the embodiment of the present application.
  • the computer program When the computer program is run on a computer, the computer is caused to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. , Will not repeat them here.
  • the computer program can be applied to a mobile terminal / terminal device in the embodiment of the present application, and when the computer program is run on a computer, the computer executes each method in the embodiment of the application by the mobile terminal / terminal device.
  • the corresponding processes are not repeated here for brevity.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the foregoing storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory) ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes .

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Abstract

本申请实施例提供一种无线方法和设备，可以合理实现非授权频段进行RLM。该方法包括：第一网络设备在非授权频段上执行第一先听后说LBT操作，以用于发送参考信号；在所述第一LBT操作失败的情况下，所述第一网络设备发送指示信息，所述指示信息用于指示所述第一网络设备未通过所述非授权频段发送所述参考信号。

Description

无线通信方法、终端设备和网络设备 技术领域
本申请涉及通信领域，并且更具体地，涉及一种无线通信方法、终端设备和网络设备。
背景技术
在基于长期演进(Long Term Evolution，LTE)的授权辅助接入(Licensed Assisted Access，LAA)技术中，因为PCell是在授权频段上，因此，UE可以在授权频段上进行无线链路监测(Radio Link Monitoring，RLM)。
其中，在执行RLM时，基站可以在授权频段上发送参考信号，终端设备可以检测参考信号，并基于检测到的参考信号，对信道质量进行判断。
在未来的通信系统中，例如新无线(New Radio，NR)通信系统，可以同时支持授权频段和非授权频段，并且需要在非授权频段进行RLM，如何在非授权频段进行RLM是一项亟待解决的问题。
发明内容
本申请实施例提供一种无线方法和设备，可以合理实现非授权频段进行RLM。
第一方面，提供了一种无线通信方法，包括：第一网络设备在非授权频段上执行第一先听后说LBT操作，以用于发送参考信号；在所述第一LBT操作失败的情况下，所述第一网络设备发送指示信息，所述指示信息用于指示所述第一网络设备未通过所述非授权频段发送所述参考信号。
因此，在本申请实施例中，在非授权频段上因LBT操作失败未发送参考信号时，网络设备可以发送指示信息，可以避免不恰当的同步或失步操作。
结合第一方面，在第一方面的一种可能的实现方式中，所述第一网络设备发送指示信息，包括：所述第一网络设备在所述非授权频段上执行第二LBT操作；在所述第二LBT操作成功的情况下，所述第二网络设备通过所述非授权频段向终端设备发送所述指示信息。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述第一网络设备发送指示信息，包括：所述第一网络设备通过授权频段向所述终端设备发送所述指示信息。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述第一网络设备发送指示信息，包括：所述第一网络设备向第二网络设备发送所述指示信息，所述指示信息用于所述第二网络设备通过授权频段向所述终端设备指示所述第一网络设备未通过所述非授权频段发送所述参考信号。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述第一网络设备和所述第二网络设备采用不同的无线接入技术RAT；所述指示信息为由所述第一网络设备进行抽象语法标记一ASN.1编码的信息。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述方法还包括：所述第一网络设备向所述第二网络设备发送以下信息中的至少一种：所述参考信号在所述第一网络设备侧的定时信息；发送所述参考信号的时频资源位置；发送所述参考信号的时间窗；发送所述参考信号的周期；和所述参考信号的类型。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述方法还包括：所述第一网络设备向所述第二网络设备发送统计信息，所述统计信息用于指示所述参考信号在所述非授权频段未被成功发送的次数。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述方法还包括：所述第一网络设备接收所述第二网络设备发送的通知消息，所述通知消息用于通知将服务终端设备的网络设备由所述第一网络设备更改为其他网络设备，或者用于通知更改所述第一网络设备的主小区PCell或主辅小区PSCell。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述第一网络设备为辅节点SN，所述第二网络设备为主节点MN。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述第一网络设备在非授权频段上执行第一先听后说LBT操作，包括：所述第一网络设备在所述非授权频段的多个频点上执行所述第一LBT操作；所述第一LBT操作失败为所述多个频点上均未监测到可用资源。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述第一网络设备在非授权频段上执行第一先听后说LBT操作，包括：所述第一网络设备在所述非授权频段上，在时间窗内，执行所述第一LBT；所述第一LBT操作失败为在所述时间窗内均未监测到可用资源。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述指示信息承载于无线资源控制RRC信令、物理层信令或媒体接入控制MAC层信令中。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述方法用于独立运行SA网络场景下。
结合第一方面或上述任一种可能的实现方式，在第一方面的另一种可能的实现方式中，所述方法用于非独立运行NSA或双连接DC网络场景下。
第二方面，提供了一种无线通信方法，包括：第二网络设备接收第一网络设备发送的第一指示信息，所述第一指示信息用于指示所述第一网络设备未通过非授权频段发送参考信号；所述第二网络设备通过授权频段向终端设备发送第二指示信息，所述第二指示信息用于指示所述第一网络设备未通过非授权频段发送所述参考信号。
因此，在本申请实施例中，第二网络设备接收第一网络设备发送的第一指示信息，该第一指示信息用于指示该第一网络设备未通过非授权频段发送参考信号。该第二网络设备通过授权频段向终端设备发送第二指示信息，该第二指示信息用于指示该第一网络设备未通过非授权频段发送该参考信号，从而可以使得终端设备避免不恰当的同步或失步操作，并且通过授权频段发送该第二指示信息，可以保证或按时发送该第二指示信息。
结合第二方面，在第二方面的一种可能的实现方式中，所述第一网络设备和所述第二网络设备采用不同的无线接入技术RAT；所述第二指示信息包括所述第一指示信息中由所述第一网络设备进行抽象语法标记一ASN.1编码的信息；所述第二指示信息包括所述第一指示信息。
结合第二方面或上述任一种可能的实现方式，在第二方面的另一种可能的实现方式中，所述方法还包括：所述第二网络设备接收所述第一网络设备发送的以下信息中的至少一种信息：所述参考信号在所述第一网络设备侧的定时信息；发送所述参考信号的时频资源位置；发送所述参考信号的周期；发送所述参考信号的时间窗；和所述参考信号的类型；所述第二网络设备通过授权频段向终端设备发送第二指示信息，包括：基于所述至少一种信息，所述第二网络设备通过授权频段向终端设备发送所述第二指示信息。
