WO2021088506A1 - 数据接收方法及装置、存储介质、终端 - Google Patents

数据接收方法及装置、存储介质、终端 Download PDF

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Publication number
WO2021088506A1
WO2021088506A1 PCT/CN2020/114151 CN2020114151W WO2021088506A1 WO 2021088506 A1 WO2021088506 A1 WO 2021088506A1 CN 2020114151 W CN2020114151 W CN 2020114151W WO 2021088506 A1 WO2021088506 A1 WO 2021088506A1
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Prior art keywords
pdcch
data receiving
receiving method
fixed frame
frame period
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PCT/CN2020/114151
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English (en)
French (fr)
Inventor
周化雨
沈兴亚
潘振岗
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展讯通信（上海）有限公司
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Priority to US17/775,455 priority Critical patent/US20220400516A1/en
Publication of WO2021088506A1 publication Critical patent/WO2021088506A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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

Definitions

  • the present invention relates to the field of wireless communication technology, in particular to a data receiving method and device, storage medium, and terminal.
  • the 3rd Generation Partnership Project (the 3rd Generation Partnership Project, referred to as 3GPP) standards organization is studying the fifth-generation mobile communications (The Fifth-Generation mobile communications, referred to as 5G) New Radio (referred to as NR, also known as the new air interface) system.
  • 5G Fifth-Generation mobile communications
  • NR New Radio
  • the base station such as gNB
  • the base station can perform Listen-Before-Talk (LBT) or Channel Access Assessment (CAA) or Sensing Channel (Sensing Channel). channel) to evaluate whether the channel is idle or busy.
  • LBT Listen-Before-Talk
  • CAA Channel Access Assessment
  • Sensing Channel Sensing Channel
  • channel to evaluate whether the channel is idle or busy.
  • the base station and/or UE can obtain channel occupancy (Channel Occupancy, CO) or channel access within the channel occupancy time (Channel Occupancy Time, COT), which is also called the channel initiated by the base station Occupied.
  • CO channel occupancy
  • COT Channel occupancy time
  • a base station can send channel occupation related information through a group common PDCCH (Group Common PDCCH, GC-PDCCH for short). That is to say, when the base station obtains the channel occupation, it can notify the User Equipment (UE) that the base station has obtained the channel occupation through the GC-PDCCH, and the UE can perform uplink transmission or downlink reception within the channel occupation time.
  • a group common PDCCH Group Common PDCCH, GC-PDCCH for short.
  • the UE may not successfully detect the GC-PDCCH due to poor channel quality.
  • the prior art does not consider how to find the channel occupation when the UE does not detect the GC-PDCCH in the unlicensed frequency (unlicensed frequency, also known as the unlicensed frequency band), so as to improve the probability of the UE's uplink transmission or downlink reception .
  • unlicensed frequency also known as the unlicensed frequency band
  • the technical problem solved by the present invention is how to perform subsequent processing in an unlicensed frequency band to improve the channel occupancy probability of the UE.
  • an embodiment of the present invention provides a data receiving method, including: detecting a downlink signal in a fixed frame period; if the downlink signal is successfully detected in the fixed frame period, it is determined that the Uplink transmission or downlink reception is performed within a fixed frame period.
  • the downlink signal is a downlink control signal.
  • the downlink signal includes one or more of the following: PDCCH, SSB, and PBCH.
  • the uplink transmission includes one or more of the following: PUCCH transmission, CG-PUSCH transmission, periodic SRS transmission, semi-continuous SRS transmission, PRACH transmission, and autonomous uplink transmission.
  • the downlink reception includes one or more of the following: CSI-RS reception, and semi-persistent scheduled PDSCH reception.
  • the determining that the uplink transmission can be performed within the fixed frame period refers to using high-priority channel sensing or high-priority channel evaluation or high-priority LBT before the uplink transmission.
  • the determining that the uplink transmission can be performed within the fixed frame period refers to performing uplink transmission when the channel is idle for the first duration or performing uplink transmission without listening to the channel.
  • the downlink signal is a PDCCH
  • the downlink received bandwidth is located in the LBT bandwidth or LBT subband where the PDCCH is located; or, the downlink received bandwidth is located in the LBT of the control resource set to which the PDCCH belongs Bandwidth or LBT subband.
  • the downlink signal is a PDCCH
  • the scrambling of the PDCCH is selected from: C-RNTI, SI-RNTI, P-RNTI, RA-RNTI, and TC-RNTI.
  • the downlink signal is a PDCCH
  • the PDCCH is a PDCCH that carries a paging indicator.
  • the downlink signal is a paging PDCCH or OSI PDCCH
  • the monitoring timing of the paging PDCCH or the number of monitoring timings of the OSI PDCCH is S; where S is the number of SSBs that are actually sent as indicated by the base station. Or, S is the number of SSBs in the subset of the set of SSBs that are actually sent as indicated by the base station, and S is an integer.
  • the subset of the set of SSBs that are actually sent is a set formed by non-quasi-co-sited SSBs.
  • the start time of the uplink transmission and the start time of the fixed frame period have a time interval; or, the start time of the downlink reception and the start time of the fixed frame period have a time interval.
  • the start time of the uplink transmission and the first GC-PDCCH have a time interval; or the start time of the downlink reception and the first GC-PDCCH have a time interval; wherein, the first GC-PDCCH GC-PDCCH refers to the GC-PDCCH closest to the start time.
  • the time interval is predefined or configured by the base station.
  • the downlink signal is a PDCCH
  • the successful detection of the downlink signal refers to passing the CRC check of the PDCCH.
  • the downlink signal is an SSB
  • the downlink received bandwidth is located in the LBT bandwidth or LBT subband where the SSB is located; or, the downlink received bandwidth is located in the LBT bandwidth of the bandwidth part to which the SSB belongs Or in the LBT subband.
  • the successful detection of the downlink signal refers to the user equipment determining that the base station sends the SSB.
  • the downlink signal is a PBCH
  • the downlink received bandwidth is located in the LBT bandwidth or LBT subband where the PBCH is located; or, the downlink received bandwidth is located in the LBT bandwidth or the LBT subband of the bandwidth part of the PBCH. In the LBT subband.
  • the successful detection of the downlink signal refers to passing the CRC check of the PBCH.
  • the downlink signal is SSB or PBCH
  • the monitoring quantity of the SSB or PBCH is S; where S is the number of SSBs to be sent as indicated by the base station, or S is the actual SSB to be sent as indicated by the base station
  • S is an integer.
  • the subset of the set of SSBs that are actually sent is a set formed by non-quasi-co-sited SSBs.
  • the data receiving method further includes: when the PBCH is successfully detected, using the SSB where the PBCH is located as a measurement sample for radio resource management measurement and/or radio link monitoring measurement.
  • the data receiving method further includes: when the PBCH is successfully detected, using the SSB where the PBCH is located as a synchronization sample for wireless link monitoring and measurement.
  • determining that the uplink transmission or downlink reception can be performed in the fixed frame period includes: if the downlink signal is not detected in the fixed frame period GC-PDCCH is detected, but other downlink signals except GC-PDCCH are successfully detected, then it is determined that uplink transmission or downlink reception can be performed within the fixed frame period.
  • determining that the uplink transmission or downlink reception can be performed in the fixed frame period includes: if the downlink signal is detected in the fixed frame period When the GC-PDCCH is reached, it is determined that the uplink transmission or the downlink reception can be performed within the fixed frame period.
  • the GC-PDCCH is a GC-PDCCH in an idle state.
  • the configuration information of the GC-PDCCH is carried by SIB1.
  • control resource set associated with the GC-PDCCH is CORESET0 by default.
  • the GC-PDCCH carries a paging indicator.
  • the GC-PDCCH in the idle state is monitored.
  • an embodiment of the present invention also provides a data receiving device, including: a detection module, configured to detect a downlink signal in a fixed frame period; a determining module, if the detection module is successfully detected in the fixed frame period For downlink signals, the determining module is used to determine that uplink transmission or downlink reception can be performed within the fixed frame period.
  • an embodiment of the present invention further provides a storage medium having computer instructions stored thereon, and the computer instructions execute the steps of the above method when the computer instructions are executed.
  • an embodiment of the present invention also provides a terminal, including a memory and a processor, the memory stores computer instructions that can run on the processor, and when the processor runs the computer instructions Perform the steps of the above method.
  • the embodiment of the present invention provides a data receiving method, including: detecting a downlink signal in a fixed frame period; if the downlink signal is successfully detected in the fixed frame period, it is determined that the uplink signal can be performed in the fixed frame period. Send or receive downlink.
  • a data receiving method including: detecting a downlink signal in a fixed frame period; if the downlink signal is successfully detected in the fixed frame period, it is determined that the uplink signal can be performed in the fixed frame period.
  • Send or receive downlink Through the technical solution provided by the embodiment of the present invention, after the UE successfully detects the downlink signal, it can be determined that the UE can perform uplink transmission or downlink reception within the fixed frame period of the downlink signal, which provides a way for the UE to quickly seize the unlicensed frequency band. This feasible solution is beneficial to increase the probability of successful channel occupation for the terminal to obtain the unlicensed frequency band.
  • the uplink transmission includes one or more of the following: PUCCH transmission, CG-PUSCH transmission, periodic SRS transmission, semi-persistent SRS transmission, PRACH transmission, and autonomous uplink transmission.
  • PUCCH transmission includes one or more of the following: PUCCH transmission, CG-PUSCH transmission, periodic SRS transmission, semi-persistent SRS transmission, PRACH transmission, and autonomous uplink transmission.
  • the embodiment of the present invention enables the UE to upload periodic uplink data after successfully detecting the downlink signal, and further provides a feasible solution for the UE to use an unlicensed frequency band.
  • the determination that the uplink transmission can be performed within the fixed frame period refers to that the UE uses high-priority channel sensing or channel assessment or LBT before uplink transmission, or the UE uses the highest priority channel before uplink transmission Channel listening or channel assessment or LBT.
  • the embodiment of the present invention allows the UE to use high-priority channel sensing or channel assessment or LBT before uplink transmission, which further provides the possibility for the UE to obtain an unlicensed channel, which is beneficial to improve the uplink transmission probability.
  • FIG. 1 is a schematic flowchart of a data receiving method according to an embodiment of the present invention
  • Fig. 2 is a schematic structural diagram of a data receiving device according to an embodiment of the present invention.
  • synchronization signals and broadcast channels are transmitted in the form of synchronization signal blocks, and the function of beam sweeping is introduced.
  • the primary synchronization signal Primary Synchronization Signal, referred to as PSS
  • the secondary synchronization signal Secondary Synchronization Signal, referred to as SSS
  • the physical broadcast channel Physical Broadcast Channel, referred to as PBCH
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcast Channel
  • Each synchronization signal block corresponds to a predetermined time domain position. This time domain position can also be referred to as a candidate synchronization signal block.
  • the synchronization signal block can be regarded as the resource of the beam (analog domain) in the beam sweeping process. Multiple synchronization signal blocks form a synchronization signal burst (SS-burst).
  • the synchronization signal burst can be regarded as a relatively concentrated resource containing multiple beams. Multiple synchronization signal bursts form a synchronization signal burst set (synchronization signal burst set).
  • the synchronization signal block is repeatedly sent on different beams to complete the beam scanning process. Through beam scanning training, the user equipment can determine on which beam the strongest signal is received.
  • RMSI Remaining Minimum System Information
  • SIB1 that is, System Information Block 1
  • MIB master information block
  • RMSI can also be called SIB1.
  • the RMSI is carried in the PDSCH, and the PDSCH is scheduled through the Physical Downlink Control Channel (PDCCH).
  • PDCCH Physical Downlink Control Channel
  • the PDSCH that carries RMSI is generally called RMSI PDSCH, and the PDCCH that schedules RMSI PDSCH is generally called RMSI PDCCH.
