WO2020057312A1 - 非授权频段的传输时间指示方法、网络设备和终端 - Google Patents

非授权频段的传输时间指示方法、网络设备和终端 Download PDF

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Publication number
WO2020057312A1
WO2020057312A1 PCT/CN2019/101705 CN2019101705W WO2020057312A1 WO 2020057312 A1 WO2020057312 A1 WO 2020057312A1 CN 2019101705 W CN2019101705 W CN 2019101705W WO 2020057312 A1 WO2020057312 A1 WO 2020057312A1
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WIPO (PCT)
Prior art keywords
cot
slot
information
remaining
channel
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PCT/CN2019/101705
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English (en)
French (fr)
Inventor
姜蕾
潘学明
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维沃移动通信有限公司
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Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP19862214.4A priority Critical patent/EP3855659A4/en
Priority to SG11202102776RA priority patent/SG11202102776RA/en
Priority to JP2021515487A priority patent/JP7216812B2/ja
Priority to KR1020217011664A priority patent/KR20210061411A/ko
Publication of WO2020057312A1 publication Critical patent/WO2020057312A1/zh
Priority to US17/205,935 priority patent/US12075474B2/en

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    • 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
    • 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
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • 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
    • H04L5/0001—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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • 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
    • H04W72/20—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
    • H04L5/0091—Signaling for the administration of the divided path
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a transmission time indication method for an unlicensed frequency band, a network device, and a terminal.
  • unlicensed bands can be used as supplements to licensed bands to help operators expand service capacity.
  • the unlicensed band can work in the 5GHz, 37GHz, and 60GHz bands.
  • the large bandwidth (80 or 100 MHz) of the unlicensed frequency band can reduce the implementation complexity of the base station (gNB) and user terminal (User Equipment, UE).
  • gNB base station
  • UE User Equipment
  • unlicensed frequency bands are shared by multiple technologies (RATs), such as WiFi, radar, and LTE-LAA, etc., in some countries or regions, unlicensed frequency bands must comply with rules when used to ensure that all equipment can use the frequency fairly.
  • RATs such as WiFi, radar, and LTE-LAA, etc.
  • LBT Listen Before Talk
  • MCOT Maximum Channel Occupancy Time
  • a transmitting node needs to send information, it needs to do LBT first, and perform power detection (Energy Detection) on the surrounding nodes.
  • the detected power is lower than a threshold, the channel is considered to be idle, and the transmitting node can Send it. Conversely, the channel is considered busy and the transmitting node cannot send.
  • the transmission node may be a base station, a UE, a WiFi wireless access node (Access Point, AP), and the like. After the transmitting node starts transmitting, the channel occupation time (COT) cannot exceed MCOT.
  • COT channel occupation time
  • the UE In the unlicensed band, the UE cannot predict when the base station can grab the channel because the channel status is uncertain. Similarly, the UE cannot predict how much time the base station needs to transmit after grabbing the channel. Since there is no common demodulation reference signal (CRS) in the NR, the UE needs to perform a physical downlink control channel (PDCCH) blind detection every time whether or not there is data. In addition, the UE needs to perform detection at each possible transmission start position of the gNB, for example, symbol # 0 and symbol # 7, and the PDCCH detection frequency is relatively high. When the signal is detected, the UE actually only needs to detect the PDCCH at the start position of each slot slot in the channel occupied time of the gNB. However, since the UE does not know the COT of the gNB, the terminal does not know when to perform PDCCH detection in units of slots. Therefore, the detection mechanism in the related art causes a large power consumption of the terminal.
  • CRS demodulation reference signal
  • PDCCH physical downlink
  • Embodiments of the present disclosure provide a method for indicating transmission time in an unlicensed frequency band, a network device, and a terminal, so as to solve the problem of large power consumption of the terminal.
  • an embodiment of the present disclosure provides a transmission time indication method for an unlicensed frequency band, which is applied to a network device and includes:
  • the first channel occupation time COT information is indicated, and the first COT information is used to indicate a remaining COT of the network device.
  • an embodiment of the present disclosure provides a transmission time indication method for an unlicensed frequency band, which is applied to a terminal and includes:
  • an embodiment of the present disclosure provides a network device, including:
  • a sending module is configured to indicate first channel occupation time COT information when the channel status is empty, and the first COT information is used to indicate a remaining COT of the network device.
  • an embodiment of the present disclosure provides a terminal, including:
  • a receiving module configured to receive first channel occupation time COT information, where the first COT information is used to indicate remaining COT;
  • a detection module is configured to perform blind detection of a physical downlink control channel PDCCH in the remaining COT.
  • an embodiment of the present disclosure provides a network device, including: a memory, a processor, and a program stored on the memory and executable on the processor, and the program is implemented when the program is executed by the processor. Steps in the method for indicating transmission time of the unlicensed frequency band.
  • an embodiment of the present disclosure provides a terminal, including: a memory, a processor, and a program stored on the memory and executable on the processor.
  • the program implements the foregoing when the program is executed by the processor. Steps in a method for indicating transmission time in an unlicensed band.