结合第二方面或上述任一种可能的实现方式，在第二方面的另一种可能的实现方式中，所述方法还包括：所述第二网络设备确定所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数；基于所述统计信息，所述第二网络设备将服务终端设备的网络设备由所述第一网络设备改为其他网络设备，或者更改所述第一网络设备的PCell或PSCell。
结合第二方面或上述任一种可能的实现方式，在第二方面的另一种可能的实现方式中，所述第二网络设备确定所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数，包括：所述第二网络设备接收所述第一网络设备发送的统计信息，所述统计信息用于指示所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数；基于所述统计信息，所述第二网络设备确定所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数。
结合第二方面或上述任一种可能的实现方式，在第二方面的另一种可能的实现方式中，所述获取所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数，包括：根据所述第一网络设备向所述第二网络设备发送所述第一指示信息的次数，所述第二网络设备确定所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数。
结合第二方面或上述任一种可能的实现方式，在第二方面的另一种可能的实现方式中，所述第一网络设备为辅节点SN，所述第二网络设备为主节点MN。
结合第二方面或上述任一种可能的实现方式，在第二方面的另一种可能的实现方式中，所述方法用于非独立运行NSA或双连接DC网络场景下。
第三方面，提供了一种无线通信方法，包括：第二网络设备接收第一网络设备发送的统计信息，所述统计信息用于指示所述参考信号未被所述第一网络设备通过非授权频段成功发送的次数；基于所述统计次数，将服务终端设备的网络设备由所述第一网络设备改为其他网络设备，或者更改所述第一网络设备的主小区PCell或主辅小区PSCell。
因此，在本申请实施例中，第二网络设备接收第一网络设备发送的统计信息，该统计信息用于指示该参考信号未被该第一网络设备通过非授权频段成功发送的次数，从而可以基于该统计次数，将服务终端设备的网络设备由该第一网络设备改为其他网络设备，或者更改该第一网络设备的主小区PCell或主辅小区PSCell，可以避免采用不当的网络设备或PCell或PSCell为终端设备服务所带来的通信系统较差的问题。
结合第三方面，在第三方面的一种可能的实现方式中，所述方法用于非独立运行NSA或双连接DC网络场景下。
第四方面，提供了一种无线通信方法，包括：终端设备接收指示信息，所述指示信息用于指示第一网络设备未在非授权频段发送参考信号；基于所述指示信息，所述终端设备执行无线链路监测RLM操作。
因此，在本申请实施例中，终端设备接收网络设备因在非授权频段上因LBT操作失败未发送参考信号的指示信息，并且可以基于该指示信息进行RLM，可以避免不恰当的同步或失步操作。
结合第四方面，在第四方面的一种可能的实现方式中，基于所述指示信息，所述终端设备执行RLM操作，包括：基于所述指示信息，所述终端设备调整RLM操作对应的失步计数器和/或同步计数器。
结合第四方面或上述任一种可能的实现方式，在第四方面的另一种可能的实现方式中，所述终端设备接收指示信息，包括：所述终端设备通过非授权频段接收所述第一网络设备发送的所述指示信息；或，所述终端通过授权频段接收第二网络设备发送的所述指示信息。
结合第四方面或上述任一种可能的实现方式，在第四方面的另一种可能的实现方式中，所述第一网络设备为辅节点SN，所述第二网络设备为主节点MN。
第五方面，提供了一种无线通信方法，包括：从多个频点或小区中，网络设备确定目标频点或小区；在所述目标频点或小区中，发送参考信号或系统信息。
因此，在本申请实施例中，在多个频点上，网络设备确定频点，并在确定的频点上发送参考信号，从而该终端设备执行RLM操作，从而可以避免在特定频点监测不到资源所带来的参考信号无法发送而带来的RLM无法执行的问题；或者，网络设备在确定的频点上发送系统信息，可以避免终端设备无法获取系统信息所带来的无法后续通信的问题。
结合第五方面，在第五方面的一种可能的实现方式中，所述多个频点或小区属于非授权频段的频点或小区。
结合第五方面或上述任一种可能的实现方式，在第五方面的另一种可能的实现方式中，所述从多个频点或小区中，网络设备确定目标频点或小区，包括：所述网络设备依次在所述多个频点进行先听后说LBT操作；将执行LBT操作成功的频点，作为所述目标频点。
结合第五方面或上述任一种可能的实现方式，在第五方面的另一种可能的实现方式中，所述方法还包括：所述网络设备向终端设备发送通知消息，所述通知消息用于指示进行参考信号或系统信息接收的所述目标频点或小区。
第六方面，提供了一种无线通信方法，包括：在多个频点上，终端设备确定执行无线链路监测RLM操作的频点；在确定的频点上，所述终端设备执行RLM操作，其中，所述多个频点上的RLM操作采用同一失步计数器和/或同一同步计数器，或,在确定的频点上，所述终端设备接收系统信息。
因此，在本申请实施例中，在多个频点上，终端设备确定执行无线链路监测RLM操作的频点，在确定的频点上，该终端设备执行RLM操作，其中，该多个频点上的RLM操作采用同一失步计数器和/或同一同步计数器。从而可以避免在特定频点监测不到资源所带来的参考信号无法发送而带来的RLM无法执行的问题，并且该多个频点上的RLM操作采用同一失步计数器和/或同一同步计数器，可以避免某个频点所引起来的失步的问题；或者，终端设备在确定的频点上接收参系统信息，可以避免终端设备无法获取系统信息所带来的无法后续通信的问题。
结合第六方面，在第六方面的一种可能的实现方式中，所述多个频点或小区属于非授权频段的频点或小区。
结合第六方面或上述任一种可能的实现方式，在第六方面的另一种可能的实现方式中，所述方法还包括：所述终端设备接收网络设备发送的通知消息，所述通知消息用于指示发送参考信号的频点；在多个频点上，所述终端设备确定执行RLM操作的频点，包括:所述终端设备将所述通知消息指示的频点，确定为所述执行RLM操作的频点。
结合第六方面或上述任一种可能的实现方式，在第六方面的另一种可能的实现方式中，在确定的频点上，终端设备执行RLM操作，包括：在时间窗内，所述终端设备执行RLM操作。
结合第六方面或上述任一种可能的实现方式，在第六方面的另一种可能的实现方式中，所述在时间窗内，所述终端设备执行RLM操作，包括：在所述时间窗结束时，如果未接收到参考信号，所述终端设备则将所述失步计数器加一。
第七方面，提供了一种无线通信方法，包括：所述终端设备确定时间窗；在所述时间窗内，所述终端设备在非授权频段执行无线链路监测RLM操作。
因此，在本申请实施例中，终端设备在时间窗内，在非授权频段执行无线链路监测RLM操作，可以增加接收到参考信号的概率，可以避免因无法执行RLM所带来的失步的问题。
结合第七方面，在第七方面的一种可能的实现方式中，所述在时间窗内，所述终端设备在非授权频段执行RLM操作，包括：
在所述时间窗结束时，如果在所述非授权频段未接收到参考信号，所述终端设备将所述失步计数器加一。
第八方面，提供了一种通信设备，用于执行上述任一方面或其各实现方式中的方法。
具体地，该通信设备包括用于执行上述任一方面或其各实现方式中的方法的功能模块。
第九方面，提供了一种通信设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述任一方面或其各实现方式中的方法。
第十方面，提供了一种芯片，用于实现上述任一方面或其各实现方式中的方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行如上述任一方面或其各实现方式中的方法。
第十一方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述任一方面或其各实现方式中的方法。
第十二方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述任一方面或其各实现方式中的方法。
第十三方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述任一方面或其各实现方式中的方法。
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图1是根据本申请实施例的无线通信系统的示意性图。
图2是根据本申请实施例的无线通信方法的示意性流程图。
图3是根据本申请实施例的无线通信方法的示意性流程图。
图4是根据本申请实施例的无线通信方法的示意性流程图。
图5是根据本申请实施例的无线通信方法的示意性流程图。
图6是根据本申请实施例的无线通信方法的示意性流程图。
图7是根据本申请实施例的无线通信方法的示意性流程图。
图8是根据本申请实施例的无线通信方法的示意性流程图。
图9是根据本申请实施例的无线通信方法的示意性流程图。
图10是根据本申请实施例的无线通信方法的示意性流程图。