  • the search space set (search space set) where the RMSI PDCCH (or SIB1 PDCCH, or Type0-PDCCH) is located is generally called the Type0-PDCCH search space set or the Type0-PDCCH common search space set (common search space set). Generally, it is configured by MIB, or configured by radio resource control (Radio Resource Control, RRC for short) in situations such as handover.
  • RRC Radio Resource Control
  • the identification number (Identity, ID for short) corresponding to the Type0-PDCCH search space set is 0, so it can also be called search space set 0 (search space set 0), and the bound CORESET is Called CORESET 0.
  • other public search spaces or public search space sets such as Other System Information (OSI), PDCCH search space set (Type0A-PDCCH search space set), random access response ( Random Access Response, RAR for short) PDCCH search space set (Type1-PDCCH search space set), paging PDCCH search space set (Type2-PDCCH search space set), etc., can be the same as search space set 0 by default .
  • OSI System Information
  • PDCCH search space set Type0A-PDCCH search space set
  • random access response Random Access Response
  • PDCCH search space set Type1-PDCCH search space set
  • paging PDCCH search space set Type2-PDCCH search space set
  • the above-mentioned public search space or public search space set can be reconfigured.
  • the RMSI PDCCH monitoring timing is related to the synchronization signal block.
  • the UE obtains this association relationship according to the RMSI PDCCH monitoring timing table.
  • the UE searches for a certain synchronization signal block, and the UE determines the time domain position of the RMSI PDCCH associated with the synchronization signal block according to the row index of the table indicated by the PBCH (the starting symbol index or the first symbol index) ), the RMSI PDCCH can be detected, and the RMSI PDSCH can be received and decoded according to the RMSI PDCCH scheduling.
  • the UE decodes the RMSI PDCCH, obtains multiple bits of time domain resource allocation, and searches a predefined table based on these bits to obtain the start symbol index (or number) of the RMSI PDSCH and the symbol length (or duration) (duration)).
  • the search space set includes the PDCCH monitoring time, search space type and other properties.
  • the search space set is generally bound to a control resource set (Control Resource Set, CORESET for short), and CORESET includes properties such as frequency domain resources and duration of the PDCCH.
  • its corresponding paging occasion (Paging Occasion, PO for short) consists of multiple paging PDCCH monitoring occasions.
  • the paging PDCCH can be sent by sweeping the beam like the synchronization signal block.
  • the paging PDCCH monitoring opportunity corresponds to the synchronization signal block one-to-one, that is, in the PO, the Kth paging PDCCH monitoring opportunity corresponds to the Kth synchronization signal block, and K is an integer.
  • the UE is a UE that supports a bandwidth of 100 MHz.
  • the UE When the UE initially accesses, it blindly detects the PSS/SSS/PBCH in the synchronization signal block to obtain the MIB and time index information carried in the PBCH.
  • the UE obtains the configuration of CORESET (can be called CORESET0) and search space set (can be called search space set 0) to which the PDCCH scheduling SIB1 (or RMSI) belongs through the information in the MIB, and further, the UE can monitor and schedule the PDSCH carrying SIB1 Type0-PDCCH, and decode SIB1.
  • the maximum bandwidth of CORESET0 is implicitly defined in the protocol. Furthermore, the protocol stipulates that the frequency domain resources of the PDSCH carrying SIB1 are within the bandwidth (PRB) of CORESET0, so the maximum bandwidth of the PDSCH carrying SIB1 is also implicitly defined in the protocol.
  • synchronization signal blocks need to be defined so that the user equipment can detect the NR unlicensed spectrum cell in the cell search.
  • the base station needs to perform LBT before sending the Discovery Reference Signal (DRS) or synchronization signal block. Only after monitoring that the channel is idle, the DRS or synchronization signal block is sent. Otherwise, after a certain period of time, the base station performs LBT again. The DRS or synchronization signal block is sent within a certain sending window.
  • DRS Discovery Reference Signal
  • the sending window can be agreed upon by the base station and the UE, or it can be RRC signaling through the discovery reference signal measurement timing configuration (Discovery reference Signal Measurement Timing Configuration, abbreviated as “Discovery Reference Signal Measurement Timing Configuration”).
  • DMTC discovery reference Signal Measurement Timing Configuration
  • SMTC Synchronization Measurement Timing Configuration
  • the base station may also need to perform LBT before sending the RMSI. Only when the channel is detected to be free, the base station will send the RMSI. Otherwise, after a certain period of time, the base station will perform LBT again.
  • the RMSI is sent within a certain sending window.
  • the sending window can be agreed upon by the base station and the UE, or configured by MIB or RRC signaling. Due to the need for LBT, the RMSI needs to be shifted backward for a certain amount of time. In order to support the backward shifting characteristics of the RMSI on the unlicensed spectrum, the RMSI needs to have multiple predefined time-domain positions.
  • the base station obtains a transmission opportunity (Transmission Opportunity, TXOP) through LBT, and sends an initial signal to tell the UE that the base station has obtained a transmission opportunity.
  • TXOP Transmission Opportunity
  • the UE successfully detects the initial signal (initial signal), knows that the base station has obtained a transmission opportunity, and starts a series of actions, such as monitoring the PDCCH.
  • the initial signal can also be called a preamble (Preamble) or a wake-up signal (Wake-Up Signal, WUS for short).
  • the UE detects the initial signal by default within the active time (active time), and only starts to monitor the PDCCH when the initial signal is detected. In this way, the initial signal has a power saving function. Therefore, it can also be called a power saving signal (Power Saving Signal).
  • COT includes the duration of the channel occupied by the base station (such as a few milliseconds, or several time slots, etc.), the format of the time slot within the duration (such as uplink, downlink, and flexible symbol configuration), and the available LBT sub-channels within the duration.
  • the LBT subband may also be referred to as a channel, or sub-channel (sub-channel), or LBT subband, or LBT bandwidth (LBT bandwidth), or RB set (RB set).
  • the base station can perform LBT or CAA to obtain channel occupancy. After obtaining the channel occupation, the base station can issue a downlink signal.
  • the downlink signals that the UE can detect may be different. If the UE detects a downlink signal in the FFP, how to effectively use the detected downlink signal, the prior art has not yet provided a solution.
  • the embodiment of the present invention provides a data receiving method, including: detecting a downlink signal in a fixed frame period; if the downlink signal is successfully detected in the fixed frame period, it is determined that the uplink signal can be performed in the fixed frame period. Send or receive downlink.
  • the UE after the UE successfully detects the downlink signal, it can be determined that the UE can perform uplink transmission or downlink reception within the fixed frame period of the downlink signal, which provides a way for the UE to quickly seize the unlicensed frequency band.
  • This feasible solution is beneficial to increase the probability of successful channel occupation for the terminal to obtain the unlicensed frequency band.
  • the technical solutions provided by the embodiments of the present invention are also applicable to different network architectures, including but not limited to a relay network architecture, a dual-link network architecture, and a vehicle networking communication architecture.
  • the base station (Base Station, BS for short) in the embodiment of the present invention may also be referred to as base station equipment, and is a device deployed on a wireless access network to provide wireless communication functions.
  • devices that provide base station functions in a 2G network include a base transceiver station (Base Transceiver Station, BTS for short) and a base station controller (Base Station Controller, BSC for short).
  • BTS Base Transceiver Station
  • BSC Base Station Controller
  • the equipment that provides the base station function in the 3G network includes a NodeB (NodeB) and a Radio Network Controller (Radio Network Controller, RNC for short).
  • the equipment that provides the base station function in the 4G network includes an evolved NodeB (evolved NodeB, eNB for short).
  • a device that provides a base station function is an access point (Access Point, AP for short).
  • the equipment that provides base station functions in 5G New Radio (NR) includes continuously evolving Node B (gNB), and the base station also refers to equipment that provides base station functions in a new communication system in the future.
  • the terminal in the embodiment of the present invention may refer to various forms of user equipment (User Equipment, UE for short), access terminal, user unit, user station, mobile station, mobile station ( Mobile Station, MS for short), remote station, remote terminal, mobile equipment, user terminal, terminal equipment (terminal equipment), wireless communication equipment, user agent or user device.
  • user equipment User Equipment, UE for short
  • access terminal user unit
  • user station mobile station
  • mobile station Mobile Station, MS for short
  • remote station remote terminal
  • mobile equipment user terminal
  • terminal equipment terminal equipment
  • terminal equipment terminal equipment
  • terminal equipment wireless communication equipment
  • the terminal device can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), Handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or future evolution of the public land mobile network (Public Land Mobile Network, referred to as The terminal equipment in the PLMN) is not limited in the embodiment of the present invention.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the “plurality” in the embodiments of the present invention refers to two or more than two.
  • connection appearing in the embodiment of the present invention refers to various connection modes such as direct connection or indirect connection to realize communication between devices, which is not limited in the embodiment of the present invention.
  • Fig. 1 is a schematic flowchart of a data receiving method according to an embodiment of the present invention.
  • the data receiving method may be executed by the UE, for example, executed by the NR UE.
  • the data receiving method may include the following steps:
  • Step S101 detecting a downlink signal in a fixed frame period
  • Step S102 If the downlink signal is successfully detected in the fixed frame period, it is determined that the uplink transmission or the downlink reception can be performed in the fixed frame period.
  • the base station For frame-based equipment (FBE) operations, generally, the base station performs LBT at the end of a fixed frame period (Fixed Frame Period, FFP) to obtain channel occupancy within a fixed frame period .
  • FFP Fixed Frame Period
  • the UE can still obtain the channel occupancy status by detecting the downlink signal (including the downlink channel) in the fixed frame period.
  • the base station can perform LBT.
  • the base station When the base station performs LBT within a period of time at the end of a fixed frame period (Fixed Frame Period, FFP for short) and obtains channel occupancy, the base station can send channel occupancy related information to the UE.
  • a fixed frame period Fixed Frame Period, FFP for short
  • the UE may detect a downlink signal in the FFP.
  • the UE can detect the downlink signal in the FFP of the unlicensed frequency band. If the UE successfully detects the GC-PDCCH at the beginning of the FFP, it can obtain information about the channel occupied by the base station from the downlink control information.
  • the downlink signal refers to a downlink control signal.
  • the downlink signal may include one or more of the following: PDCCH signal, SSB, and PBCH signal.
  • step S102 if the UE successfully detects the downlink signal in the fixed frame period, the UE determines that it can perform uplink transmission (uplink transmission, also known as uplink transmission) or perform downlink reception in the fixed frame period.
  • uplink transmission also known as uplink transmission
  • Determining that the UE can perform uplink transmission or downlink reception within the fixed frame period is equivalent to confirming that the base station obtains channel occupation and shares it with the UE.
  • the UE may determine that it can perform uplink transmission in the fixed frame period Or for downlink reception. Determining that the UE can perform uplink transmission or downlink reception within the fixed frame period is equivalent to confirming that the base station obtains channel occupation and shares it with the UE.
  • the uplink transmission may include one or more of the following: physical uplink control channel (Physical Uplink Control Channel, PUCCH) transmission, configured Grant Physical Uplink Shared Channel (CG-PUSCH) , Periodic Sounding Reference Signal (Sounding Reference Signal, SRS), semi-persistent SRS, Physical Random Access Channel (PRACH), and autonomous uplink transmission (autonomous uplink transmission).
  • PUCCH Physical Uplink Control Channel
  • CG-PUSCH configured Grant Physical Uplink Shared Channel
  • SRS Periodic Sounding Reference Signal
  • SRS Sounding Reference Signal
  • PRACH Physical Random Access Channel
  • autonomous uplink transmission autonomous uplink transmission
  • the uplink transmission is not limited to the above-mentioned situation, and may include other configured or periodic uplink transmission.