  • an embodiment of the present disclosure provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the transmission of the unauthorized frequency band on the network device side is implemented. Steps of a time indication method, or steps of a method for indicating a transmission time of an unlicensed frequency band on the terminal side when the computer program is executed by a processor.
  • the terminal can enable blind PDCCH detection within the remaining COT, and turn off blind PDCCH detection outside the remaining COT time. In this way, the embodiments of the present disclosure can reduce the power consumption of the terminal.
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a method for indicating a transmission time of an unlicensed band according to an embodiment of the present disclosure
  • FIG. 3 is one of the schematic diagrams of the remaining COT distribution in the first COT information in a subcarrier interval of 15 kHz in a method for indicating a transmission time of an unlicensed band according to an embodiment of the present disclosure
  • FIG. 4 is a second schematic diagram of the distribution of the remaining COT in the first COT information in a subcarrier interval of 15 kHz in a method for indicating a transmission time of an unlicensed band according to an embodiment of the present disclosure
  • FIG. 5 is one of the schematic diagrams of the remaining COT distribution in the first COT information in a subcarrier interval of 30 kHz in a method for indicating a transmission time of an unlicensed band according to an embodiment of the present disclosure
  • FIG. 6 is a second schematic diagram of the remaining COT distribution state in the first COT information when the subcarrier interval is 30 KHz in a method for indicating a transmission time of an unlicensed band according to an embodiment of the present disclosure
  • FIG. 7 is a third schematic diagram of a remaining COT distribution in the first COT information in a subcarrier interval of 15 kHz in a method for indicating a transmission time of an unlicensed band according to an embodiment of the present disclosure
  • FIG. 8 is a flowchart of another method for indicating a transmission time of an unlicensed frequency band according to an embodiment of the present disclosure
  • FIG. 9 is a structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 10 is a structural diagram of a terminal provided by an embodiment of the present disclosure.
  • FIG. 11 is a structural diagram of another network device according to an embodiment of the present disclosure.
  • FIG. 12 is a structural diagram of another terminal provided by an embodiment of the present disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as more preferred or advantageous over other embodiments or designs. Rather, the use of the words “exemplary” or “for example” is intended to present the relevant concept in a concrete manner.
  • An embodiment of the present disclosure provides a method for indicating transmission time in an unlicensed frequency band, a network device, and a terminal, which can be applied to a wireless communication system.
  • the wireless communication system may be a 5G system, an evolved long term evolution (evolved long term evolution, eLTE) system, or a subsequent evolved communication system.
  • eLTE evolved long term evolution
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present disclosure. As shown in FIG. 1, it includes a terminal 11 and a network device 12, where the terminal 11 may be a user terminal or other terminal-side devices. , Such as: mobile phone, tablet computer (laptop computer), laptop computer (laptop computer), personal digital assistant (personal digital assistant) (PDA), mobile Internet device (Mobile Internet Device (MID), or wearable device (Wearable (Device) and other terminal-side devices, it should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present disclosure.
  • the above network device 12 may be a 5G base station, or a base station in a later version, or a base station in another communication system, or is called a Node B, an evolved Node B, or a Transmission Reception Point (TRP), or an access point. (Access Point, AP), or other words in the field, as long as the same technical effect is achieved, the network device is not limited to a specific technical word.
  • the network device 12 may be a master node (Master Node, MN) or a secondary node (Secondary Node, SN). It should be noted that, in the embodiment of the present disclosure, only a 5G base station is taken as an example, but the specific type of the network device is not limited.
  • FIG. 2 is a flowchart of a method for indicating a transmission time of an unlicensed frequency band according to an embodiment of the present disclosure. The method is applied to a method for indicating a transmission time of an unlicensed frequency band. As shown in FIG. :
  • Step 201 monitoring the channel status
  • the method for indicating the transmission time of the unlicensed frequency band is mainly applied to network equipment.
  • network equipment When network equipment needs to send data, it can first perform LBT and detect the power of surrounding nodes to listen to the channel status. Specifically, when the detected power is lower than a threshold, the channel is considered to be idle, and the network device can perform transmission. On the contrary, the channel is considered to be busy and the network device cannot transmit.
  • step 202 when the channel status is empty, the first channel occupation time COT information is indicated, and the first COT information is used to indicate a remaining COT of the network device.
  • the total COT is smaller than the MCOT. For example, if the MCOT is 4 ms, the total COT can be 3 ms.
  • the network device detects that the channel is empty, the first COT information is indicated.
  • the total COT is calculated from the actual transmission of the channel.
  • the above-mentioned remaining COT is the remaining channel occupation time after excluding the slot indicating the first COT information in the total COT. It may also indicate the remaining calculation from the slot indicating the first COT information. Channel occupation time.
  • the terminal After receiving the COT information indicated by the network device, the terminal will determine the subsequent blind detection time of the PDCCH according to the remaining COT, that is, it starts to perform PDCCH detection according to the PDCCH monitoring period, which can also be called full PDCCH detection. Specifically, the terminal will enable blind PDCCH detection during the COT time, and turn off blind PDCCH detection outside the remaining COT time.