图11是根据本申请实施例的无线通信方法的示意性流程图。
图12是根据本申请实施例的网络设备的示意性框图。
图13是根据本申请实施例的网络设备的示意性框图。
图14是根据本申请实施例的网络设备的示意性框图。
图15是根据本申请实施例的终端设备的示意性框图。
图16是根据本申请实施例的网络设备的示意性框图。
图17是根据本申请实施例的终端设备的示意性框图。
图18是根据本申请实施例的终端设备的示意性框图。
图19是根据本申请实施例的通信设备的示意性框图。
图20是根据本申请实施例的芯片的示意性框图。
图21是根据本申请实施例的通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统或5G系统等。
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110， 网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备110可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、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。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、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、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，终端设备120之间可以进行终端直连(Device to Device，D2D)通信。
可选地，5G系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
为了清楚地理解本申请，以下将对本申请实施例可以用到的场景用举例的方式进行说明，但应理解，本申请实施例还可以用到其他的场景中。
新空口非授权频段(NR unlicensed，NR-U)技术可以用于独立运行(Standalone,SA)、非独立运行(Non-StandAlone，NSA)和双连接(Dual Connectivity，DC)网络场景中。
在SA网络场景下，可以不配置能够支持主小区(Primary Cell，PCell)功能的NR辅(secondary)基站。SA网络场景下，可以由一个网络设备(例如，基站或网络节点)为终端设备服务，该网络设备可以利用授权频段和非授权频段为终端设备服务。
在NSA网络场景下，可以配置能够支持主小区(Primary Cell，PCell)功能的NR辅(secondary)基站(例如，辅节点(Secondary Node，SN))以及配置主节点(Master Node，MN)。其中，MN可以支持授权频段，SN可以支持非授权频段。
在DC场景下，可以配置多个网络设备或节点与终端进行通信，其中，该多个网络设备可以包括MN和SN，其中，MN可以支持授权频段，SN可以支持非授权频段。
在需要利用非授权频段进行传输时，可以对非授权频段进行信道质量监测，例如，进行RLM。
例如，在SA场景下，可以非授权频段的PCell上需要执行RLM功能。在NSA场景下，在MN支 持授权频段的情况下，可以在非授权频段的SN上的主辅小区(Primary Secondary Cell,PSCell)上执行RLM功能。在DC场景下，在MN支持授权频段的情况下，可以在非授权频段的SN上的PSCell上执行RLM功能。
其中，在非授权频段上进行信道质量监测的技术挑战来自于网络侧的下行的LBT操作可能会失败，即无法获得信道。这样，网络设备就无法在固定的时频资源上发送参考信号(例如，同步信号块(Synchronous Signal Block，SSB)或者信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)。如果网络设备没有发送，终端的测量值会很低，此时终端无法区分到底是参考信号因为功率和路损等原因导致测量值过低，还是网络设备侧没有发送，因此无法进行RLM操作。因此，本申请实施例提供了以下的方案可以解决该问题。
图2是根据本申请实施例的无线通信方法200的示意性流程图。该方法200包括以下内容中的至少部分内容。
可选地，在本申请实施例中，该方法可以用于SA、NSA和DC网络场景下。
可选地，在本申请实施例中，以下提到的第一网络设备可以为SN，第二网络设备可以为MN。
在210中，第一网络设备在非授权频段上执行第一先听后说(Listen Before Talk，LBT)操作，以用于发送参考信号。
具体地，第一网络设备可在非授权频段发送参考信号之后，可以在非授权频段上进行侦听，当监听到信道或资源可用时，可以发送参考信号。
其中，在本申请实施例中，在没有侦听到可用的信道或资源时，则认为LBT操作成功，在侦听到可用的信道或资源时，则可以认为LBT操作成功。
可选地，在本申请实施例中，该第一网络设备在该非授权频段上，在时间窗内，执行该第一LBT；该第一LBT操作失败为在该时间窗内均未监测到可用资源。
具体地，在第一网络设备需要在非授权频段上发送参考信号时，可以在一个时间窗口内进行信道的侦听，如果该窗口内均未检测到可用资源，则可以认为第一LTB失败。由此，在时间窗内执行LBT，可以增加检测到可用资源的概率。
可选地，在本申请实施例中，该参考信号可以包括SSB和/或CSI-RS，终端设备可以基于参考信号执行例如RLM，以判断下行信道的信道质量。
其中，网络设备可以通过无线资源控制(Radio Resource Control，RRC)信令配置用于RLM的参数，包括Qin，Qout，N310，N311等参数。如果终端设备测量得到的信号质量高于同步门限Qin，则终端设备的物理层可以向高层上报同步(in sync，IS)指示；反之，如果终端设备测量得到的信号质量低于失步门限Qout，则终端设备的物理层向高层上报失步(out of sync，OOS)指示。如果终端设备的高层从物理层接收到连续的N310个OOS指示(这里假设其它定时器例如定时器T311没有在运行，本申请实施例仅考虑定时器T310机制下的RLM)，则启动定时器T310。当终端设备的高层从物理层接收到连续的N311个IS指示且定时器T310在运行(即定时器T310还没有超时)，则停止定时器T310的运行。如果在定时器T310超时之前，终端设备的高层间没有收到连续的N311个IS指示，则终端设备认为链路连接失败(Radio Link Failure，RLF)。
可选地，在本申请实施例中，该非授权频段可以包括多个频点。针对这种情况，可以由以下两种实现方式。
在一种实现方式中，该第一网络设备在该非授权频段的多个频点上执行该第一LBT操作；该第一LBT操作失败为该多个频点上均未监测到可用资源，RLM对应的失步计数器是同一个和/同步计数器是同一个。
在另一种实现方式中，该多个频段的RLM操作分别是独立进行的，RLM对应的失步计数器和/或同步计数器是独立的。
可选地，在本申请实施例中，第一网络设备可以在非授权频段上的PCell或PSCell指示LBT，以在非授权频段上的PCell或PSCell发送参考信号。
在220中，在该第一LBT操作失败的情况下，该第一网络设备发送指示信息，该指示信息用于指示该第一网络设备未通过该非授权频段发送该参考信号。
可选地，在本申请实施例中，在该第一LBT操作失败的情况下，第一网络设备可以放弃发送该参考信号，也可以在特定的时间窗内推迟发送该参考信号。
应理解，在本申请实施例中提到的第一网络设备未通过该非授权频段发送该参考信号或放弃通过非授权频段发送参考信号可以是指在执行的某次LBT操作失败时，放弃发送此次需要发送的参考信号，在其他的时间(其他次参考信号发送节点)执行LBT操作成功的情况下，
其中，在第一网络设备放弃发送该参考信号的情况下，可以向网络设备发送指示信息，该指示信息 用于指示该第一网络设备未通过该非授权频段发送该参考信号，其中，该指示信息可选地可以指示放弃的是哪次发送的参考信号(例如，可以通过占用的时域资源等指示)。当然，也可以无需指示放弃的是哪次发送的参考信号，例如，下次参考信号的发送时间在指示信息的发送时间之后。
以下将介绍几种第一网络设备发送指示信息的实现方式。但应理解，本申请实施例并不限于此。
在一种实现方式中，该第一网络设备在该非授权频段上执行第二LBT操作；在该第二LBT操作成功的情况下，该第二网络设备通过该非授权频段向终端设备发送该指示信息。
具体地，第一网络设备在放弃发送参考信号(具体，可以是某次或某段参考信号的发送)的情况下，可以在非授权频段执行LBT操作，并在LBT操作的成功下，该第二网络设备通过该非授权频段向终端设备发送该指示信息，该指示信息指示某个或某些参考信号未通过非授权频段发送。
其中，该种实现方式可以用于SA、NSA和DC场景。
在该种实现方式中，通过第一网络设备通过非授权频段发送指示信息意味着第一网络设备在发送参考信号失败后，可以通过LBT操作继续发送信令给UE，这种方法的优点是不增加第二网络设备的负荷。