  • the downlink reception may include at least one or more of the following: channel state information reference signal (Channel State Information Reference Signal, CSI-RS) reception or semi-persistent scheduling PDSCH (Semi-Persistent Scheduling PDSCH, SPS-PDSCH) receive.
  • CSI-RS Channel State Information Reference Signal
  • SPS-PDSCH semi-persistent scheduling PDSCH
  • the downlink reception is not limited to the above-mentioned situation, and may include other configured or periodic downlink reception.
  • the UE uses high-priority channel sensing before uplink transmission; or, the UE uses high-priority channel evaluation before uplink transmission; or, the UE uses high-priority LBT before uplink transmission; or, The UE uses the highest priority channel sensing or the highest priority channel evaluation or the highest priority LBT before uplink transmission. This can increase the probability of UE uplink transmission.
  • determining that the UE can perform uplink transmission within the fixed frame period refers to performing uplink transmission when the channel is idle for the first duration or performing uplink transmission without listening to the channel.
  • the first duration refers to a duration with a relatively small parameter value among multiple durations.
  • the parameter value is 9 microseconds, 16 microseconds, or 25 microseconds.
  • the first duration may be 9 microseconds or 16 microseconds.
  • the UE selects a smaller listening channel duration for channel listening or channel evaluation or LBT before uplink transmission. Or, the UE does not perform channel sensing or channel assessment or LBT before uplink transmission. This can increase the probability of UE uplink transmission.
  • the UE may perform uplink transmission without listening to the channel.
  • T1 can be 16.
  • T1 can be 16, and T2 can be 9.
  • the downlink signal is a PDCCH.
  • the downlink received bandwidth is located in the LBT bandwidth or LBT subband where the PDCCH is located; or, the downlink received bandwidth is located in In the LBT bandwidth or LBT subband of the control resource set to which the PDCCH belongs.
  • the downlink signal is the PDCCH
  • the cyclic redundancy check (Cyclic Redundancy Check, referred to as CRC) of the PDCCH may use the Cell-Radio Network Temporary Identity (C-RNTI), System Information RNTI (System Information RNTI, SI-RNTI), Paging RNTI (paging RNTI, P-RNTI), Random Access RNTI (RA-RNTI), TC-RNTI (Temporary C-RNTI) Wait for scrambling.
  • C-RNTI Cell-Radio Network Temporary Identity
  • SI-RNTI System Information RNTI
  • Paging RNTI paging RNTI, P-RNTI
  • Random Access RNTI RA-RNTI
  • TC-RNTI Temporary C-RNTI
  • the PDCCH may be a PDCCH carrying a paging indicator.
  • the paging indicator (paging indicator) is used to trigger a group or one UE to monitor the paging PDCCH on the current paging occasion (paging occasion, PO for short) or subsequent PO.
  • the subsequent PO can be understood as the most recent PO after the current moment.
  • the subsequent PO can also be understood as any PO after the current moment.
  • the downlink signal is a paging PDCCH or an OSI PDCCH
  • the monitoring timing of the paging PDCCH or the number of monitoring timings of the OSI PDCCH is S.
  • S is the number of SSBs that are actually sent as indicated by the base station, or S is the number of SSBs in the subset of the set of SSBs that are actually sent as indicated by the base station, and S is an integer.
  • the subset of the set of actually transmitted SSBs may be a set formed by non-Quasi Co-Located (non-QCLed) SSBs.
  • SSBs have a Quasi Co-Located (QCL) relationship within or between transmission windows, and the SSBs that are not quasi-co-located form a subset.
  • QCL Quasi Co-Located
  • the start time of the uplink transmission and the start time of the fixed frame period may have a time interval; or the start time of the downlink reception and the start time of the fixed frame period may have a time interval time interval.
  • the time interval is predefined or configured by the base station.
  • the start time of the uplink transmission and the first GC-PDCCH may have a time interval; or, the start time of the downlink reception and the first GC-PDCCH may have a time interval.
  • the first GC-PDCCH refers to the GC-PDCCH that is closest to the start time of the uplink transmission.
  • the time interval is predefined or configured by the base station.
  • the downlink signal is an SSB
  • the downlink received bandwidth is located in the LBT bandwidth or LBT subband where the SSB is located; or, the downlink received bandwidth is located in the bandwidth part to which the SSB belongs ( Bandwidth Part, BWP for short) LBT bandwidth or LBT subband.
  • the bandwidth part to which the SSB belongs may be an initial active downlink BWP (initial active DL BWP) or a BWP (BWP 0) with a BWP identity (identity, ID for short) of 0.
  • the successful detection of the SSB means that the UE can determine that the base station has sent the SSB.
  • the downlink signal is a PBCH
  • the downlink received bandwidth is located in the LBT bandwidth or LBT subband where the PBCH is located; or, the downlink received bandwidth is located in the LBT of the bandwidth part of the PBCH.
  • the bandwidth part to which the SSB belongs may be an initial active downlink BWP (initial active DL BWP) or a BWP with a BWP ID of 0 (BWP 0).
  • the successful detection of the PBCH refers to the CRC check of the PBCH.
  • the downlink signal may be SSB or PBCH, and the number of monitoring of the SSB or PBCH is S; where S is the number of SSBs actually sent as indicated by the base station, or S is the number indicated by the base station The number of SSBs in the subset of the set of actually sent SSBs, and S is an integer.
  • the subset of the set of actually transmitted SSBs may be a set formed by non-quasi-co-sited SSBs.
  • the UE may use the SSB where the PBCH is located as a measurement sample for radio resource management measurement and/or radio link monitoring measurement.
  • the UE can obtain channel quality information by decoding the PBCH or SSB, and then can use the SSB where the PBCH is located as the measurement result.
  • the UE can use the SSB where the PBCH is located as a measurement synchronization sample to indicate In-sync.
  • the base station can deliver the GC-PDCCH in the idle state, and if the GC-PDCCH in the idle state is detected within the fixed frame period, the idle state UE may determine that the GC-PDCCH in the idle state can be used in the fixed frame period. Uplink transmission or downlink reception within.
  • the configuration information of the GC-PDCCH in the idle state is carried by SIB1.
  • the control resource set associated with the GC-PDCCH in the idle state may be CORESET0 by default.
  • the GC-PDCCH in the idle state may carry a paging indicator.
  • the FFP corresponding to the GC-PDCCH in the idle state includes paging occasion (paging occasion, PO for short) or paging PDCCH monitoring occasion (paging PDCCH monitoring occasion) or sending/receiving RACH process related signals/
  • the UE needs to monitor the GC-PDCCH in the idle state.
  • the channel associated with Msg-1 can be PRACH
  • the channel associated with Msg-2 can be Random Access Response (Random Access Response) PDCCH and/or RAR PDSCH
  • the channel associated with Msg-2 can be PUSCH and/or
  • the channels associated with PUCCH and Msg-4 may be PDCCH and/or PDSCH.
  • the uplink transmission may at least include the transmission of PUCCH, CG-PUSCH, periodic SRS, semi-persistent scheduled SRS, PRACH or autonomous uplink transmission.
  • the downlink receiving may at least include receiving CSI-RS or SPS PDSCH.
  • the base station when the UE is in a connected state (CONNECTED), the base station will configure the GC-PDCCH for the UE at the beginning of the FFP. Once the UE detects the GC-PDCCH at the beginning of the FFP, it can obtain information about the channel occupied by the base station from the downlink control information. If the UE does not detect the GC-PDCCH or the base station does not configure the GC-PDCCH, then when the UE detects other downlink signals except the GC-PDCCH, the following embodiment (Embodiment 1 or Embodiment 2) can be used for subsequent processing.
  • the UE can determine that within the FFP, uplink transmission or downlink reception can occur. Generally, the UE is configured with a PDCCH that needs to be monitored periodically. Even if the UE does not detect the GC-PDCCH or is not configured with the GC-PDCCH, the UE can still obtain the information of the channels in the current FFP already occupied by the base station through the detected PDCCH.
  • the occurrence of the uplink transmission may mean that the UE uses high-priority channel sensing or channel assessment or LBT before uplink transmission.
  • the uplink transmission may occur, or it may mean that the UE uses the highest priority channel sensing or channel assessment or LBT before uplink transmission. This can increase the probability of UE uplink transmission.
  • the occurrence of the uplink transmission may mean that the UE selects a smaller listening channel duration for channel listening or channel assessment or LBT.
  • the listening channel duration can be 16 microseconds ( ⁇ s), 25 ⁇ s, and so on.
  • the listening channel duration may also be referred to as a short frame interval (Short Inter-Frame Space, SIFS for short).
  • SIFS Short Inter-Frame Space
  • the uplink transmission may occur, or it may mean that the UE does not perform channel sensing or channel assessment or LBT. This can increase the probability of UE uplink transmission.
  • the downlink reception needs to satisfy that the downlink reception bandwidth is within the LBT bandwidth or LBT subband (also called LBT channel or LBT subchannel) where the detected PDCCH is located.
  • the downlink reception bandwidth is within the LBT bandwidth or LBT subband where the CORESET to which the detected PDCCH belongs.
  • the detected PDCCH refers to passing the CRC check of the PDCCH.
  • the PDCCH may be C-RNTI scrambled.
  • the PDCCH is a scheduling PDCCH used when the base station performs a unicast service to the UE in the connected state.
  • the PDCCH can also be scrambled by SI-RNTI or P-RNTI or RA-RNTI or TC-RNTI.
  • the PDCCH is the scheduling PDCCH used when the base station broadcasts the UE.
  • the broadcast service can include SIB1 and SIBx. , Paging, Random Access Response (RAR), etc., where SIBx refers to other SIBs except SIB1.
  • the paging PDCCH has additional paging PDCCH monitoring opportunities, so as to expand from the original S monitoring opportunities to S ⁇ X paging PDCCHs.
  • the timing of monitoring, S is specified by the protocol, S is an integer, and X is an integer.
  • the UE may only monitor S paging PDCCH monitoring occasions.
  • S is the number of SSBs that are actually sent as indicated by the base station, or the number of SSBs in a subset of the set of SSBs that are actually sent as indicated by the base station.
  • This subset is a collection of SSBs that are not quasi-co-sited. That is, when the UE monitors the paging PDCCH, the UE may assume that there is no additional PDCCH monitoring opportunity for the paging PDCCH, or the UE may assume that the paging PDCCH has no shift or cyclic shift. It should be noted that the paging PDCCH refers to the PDCCH in which the CRC is scrambled by the P-RNTI.
  • the UE can only monitor S PDCCH monitoring opportunities, where S is the number of SSBs that are actually sent as indicated by the base station, or the number of SSBs in the subset of the set of SSBs that are actually sent as indicated by the base station . This subset is a collection of SSBs that are not quasi-co-sited.
  • the OSI PDCCH refers to the PDCCH whose CRC is scrambled by SI-RNTI.
  • time gap there is a time gap (gap) or time offset (offset) between the start time of the uplink transmission or downlink reception and the start time of the FFP.
  • time interval there is a time interval or time offset between the start time of the uplink transmission or downlink reception and the nearest GC-PDCCH that the UE can monitor.
  • the time interval or time offset is predefined or configured by the base station.
  • the UE determines that within the FFP, uplink transmission or downlink reception can occur. Normally, SSB or PBCH is sent periodically, and the UE knows information such as the period of the SSB or PBCH. Therefore, even if the GC-PDCCH is not detected or the GC-PDCCH is not configured, the UE can obtain the information that the base station has occupied the channel in the current FFP through the detected SSB or PBCH.
  • the occurrence of the uplink transmission may mean that the UE uses high-priority channel sensing or channel assessment or LBT before uplink transmission.
  • the uplink transmission may occur, or it may mean that the UE uses the highest priority channel sensing or channel assessment or LBT before uplink transmission. This can increase the probability of UE uplink transmission.
  • the uplink transmission may occur, or it may mean that the UE selects a smaller listening channel duration for channel listening or channel assessment or LBT.