  • the terminal since the network device indicates the first channel occupation time COT information when the channel status is empty, the terminal is notified of the current remaining COT situation. Therefore, the terminal can enable blind PDCCH detection within the remaining COT, and turn off blind PDCCH detection outside the remaining COT time. In this way, the embodiments of the present disclosure can reduce the power consumption of the terminal.
  • the unit of the remaining COT (that is, time granularity) can be set according to actual needs.
  • the unit of the remaining COT is milliseconds, subframe, slot, mini-slot or symbol. symbol.
  • the remaining COT can be expressed as N ms; if subframe is used as the unit of the remaining COT, the remaining COT can be expressed as N subframes; if a mini-slot is used, The remaining COT can be expressed as N mini-slots; if the slot is used as the unit of the remaining COT, the remaining COT can be expressed as N slots.
  • the format of the remaining COT may be expressed by an integer, and may be expressed by a decimal.
  • the remaining COT is expressed by an integer.
  • the remaining COT is a value that is rounded up by the time granularity of the remaining COT. For example, if the actual remaining COT time is greater than 2ms and less than 3ms, the value of the remaining COT is 3ms. In this way, you can ensure that blind PDCCH detection can be enabled in all transmission slots to avoid missing data, thereby ensuring the reliability of data transmission.
  • the remaining COT is a value that is rounded down based on the time granularity of the remaining COT.
  • the remaining COT in the following embodiments is the actual remaining time, and the time graininess of the remaining COT is rounded up and taken as an example for detailed description.
  • the COT information indicating the first channel occupation time includes:
  • the first COT information is indicated in a first transmission slot slot or a partial slot partial slot or a mini-slot mini-slot.
  • FIG. 3 is one of the schematic diagrams of the remaining COT distribution with a subcarrier interval of 15 KHz
  • FIG. 5 is one of the schematic diagrams of the remaining COT distribution with a subcarrier interval of 30 KHz.
  • the first slot includes the LBT time, the channel occupancy time, and the channel reservation (also called the interval between the LBT and the first slot of the first transmission Gap) and the first transmission of the partial slot.
  • the first COT information is indicated in the first transmitted partial slot.
  • the first transmitted slot is a complete slot. At this time, the first COT information may be indicated in the first transmitted slot.
  • discontinuous reception mechanism Discontinuous Reception, DRX
  • DRX-OFF discontinuous Reception, DRX-ON
  • the first COT information may be instructed periodically, so that the terminal can receive the remaining COT information during the activation period (DRX-ON).
  • the indicated first channel occupation time COT information is also Including: periodically indicating the first COT information.
  • the first COT information is updated in each cycle, and the corresponding first COT information is indicated in each cycle.
  • the unit that indicates the period of the first COT information is milliseconds, a subframe, or a slot.
  • the length of the cycle can be set according to actual needs. For example, if the unit of the cycle is milliseconds, M milliseconds can be used as a cycle; the unit of the cycle can be M subframes as a cycle; the unit of the cycle is slot, You can use M slots as a cycle.
  • the period includes at least one slot, and the first COT information is located in any one slot within the period.
  • the subcarrier interval is 15KHz, and the cycle can be 1 millisecond, 1 subframe, or 1 slot, and then the first COT information is periodically indicated. At this time, one cycle includes only one slot, that is, the first COT information is indicated in each slot.
  • a period of 1 millisecond, 1 subframe, or 2 slots may be used, and then the first COT information is periodically indicated.
  • one cycle includes two slots, that is, in each cycle, the first COT information can be indicated in the first slot, and the first COT information can also be indicated in the last slot. It should be understood that, since the first COT information is a periodic indication, the positions of the slots used to indicate the first COT information in each cycle are the same.
  • the remaining COT is calculated by removing the slot that currently indicates the first COT information.
  • the total COT of the network device is 3ms
  • the time granularity of the COT is ms
  • the total COT is 3 ms.
  • the total COT includes channel reservation, and the actual remaining time after calculation is less than 3 ms.
  • the remaining COT 3ms.
  • the remaining COT is calculated from the slot currently indicating the first COT information.
  • the time granularity of the COT is ms, and the total COT is 3 ms.
  • the total COT includes channel reservation, and the actual remaining time after calculation is less than 3 ms. At this time, it is rounded up to 3 ms, so it is indicated in the first partial slot of the transmission.
  • the remaining COT 3ms.
  • the first full slot that is, the slot in the first cycle
  • the total COT of the network device may change according to the actual transmission data. For example, during the data transmission process, when new data arrives or data needs to be retransmitted, the network device will increase the COT to transmit the new data or data that needs to be retransmitted. At this time, the total COT will increase; of which, the new Data is a new data transmission and is an initial transmission; retransmitted data can be data that failed to transmit or other factors that require retransmission. When the total COT increases, the remaining COT indicated by the next slot may be more than the remaining COT indicated by the previous slot.
  • the remaining COT corresponding to the first COT information indicated by each cycle gradually decreases, as shown in FIG. 3; if the total COT of the network device increases, , According to the first COT information indicated in the previous cycle and the increased channel occupation time, the first COT information indicated in the next cycle is obtained; as shown in FIG. 4, the remaining COT is indicated in the second full slot to be equal to the first A full slot indicates the remaining COT. It should be noted that if the increased channel occupation time is greater than 1 unit time, the remaining COT indicated in the second full slot may be greater than the remaining COT indicated in the first full slot.