可选地，在该种实现方式下，第一网络设备可以通过与终端设备之间的无线资源控制(Radio Resource Control，RRC)信令连接，向终端设备发送该指示信息，也即第一网络设备可以使用RRC信令向终端设备发送该指示信息。当然，也可以通过其他消息发送该指示信息，例如，广播消息、物理层信令或媒体接入控制(Media Access Control，MAC)层信令。
在一种实现方式中，该第一网络设备通过授权频段向该终端设备发送该指示信息。
具体地，第一网络设备在放弃发送参考信号(具体，可以是某次或某段参考信号的发送)的情况下，如果第一网络设备可以通过授权频段与终端设备进行通信，则第一网络设备可以通过授权频段向终端设备发送该指示信息。
其中，该种实现方法可以用于但不限于NSA、SA和DC网络场景。
该种实现方式可以保证或按时发送指示信息。
可选地，在该种实现方式下，第一网络设备可以通过与终端设备之间的无线资源控制(Radio Resource Control，RRC)信令连接，向终端设备发送该指示信息，也即第一网络设备可以使用RRC信令向终端设备发送该指示信息。当然，也可以通过其他消息发送该指示信息，例如，广播消息、物理层信令或媒体接入控制(Media Access Control，MAC)层信令。
在一种实现方式中，该第一网络设备向第二网络设备发送该指示信息。
具体地，具体地，第一网络设备在放弃发送参考信号(具体，可以是某次或某段参考信号的发送)的情况下，第一网络设备可以通过与第二网络设备之间的Xn/X2接口来将该指示信息发送给第二网络设备，由此，第二网络设备可以通过授权频段向该终端设备指示该第一网络设备未通过该非授权频段发送该参考信号。其中，由于授权频段比较可靠，可以保证或按时发送该指示信息。此时，第二网络设备可选地可以通过PCell来向终端设备发送该指示信息。
可选地，在该种实现方式下，第二网络设备可以通过与终端设备之间的无线资源控制(Radio Resource Control，RRC)信令连接，向终端设备发送该指示信息，也即第二网络设备可以使用RRC信令向终端设备发送该指示信息。当然，也可以通过其他消息发送该指示信息，例如，广播消息、物理层信令或媒体接入控制(Media Access Control，MAC)层信令。
或者，该第二网络设备也可以不向终端设备不通过授权频段向该终端设备指示该第一网络设备未通过该非授权频段发送该参考信号，而是基于接收到的指示信息的数量来判断第一网络设备与终端设备之间的情况，来决定是否将服务终端设备的网络设备由第一网络设备更改为其他网络设备，或者更改第一网络设备的PSCell或PCell。此时，第一网络设备可选地在非授权频段上的PCell或PSCell执行LBT操作，以用于在非授权频段上的PCell或PSCell上发送参考信号。
可选地，在本申请实施例中，该第一网络设备和该第二网络设备采用不同的无线接入技术RAT；该指示信息为由该第一网络设备进行抽象语法标记一ASN.1编码的信息。
具体地，第一网络设备和第二网络设备可以采用同样的无线接入技术(Radio Access Technology，RAT)或不同的RAT(例如，第一网络设备为NR接入网设备，第二网络设备为LTE接入网设备)。如果采用的RAT不同，则第一网络设备可以将该指示信息按照第一网络设备RAT进行ASN.1编码，并将编码后的指示信息传递给第二网络设备，第二网络设备收到该指示信息之后，不再进行ASN.1编码，并传递给终端设备，此时，第一网络设备可以伴随该指示信息向第二网络设备发送信息，以指示第二网络设备将该指示信息发送给终端设备。
可选地，在本申请实施例中，该第一网络设备向该第二网络设备发送以下信息中的至少一种：
该参考信号在该第一网络设备侧的定时信息；
发送该参考信号的时频资源位置；
发送该参考信号的时间窗；
发送该参考信号的周期；和
该参考信号的类型。
具体地，第一网络设备和第二网络设备之间可以是同步或者异步的。对于同步的场景，第二网络设备和第一网络设备的定时是相同的(例如，对于NAS或DC的场景下，可以是第二网络设备上的PCell和第一网络设备上的PSCell的定时是相同的)，而在第一网络设备和第二网络设备异步的情况下，第一网络设备和第二网络设备的定时信息时不一样的。因为，在通知给终端设备的信令中，可以指示第二网络设备未能发送的参考信号的类型，具体参数因为同步和异步，可以存在参数的差别：参考信号在第一网络设备侧的定时信息、或参考信号的时频资源位置，或者周期或发送时间窗等参考信号的类型，因此，可以将这些信息发送给第二网络设备，第二网络设备可以由此向终端设备发送指示信息。
应理解，以上介绍了第一网络设备发送指示信息的方式，但是本申请实施例并不限于此，本申请实施例还可以具有其他的实现方式。
可选地，在本申请实施例中，在终端设备接收到第一网络设备或第二网络设备发送的指示信息，可以确定针对此次参考信号的发送，无需在失步计数器上加一，因此如果已经对失步计数器和/或同步计数器进行了计数操作，则可以调整失步计数器和/或同步计数器的计数，例如，可以将已经加一的失步计数器进行减一，从而可以避免不适当的同步(in-sync)或失步(out-of-sync)操作。
可选地，在本申请实施例中，该第一网络设备向该第二网络设备发送统计信息，该统计信息用于指示该参考信号在该非授权频段未被成功发送的次数。
由此，第二网络设备可以基于接收到的统计信息，来判断第一网络设备与终端设备之间的情况，来决定是否将服务终端设备的网络设备由第一网络设备更改为其他网络设备，或者更改第一网络设备的PCell或PSCell。此时，第一网络设备可选地在非授权频段上的PCell或PSCell执行LBT操作，以用于在非授权频段上的PCell或PSCell上发送参考信号。
可选地，在本申请实施例中，第二网络设备向第一网络设备发送通知消息，由此第一网络设备接收第二网络设备发送的通知消息，该通知消息用于通知将服务终端设备的网络设备由该第一网络设备更改为其他网络设备，或者用于通知更改该第一网络设备的主小区PCell或主辅小区PSCell。
因此，在本申请实施例中，在非授权频段上因LBT操作失败未发送参考信号时，网络设备可以发送指示信息，可以避免不恰当的同步或失步操作。
图3是根据本申请实施例的无线通信方法300的示意性流程图。如图3所示，该无线通信方法300包括以下内容中的至少部分内容。
可选地，在本申请实施例中，该方法可以用于NSA和DC网络场景下。
可选地，在本申请实施例中，以下提到的第一网络设备可以为SN，第二网络设备可以为MN。
在310中，第二网络设备接收第一网络设备发送的第一指示信息，该第一指示信息用于指示该第一网络设备未通过非授权频段发送参考信号。
在320中，该第二网络设备通过授权频段向终端设备发送第二指示信息，该第二指示信息用于指示该第一网络设备未通过非授权频段发送该参考信号。
可选地，在本申请实施例中，该第一网络设备和该第二网络设备采用不同的无线接入技术RAT；该第二指示信息包括该第一指示信息中由该第一网络设备进行抽象语法标记一ASN.1编码的信息；该第二指示信息包括该第一指示信息。
可选地，在本申请实施例中，该第二网络设备接收该第一网络设备发送的以下信息中的至少一种信息：
该参考信号在该第一网络设备侧的定时信息；
发送该参考信号的时频资源位置；
发送该参考信号的周期；
发送该参考信号的时间窗；和
该参考信号的类型；
基于该至少一种信息，该第二网络设备通过授权频段向终端设备发送该第二指示信息。
可选地，在本申请实施例中，该第二网络设备确定该参考信号未被该第一网络设备通过该非授权频段成功发送的次数；基于该统计信息，该第二网络设备将服务终端设备的网络设备由该第一网络设备改为其他网络设备，或者更改该第一网络设备的PCell或PSCell。
在一种实现方式中，该第二网络设备接收该第一网络设备发送的统计信息，该统计信息用于指示该参考信号未被该第一网络设备通过该非授权频段成功发送的次数；基于该统计信息，该第二网络设备确定该参考信号未被该第一网络设备通过该非授权频段成功发送的次数。
在另一种实现方式中，根据该第一网络设备向该第二网络设备发送该第一指示信息的次数，该第二网络设备确定该参考信号未被该第一网络设备通过该非授权频段成功发送的次数。
可选地，方法300可以适用于SN上的PSCell出现一系列的参考信号无法发送，在这种情况下，终端设备难以继续执行RLM功能，因此，可以触发PSCell的改变甚至SN的改变。
应理解，方法300中第一指示信息可以对应于方法200中的指示信息。
应理解，方法200中的描述可以适用于方法300，例如，方法200中关于第二网络设备的功能的描述或一些术语的限定或解释可以用于作为方法300的可选实现方式，为了简洁，在此不再赘述。
因此，在本申请实施例中，第二网络设备接收第一网络设备发送的第一指示信息，该第一指示信息用于指示该第一网络设备未通过非授权频段发送参考信号。该第二网络设备通过授权频段向终端设备发送第二指示信息，该第二指示信息用于指示该第一网络设备未通过非授权频段发送该参考信号，从而可以使得终端设备避免不恰当的同步或失步操作，并且通过授权频段发送该第二指示信息，可以保证或按时发送该第二指示信息。