  • the listening channel duration can be 16 microseconds ( ⁇ s), 25 ⁇ s, and so on.
  • the listening channel duration may also be referred to as a short frame interval (Short Inter-Frame Space, SIFS for short).
  • SIFS Short Inter-Frame Space
  • the uplink transmission may occur, or it may mean that the UE does not perform channel sensing or channel assessment or LBT. This can increase the probability of UE uplink transmission.
  • the downlink reception needs to satisfy that the downlink reception bandwidth is within the LBT bandwidth (also known as the channel) where the detected SSB or PBCH is located, or the downlink reception bandwidth is within the bandwidth part (Bandwidth Part, referred to as BWP) to which the detected SSB or PBCH belongs. ) Is in the LBT bandwidth.
  • LBT bandwidth also known as the channel
  • BWP bandwidth part
  • detecting the SSB means that the UE determines that the SSB has been sent by the base station.
  • Detecting a PBCH means that the CRC check of the PBCH has passed.
  • the UE when the UE detects SSB or PBCH, the UE only monitors S SSBs or PBCHs within S SSBs, where S is the number of SSBs actually sent as indicated by the base station, or is the actual number indicated by the base station.
  • S is the number of SSBs actually sent as indicated by the base station, or is the actual number indicated by the base station.
  • the number of SSBs in the subset of the transmitted SSB set. This subset is a collection of SSBs that are not quasi-co-sited. That is, when the UE detects the SSB or PBCH, the UE can assume that there is no shift or cyclic shift of the SSB or PBCH.
  • the UE may use the SSB where the detected PBCH is located as a measurement sample in RRM measurement and/or RLM measurement.
  • the UE may use the SSB where the detected PBCH is located as an In-Sync sample in the RLM measurement.
  • time interval or a time offset between the start time of the uplink transmission and the start time of the FFP, and there may be a time interval between the start time of the downlink reception and the start time of the FFP Or time offset.
  • the time interval or time offset is predefined or configured by the base station.
  • the base station when the UE is in an idle state (IDLE) or an inactive state (INACTIVE), it is assumed that the base station cannot configure the GC-PDCCH in the idle state to the UE. Under this condition, if the UE in the idle or inactive state does not detect the GC-PDCCH or the base station does not configure the GC-PDCCH, then when the UE detects other downlink signals except the GC-PDCCH, the following embodiments can be used (Embodiment 3 or Embodiment 4) Perform subsequent processing.
  • the UE can determine that within the FFP, uplink transmission or downlink reception can occur.
  • uplink transmission or downlink reception can occur.
  • the PDCCH may be SI-RNTI or P-RNTI or RA-RNTI or TC-RNTI scrambled.
  • the PDCCH is a scheduling PDCCH used by the base station to broadcast services to the UE. Among them, the broadcast service may include SIB1, SIBx, paging, random access response, and so on.
  • the PDCCH may also be a PDCCH that carries a paging indicator (Paging Indicator).
  • a paging indication triggers a group or one UE to monitor the paging PDCCH on the current or subsequent PO.
  • the paging indication PDCCH is an optimized way of paging, which can further group UEs that monitor the same PO, thereby reducing the probability of false alerts.
  • the UE determines that within the FFP, uplink transmission or downlink reception can occur.
  • uplink transmission or downlink reception can occur.
  • the base station when the UE is in an idle state (IDLE) or an inactive state (INACTIVE), it is assumed that the base station can configure the GC-PDCCH in the idle state to the UE. Under this condition, the UE can perform subsequent processing through the following embodiment (Embodiment 5).
  • the UE determines that the uplink transmission or the downlink reception can occur in the FFP.
  • the UE can obtain the configuration information of the GC-PDCCH in the idle state through the SIB1 information.
  • the CORESET associated with the GC-PDCCH in the idle state may be CORESET0 by default.
  • the GC-PDCCH in the idle state may carry a paging indicator. Among them, the paging indication is used to trigger a group or one UE to monitor the paging PDCCH or the PDCCH whose CRC is scrambled by the P-RNTI on the current or subsequent PO.
  • the FFP corresponding to the GC-PDCCH in the idle state includes a paging occasion or a paging PDCCH monitoring opportunity or a signal/channel related to the sending/receiving RACH process (including Msg-1, Msg-2, Msg-3, Msg-4)
  • the UE needs to monitor the GC-PDCCH in the idle state.
  • the channel associated with Msg-1 can be PRACH
  • the channel associated with Msg-2 can be RARPDCCH and/or RAR PDSCH
  • the channel associated with Msg-2 can be PUSCH and/or PUCCH
  • the channel associated with Msg-4 can be It is PDCCH and/or PDSCH.
  • the embodiment of the present invention allows the UE according to the received Other downlink signals determine whether uplink transmission or downlink reception can occur, and provide a feasible technical solution for the UE to perform subsequent data transmission and reception.
  • the UE when the UE is in an idle or inactive state, if the UE receives an idle GC-PDCCH in the FFP, the UE can still determine whether uplink transmission or downlink reception can occur, which provides the UE with a greater probability of obtaining LBT bandwidth. may.
  • Fig. 2 is a schematic structural diagram of a data receiving device according to an embodiment of the present invention.
  • the data receiving apparatus 2 may implement the method and technical solution shown in FIG. 1 and be executed by the UE.
  • the data receiving device 2 may include: a detection module 21, configured to detect a downlink signal in a fixed frame period; a determining module 22, if the downlink signal is successfully detected in the fixed frame period, then The determining module 22 is configured to determine whether uplink transmission or downlink reception can be performed within the fixed frame period.
  • the processor may be a central processing unit (Central Processing Unit, CPU for short), and the processor may also be other general-purpose processors or digital signal processors (DSP for short). , Application Specific Integrated Circuit (ASIC for short), Field Programmable Gate Array (FPGA for short) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be a read-only memory (Read-Only Memory, ROM for short), a programmable read-only memory (Programmable ROM, PROM for short), and an erasable programmable read-only memory (Erasable PROM, EPROM for short). , Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM for short) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM for short), which is used as an external cache.
  • Random Access Memory Random Access Memory