  • the remaining COT can be expressed in different units, the sizes corresponding to the remaining COT are also different.
  • the remaining COT when the remaining COT is updated periodically at 1 ms or 1 subframe, if the subcarrier interval is greater than 15 kHz, the first COT information is updated and indicated every 2n slots, where n is equal to the current Ratio of subcarrier spacing to 15kHz.
  • the indication of the first COT information may be in the first slot or the last slot of a subframe. In FIG. 5, the remaining COT is used for the ms representation.
  • the first COT information indicated in each cycle is indicated in the first slot of the subframe.
  • the first COT information may also be updated in time granularity according to ms or subframe.
  • the remaining COT of the terminal may also be indicated in accordance with the slot instruction rule in the above embodiment.
  • the remaining COT of the terminal may be indicated by adding a bit to the uplink control information (Uplink Control Information) (UCI).
  • UCI Uplink Control Information
  • the remaining COT of the terminal may be indicated in the slot or partial slot or mini-slot of the first transmission.
  • the remaining COT of the terminal may be indicated periodically.
  • first COT information may be carried in an initial signal initial signal, a downlink control information (Downlink Control Information) or a sequence.
  • Downlink Control Information Downlink Control Information
  • the first COT information is carried in an initial signal, the initial signal is carried in a physical downlink control channel (PDCCH), or the initial signal is located at a first preset position in the PDCCH domain.
  • PDCCH physical downlink control channel
  • the terminal when the initial signal is carried in the PDCCH, the terminal performs PDCCH DCI-based initial signal detection based on one or more of the following information configured by the network:
  • Downlink control information format DCI format and / or downlink control information payload DCI size
  • the terminal After detecting the PDCCH DCI as the initial signal, the terminal acquires the remaining COT of the network device based on the indication therein. The terminal can only detect the initial signal outside the remaining COT. After the terminal detects the initial signal (any form), it starts one of the following general operations:
  • Channel state information (Channel, Information, CSI) measurement such as channel and / or interference measurement.
  • the Initial signal may also be sent as an independent signal at a fixed position in the PDDCH domain; the fixed position is the above-mentioned first preset position, and the specific position setting is not further described here.
  • the foregoing first COT information may be carried in a sequence, and the sequence is located at a second preset position in a PDCCH domain.
  • the sequence may be a WiFi-like sequence (WiFi-like preamble) or another form of sequence.
  • the network device may use WiFi-like preamble at a fixed position, or other sequences refer to the remaining COT of the network device, for example, the corresponding sequence is sent on the first symbol of the PDCCH.
  • the first COT information may be carried in a DCI
  • the DCI may be a DCI carried on a group common PDCCH (GC-PDCCH), and the first COT information Indicated by a preset format; or, the first COT message is indicated by a multiplexed GC-PDCCH format, and the first COT message is scrambled by a new wireless network temporary identifier RNTI, the preset format and the GC -The PDCCH format is different.
  • the GC-PDCCH format is a GC-PDCCH format in the related art
  • the first preset format is a new DCI format.
  • the above-mentioned DCI may also be a DCI carried in an uplink or downlink scheduling PDCCH, and the first COT message is indicated by adding a domain to the DCI.
  • the method further includes:
  • the end time of the COT of the neighboring cell network device is determined according to the second COT information, the end time of the COT is used to determine the time of the monitoring channel state, and the second COT information is determined by the neighbor. Sent by the cell network device, and the second COT information is used to indicate a remaining COT of the neighboring cell network device.
  • the remaining COT sent by the network device can be received by the terminal and other neighboring cell network devices, and the remaining COT sent by the neighboring cell network device can be received by the above network device.
  • the time to start LBT may be determined according to the end time of the COT of the neighboring cell network device.
  • the foregoing step 201 may include:
  • the channel state is started to be monitored at the end of the COT or the channel state is started to be monitored at the end of the COT, it is possible to avoid unnecessary channel monitoring by the above-mentioned network device when the network device in the neighboring cell is transmitting data, which can reduce Power consumption of network devices.
  • the time between the network device and the network device of the neighboring cell is synchronized.
  • the above network equipment and neighboring cell network equipment may belong to the same operator operator, or may belong to different operators.
  • FIG. 8 is a flowchart of another method for indicating a transmission time of an unlicensed band according to an embodiment of the present disclosure. The method is applied to a terminal. As shown in FIG. 8, it includes the following steps:
  • Step 801 Receive first channel occupation time COT information, where the first COT information is used to indicate remaining COT;
  • Step 802 Perform a physical downlink control channel PDCCH blind detection in the remaining COT.
  • the receiving the first channel occupation time COT information includes:
  • the receiving the first channel occupation time COT information further includes: :
  • a unit of a period for receiving the first COT information is milliseconds, a subframe, or a slot.
  • the period includes at least one slot, and the first COT information is located in any one slot in the period.