图4是根据本申请实施例的无线通信方法400的示意性流程图。该方法400包括以下内容中的至少部分内容。
可选地，在本申请实施例中，该方法可以用于NSA和DC网络场景下。
可选地，在本申请实施例中，以下提到的第一网络设备可以为SN，第二网络设备可以为MN。
在410中，第二网络设备接收第一网络设备发送的统计信息，该统计信息用于指示该参考信号未被该第一网络设备通过非授权频段成功发送的次数。
在420中，基于该统计次数，将服务终端设备的网络设备由该第一网络设备改为其他网络设备，或者更改该第一网络设备的主小区PCell或主辅小区PSCell。
可选地，方法400可以适用于SN上的PSCell出现一系列的参考信号无法发送，在这种情况下，终端设备难以继续执行RLM功能，因此，可以触发PSCell的改变甚至SN的改变。
应理解，除了根据第一网络设备的统计信息，第二网络设备也可以根据其他方式，确定参考信号未被该第一网络设备通过非授权频段成功发送的次数。
应理解，方法200中的描述可以适用于方法400，例如，方法400中关于第二网络设备的功能的描述或一些术语的限定或解释可以用于作为方法400的可选实现方式，为了简洁，在此不再赘述。
因此，在本申请实施例中，第二网络设备接收第一网络设备发送的统计信息，该统计信息用于指示该参考信号未被该第一网络设备通过非授权频段成功发送的次数，从而可以基于该统计次数，将服务终端设备的网络设备由该第一网络设备改为其他网络设备，或者更改该第一网络设备的主小区PCell或主辅小区PSCell，可以避免采用不当的网络设备或PCell或PSCell为终端设备服务所带来的通信系统较差的问题。
图5是根据本申请实施例的无线通信方法500的示意性流程图。该方法500包括以下内容中的至少部分内容。
可选地，在本申请实施例中，该方法可以用于SA、NSA和DC网络场景下。
可选地，在本申请实施例中，以下提到的第一网络设备可以为SN，第二网络设备可以为MN。
在510中，终端设备接收指示信息，该指示信息用于指示第一网络设备未在非授权频段发送参考信号。
在520中，基于该指示信息，该终端设备执行无线链路监测RLM操作。
可选地，在本申请实施例中，基于该指示信息，该终端设备调整RLM操作对应的失步计数器和/或同步计数器。
可选地，在本申请实施例中，该终端设备通过非授权频段接收该第一网络设备发送的该指示信息；或，
该终端通过授权频段接收第二网络设备发送的该指示信息。
可选地，在本申请实施例中，在空口上，通知终端设备某个参考信号缺失的信令可以是RRC信令或者其他信令(如MAC层信令，物理层信令等)。
应理解，方法200中的描述可以适用于方法500，例如，方法500中关于终端设备的功能的描述或一些术语的限定或解释可以用于作为方法500的可选实现方式，为了简洁，在此不再赘述。
因此，在本申请实施例中，终端设备接收网络设备因在非授权频段上因LBT操作失败未发送参考信号的指示信息，并且可以基于该指示信息进行RLM，可以避免不恰当的同步或失步操作。
图6是根据本申请实施例的无线通信方法600的示意性流程图。该方法600包括以下内容中的至少部分内容。
在610中，该终端设备确定时间窗。
在620中，在该时间窗内，该终端设备在非授权频段执行无线链路监测RLM操作。
可选地，在本申请实施例中，在该时间窗结束时，如果在该非授权频段未接收到参考信号，该终端设备将该失步计数器加一。
可选地，在本申请实施例中，当第一网络设备在非授权频段上执行LBT以发送参考信号时，可以在特定的时间窗内发送该参考信号，如果在超出该时间窗后，参考信号仍未正常发送的情况下，第一网络设备把指示信息通知给第二网络设备，第二网络设备采取措施改变PSCell或者改变SN，或者通知UE。此时第一网络设备可以向第二网络设备通知时间窗信息。终端在检测了整个时间窗后仍未检测到参考信号才可以判定某个参考信号未收到。
因此，在本申请实施例中，终端设备在时间窗内，在非授权频段执行无线链路监测RLM操作，可以增加接收到参考信号的概率，可以避免因无法执行RLM所带来的失步的问题。
图7是根据本申请实施例的无线通信方法700的示意性流程图。该方法700包括以下内容中的至少部分内容。
可选地，在本申请实施例中，该方法700可以用于SA、NSA或DC的网络场景下。
可选地，在本申请实施例中，以下提到的网络设备可以NSA或DC网络场景下的SN。
在710中，从多个频点或小区中，网络设备确定目标频点或小区。
可选地，在本申请实施例中，该多个频点或小区属于非授权频段的频点或小区。
可选地，在本申请实施例中，该网络设备依次在该多个频点进行先听后说LBT操作；将执行LBT操作成功的频点，作为该目标频点。
具体地，该网络设备可以按照一定顺序在该多个频点进行先听后说LBT操作，如果在某个频段侦听到可用资源，则可以不再在其他频点上进行LBT操作。
在720中，在该目标频点或小区中，发送参考信号或系统信息。
可选地，在本申请实施例中，该网络设备向终端设备发送通知消息，该通知消息用于指示进行参考信号或系统信息接收的该目标频点或小区。
其中，可以通过目标频点或小区发送该通知消息，也可以通过其他的频点或小区发送给通知消息。
可选地，在本申请实施例中，当基站因为LBT导致一个或者多个下行参考信号无法发送时，可以通过其他频点发送参考信号，并通过信令告知终端设备在哪个频点上有参考信号。如果终端设备在其他频点上检测到了参考信号，也可以继续执行RLM功能。其他频点上发送了参考信号并被UE接收到之后，可以将其他频点对应的辅小区(Seondary Cell，Scell)改变为PCell或者PSCell，当然，也可以不改变。
因此，在本申请实施例中，在多个频点上，网络设备确定频点，并在确定的频点上发送参考信号，从而该终端设备执行RLM操作，从而可以避免在特定频点监测不到资源所带来的参考信号无法发送而带来的RLM无法执行的问题；或者，网络设备在确定的频点上发送系统信息，可以避免终端设备无法获取系统信息所带来的无法后续通信的问题。
图8是根据本申请实施例的无线通信方法800的示意性流程图。该方法800包括以下内容中的至少部分内容。
在810中，在多个频点上，终端设备确定执行无线链路监测RLM操作的频点。
在820中，在确定的频点上，该终端设备执行RLM操作，其中，该多个频点上的RLM操作采用同一失步计数器和/或同一同步计数器；或者，在该确定的频点上，终端设备接收参考信号。
可选地，在本申请实施例中，该多个频点或小区属于非授权频段的频点或小区。
可选地，在本申请实施例中，该终端设备接收网络设备发送的通知消息，该通知消息用于指示发送参考信号的频点；该终端设备将该通知消息指示的频点，确定为该执行RLM操作的频点。
可选地，在本申请实施例中，在时间窗内，该终端设备执行RLM操作。
可选地，在本申请实施例中，在该时间窗结束时，如果未接收到参考信号，该终端设备则将该失步计数器加一。
可选地，在本申请实施例中，在该时间窗结束时，如果未接收到参考信号，该终端设备则将该同步计数器加一。
因此，在本申请实施例中，在多个频点上，终端设备确定执行无线链路监测RLM操作的频点，在确定的频点上，该终端设备执行RLM操作，其中，该多个频点上的RLM操作采用同一失步计数器和/或同一同步计数器。从而可以避免在特定频点监测不到资源所带来的参考信号无法发送而带来的RLM无法执行的问题，并且该多个频点上的RLM操作采用同一失步计数器和/或同一同步计数器，可以避免某个频点所引起来的失步的问题；或者，终端设备在确定的频点上接收参系统信息，可以避免终端设备无法获取系统信息所带来的无法后续通信的问题。
图9是根据本申请实施例的无线通信方法900的示意性流程图。该方法900包括以下内容中的至少部分内容。
在910中，SN进行LBT操作，并在LBT操作失败时，放弃发送参考信号。
在920中，SN通知MN某个参考信号因LBT失败放弃发送。
在930中，MN基于SN的通知，向UE通知某个参考信号因LBT失败未在非授权频段发送。
在940中，UE改变失步计数器Qout的计数结果，即放弃加1。
图10是根据本申请实施例的无线通信方法1000的示意性流程图。该方法1000包括以下内容中的至少部分内容。
在1010中，SN进行LBT操作，并在LBT操作失败时，放弃发送参考信号。
在1020中，SN通知MN，一系列参考信号因LBT失败，放弃在非授权频段上传递给UE。
在1030中，MN根据SN的通知，决定是否改变SN或改变SN上的PSCell。
图11是根据本申请实施例的无线通信方法1100的示意性流程图。该方法1100包括以下内容中的至少部分内容。
在1110中，MN/SN进行LBT操作，并在LBT操作失败时，放弃发送参考信号。
在1120中，MN/SN在其他频点上发送参考信号，并告知UE频点信息。
在1130中，如果UE在其他频点上的SCell进入同步，则可以将SCell改变为PCell或PSCell。
应理解，本申请实施例的各个方法并非是独立的，在不矛盾的情况下是可以结合使用的，并且各个方法的描述可以适用于其他方法，为了简洁，在此不再赘述。
图12是根据本申请实施例的网络设备1200的示意性框图。如图12所示，该网络设备1200包括处理单元1210和通信单元1220；其中，