  • static random access memory SRAM for short
  • dynamic random access memory DRAM for short
  • Synchronous DRAM SDRAM for short
  • Double Data Rate SDRAM DDR SDRAM for short
  • Enhanced Synchronous Dynamic Random Access Memory ESDRAM for short
  • Synchronous connection to DRAM SLDRAM for short
  • Direct Rambus RAM DR-RAM for short
  • the foregoing embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-mentioned embodiments may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions or computer programs.
  • the computer instructions or computer programs are loaded or executed on the computer, the processes or functions described in the embodiments of the present invention are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution.
  • the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the disclosed method, device, and system can be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It 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, and may be in 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, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may be separately physically included, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium.
  • the above-mentioned software function unit is stored in a storage medium, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute part of the steps of the method described in each embodiment of the present invention.
  • the aforementioned 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, etc., which can store program codes. Medium.
  • the embodiment of the present invention also discloses a storage medium on which computer instructions are stored, and when the computer instructions are run, the method and technical solution described in the embodiment shown in FIG. 1 are executed.
  • the storage medium may include a computer-readable storage medium such as a non-volatile memory or a non-transitory memory.
  • the computer-readable storage medium may include ROM, RAM, magnetic disk or optical disk, and so on.
  • an embodiment of the present invention also discloses a terminal, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes the above diagram when the computer instructions are executed.
  • 1 shows the technical solution of the method described in the embodiment.
  • the terminal may be an NR UE.

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Abstract

一种数据接收方法及装置、存储介质、终端，所述方法包括：在固定帧周期内检测下行信号；如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。本发明提供的技术方案有利于提高终端抢占信道的成功概率。

Description

数据接收方法及装置、存储介质、终端
本申请要求于2019年11月8日提交中国专利局、申请号为201911097502.X、发明名称为“数据接收方法及装置、存储介质、终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域，具体地涉及一种数据接收方法及装置、存储介质、终端。
背景技术
第三代合作伙伴项目(the 3rd Generation Partnership Project，简称3GPP)标准组织正在研究第五代移动通信(The Fifth-Generation mobile communications，简称5G)新无线(New Radio，简称NR，亦称新空口)系统。
在非授权频谱中，基站(如gNB)和/或UE可以进行先听后说(Listen-Before-Talk，简称LBT)或信道接入评估(Channel Access Assessment，简称CAA)或侦听信道(Sensing channel)，以评估信道是空闲(idle)还是繁忙(busy)。当评估结果满足一定条件时，基站和/或UE可以在信道占用时间(Channel OccupancyTime，简称COT)内，获得信道占用(Channel Occupancy，简称CO)或信道接入，这也称为基站发起的信道占用。
一般来说基站可以通过群组公共PDCCH(Group Common PDCCH，简称GC-PDCCH)发送信道占用相关信息。也就是说，当基站获得信道占用时，可以通过GC-PDCCH通知用户设备(User Equipment，简称UE)基站已经获得了信道占用，UE可以在信道占 用时间内进行上行发送或下行接收。
然而，UE可能由于信道质量差而未成功检测出GC-PDCCH。现有技术并未考虑到在非授权频段(unlicensed frequency，亦称免授权频段)中，当UE未检测出GC-PDCCH时，如何能发现信道占用，以提高UE的上行发送或下行接收的概率。
发明内容
本发明解决的技术问题是在非授权频段中，如何进行后续处理以提高UE的信道占用概率。
为解决上述技术问题，本发明实施例提供一种数据接收方法，包括：在固定帧周期内检测下行信号；如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。
可选的，所述下行信号为下行控制信号。
可选的，所述下行信号包括以下一项或多项：PDCCH、SSB、PBCH。
可选的，所述上行发送包括以下一项或多项：PUCCH传输、CG-PUSCH传输、周期SRS传输、半持续的SRS传输、PRACH传输、自主上行传输。
可选的，所述下行接收包括以下一项或多项：CSI-RS接收、半持续调度的PDSCH接收。
可选的，所述确定能够在所述固定帧周期内进行上行发送指的是在上行发送前使用高优先级的信道侦听或高优先级的信道评估或高优先级的LBT。
可选的，所述确定能够在所述固定帧周期内进行上行发送指的是在第一持续时间的侦听到信道空闲就进行上行发送或不侦听信道就 进行上行发送。
可选的，所述下行信号为PDCCH，所述下行接收的带宽位于所述PDCCH所在的LBT带宽或LBT子带内；或者，所述下行接收的带宽位于所述PDCCH所属的控制资源集的LBT带宽或LBT子带内。
可选的，所述下行信号为PDCCH，所述PDCCH的加扰选自：C-RNTI、SI-RNTI、P-RNTI、RA-RNTI、TC-RNTI。
可选的，所述下行信号为PDCCH，所述PDCCH是承载寻呼指示的PDCCH。
可选的，所述下行信号为寻呼PDCCH或OSI PDCCH，所述寻呼PDCCH的监听时机或所述OSI PDCCH的监听时机的数量为S；其中，S为基站指示的真正发送的SSB的个数，或者，S为所述基站指示的真正发送的SSB的集合的子集内的SSB个数，S为整数。
可选的，所述真正发送的SSB的集合的子集为非准共站址的SSB形成的集合。
可选的，所述上行发送的起始时间与所述固定帧周期的起始时间具有时间间隔；或者，所述下行接收的起始时间与所述固定帧周期的起始时间具有时间间隔。
可选的，所述上行发送的起始时间与第一GC-PDCCH具有时间间隔；或者，所述下行接收的起始时间与所述第一GC-PDCCH具有时间间隔；其中，所述第一GC-PDCCH指的是与所述起始时间距离最近的GC-PDCCH。
可选的，所述时间间隔是预定义的或者是基站配置的。
可选的，所述下行信号为PDCCH，所述成功检测到所述下行信号指的是通过所述PDCCH的CRC校验。
可选的，所述下行信号为SSB，所述下行接收的带宽位于所述SSB所在的LBT带宽或LBT子带内；或者，所述下行接收的带宽位 于所述SSB所属的带宽部分的LBT带宽或LBT子带内。
可选的，所述成功检测到所述下行信号指的是用户设备确定基站发出所述SSB。
可选的，所述下行信号为PBCH，所述下行接收的带宽位于所述PBCH所在的LBT带宽或LBT子带内；或者，所述下行接收的带宽位于所述PBCH所属带宽部分的LBT带宽或LBT子带内。
可选的，所述成功检测到所述下行信号指的是通过所述PBCH的CRC校验。
可选的，所述下行信号为SSB或PBCH，所述SSB或PBCH的监听数量为S；其中，S为基站指示的SSB的发送个数，或者，S为所述基站指示的真正发送的SSB的集合的子集内的SSB个数，S为整数。
可选的，所述真正发送的SSB的集合的子集为非准共站址的SSB形成的集合。
可选的，所述数据接收方法还包括：当成功检测到PBCH时，将所述PBCH所在SSB作为无线资源管理测量和/或无线链路监听测量的测量样本。
可选的，所述数据接收方法还包括：当成功检测到PBCH时，将所述PBCH所在SSB作为无线链路监听测量的同步样本。
可选的，所述如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收包括：如果在所述固定帧周期内未检测到GC-PDCCH，但成功检测到除GC-PDCCH以外的其他下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。
可选的，所述如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收包 括：如果在所述固定帧周期内检测到GC-PDCCH，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。
可选的，所述GC-PDCCH是空闲态下的GC-PDCCH。
可选的，所述GC-PDCCH的配置信息是由SIB1携带的。
可选的，所述GC-PDCCH关联的控制资源集默认是CORESET0。
可选的，所述GC-PDCCH承载寻呼指示。
可选的，当所述空闲态下的GC-PDCCH对应的固定帧周期包含寻呼时机或寻呼PDCCH监听时机或随机接入过程相关信号时，监听所述空闲态下的GC-PDCCH。
为解决上述技术问题，本发明实施例还提供一种数据接收装置，包括：检测模块，用于在固定帧周期内检测下行信号；确定模块，如果在所述固定帧周期内成功检测到所述下行信号，则所述确定模块用于确定能够在所述固定帧周期内进行上行发送或进行下行接收。
为解决上述技术问题，本发明实施例还提供一种存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述方法的步骤。
为解决上述技术问题，本发明实施例还提供一种终端，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
本发明实施例提供一种数据接收方法，包括：在固定帧周期内检测下行信号；如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。通过本发明实施例提供的技术方案，在UE成功检测到下行信号之后，可以确定UE能够在该下行信号所在的固定帧周期内进行上行发送或下行接收，为UE快速抢占非授权频段提供了一种可行方案，有利于提高终端获得非授权频段的信道占用成功概率。
进一步，所述上行发送包括以下一项或多项：PUCCH传输、CG-PUSCH传输、周期SRS传输、半持续SRS传输、PRACH传输、自主上行传输。本发明实施例使得UE在成功检测到下行信号之后，能够上传周期性的上行数据，进一步为UE使用非授权频段提供可行方案。
进一步，所述确定能够在所述固定帧周期内进行上行发送指的是UE在上行发送前使用高优先级的信道侦听或信道评估或LBT，或者，UE在上行发送前使用最高优先级的信道侦听或信道评估或LBT。本发明实施例允许UE在上行发送前使用高优先级的信道侦听或信道评估或LBT，进一步为UE获得非授权信道提供可能，有利于提高上行发送概率。
附图说明
图1是本发明实施例的一种数据接收方法的流程示意图；
图2是本发明实施例的一种数据接收装置的结构示意图。
具体实施方式
如背景技术所言，在UE未检测到GC-PDCCH，UE如何确定信道占用，已成为一个亟需解决的技术问题。
在NR(5G系统)版本15(Release 15，简称Rel-15)中，同步信号、广播信道是以同步信号块的方式发送的，并且引入了扫波束的功能。其中，主同步信号(Primary Synchronization Signal，简称PSS)、辅同步信号(Secondary Synchronization Signal，简称SSS)和物理广播信道(Physical Broadcast Channel，简称PBCH)在同步信号块(SS/PBCH block，简称SSB)中。
每个同步信号块对应一个预先确定的时域位置。该时域位置又可以称为候选的同步信号块。同步信号块可以看作是扫波束(beam  sweeping)过程中的波束(模拟域)的资源。多个同步信号块组成同步信号突发(SS-burst)。同步信号突发可以看作是包含多个波束的一块相对集中的资源。多个同步信号突发组成同步信号突发集合(synchronization signal burst set)。同步信号块在不同波束上重复发送，完成波束扫描过程。通过波束扫描的训练，用户设备可以确定在哪个波束上收到的信号最强。
进一步，Rel-15 NR中的剩余最小系统信息(Remaining Minimum System Information，简称RMSI，也可以称为SIB1，即System Information Block 1)相当于LTE中的SIB1，其包括除了主信息块(Master Information Block，简称MIB)外的主要的系统信息。RMSI也可以称为SIB1。RMSI是在PDSCH里承载的，而PDSCH是通过物理下行控制信道(Physical Downlink Control Channel，简称PDCCH)调度的。承载RMSI的PDSCH一般被称为RMSI PDSCH，调度RMSI PDSCH的PDCCH一般被称为RMSI PDCCH。