  • the unit of the remaining COT is millisecond, subframe, slot, mini-slot, or symbol symbol.
  • the remaining COT is a value rounded up in units of the remaining COT; or, the remaining COT is a value rounded down in units of the remaining COT.
  • the first COT information is carried in an initial signal, downlink control information DCI, or a sequence.
  • the initial signal is carried in a physical downlink control channel (PDCCH), or the initial signal is located at a first preset position in a PDCCH domain.
  • PDCCH physical downlink control channel
  • the sequence is located at a second preset position in a PDCCH domain.
  • this embodiment is an implementation manner of the terminal corresponding to the embodiment shown in FIG. 2.
  • the description of the embodiment shown in FIG. 2 and achieve the same beneficial effects. The description is not repeated here.
  • FIG. 9 is a structural diagram of a network device according to an embodiment of the present disclosure.
  • the network device 900 includes:
  • the sending module 902 is configured to indicate first channel occupation time COT information when the channel status is empty, and the first COT information is used to indicate a remaining COT of the network device.
  • the sending module 902 is configured to indicate the first COT information in a first transmission slot slot or a partial slot partial slot or a mini-slot mini-slot.
  • the sending module 902 is further configured to periodically instruct the first COT information after indicating the first COT information in a first transmission slot slot or a partial time slot partial slot or a mini-slot mini-slot. First COT information.
  • a unit indicating a period of the first COT information is milliseconds, a subframe, or a slot.
  • the period includes at least one slot, and the first COT information is located in any one slot in the period.
  • the first COT information indicated by the next cycle is obtained according to the first COT information indicated by the previous cycle and the increased channel occupation time.
  • the unit of the remaining COT is millisecond, subframe, slot, mini-slot, or symbol symbol.
  • the remaining COT is a value rounded up in units of the remaining COT; or, the remaining COT is a value rounded down in units of the remaining COT.
  • the first COT information is carried in an initial signal, downlink control information DCI, or a sequence.
  • the initial signal is carried in a physical downlink control channel (PDCCH), or the initial signal is located at a first preset position in a PDCCH domain.
  • PDCCH physical downlink control channel
  • the sequence is located at a second preset position in a PDCCH domain.
  • the network device before the status of the listening channel, the network device further includes:
  • a processing module configured to determine a COT end time of a neighboring cell network device according to the second COT information according to the second COT information, where the COT end time is used to determine a time of listening to a channel state, and the second COT The information is sent by the neighboring cell network device, and the second COT information is used to indicate a remaining COT of the neighboring cell network device.
  • the listening module is specifically configured to start listening to the channel status at the end time of the COT; or, to listen to the channel status at the previous slot / subframe at the end time of the COT.
  • the network device provided by the embodiment of the present disclosure can implement the processes implemented by the network device in the method embodiment in FIG. 2. To avoid repetition, details are not described herein again, and the configured resource overhead can be reduced.
  • FIG. 10 is a structural diagram of a terminal provided by an embodiment of the present disclosure.
  • the terminal 1000 includes:
  • the receiving module 1001 is configured to receive first channel occupation time COT information, where the first COT information is used to indicate a remaining COT;
  • the detection module 1002 is configured to perform a blind detection of a physical downlink control channel PDCCH in the remaining COT.
  • the receiving module 1001 is specifically configured to receive the first COT information in a first transmission slot slot or a partial slot partial slot or a mini-slot mini-slot.
  • the receiving module 1001 is further configured to periodically receive the first COT information after receiving the first COT information in a first transmission slot slot or a partial time slot partial slot or a mini-slot mini-slot.
  • a COT message is further configured to periodically receive the first COT information after receiving the first COT information in a first transmission slot slot or a partial time slot partial slot or a mini-slot mini-slot.
  • a unit of a period for receiving the first COT information is milliseconds, a subframe, or a slot.
  • the period includes at least one slot, and the first COT information is located in any one slot in the period.
  • the unit of the remaining COT is millisecond, subframe, slot, mini-slot, or symbol symbol.
  • the remaining COT is a value rounded up in units of the remaining COT; or, the remaining COT is a value rounded down in units of the remaining COT.
  • the first COT information is carried in an initial signal, downlink control information DCI, or a sequence.
  • the initial signal is carried in a physical downlink control channel (PDCCH), or the initial signal is located at a first preset position in a PDCCH domain.
  • PDCCH physical downlink control channel
  • the sequence is located at a second preset position in a PDCCH domain.
  • the terminal provided in the embodiment of the present disclosure can implement the processes implemented by the terminal in the method embodiment in FIG. 10. To avoid repetition, details are not described herein again.
  • FIG. 11 is a structural diagram of another network device according to an embodiment of the present disclosure.
  • the network device 1100 includes a processor 1101, a transceiver 1102, a memory 1103, and a bus interface, where:
  • the processor 1101 is configured to listen to a channel state
  • the transceiver 1102 is configured to indicate the first channel occupation time COT information when the channel status is empty, and the first COT information is used to indicate a remaining COT of the network device.
  • the transceiver 1102 is specifically configured to indicate the first COT information in a first transmission slot slot or a partial slot partial slot or a mini-slot mini-slot.