该处理单元1210用于：在非授权频段上执行第一先听后说LBT操作，以用于发送参考信号；
该通信单元1220用于：在该第一LBT操作失败的情况下，发送指示信息，该指示信息用于指示该网络设备未通过该非授权频段发送该参考信号。
可选地，该处理单元1210进一步用于：
在该非授权频段上执行第二LBT操作；
该通信单元1220进一步用于：在该第二LBT操作成功的情况下，该第二网络设备通过该非授权频段向终端设备发送该指示信息。
可选地，该通信单元1220进一步用于：
通过授权频段向该终端设备发送该指示信息。
可选地，该通信单元1220进一步用于：
向第二网络设备发送该指示信息，该指示信息用于该第二网络设备通过授权频段向该终端设备指示该网络设备未通过该非授权频段发送该参考信号。
可选地，该网络设备和该第二网络设备采用不同的无线接入技术RAT；该指示信息为由该网络设备进行抽象语法标记一ASN.1编码的信息。
可选地，该通信单元1220进一步用于：
向该第二网络设备发送以下信息中的至少一种：
该参考信号在该网络设备侧的定时信息；
发送该参考信号的时频资源位置；
发送该参考信号的时间窗；
发送该参考信号的周期；和
该参考信号的类型。
可选地，该通信单元1220进一步用于：
向该第二网络设备发送统计信息，该统计信息用于指示该参考信号在该非授权频段未被成功发送的次数。
可选地，该通信单元1220进一步用于：
接收该第二网络设备发送的通知消息，该通知消息用于通知将服务终端设备的网络设备由该网络设备更改为其他网络设备，或者用于通知更改所网络设备的主小区PCell或主辅小区PSCell。
可选地，该网络设备为辅节点SN，该第二网络设备为主节点MN。
可选地，该处理单元1210进一步用于：
在该非授权频段的多个频点上执行该第一LBT操作；
该第一LBT操作失败为该多个频点上均未监测到可用资源。
可选地，该处理单元1210进一步用于：
在该非授权频段上，在时间窗内，执行该第一LBT；
该第一LBT操作失败为在该时间窗内均未监测到可用资源。
可选地，该指示信息承载于无线资源控制RRC信令、物理层信令或MAC层信令中。
可选地，该设备用于独立运行SA网络场景下。
可选地，该设备用于非独立运行NSA或双连接DC网络场景下。
应理解，该网络设备1200可以实现由上述方法中由第一网络设备实现的相应操作，为了简洁，在此不再赘述。
图13是根据本申请实施例的网络设备1300的示意性框图。该网络设备1300包括接收单元1310和发送单元1320；其中，
该接收单元1310用于：接收第一网络设备发送的第一指示信息，该第一指示信息用于指示该第一网络设备未通过非授权频段发送参考信号；
该发送单元1320用于：通过授权频段向终端设备发送第二指示信息，该第二指示信息用于指示该第一网络设备未通过非授权频段发送该参考信号。
可选地，该第一网络设备和该网络设备采用不同的无线接入技术RAT；该第二指示信息包括该第一指示信息中由该第一网络设备进行抽象语法标记一ASN.1编码的信息；
该第二指示信息包括该第一指示信息。
可选地，该接收单元1310进一步用于：
接收该第一网络设备发送的以下信息中的至少一种信息：
该参考信号在该第一网络设备侧的定时信息；
发送该参考信号的时频资源位置；
发送该参考信号的周期；
发送该参考信号的时间窗；和
该参考信号的类型；
该发送单元1320进一步用于：
基于该至少一种信息，通过授权频段向终端设备发送该第二指示信息。
可选地，如图13所示，网络设备1300还包括处理单元1330用于：
确定该参考信号未被该第一网络设备通过该非授权频段成功发送的次数；
基于该统计信息，将服务终端设备的网络设备由该第一网络设备改为其他网络设备，或者更改该第一网络设备的PCell或PSCell。
可选地，该接收单元1310进一步用于：
接收该第一网络设备发送的统计信息，该统计信息用于指示该参考信号未被该第一网络设备通过该非授权频段成功发送的次数；
该处理单元1330进一步用于：基于该统计信息，确定该参考信号未被该第一网络设备通过该非授权频段成功发送的次数。
可选地，该处理单元1330进一步用于：
根据该第一网络设备向该网络设备发送该第一指示信息的次数，确定该参考信号未被该第一网络设备通过该非授权频段成功发送的次数。
可选地，该第一网络设备为辅节点SN，该网络设备为主节点MN。
可选地，该设备用于非独立运行NSA或双连接DC网络场景下。
应理解，该网络设备1300可以实现由上述方法中由第二网络设备实现的相应操作，为了简洁，在此不再赘述。
图14是根据本申请实施例的网络设备1400的示意性框图。该网络设备1400包括通信单元1410和处理单元1420；其中，
该通信单元1410用于：接收第一网络设备发送的统计信息，该统计信息用于指示该参考信号未被该第一网络设备通过非授权频段成功发送的次数；
该处理单元1420用于：基于该统计次数，将服务终端设备的网络设备由该第一网络设备改为其他网络设备，或者更改该第一网络设备的主小区PCell或主辅小区PSCell。
可选地，该设备用于非独立运行NSA或双连接DC网络场景下。
应理解，该网络设备1400可以实现由上述方法中由网络设备实现的相应操作，为了简洁，在此不再赘述。
图15是根据本申请实施例的终端设备1500的示意性框图。该终端设备1500包括通信单元1510和处理单元1520；其中，
该通信单元1510用于：接收指示信息，该指示信息用于指示第一网络设备未在非授权频段发送参考信号；
该处理单元1520用于：基于该指示信息，执行无线链路监测RLM操作。
可选地，该处理单元1520进一步用于：
基于该指示信息，调整RLM操作对应的失步计数器和/或同步计数器。
可选地，该通信单元1510进一步用于：
通过非授权频段接收该第一网络设备发送的该指示信息；或，
通过授权频段接收第二网络设备发送的该指示信息。
可选地，该第一网络设备为辅节点SN，该第二网络设备为主节点MN。
应理解，该终端设备1500可以实现由上述方法中由终端设备实现的相应操作，为了简洁，在此不再赘述。
图16是根据本申请实施例的网络设备1600的示意性框图。该网络设备1600包括处理单元1610和通信单元1620；其中，
该处理单元1610用于：从多个频点或小区中，网络设备确定目标频点或小区；
该通信单元1620用于：在该目标频点或小区中，发送参考信号或系统信息。
可选地，该多个频点或小区属于非授权频段的频点或小区。
可选地，该处理单元1610进一步用于：
该网络设备依次在该多个频点进行先听后说LBT操作；
将执行LBT操作成功的频点，作为该目标频点。
可选地，该通信单元1620进一步用于：
向终端设备发送通知消息，该通知消息用于指示进行参考信号或系统信息接收的该目标频点或小区。
应理解，该网络设备1600可以实现由上述方法中由网络设备实现的相应操作，为了简洁，在此不再赘述。
图17是根据本申请实施例的终端设备1700的示意性框图。该终端设备1700包括处理单元1710和/或通信单元1720；其中，
该处理单元1710用于：在多个频点上，确定执行无线链路监测RLM操作的频点；
该处理单元1710进一步用于：在确定的频点上，执行RLM操作，其中，该多个频点上的RLM操作采用同一失步计数器和/或同一同步计数器，或，该通信单元1720用于：在确定的频点上，接收系统信息。
可选地，该多个频点或小区属于非授权频段的频点或小区。
可选地，该通信单元1720进一步用于：
接收网络设备发送的通知消息，该通知消息用于指示发送参考信号的频点；
该处理单元1710进一步用于：
将该通知消息指示的频点，确定为该执行RLM操作的频点。
可选地，该处理单元1710进一步用于：
在时间窗内，执行RLM操作。
可选地，该处理单元1710进一步用于：
在该时间窗结束时，如果未接收到参考信号，将该失步计数器加一。
应理解，该终端设备1700可以实现由上述方法中由终端设备实现的相应操作，为了简洁，在此不再赘述。
图18是根据本申请实施例的终端设备1800的示意性框图。该终端设备1800包括处理单元1810用于：
确定时间窗；
在该时间窗内，在非授权频段执行无线链路监测RLM操作。
可选地，该处理单元1810进一步用于：
在该时间窗结束时，如果在该非授权频段未接收到参考信号，将该失步计数器加一。
应理解，该终端设备1800可以实现由上述方法中由终端设备实现的相应操作，为了简洁，在此不再赘述。
图19是本申请实施例提供的一种通信设备1900示意性结构图。图19所示的通信设备1900包括处理器1910，处理器1910可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图19所示，通信设备600还可以包括存储器1920。其中，处理器1910可以从存储器 1920中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1920可以是独立于处理器1910的一个单独的器件，也可以集成在处理器1910中。