RMSI PDCCH(或称SIB1 PDCCH，或称Type0-PDCCH)所在的搜索空间集合(search space set)一般被称为Type0-PDCCH搜索空间集合或Type0-PDCCH公共搜索空间集合(common search space set)。一般地，由MIB配置的，或者在切换等情形下由无线资源控制(Radio Resource Control，简称RRC)配置的。
一般地，Type0-PDCCH搜索空间集合对应的识别号(Identity，简称ID)为0，因此也可以被称为搜索空间集合0(search space 0，即search space set 0)，所绑定的CORESET被称为CORESET 0。除了RMSI PDCCH的搜索空间集合，其他的公共搜索空间或公共搜索空间集合，如其它系统信息(Other System Information，简称OSI)PDCCH的搜索空间集合(Type0A-PDCCH搜索空间集合)、随机接入响应(Random Access Response，简称RAR)PDCCH的搜索空间集合(Type1-PDCCH搜索空间集合)、寻呼(paging)PDCCH的搜索空间集合(Type2-PDCCH搜索空间集合)等，可以默认地与搜索 空间集合0相同。一般地，上述公共搜索空间或公共搜索空间集合都可以被重新配置。
RMSI PDCCH监听时机与同步信号块有关联关系。UE根据RMSI PDCCH监听时机表格获得此关联关系。在初始接入过程中，UE搜索到某个同步信号块，UE根据PBCH指示的表格的行索引，确定该同步信号块关联的RMSI PDCCH的时域位置(起始符号索引或第一个符号索引)，就能够检测出RMSI PDCCH，并根据RMSI PDCCH调度来接收和解码RMSI PDSCH。
在Rel-15 NR中，UE解码RMSI PDCCH，获取时域资源分配的多个比特，根据这些比特查找预定义的表格来获得RMSI PDSCH的起始符号索引(或编号)和符号长度(或持续时间(duration))。
一般地，搜索空间集合包含PDCCH的监听时机、搜索空间类型等性质。搜索空间集合一般会绑定控制资源集合(Control Resource Set，简称CORESET)，并且，CORESET包含PDCCH的频域资源和持续时间等性质。
在Rel-15 NR中，对于给定的UE，其对应的寻呼时机(Paging Occasion，简称PO)由多个寻呼PDCCH监听时机组成。在PO内，寻呼PDCCH可以跟同步信号块一样通过扫波束的方式发送。在PO内，寻呼PDCCH监听时机和同步信号块一一对应，即在PO内，第K个寻呼PDCCH监听时机对应第K个同步信号块，K为整数。
在Rel-15NR中，一般地，UE是支持100MHz带宽的UE。UE在初始接入时，盲检同步信号块中的PSS/SSS/PBCH，获得PBCH内携带的MIB和时间索引信息。UE通过MIB中的信息获得调度SIB1(或RMSI)的PDCCH所属的CORESET(可以称为CORESET0)和搜索空间集合(可以称为搜索空间集合0)的配置，进而，UE可以监听调度承载SIB1的PDSCH的Type0-PDCCH，并解码出SIB1。由于PBCH内通过表格来设置CORESET0的带宽，所以CORESET0的最大带宽在协议中被隐式地定义了。进一步来说，协议规定承载 SIB1的PDSCH的频域资源在CORESET0的带宽(PRB)内，因此承载SIB1的PDSCH的最大带宽在协议中也被隐式地定义了。
在NR的非授权频谱上，需要定义同步信号块，以便用户设备能够在小区搜索中检测到NR非授权频谱小区。在NR非授权频谱上，基站发送发现参考信号(Discovery Reference Signal，简称DRS)或同步信号块前需要进行LBT。只有在监听到信道空闲后，才发送DRS或同步信号块。否则在某一段时间后，基站再进行LBT。发送DRS或同步信号块是在某个发送窗口内进行的，该发送窗口可以是基站和UE约定好的，也可以是RRC信令通过发现参考信号测量定时配置(Discovery reference signal Measurement Timing Configuration，简称DMTC)或者同步测量时间配置(Synchronization Measurement Timing Configuration，简称SMTC)配置的。DRS或同步信号块具有多个预定义的时域位置。
在NR的非授权频谱上，基站发送RMSI前也可能需要进行LBT，只有当监听到信道空闲后，才发送RMSI，否则在某一段时间后，基站再进行LBT。发送RMSI是在某个发送窗口内进行的，该发送窗口可以是基站和UE约定好的，也可以是MIB或RRC信令配置的。由于需要进行LBT，所以RMSI需要向后平移一定的时间。为了支持非授权频谱上的RMSI向后平移的特性，RMSI需要有多个预定义的时域位置。
在NR的非授权频谱上，基站通过LBT获得传输机会(Transmission Opportunity，简称TXOP)，会发送初始信号，告诉UE基站获得了传输机会。UE成功检测到了初始信号(initial signal)，知道基站获得了传输机会，开始一系列行为，例如监听PDCCH等。初始信号又可以被称为前导(Preamble)，或者唤醒信号(Wake-Up Signal，简称WUS)。UE在激活时间(active time)时间内默认检测初始信号，只有检测到初始信号才开始监听PDCCH。这样初始信号又有省电的功能。因此，也可以被称为省电信号(Power Saving  Signal)。
一般地，UE在成功检测到初始信号后，需要监听某一种或多种类型的PDCCH来得到COT。这一种或多种类型的PDCCH可以通过搜索空间集合来配置。COT包括基站占据信道的持续时间(比如几毫秒，或几个时隙等等)、在持续时间内时隙的格式(比如上行、下行、灵活符号的配置)、在持续时间内可用的LBT子带(LBT sub-band，LTB的基本单位，例如20MHz带宽)等。LBT子带又可以称为信道，或子信道(sub-channel)，或LBT子带，或LBT带宽(LBT bandwidth)，或RB set(RB集合)。
在非授权频谱中，基站可以进行LBT或CAA以得到信道占用。基站获得信道占用后可以下发下行信号。在不同的使用情形下，UE所能检测下行信号可以是不一样的。如果UE在该FFP内检测到下行信号，那么如何有效利用检测到的下行信号，现有技术还未给出解决方案。
本发明实施例提供一种数据接收方法，包括：在固定帧周期内检测下行信号；如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。
通过本发明实施例提供的技术方案，在UE成功检测到下行信号之后，可以确定UE能够在该下行信号所在的固定帧周期内进行上行发送或下行接收，为UE快速抢占非授权频段提供了一种可行方案，有利于提高终端获得非授权频段的信道占用成功概率。
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
本发明实施例提供的技术方案可适用于5G通信系统，还可适用于4G、3G通信系统，还可适用于后续演进的各种通信系统。
本发明实施例提供的技术方案也适用于不同的网络架构，包括但不限于中继网络架构、双链接网络架构，车联网通信架构。
本发明实施例中的基站(Base Station，简称BS)，也可称为基站设备，是一种部署在无线接入网用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(Base transceiver station，简称BTS)和基站控制器(Base Station Controller，简称BSC)。3G网络中提供基站功能的设备包括节点B(NodeB)和无线网络控制器(Radio Network Controller，简称RNC)。在4G网络中提供基站功能的设备包括演进的节点B(Evolved NodeB，简称eNB)。在无线局域网(Wireless Local Area Network，简称WLAN)中，提供基站功能的设备为接入点(Access Point，简称AP)。5G新无线(New Radio，简称NR)中的提供基站功能的设备包括继续演进的节点B(gNB)，所述基站还指代未来新的通信系统中提供基站功能的设备等。
本发明实施例中的终端(例如，发送终端和/或接收终端)可以指各种形式的用户设备(User Equipment，简称UE)、接入终端、用户单元、用户站、移动站、移动台(Mobile Station，简称MS)、远方站、远程终端、移动设备、用户终端、终端设备(terminal equipment)、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称SIP)电话、无线本地环路(Wireless Local Loop，简称WLL)站、个人数字处理(Personal Digital Assistant，简称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、未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，简称PLMN)中的终端设备等，本发明实施例对此并不限定。
应理解，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“/”，表示前后关联对象是一种“或”的关系。
本发明实施例中出现的“多个”是指两个或两个以上。
本发明实施例中出现的“连接”是指直接连接或者间接连接等各种连接方式，以实现设备间的通信，本发明实施例对此不做任何限定。
图1是是本发明实施例的一种数据接收方法的流程示意图。所述数据接收方法可以由UE执行，例如由NR UE执行。具体而言，所述数据接收方法可以包括以下步骤：
步骤S101，在固定帧周期内检测下行信号；
步骤S102，如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。
对于基于帧的设备(Frame based Equipment，简称FBE)操作，一般地，基站在固定帧周期(Fixed Frame Period，简称FFP)的结尾的某一段时间内进行LBT，来获得固定帧周期内的信道占用。当UE未检测到GC-PDCCH时，UE仍然可以通过检测固定帧周期内的下行信号(包括下行信道)来获得信道占用的情况。
当UE和网络侧基站使用非授权频段进行数据收发时，为节省UE功耗，可以由基站进行LBT。
当基站在固定帧周期(Fixed Frame Period，简称FFP)末尾的一段时间内进行LBT，并获得信道占用时，基站可以将信道占用相关信息发送给UE。
在步骤S101中，UE可以在FFP内检测下行信号。具体实施中，UE可以在非授权频段的FFP内检测下行信号。如果UE在FFP开头成功检测到GC-PDCCH，就能从下行控制信息中获得基站占用信道的相关信息。
在一个实施例中，所述下行信号指的是下行控制信号。在又一个实施例中，所述下行信号可以包括以下一项或多项：PDCCH信号、SSB、PBCH信号。
在步骤S102中，如果UE在所述固定帧周期内成功检测到所述下行信号，则UE确定在所述固定帧周期内可以进行上行传输(uplink transmission，亦称上行发送)或进行下行接收。
所述UE确定在所述固定帧周期内可以进行上行传输或进行下行接收，等价于确认基站获得信道占用并共享给UE。
在一个实施例中，如果在所述固定帧周期内未检测到GC-PDCCH，但成功检测到除GC-PDCCH以外的其他下行信号，则UE可以确定能够在所述固定帧周期内进行上行传输或进行下行接收。所述UE确定在所述固定帧周期内可以进行上行传输或进行下行接收，等价于确认基站获得信道占用并共享给UE。
其中，所述上行传输可以包括以下一项或多项：物理上行控制信道(Physical Uplink Control Channel，简称PUCCH)传输、配置的授权物理上行共享信道(Configured Grant Physical Uplink Shared Channel，简称CG-PUSCH)、周期探测参考信号(Sounding Reference Signal，简称SRS)、半持续(semi-persistent)的SRS、物理随机接入信道(Physical Random Access Channel，简称PRACH)、自主上行传输(autonomous uplink transmission)。所述上行传输并不限于上述的情形，可以包括其他的配置的或周期的上行传输。
所述下行接收至少可以包括以下一项或多项：信道状态信息参考信号(Channel State Information Reference Signal，简称CSI-RS)接收或半持续调度的PDSCH(Semi-Persistent Scheduling PDSCH，简称SPS-PDSCH)接收。所述下行接收并不限于上述的情形，可以包括其他的配置的或周期的下行接收。
在具体实施中，UE在上行发送前使用高优先级的信道侦听；或者，UE在上行发送前使用高优先级的信道评估；或者，UE在上行发送前使用高优先级的LBT；或者，UE在上行发送前使用最高优先级的信道侦听或最高优先级的信道评估或最高优先级的LBT。这样可以提高UE上行发送的概率。
在具体实施中，UE确定能够在所述固定帧周期内进行上行发送指的是在第一持续时间的侦听到信道空闲就进行上行发送或不侦听信道就进行上行发送。其中，所述第一持续时间指的是多个持续时间中，参数值相对较小的持续时间。例如，参数值为9微秒、16微秒或25微秒。所述第一持续时间可以为9微秒或16微秒。
在具体实施中，UE在上行发送前选取较小侦听信道持续时间进行信道侦听或信道评估或LBT。或者，UE在上行发送前不进行信道侦听或信道评估或LBT。这样可以提高UE上行发送的概率。
在具体实施例中，如果上行传输和(基站的)下行传输突发(Burst)之间的时间间隔(gap)小于等于T1微秒，则UE可以不侦听信道就进行上行传输。一般来说，T1可以为16。
在具体实施例中，如果上行传输和(基站的)下行传输突发之间的时间间隔大于T1微秒，并且UE在持续时间为T2微秒内侦听到信道为空闲，则UE可以不侦听信道就进行上行传输。一般来说，T1可以为16，T2可以为9。
在具体实施中，假设所述下行信号为PDCCH，在此条件下，所述下行接收的带宽位于所述PDCCH所在的LBT带宽(bandwidth)或LBT子带内；或者，所述下行接收的带宽位于所述PDCCH所属的控制资源集的LBT带宽或LBT子带内。
在具体实施中，所述下行信号为PDCCH，所述PDCCH的循环冗余校验(Cyclic Redundancy Check，简称CRC)可以使用小区无线网络临时标识(Cell-Radio Network Temporary Identity，简称C-RNTI)、系统信息RNTI(System Information RNTI，简称SI-RNTI)、寻呼RNTI(paging RNTI，简称P-RNTI)、随机接入(Random Access RNTI，简称RA-RNTI)、TC-RNTI(Temporary C-RNTI)等进行加扰。需要说明的是，成功检测PDCCH指的是所述PDCCH的CRC校验通过。
在一个实施例中，所述PDCCH可以是承载寻呼指示的PDCCH。该寻呼指示(paging indicator)用于触发一组或一个UE在当前寻呼时机(paging occasion，简称PO)或后续PO上监听寻呼PDCCH。后续PO可以理解为当前时刻之后的最近一个PO。后续PO也可以理解为当前时刻之后的任意一个PO。
在一个实施例中，所述下行信号为寻呼PDCCH或OSI PDCCH，所述寻呼PDCCH的监听时机或所述OSI PDCCH的监听时机的数量为S。其中，S为基站指示的真正发送SSB的个数，或者，S为所述基站指示的真正发送的SSB的集合的子集内的SSB个数，S为整数。所述真正发送的SSB的集合的子集可以是非准共站址(non-Quasi Co-Located，即non-QCLed)的SSB形成的集合。