  • the transceiver 1102 is further configured to periodically instruct the first COT after indicating the first COT information in a first transmission slot slot or a partial time slot partial or mini-slot. information.
  • a unit indicating a period of the first COT information is milliseconds, a subframe, or a slot.
  • the period includes at least one slot, and the first COT information is located in any one slot in the period.
  • the first COT information indicated by the next cycle is obtained according to the first COT information indicated by the previous cycle and the increased channel occupation time.
  • the unit of the remaining COT is millisecond, subframe, slot, mini-slot, or symbol symbol.
  • the remaining COT is a value rounded up in units of the remaining COT; or, the remaining COT is a value rounded down in units of the remaining COT.
  • the first COT information is carried in an initial signal, downlink control information DCI, or a sequence.
  • the initial signal is carried in a physical downlink control channel (PDCCH), or the initial signal is located at a first preset position in a PDCCH domain.
  • PDCCH physical downlink control channel
  • the sequence is located at a second preset position in a PDCCH domain.
  • the transceiver 1102 is further configured to: if the second COT information is received, determine the COT end time of the neighboring cell network device according to the second COT information, and the COT ends The time is used to determine the time of the listening channel state, the second COT information is sent by the neighboring cell network device, and the second COT information is used to indicate the remaining COT of the neighboring cell network device.
  • the processor 1101 is specifically configured to: start listening to the channel status at the end time of the COT; or listen to the channel status at the previous slot / subframe at the end time of the COT.
  • the bus architecture may include any number of interconnected buses and bridges, and one or more processors specifically represented by the processor 1101 and various circuits of the memory represented by the memory 1103 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not described further herein.
  • the bus interface provides an interface.
  • the transceiver 1102 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the user interface 1104 may also be an interface capable of externally connecting internally required equipment.
  • the connected equipment includes, but is not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1103 may store data used by the processor 1101 when performing operations.
  • an embodiment of the present disclosure further provides a network device, including a processor 1101 and a memory 1103, and a computer program stored on the memory 1103 and executable on the processor 1101.
  • the computer program is executed by the processor 1101.
  • FIG. 12 is a schematic diagram of a hardware structure of a terminal that implements various embodiments of the present disclosure.
  • the terminal 1200 includes, but is not limited to, a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, a processor 1210, and a power supply. 1211 and other components.
  • a radio frequency unit 1201 includes, but is not limited to, a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, a processor 1210, and a power supply. 1211 and other components.
  • the terminal structure shown in FIG. 12 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or some components may be combined, or different component arrangements.
  • the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer,
  • the radio frequency unit 1201 is configured to receive first channel occupation time COT information, where the first COT information is used to indicate a remaining COT;
  • the processor 1210 is configured to perform a physical downlink control channel PDCCH blind detection in the remaining COT.
  • the processor 1210 is specifically configured to receive the first COT information in a first transmission slot slot or a partial slot partial slot or a mini-slot mini-slot.
  • the processor 1210 is further configured to periodically receive the first COT after receiving the first COT information in a first transmission time slot slot or a partial time slot partial or micro-slot mini-slot. information.
  • a unit of a period for receiving the first COT information is milliseconds, a subframe, or a slot.
  • the period includes at least one slot, and the first COT information is located in any one slot in the period.
  • the unit of the remaining COT is millisecond, subframe, slot, mini-slot, or symbol symbol.
  • the remaining COT is a value rounded up in units of the remaining COT; or, the remaining COT is a value rounded down in units of the remaining COT.
  • the first COT information is carried in an initial signal, downlink control information DCI, or a sequence.
  • the initial signal is carried in a physical downlink control channel (PDCCH), or the initial signal is located at a first preset position in a PDCCH domain.
  • PDCCH physical downlink control channel
  • the sequence is located at a second preset position in a PDCCH domain.
  • the radio frequency unit 1201 may be used to receive and send signals during the transmission and reception of information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 1210; The uplink data is sent to the base station.
  • the radio frequency unit 1201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 1201 can also communicate with a network and other devices through a wireless communication system.
  • the terminal provides users with wireless broadband Internet access through the network module 1202, such as helping users to send and receive email, browse web pages, and access streaming media.
  • the audio output unit 1203 may convert audio data received by the radio frequency unit 1201 or the network module 1202 or stored in the memory 1209 into audio signals and output them as sound. Moreover, the audio output unit 1203 may also provide audio output (for example, call signal reception sound, message reception sound, etc.) related to a specific function performed by the terminal 1200.
  • the audio output unit 1203 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 1204 is used to receive audio or video signals.
  • the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042.
  • the graphics processor 12041 pairs images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frames may be displayed on the display unit 1206.
  • the image frames processed by the graphics processor 12041 may be stored in the memory 1209 (or other storage medium) or transmitted via the radio frequency unit 1201 or the network module 1202.
  • the microphone 12042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 1201 in the case of a telephone call mode and output.
  • the terminal 1200 further includes at least one sensor 1205, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 12061 according to the brightness of the ambient light, and the proximity sensor can close the display panel 12061 and / when the terminal 1200 moves to the ear. Or backlight.
  • an accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes).