可选地，如图19所示，通信设备1900还可以包括收发器1930，处理器1910可以控制该收发器1930与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器1930可以包括发射机和接收机。收发器1930还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备1900具体可为本申请实施例的网络设备，并且该通信设备1900可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备1900具体可为本申请实施例的移动终端/终端设备，并且该通信设备1900可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
图20是本申请实施例的芯片的示意性结构图。图20所示的芯片2000包括处理器2010，处理器2010可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图20所示，芯片2000还可以包括存储器2020。其中，处理器2010可以从存储器2020中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器2020可以是独立于处理器2010的一个单独的器件，也可以集成在处理器710中。
可选地，该芯片2000还可以包括输入接口2030。其中，处理器2010可以控制该输入接口2030与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片2000还可以包括输出接口2040。其中，处理器2010可以控制该输出接口2040与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的移动终端/终端设备，并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图21是本申请实施例提供的一种通信系统2100的示意性框图。如图9所示，该通信系统2100包括终端设备2110和网络设备2120。
其中，该终端设备910可以用于实现上述方法中由终端设备实现的相应的功能，以及该网络设备2120可以用于实现上述方法中由网络设备实现的相应的功能为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate  SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的移动终端/终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，)ROM、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请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申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (56)

  1. 一种无线通信方法，其特征在于，包括：
    第一网络设备在非授权频段上执行第一先听后说LBT操作，以用于发送参考信号；
    在所述第一LBT操作失败的情况下，所述第一网络设备发送指示信息，所述指示信息用于指示所述第一网络设备未通过所述非授权频段发送所述参考信号。
  2. 根据权利要求1所述的方法，其特征在于，所述第一网络设备发送指示信息，包括：
    所述第一网络设备在所述非授权频段上执行第二LBT操作；
    在所述第二LBT操作成功的情况下，所述第二网络设备通过所述非授权频段向终端设备发送所述指示信息。
  3. 根据权利要求1所述的方法，其特征在于，所述第一网络设备发送指示信息，包括：
    所述第一网络设备通过授权频段向所述终端设备发送所述指示信息。
  4. 根据权利要求1所述的方法，其特征在于，所述第一网络设备发送指示信息，包括：
    所述第一网络设备向第二网络设备发送所述指示信息，所述指示信息用于所述第二网络设备通过授权频段向所述终端设备指示所述第一网络设备未通过所述非授权频段发送所述参考信号。
  5. 根据权利要求4所述的方法，其特征在于，所述第一网络设备和所述第二网络设备采用不同的无线接入技术RAT；所述指示信息为由所述第一网络设备进行抽象语法标记一ASN.1编码的信息。
  6. 根据权利要求4或5所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备向所述第二网络设备发送以下信息中的至少一种：
    所述参考信号在所述第一网络设备侧的定时信息；
    发送所述参考信号的时频资源位置；
    发送所述参考信号的时间窗；
    发送所述参考信号的周期；和
    所述参考信号的类型。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备向所述第二网络设备发送统计信息，所述统计信息用于指示所述参考信号在所述非授权频段未被成功发送的次数。
  8. 根据权利要求4至7中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备接收所述第二网络设备发送的通知消息，所述通知消息用于通知将服务终端设备的网络设备由所述第一网络设备更改为其他网络设备，或者用于通知更改所述第一网络设备的主小区PCell或主辅小区PSCell。
  9. 根据权利要求4至8中任一项所述的方法，其特征在于，所述第一网络设备为辅节点SN，所述第二网络设备为主节点MN。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述第一网络设备在非授权频段上执行第一先听后说LBT操作，包括：
    所述第一网络设备在所述非授权频段的多个频点上执行所述第一LBT操作；
    所述第一LBT操作失败为所述多个频点上均未监测到可用资源。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，所述第一网络设备在非授权频段上执行第一先听后说LBT操作，包括：
    所述第一网络设备在所述非授权频段上，在时间窗内，执行所述第一LBT；
    所述第一LBT操作失败为在所述时间窗内均未监测到可用资源。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，所述指示信息承载于无线资源控制RRC信令、物理层信令或媒体接入控制MAC层信令中。
  13. 根据权利要求1至3中任一项所述的方法，其特征在于，所述方法用于独立运行SA网络场景下。
  14. 根据权利要求1至12中任一项所述的方法，其特征在于，所述方法用于非独立运行NSA或双连接DC网络场景下。
  15. 一种无线通信方法，其特征在于，包括：
    第二网络设备接收第一网络设备发送的第一指示信息，所述第一指示信息用于指示所述第一网络设备未通过非授权频段发送参考信号；
    所述第二网络设备通过授权频段向终端设备发送第二指示信息，所述第二指示信息用于指示所述第一网络设备未通过非授权频段发送所述参考信号。
  16. 根据权利要求15所述的方法，其特征在于，所述第一网络设备和所述第二网络设备采用不同 的无线接入技术RAT；所述第二指示信息包括所述第一指示信息中由所述第一网络设备进行抽象语法标记一ASN.1编码的信息；
    所述第二指示信息包括所述第一指示信息。
  17. 根据权利要求15或16所述的方法，其特征在于，所述方法还包括：
    所述第二网络设备接收所述第一网络设备发送的以下信息中的至少一种信息：
    所述参考信号在所述第一网络设备侧的定时信息；
    发送所述参考信号的时频资源位置；
    发送所述参考信号的周期；
    发送所述参考信号的时间窗；和
    所述参考信号的类型；
    所述第二网络设备通过授权频段向终端设备发送第二指示信息，包括：
    基于所述至少一种信息，所述第二网络设备通过授权频段向终端设备发送所述第二指示信息。
  18. 根据权利要求15至17中任一项所述的方法，其特征在于，所述方法还包括：
    所述第二网络设备确定所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数；
    基于所述统计信息，所述第二网络设备将服务终端设备的网络设备由所述第一网络设备改为其他网络设备，或者更改所述第一网络设备的PCell或PSCell。
  19. 根据权利要求18所述的方法，其特征在于，所述第二网络设备确定所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数，包括：
    所述第二网络设备接收所述第一网络设备发送的统计信息，所述统计信息用于指示所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数；
    基于所述统计信息，所述第二网络设备确定所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数。