本领域技术人员理解，SSB在传输窗口(transmission window)内或传输窗口间是有准共站址(Quasi Co-Located，简称QCL)关系的，并且非准共站址的SSB组成一个子集。
在具体实施中，所述上行发送的起始时间与所述固定帧周期的起始时间可以具有时间间隔；或者，所述下行接收的起始时间与所述固定帧周期的起始时间可以具有时间间隔。其中，所述时间间隔是预定义的或者是基站配置的。
在具体实施中，所述上行发送的起始时间与第一GC-PDCCH可以具有时间间隔；或者，所述下行接收的起始时间与所述第一GC-PDCCH可以具有时间间隔。其中，所述第一GC-PDCCH指的是与所述上行发送的起始时间距离最近的GC-PDCCH。其中，所述时间间隔是预定义的或者是基站配置的。
在一个实施例中，所述下行信号为SSB，所述下行接收的带宽位于所述SSB所在的LBT带宽或LBT子带内；或者，所述下行接收的带宽位于所述SSB所属的带宽部分(Bandwidth Part，简称BWP)的LBT带宽或LBT子带内。所述SSB所属的带宽部分可以是初始激活下行BWP(initial active DL BWP)或者BWP标识(identity，简称 ID)为0的BWP(BWP 0)。在具体实施中，成功检测到SSB指的是UE能够确定基站已经发出所述SSB。
在一个实施例中，所述下行信号为PBCH，所述下行接收的带宽位于所述PBCH所在的LBT带宽或LBT子带内；或者，所述下行接收的带宽位于所述PBCH所属带宽部分的LBT带宽或LBT子带内。所述SSB所属的带宽部分可以是初始激活下行BWP(initial active DL BWP)或者BWP ID为0的BWP(BWP 0)。在具体实施中，成功检测到PBCH指的是通过PBCH的CRC校验。
在具体实施中，所述下行信号可以为SSB或PBCH，所述SSB或PBCH的监听数量为S；其中，S为基站指示的真正发送的SSB的发送个数，或者，S为所述基站指示的真正发送的SSB的集合的子集内SSB的个数，S为整数。所述真正发送的SSB的集合的子集可以是非准共站址的SSB形成的集合。
进一步，当成功检测到PBCH时，UE可以将所述PBCH所在SSB作为无线资源管理测量和/或无线链路监听测量的测量样本。换言之，UE解码PBCH或SSB，可以得到信道质量信息，进而可以将PBCH所在SSB作为测量结果。当成功检测到PBCH时，UE可以将所述PBCH所在SSB作为测量的同步样本，用于表示In-sync。
在一个实施例中，假设基站可以下发空闲态下的GC-PDCCH，如果在所述固定帧周期内检测到空闲态下的GC-PDCCH，则空闲态UE可以确定能够在所述固定帧周期内进行上行传输或进行下行接收。
在具体实施中，所述空闲态下的GC-PDCCH的配置信息是由SIB1携带的。所述空闲态下的GC-PDCCH关联的控制资源集可以默认是CORESET0。所述空闲态下的GC-PDCCH可以承载寻呼指示。
在具体实施中，当所述空闲态下的GC-PDCCH对应的FFP包含寻呼时机(paging occasion，简称PO)或寻呼PDCCH监听时机(paging  PDCCH monitoring occasion)或发送/接收RACH过程相关信号/信道(包括Msg-1、Msg-2、Msg-3、Msg-4相关的信号/信道)时，UE需要监听所述空闲态下的GC-PDCCH。一般来说，Msg-1关联的信道可以为PRACH，Msg-2关联的信道可以为随机接入响应(Random Access Response)PDCCH和/或RAR PDSCH，Msg-2关联的信道可以为PUSCH和/或PUCCH,Msg-4关联的信道可以为PDCCH和/或PDSCH。
下面以具体实施例进行详细阐述，旨在通过检测下行信号，确定上行发送或下行接收是否可以发生。
在具体实施中，所述上行发送至少可以包括发送PUCCH、CG-PUSCH、周期SRS、半持续调度的SRS、PRACH或自主上行传输。所述下行接收至少可以包括接收CSI-RS或SPS PDSCH。
在具体实施中，一般地，当UE处于连接态(CONNECTED)时，基站会在FFP开头给UE配置GC-PDCCH。一旦UE在FFP开头检测到GC-PDCCH，就能从下行控制信息中获得基站占用信道的相关信息。如果UE未检测到GC-PDCCH或基站未配置GC-PDCCH，那么当UE检测到除GC-PDCCH以外的其他下行信号时，可以通过如下实施例(实施例一或实施例二)进行后续处理。
实施例一
如果在FFP内检测到PDCCH，则UE可以确定在所述FFP内，上行传输或下行接收可以发生。一般地，UE配置有需要周期监听的PDCCH。即使UE未检测到GC-PDCCH或者未配置GC-PDCCH，UE也仍能够通过检测到的PDCCH来获得基站已经占用的当前FFP内的信道的信息。
所述上行传输可以发生可以指UE在上行发送前使用高优先级的信道侦听或信道评估或LBT。所述上行传输可以发生也可以指UE在上行发送前使用最高优先级的信道侦听或信道评估或LBT。这样可以 提高UE上行发送的概率。
所述上行传输可以发生可以指UE选取较小侦听信道持续时间进行信道侦听或信道评估或LBT。例如，侦听信道持续时间可以为16微秒(μs)、25μs等。所述侦听信道持续时间也可以称为短帧间隔(Short Inter-Frame Space，简称SIFS)。所述上行传输可以发生也可以指UE不进行信道侦听或信道评估或LBT。这样可以提高UE上行发送的概率。
所述下行接收需要满足下行接收带宽在检测到的PDCCH所在的LBT带宽或LBT子带(亦称LBT信道或LBT子信道)内。或者，所述下行接收带宽在检测到的PDCCH所属的CORESET所在的LBT带宽或LBT子带内。
其中，所述检测到的PDCCH是指通过该PDCCH的CRC校验。所述PDCCH可以是C-RNTI加扰的，此时，该PDCCH是连接态下基站对UE进行单播业务时使用的调度PDCCH。所述PDCCH也可以是SI-RNTI或P-RNTI或RA-RNTI或TC-RNTI加扰的，此时，该PDCCH是基站对UE进行广播业务时使用的调度PDCCH，广播业务可以包括SIB1、SIBx、寻呼(paging)、随机接入响应(Random Access Response，简称RAR)等，其中SIBx指的是除SIB1以外的其他SIB。
现有技术中，通常假定在非授权频谱中，对一个给定寻呼时机，寻呼PDCCH有额外的寻呼PDCCH监听时机，以从原来的S个监听时机扩展为S·X个寻呼PDCCH监听时机，S为协议规定的，S为整数、X为整数。但在本实施例中，当UE监听寻呼PDCCH时，UE可以仅监听S个寻呼PDCCH监听时机。其中，S为基站指示的真正发送的SSB的个数，或者为基站指示的真正发送的SSB的集合的子集内SSB的个数。该子集为非准共站址的SSB组成的集合。也就是说，当UE监听寻呼PDCCH时，UE可以假设寻呼PDCCH没有额外的PDCCH监听时机，或者UE假设寻呼PDCCH没有位移(shift)或循环位移(cyclic shift)。需要说明的是，寻呼PDCCH指的是由 P-RNTI加扰CRC的PDCCH。
当UE监听OSI PDCCH时，UE可以仅监听S个PDCCH监听时机，其中S为基站指示的真正发送的SSB的个数，或者为基站指示的真正发送的SSB的集合的子集内SSB的个数。该子集为非准共站址的SSB组成的集合。需要说明的是，OSI PDCCH指的是由SI-RNTI加扰CRC的PDCCH。
进一步，所述上行传输或下行接收的开始时间与所述FFP的开始时间之间存在时间间隔(gap)或时间偏移量(offset)。或者，所述上行传输或下行接收的开始时间与UE能够监听的最近的GC-PDCCH之间有个时间间隔或时间偏移量。所述时间间隔或时间偏移量是预定义的，或者基站配置的。
实施例二
如果在FFP内检测到SSB或PBCH，则UE确定在所述FFP内，上行传输或下行接收可以发生。通常情况下，SSB或PBCH是周期发送的，并且UE知道SSB或PBCH的周期等信息。因而，即使未检测到GC-PDCCH或者未配置GC-PDCCH，UE也能够通过检测到的SSB或PBCH来获得基站已经占用当前FFP内的信道的信息。
所述上行传输可以发生可以指UE在上行发送前使用高优先级的信道侦听或信道评估或LBT。所述上行传输可以发生也可以指UE在上行发送前使用最高优先级的信道侦听或信道评估或LBT。这样可以提高UE上行发送的概率。
所述上行传输可以发生也可以指UE选取较小侦听信道持续时间进行信道侦听或信道评估或LBT。例如，侦听信道持续时间可以为16微秒(μs)、25μs等。所述侦听信道持续时间也可以称为短帧间隔(Short Inter-Frame Space，简称SIFS)。所述上行传输可以发生也可以指UE不进行信道侦听或信道评估或LBT。这样可以提高UE上行发送的概率。
所述下行接收需要满足下行接收带宽在检测到的SSB或PBCH所在的LBT带宽(亦称信道)内，或者所述下行接收带宽在检测到的SSB或PBCH所属的带宽部分(Bandwidth Part，简称BWP)所在的LBT带宽内。
其中，检测到SSB是指UE确定该SSB已经被基站发出。检测到PBCH是指该PBCH的CRC校验通过。
现有技术中，通常假设在非授权频谱中，候选SSB位置比较多，而真正发送的SSB是基站在获得信道占用后，在位于信道占用期间的候选SSB位置上发送的，也就是平移或循环位移。但在本发明实施例中，当UE检测SSB或PBCH时，UE只监听S个SSB或S个SSB内的PBCH，其中S为基站指示的真正发送的SSB的个数，或者为基站指示的真正发送的SSB的集合的子集内的SSB的个数。该子集为非准共站址的SSB组成的集合。也就是说，当UE检测SSB或PBCH时，UE可以假设SSB或PBCH没有位移或循环位移。
进一步，UE可以将检测到的PBCH所在SSB作为RRM测量和/或RLM测量中的一个测量样本。UE可以将检测到的PBCH所在SSB作为RLM测量中的一个同步(In-Sync)样本。
进一步，所述上行传输的开始时间与所述FFP的开始时间之间可以具有一个时间间隔或时间偏移量，所述下行接收的开始时间与所述FFP的开始时间之间可以具有一个时间间隔或时间偏移量。或者，所述上行传输的开始时间与监听的最近的GC-PDCCH之间可以具有个间隔或偏移量，所述下行接收的开始时间与监听的最近的GC-PDCCH之间可以具有个间隔或偏移量。其中，所述时间间隔或时间偏移量是预定义的，或者基站配置的。
在具体实施中，UE处于空闲态(IDLE)或非激活态(INACTIVE)时，假设基站无法向UE配置空闲态的GC-PDCCH。在此条件下，如果处于空闲态或非激活态的UE未检测到GC-PDCCH或基站未配置GC-PDCCH，那么当UE检测到除GC-PDCCH以外的其他下行信号 时，可以通过如下实施例(实施例三或实施例四)进行后续处理。
实施例三
如果在FFP内检测到PDCCH，则UE可以确定在所述FFP内，上行传输或下行接收可以发生。具体内容可以参考实施例一。
由于UE处于空闲态或非激活态，因而PDCCH可以是SI-RNTI或P-RNTI或RA-RNTI或TC-RNTI加扰的，该PDCCH是基站对UE进行广播业务时使用的调度PDCCH。其中，广播业务可以包括SIB1、SIBx、寻呼、随机接入响应等。此外，所述PDCCH还可以是承载寻呼指示(Paging Indicator)的PDCCH。一般地，寻呼指示触发一组或一个UE在当前或后续PO上监听寻呼PDCCH。寻呼指示PDCCH是寻呼的优化方式，可以对监听同一个PO的UE进一步分组，从而降低虚警(false alert)概率。
实施例四
如果在FFP内检测到SSB或PBCH，则UE确定在所述FFP内，上行传输或下行接收可以发生。具体内容可以参考实施例二。
在具体实施中，UE处于空闲态(IDLE)或非激活态(INACTIVE)时，假设基站可以向UE配置空闲态的GC-PDCCH。在此条件下UE可以通过如下实施例(实施例五)进行后续处理。
实施例五
如果在FFP内检测到空闲态下的GC-PDCCH，则UE确定在所述FFP内，上行传输或下行接收可以发生。在具体实施中，UE可以通过SIB1信息获得所述空闲态下的GC-PDCCH的配置信息。所述空闲态下的GC-PDCCH关联的CORESET可以默认是CORESET0。所述空闲态下的GC-PDCCH可以承载寻呼指示。其中，寻呼指示用于触发一组或一个UE在当前或后续PO上监听寻呼PDCCH或由P-RNTI加扰CRC的PDCCH。当所述空闲态下的GC-PDCCH对应的FFP包含寻呼时机或寻呼PDCCH监听时机或发送/接收RACH过程 相关信号/信道(包括Msg-1、Msg-2、Msg-3、Msg-4相关的信号/信道)时，UE需要监听所述空闲态下的GC-PDCCH。一般来说，Msg-1关联的信道可以为PRACH，Msg-2关联的信道可以为RARPDCCH和/或RAR PDSCH，Msg-2关联的信道可以为PUSCH和/或PUCCH,Msg-4关联的信道可以为PDCCH和/或PDSCH。
综上所述，当UE未能在FFP中检测到GC-PDCCH或基站未对UE配置GC-PDCCH时，如果UE在该FFP中接收到其他下行信号，本发明实施例允许UE根据接收到的其他下行信号确定上行发送或下行接收是否能够发生，为UE执行后续数据收发提供了一种可行技术方案。此外，当UE处于空闲态或非激活态时，如果UE在该FFP中接收到空闲态GC-PDCCH，则UE仍然能够确定上行发送或下行接收是否能够发生，为UE更大概率获得LBT带宽提供可能。
图2是本发明实施例的一种数据接收装置的结构示意图。所述数据接收装置2可以实施图1所示方法技术方案，由UE执行。具体而言，所述数据接收装置2可以包括：检测模块21，用于在固定帧周期内检测下行信号；确定模块22，如果在所述固定帧周期内成功检测到所述下行信号，则所述确定模块22用于确定能够在所述固定帧周期内进行上行发送或进行下行接收。
关于所述数据接收装置2的工作原理、工作方式的更多内容，可以参照上述图1中的相关描述，这里不再赘述。
应理解，本发明实施例中，所述处理器可以为中央处理单元(Central Processing Unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，简称DSP)、专用集成电路(Application Specific Integrated Circuit，简称ASIC)、现成可编程门阵列(Field Programmable Gate Array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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。
还应理解，本发明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，简称ROM)、可编程只读存储器(Programmable ROM，简称PROM)、可擦除可编程只读存储器(Erasable PROM，简称EPROM)、电可擦除可编程只读存储器(Electrically EPROM，简称EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，简称RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(Random Access Memory，简称RAM)可用，例如静态随机存取存储器(Static RAM，简称SRAM)、动态随机存取存储器(Dynamic Random Access Memory，简称DRAM)、同步动态随机存取存储器(Synchronous DRAM，简称SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，简称DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，简称ESDRAM)、同步连接动态随机存取存储器(Synchronous connection to DRAM，简称SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，简称DR-RAM)。
上述实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用 介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。