  • sensor 1205 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared The sensors and the like are not repeated here.
  • the display unit 1206 is configured to display information input by the user or information provided to the user.
  • the display unit 1206 may include a display panel 12061.
  • the display panel 12061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the user input unit 1207 may be used to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the terminal.
  • the user input unit 1207 includes a touch panel 12071 and other input devices 12072.
  • the touch panel 12071 also known as a touch screen, can collect user's touch operations on or near it (for example, the user uses a finger, a stylus or any suitable object or accessory on the touch panel 12071 or near the touch panel 12071 operating).
  • the touch panel 12071 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it
  • the processor 1210 receives a command sent by the processor 1210 and executes the command.
  • various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch panel 12071.
  • the user input unit 1207 may further include other input devices 12072.
  • other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, and details are not described herein again.
  • the touch panel 12071 may be overlaid on the display panel 12061. After the touch panel 12071 detects a touch operation on or near the touch panel 12071, it is transmitted to the processor 1210 to determine the type of the touch event, and the processor 1210 then The type of event provides corresponding visual output on the display panel 12061.
  • the touch panel 12071 and the display panel 12061 are implemented as two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 12071 and the display panel 12061 can be integrated and Implement the input and output functions of the terminal, which are not limited here.
  • the interface unit 1208 is an interface through which an external device is connected to the terminal 1200.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input / output (I / O) port, video I / O port, headphone port, and more.
  • the interface unit 1208 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 1200 or may be used to communicate between the terminal 1200 and an external device. Transfer data.
  • the memory 1209 may be used to store software programs and various data.
  • the memory 1209 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store data according to Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 1209 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage device.
  • the processor 1210 is a control center of the terminal, and uses various interfaces and lines to connect various parts of the entire terminal.
  • the processor 1210 runs or executes software programs and / or modules stored in the memory 1209, and calls data stored in the memory 1209 to execute Various functions and processing data of the terminal, so as to monitor the terminal as a whole.
  • the processor 1210 may include one or more processing units; optionally, the processor 1210 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and an application program, etc.
  • the tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 1210.
  • the terminal 1200 may further include a power source 1211 (such as a battery) for supplying power to various components.
  • a power source 1211 such as a battery
  • the power source 1211 may be logically connected to the processor 1210 through a power management system, thereby implementing management of charging, discharging, and power consumption management through a power management system And other functions.
  • terminal 1200 includes some functional modules that are not shown, and details are not described herein again.
  • an embodiment of the present disclosure further provides a terminal, including a processor 1210 and a memory 1209, and a computer program stored in the memory 1209 and executable on the processor 1210.
  • a terminal including a processor 1210 and a memory 1209, and a computer program stored in the memory 1209 and executable on the processor 1210.
  • the computer program is executed by the processor 1210,