  20. 根据权利要求18所述的方法，其特征在于，所述获取所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数，包括：
    根据所述第一网络设备向所述第二网络设备发送所述第一指示信息的次数，所述第二网络设备确定所述参考信号未被所述第一网络设备通过所述非授权频段成功发送的次数。
  21. 根据权利要求15至20中任一项所述的方法，其特征在于，所述第一网络设备为辅节点SN，所述第二网络设备为主节点MN。
  22. 根据权利要求15至21中任一项所述的方法，其特征在于，所述方法用于非独立运行NSA或双连接DC网络场景下。
  23. 一种无线通信方法，其特征在于，包括：
    第二网络设备接收第一网络设备发送的统计信息，所述统计信息用于指示所述参考信号未被所述第一网络设备通过非授权频段成功发送的次数；
    基于所述统计次数，将服务终端设备的网络设备由所述第一网络设备改为其他网络设备，或者更改所述第一网络设备的主小区PCell或主辅小区PSCell。
  24. 根据权利要求23所述的方法，其特征在于，所述方法用于非独立运行NSA或双连接DC网络场景下。
  25. 一种无线通信方法，其特征在于，包括：
    终端设备接收指示信息，所述指示信息用于指示第一网络设备未在非授权频段发送参考信号；
    基于所述指示信息，所述终端设备执行无线链路监测RLM操作。
  26. 根据权利要求25所述的方法，其特征在于，基于所述指示信息，所述终端设备执行RLM操作，包括：
    基于所述指示信息，所述终端设备调整RLM操作对应的失步计数器和/或同步计数器。
  27. 根据权利要求25所述的方法，其特征在于，所述终端设备接收指示信息，包括：
    所述终端设备通过非授权频段接收所述第一网络设备发送的所述指示信息；或，
    所述终端通过授权频段接收第二网络设备发送的所述指示信息。
  28. 根据权利要求27所述的方法，其特征在于，所述第一网络设备为辅节点SN，所述第二网络设备为主节点MN。
  29. 一种无线通信方法，其特征在于，包括：
    从多个频点或小区中，网络设备确定目标频点或小区；
    在所述目标频点或小区中，发送参考信号或系统信息。
  30. 根据权利要求29所述的方法，其特征在于，所述多个频点或小区属于非授权频段的频点或小 区。
  31. 根据权利要求29或30所述的方法，其特征在于，所述从多个频点或小区中，网络设备确定目标频点或小区，包括：
    所述网络设备依次在所述多个频点进行先听后说LBT操作；
    将执行LBT操作成功的频点，作为所述目标频点。
  32. 根据权利要求29至31中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备向终端设备发送通知消息，所述通知消息用于指示进行参考信号或系统信息接收的所述目标频点或小区。
  33. 一种无线通信方法，其特征在于，包括：
    在多个频点上，终端设备确定执行无线链路监测RLM操作的频点；
    在确定的频点上，所述终端设备执行RLM操作，其中，所述多个频点上的RLM操作采用同一失步计数器和/或同一同步计数器，或，
    在确定的频点上，所述终端设备接收系统信息。
  34. 根据权利要求33所述的方法，其特征在于，所述多个频点或小区属于非授权频段的频点或小区。
  35. 根据权利要求33或34所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收网络设备发送的通知消息，所述通知消息用于指示发送参考信号的频点；
    在多个频点上，所述终端设备确定执行RLM操作的频点，包括：
    所述终端设备将所述通知消息指示的频点，确定为所述执行RLM操作的频点。
  36. 根据权利要求33至35中任一项所述的方法，其特征在于，在确定的频点上，终端设备执行RLM操作，包括：
    在时间窗内，所述终端设备执行RLM操作。
  37. 根据权利要求36所述的方法，其特征在于，所述在时间窗内，所述终端设备执行RLM操作，包括：
    在所述时间窗结束时，如果未接收到参考信号，所述终端设备则将所述失步计数器加一。
  38. 一种无线通信方法，其特征在于，包括：
    所述终端设备确定时间窗；
    在所述时间窗内，所述终端设备在非授权频段执行无线链路监测RLM操作。
  39. 根据权利要求38所述的方法，其特征在于，所述在时间窗内，所述终端设备在非授权频段执行RLM操作，包括：
    在所述时间窗结束时，如果在所述非授权频段未接收到参考信号，所述终端设备将所述失步计数器加一。
  40. 一种网络设备，其特征在于，包括处理单元和通信单元；其中，
    所述处理单元用于：在非授权频段上执行第一先听后说LBT操作，以用于发送参考信号；
    所述通信单元用于：在所述第一LBT操作失败的情况下，发送指示信息，所述指示信息用于指示所述网络设备未通过所述非授权频段发送所述参考信号。
  41. 一种网络设备，其特征在于，包括接收单元和发送单元；其中，
    所述接收单元用于：接收第一网络设备发送的第一指示信息，所述第一指示信息用于指示所述第一网络设备未通过非授权频段发送参考信号；
    所述发送单元用于：通过授权频段向终端设备发送第二指示信息，所述第二指示信息用于指示所述第一网络设备未通过非授权频段发送所述参考信号。
  42. 一种网络设备，其特征在于，包括通信单元和处理单元；其中，
    所述通信单元用于：接收第一网络设备发送的统计信息，所述统计信息用于指示所述参考信号未被所述第一网络设备通过非授权频段成功发送的次数；
    所述处理单元用于：基于所述统计次数，将服务终端设备的网络设备由所述第一网络设备改为其他网络设备，或者更改所述第一网络设备的主小区PCell或主辅小区PSCell。
  43. 一种终端设备，其特征在于，包括通信单元和处理单元；其中，
    所述通信单元用于：接收指示信息，所述指示信息用于指示第一网络设备未在非授权频段发送参考信号；
    所述处理单元用于：基于所述指示信息，执行无线链路监测RLM操作。
  44. 一种网络设备，其特征在于，包括处理单元和通信单元；其中，
    所述处理单元用于：从多个频点或小区中，网络设备确定目标频点或小区；
    所述通信单元用于：在所述目标频点或小区中，发送参考信号或系统信息。
  45. 一种终端设备，其特征在于，包括处理单元和通信单元；其中，
    所述处理单元用于：在多个频点上，确定执行无线链路监测RLM操作的频点；
    所述处理单元进一步用于：在确定的频点上，执行RLM操作，其中，所述多个频点上的RLM操作采用同一失步计数器和/或同一同步计数器，或，所述通信单元用于：在确定的频点上，接收系统信息。
  46. 一种无线通信设备，其特征在于，包括处理单元用于：
    确定时间窗；
    在所述时间窗内，在非授权频段执行无线链路监测RLM操作。
  47. 一种终端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求25至28和33至39中任一项所述的方法。
  48. 一种网络设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至24和29至32中任一项所述的方法。
  49. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至24和29至32中任一项所述的方法。
  50. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求25至28和33至39中任一项所述的方法。
  51. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至24和29至32中任一项所述的方法。
  52. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求25至28和33至39中任一项所述的方法。
  53. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至24和29至32中任一项所述的方法。
  54. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求25至28和33至39中任一项所述的方法。
  55. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至24和29至32中任一项所述的方法。
  56. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求25至28和33至39中任一项所述的方法。
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