应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
在本发明所提供的几个实施例中，应该理解到，所揭露的方法、装置和系统，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，在本发明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包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory， 简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
进一步地，本发明实施例还公开一种存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述图1所示实施例中所述的方法技术方案。优选地，所述存储介质可以包括诸如非挥发性(non-volatile)存储器或者非瞬态(non-transitory)存储器等计算机可读存储介质。所述计算机可读存储介质可以包括ROM、RAM、磁盘或光盘等。
进一步地，本发明实施例还公开一种终端，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述图1所示实施例中所述的方法技术方案。优选地，所述终端可以为NR UE。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (34)

  1. 一种数据接收方法，其特征在于，包括：
    在固定帧周期内检测下行信号；
    如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。
  2. 根据权利要求1所述的数据接收方法，其特征在于，所述下行信号为下行控制信号。
  3. 根据权利要求1所述的数据接收方法，其特征在于，所述下行信号包括以下一项或多项：PDCCH、SSB、PBCH。
  4. 根据权利要求1所述的数据接收方法，其特征在于，所述上行发送包括以下一项或多项：PUCCH传输、CG-PUSCH传输、周期SRS传输、半持续的SRS传输、PRACH传输、自主上行传输。
  5. 根据权利要求1所述的数据接收方法，其特征在于，所述下行接收包括以下一项或多项：CSI-RS接收、半持续调度的PDSCH接收。
  6. 根据权利要求1至5中任一项所述的数据接收方法，其特征在于，所述确定能够在所述固定帧周期内进行上行发送指的是在上行发送前使用高优先级的信道侦听或高优先级的信道评估或高优先级的LBT。
  7. 根据权利要求1至5中任一项所述的数据接收方法，其特征在于，所述确定能够在所述固定帧周期内进行上行发送指的是在第一持续时间的侦听到信道空闲就进行上行发送或不侦听信道就进行上行发送。
  8. 根据权利要求1所述的数据接收方法，其特征在于，所述下行信号为PDCCH，所述下行接收的带宽位于所述PDCCH所在的LBT带宽或LBT子带内；或者，所述下行接收的带宽位于所述PDCCH 所属的控制资源集的LBT带宽或LBT子带内。
  9. 根据权利要求1所述的数据接收方法，其特征在于，所述下行信号为PDCCH，所述PDCCH的加扰选自：C-RNTI、SI-RNTI、P-RNTI、RA-RNTI、TC-RNTI。
  10. 根据权利要求1所述的数据接收方法，其特征在于，所述下行信号为PDCCH，所述PDCCH是承载寻呼指示的PDCCH。
  11. 根据权利要求1所述的数据接收方法，其特征在于，所述下行信号为寻呼PDCCH或OSI PDCCH，所述寻呼PDCCH的监听时机或所述OSI PDCCH的监听时机的数量为S；
    其中，S为基站指示的真正发送的SSB的个数，或者，S为所述基站指示的真正发送的SSB的集合的子集内的SSB个数，S为整数。
  12. 根据权利要求11所述的数据接收方法，其特征在于，所述真正发送的SSB的集合的子集为非准共站址的SSB形成的集合。
  13. 根据权利要求1所述的数据接收方法，其特征在于，所述上行发送的起始时间与所述固定帧周期的起始时间具有时间间隔；或者，所述下行接收的起始时间与所述固定帧周期的起始时间具有时间间隔。
  14. 根据权利要求1所述的数据接收方法，其特征在于，所述上行发送的起始时间与第一GC-PDCCH具有时间间隔；或者，所述下行接收的起始时间与所述第一GC-PDCCH具有时间间隔；
    其中，所述第一GC-PDCCH指的是与所述起始时间距离最近的GC-PDCCH。
  15. 根据权利要求13或14所述的数据接收方法，其特征在于，所述时间间隔是预定义的或者是基站配置的。
  16. 根据权利要求1至5、8至14中任一项所述的数据接收方法，其特征在于，所述下行信号为PDCCH，所述成功检测到所述下行信 号指的是通过所述PDCCH的CRC校验。
  17. 根据权利要求1所述的数据接收方法，其特征在于，所述下行信号为SSB，所述下行接收的带宽位于所述SSB所在的LBT带宽或LBT子带内；或者，所述下行接收的带宽位于所述SSB所属的带宽部分的LBT带宽或LBT子带内。
  18. 根据权利要求17所述的数据接收方法，其特征在于，所述成功检测到所述下行信号指的是用户设备确定基站发出所述SSB。
  19. 根据权利要求1所述的数据接收方法，其特征在于，所述下行信号为PBCH，所述下行接收的带宽位于所述PBCH所在的LBT带宽或LBT子带内；或者，所述下行接收的带宽位于所述PBCH所属带宽部分的LBT带宽或LBT子带内。
  20. 根据权利要求19所述的数据接收方法，其特征在于，所述成功检测到所述下行信号指的是通过所述PBCH的CRC校验。
  21. 根据权利要求1所述的数据接收方法，其特征在于，所述下行信号为SSB或PBCH，所述SSB或PBCH的监听数量为S；
    其中，S为基站指示的真正发送的SSB的个数，或者，S为所述基站指示的真正发送的SSB的集合的子集内的SSB的个数，S为整数。
  22. 根据权利要求21所述的数据接收方法，其特征在于，所述真正发送的SSB的集合的子集为非准共站址的SSB形成的集合。
  23. 根据权利要求17至22中任一项所述的数据接收方法，其特征在于，还包括：
    当成功检测到PBCH时，将所述PBCH所在SSB作为无线资源管理测量和/或无线链路监听测量的测量样本。
  24. 根据权利要求17至22中任一项所述的数据接收方法，其特征在于，还包括：
    当成功检测到PBCH时，将所述PBCH所在SSB作为无线链路监听测量的同步样本。
  25. 根据权利要求1至5、8至14、17至22中任一项所述的数据接收方法，其特征在于，所述如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收包括：
    如果在所述固定帧周期内未检测到GC-PDCCH，但成功检测到除GC-PDCCH以外的其他下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。
  26. 根据权利要求1所述的数据接收方法，其特征在于，所述如果在所述固定帧周期内成功检测到所述下行信号，则确定能够在所述固定帧周期内进行上行发送或进行下行接收包括：
    如果在所述固定帧周期内检测到GC-PDCCH，则确定能够在所述固定帧周期内进行上行发送或进行下行接收。
  27. 根据权利要求26所述的数据接收方法，其特征在于，所述GC-PDCCH是空闲态下的GC-PDCCH。
  28. 根据权利要求27所述的数据接收方法，其特征在于，所述GC-PDCCH的配置信息是由SIB1携带的。
  29. 根据权利要求27所述的数据接收方法，其特征在于，所述GC-PDCCH关联的控制资源集默认是CORESET0。
  30. 根据权利要求27所述的数据接收方法，其特征在于，所述GC-PDCCH承载寻呼指示。
  31. 根据权利要求27所述的数据接收方法，其特征在于，当所述空闲态下的GC-PDCCH对应的固定帧周期包含寻呼时机或寻呼PDCCH监听时机或随机接入过程相关信号时，监听所述空闲态下的GC-PDCCH。
  32. 一种数据接收装置，其特征在于，包括：
    检测模块，用于在固定帧周期内检测下行信号；
    确定模块，如果在所述固定帧周期内成功检测到所述下行信号，则所述确定模块用于确定能够在所述固定帧周期内进行上行发送或进行下行接收。
  33. 一种存储介质，其上存储有计算机指令，其特征在于，所述计算机指令运行时执行权利要求1至31任一项所述的方法的步骤。
  34. 一种终端，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，其特征在于，所述处理器运行所述计算机指令时执行权利要求1至31任一项所述的方法的步骤。
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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110856180B (zh) * 2019-11-08 2022-02-11 展讯通信（上海）有限公司 数据接收方法及装置、存储介质、终端
CN113517966B (zh) * 2020-04-10 2023-08-29 展讯通信（上海）有限公司 下行参考信号处理方法、装置及可读存储介质
CN113517963B (zh) * 2020-04-10 2023-06-20 展讯通信（上海）有限公司 上行信号或信道处理方法、装置及可读存储介质
CN113677012A (zh) * 2020-05-15 2021-11-19 维沃移动通信有限公司 随机接入信号的传输方法和终端
CN113676301B (zh) * 2020-05-15 2023-04-25 展讯通信（上海）有限公司 确定搜索空间集配置的方法及装置、计算机可读存储介质
US12052711B2 (en) 2020-08-05 2024-07-30 Apple Inc. Base station operations during a UE-initiated channel access procedure
US12035361B2 (en) 2020-08-05 2024-07-09 Apple Inc. UE-initiated channel access procedure in wireless communication on shared spectrum
CN114071537A (zh) * 2020-08-07 2022-02-18 维沃移动通信有限公司 测量参考信号的方法、终端设备和网络设备
CN116349183A (zh) * 2020-10-05 2023-06-27 苹果公司 在rach过程中监测pdcch传输
CN114765510B (zh) * 2021-01-15 2024-07-05 大唐移动通信设备有限公司 一种资源配置、获取方法及装置
WO2022214030A1 (en) * 2021-04-07 2022-10-13 FG Innovation Company Limited User equipment and method for frame-based equipment operation in an unlicensed band
WO2024031623A1 (en) * 2022-08-12 2024-02-15 Lenovo (Beijing) Limited User equipment, base station and method for configured grant uplink transmission

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106851822A (zh) * 2017-02-04 2017-06-13 北京佰才邦技术有限公司 传输方法和用户终端
CN107466110A (zh) * 2016-06-06 2017-12-12 北京三星通信技术研究有限公司 一种上行信号的发送方法、用户设备
CN107637006A (zh) * 2015-11-03 2018-01-26 韩国电子通信研究院 支持非授权频带的通信网络的调度方法
WO2018141308A1 (en) * 2017-02-06 2018-08-09 Mediatek Inc. Group common physical downlink control channel design in mobile communications
CN110856180A (zh) * 2019-11-08 2020-02-28 展讯通信（上海）有限公司 数据接收方法及装置、存储介质、终端

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106162658B (zh) * 2015-04-24 2021-07-23 中兴通讯股份有限公司 一种数据传输的方法
KR102394223B1 (ko) * 2015-05-15 2022-05-04 삼성전자 주식회사 무선 통신 시스템에서 페이징 프로세스 수행 장치 및 방법
CN106301733B (zh) * 2015-06-26 2020-11-20 中兴通讯股份有限公司 数据的传输方法及装置
CN108352958B (zh) * 2015-11-04 2020-12-11 北京小米移动软件有限公司 用户设备接收下行链路信号的方法及用户设备
CN109302746B (zh) * 2017-11-17 2019-11-01 华为技术有限公司 检测窗指示方法及装置
US10652826B2 (en) * 2018-03-23 2020-05-12 Samsung Electronics Co., Ltd. Method and apparatus for power saving signal design in NR
US11206633B2 (en) * 2018-03-28 2021-12-21 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving system information
CN110351881B (zh) * 2018-04-04 2021-11-19 展讯通信（上海）有限公司 信道接入方法及装置、存储介质、终端、基站
US11889439B2 (en) * 2018-08-09 2024-01-30 Lg Electronics Inc. Method for receiving downlink signal by terminal in wireless communication system, and terminal using same method
CN111800887B (zh) * 2019-08-02 2023-02-07 维沃移动通信有限公司 非授权频段上的上行传输方法及终端设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107637006A (zh) * 2015-11-03 2018-01-26 韩国电子通信研究院 支持非授权频带的通信网络的调度方法
CN107466110A (zh) * 2016-06-06 2017-12-12 北京三星通信技术研究有限公司 一种上行信号的发送方法、用户设备
CN106851822A (zh) * 2017-02-04 2017-06-13 北京佰才邦技术有限公司 传输方法和用户终端
WO2018141308A1 (en) * 2017-02-06 2018-08-09 Mediatek Inc. Group common physical downlink control channel design in mobile communications
CN110856180A (zh) * 2019-11-08 2020-02-28 展讯通信（上海）有限公司 数据接收方法及装置、存储介质、终端

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