  • the processes of the embodiment of the method for indicating the transmission time of the unlicensed frequency band are implemented, and the same technical effect can be achieved. To avoid repetition, details are not described herein again.
  • An embodiment of the present disclosure further provides a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the transmission time of the unlicensed frequency band on the network device side provided by the embodiment of the present disclosure is realized Indicating the processes of the method embodiment, or when the computer program is executed by the processor, implements the processes of the method embodiment of the method for indicating the transmission time of the unlicensed frequency band on the terminal side provided by the embodiment of the present disclosure, and can achieve the same technical effect as Avoid repetitions and will not repeat them here.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

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Abstract

本公开实施例提供一种非授权频段的传输时间指示方法、网络设备和终端，该方法包括：侦听信道状态；在所述信道状态为空的情况下，指示第一信道占用时间COT信息，所述第一COT信息用于指示所述网络设备的剩余COT。

Description

非授权频段的传输时间指示方法、网络设备和终端
相关申请的交叉引用
本申请主张在2018年9月20日在中国提交的中国专利申请No.201811102328.9的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种非授权频段的传输时间指示方法、网络设备和终端。
背景技术
在未来通信系统中，非授权频段(Unlicensed Band)可以作为授权频段(Licensed Band)的补充帮助运营商对服务进行扩容。为了与新空口(New Radio,NR)部署保持一致并尽可能的最大化基于NR的非授权接入，非授权频段可以工作在5GHz，37GHz和60GHz频段。非授权频段的大带宽(80或者100MHz)能够减小基站(gNB)和用户终端(User Equipment，UE)的实施复杂度。由于非授权频段由多种技术(RATs)共用，例如WiFi、雷达和LTE-LAA等，因此在某些国家或者区域，非授权频段在使用时必须符合规则，以保证所有设备可以公平的使用该资源，例如先听后说(Listen Before Talk，LBT)和最大信道占用时间(Maximum Channel Occupancy Time，MCOT)等规则。当传输节点需要发送信息时，需要先做LBT时，对周围的节点进行功率检测(Energy Detection，ED)，当检测到的功率低于一个门限时，认为信道为空(idle)，传输节点可以进行发送。反之，则认为信道为忙，传输节点不能进行发送。传输节点可以是基站，UE和WiFi无线访问节点(Access Point，AP)等。传输节点开始传输后，信道占用时间(Channel Occupancy Time，COT)不能超过MCOT。
在非授权频段上，由于信道的状态不确定，UE无法预知基站何时可以抢到信道，同样UE无法预知基站在抢到信道后需要传输多少时间。由于NR中没有公共解调参考信号(Cell-specific Reference Signal，CRS)，无论有没有 数据，UE每次都需要进行物理下行控制信道(Physical Downlink Control Channel，PDCCH)盲检。此外，UE需要在每一个gNB可能的传输起始位置进行检测，例如symbol#0和symbol#7，PDCCH检测频率比较高。当检测到信号后，UE实际只需要在gNB的信道占用时间内的每个时隙slot的起始位置检测PDCCH即可。但是由于UE并不知道gNB的COT，终端并不知道什么时候开始按照slot为单位进行PDCCH检测。因此相关技术中的检测机制使得终端的耗电量较大。
发明内容
本公开实施例提供一种非授权频段的传输时间指示方法、网络设备和终端，以解决终端的耗电量较大的问题。
第一方面，本公开实施例提供一种非授权频段的传输时间指示方法，应用于网络设备，包括：
侦听信道状态；
在所述信道状态为空的情况下，指示第一信道占用时间COT信息，所述第一COT信息用于指示所述网络设备的剩余COT。
第二方面，本公开实施例提供一种非授权频段的传输时间指示方法，应用于终端，包括：
接收第一信道占用时间COT信息，所述第一COT信息用于指示剩余COT；
在所述剩余COT内进行物理下行控制信道PDCCH盲检。
第三方面，本公开实施例提供一种网络设备，包括：
侦听模块，用于侦听信道状态；
发送模块，用于在所述信道状态为空的情况下，指示第一信道占用时间COT信息，所述第一COT信息用于指示所述网络设备的剩余COT。
第四方面，本公开实施例提供一种终端，包括：
接收模块，用于接收第一信道占用时间COT信息，所述第一COT信息用于指示剩余COT；
检测模块，用于在所述剩余COT内进行物理下行控制信道PDCCH盲检。
第五方面，本公开实施例提供一种网络设备，包括：存储器、处理器及 存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现上述非授权频段的传输时间指示方法中的步骤。
第六方面，本公开实施例提供一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现上述非授权频段的传输时间指示方法中的步骤。
第七方面，本公开实施例提供一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现上述网络设备侧的非授权频段的传输时间指示方法的步骤，或者所述计算机程序被处理器执行时实现上述终端侧的非授权频段的传输时间指示方法的步骤。
由于网络设备在信道状态为空的情况下，指示第一信道占用时间COT信息，从而通知终端当前剩余COT的情况。因此终端可以在剩余COT内开启PDCCH盲检，在剩余COT时间外关闭PDCCH盲检。这样，本公开实施例可以降低终端耗电量。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本公开实施例可应用的一种网络系统的结构图；
图2是本公开实施例提供的一种非授权频段的传输时间指示方法的流程图；
图3是本公开实施例提供的一种非授权频段的传输时间指示方法中子载波间隔为15KHz指示第一COT信息中剩余COT分布示意之一；
图4是本公开实施例提供的一种非授权频段的传输时间指示方法中子载波间隔为15KHz指示第一COT信息中剩余COT分布示意之二；
图5是本公开实施例提供的一种非授权频段的传输时间指示方法中子载波间隔为30KHz指示第一COT信息中剩余COT分布示意之一；
图6是本公开实施例提供的一种非授权频段的传输时间指示方法中子载 波间隔为30KHz指示第一COT信息中剩余COT分布状态示意之二；
图7是本公开实施例提供的一种非授权频段的传输时间指示方法中子载波间隔为15KHz指示第一COT信息中剩余COT分布示意之三；
图8是本公开实施例提供的另一种非授权频段的传输时间指示方法的流程图；
图9是本公开实施例提供的一种网络设备的结构图；
图10是本公开实施例提供的一种终端的结构图；
图11是本公开实施例提供的另一种网络设备的结构图；
图12是本公开实施例提供的另一种终端的结构图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B，表示包含单独A，单独B，以及A和B都存在三种情况。
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
下面结合附图介绍本公开的实施例。本公开实施例提供的一种非授权频段的传输时间指示方法、网络设备和终端可以应用于无线通信系统中。该无线通信系统可以为采用5G系统，或者演进型长期演进(Evolved Long Term Evolution，eLTE)系统，或者后续演进通信系统。
请参见图1，图1是本公开实施例可应用的一种网络系统的结构图，如图1所示，包括终端11和网络设备12，其中，终端11可以是用户终端或者其他终端侧设备，例如：手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant，PDA)、移动上网装置(Mobile Internet Device，MID)或可穿戴式设备(Wearable Device)等终端侧设备，需要说明的是，在本公开实施例中并不限定终端11的具体类型。上述网络设备12可以是5G基站，或者以后版本的基站，或者其他通信系统中的基站，或者称之为节点B，演进节点B，或者传输接收点(Transmission Reception Point，TRP)，或者接入点(Access Point，AP)，或者所述领域中其他词汇，只要达到相同的技术效果，所述网络设备不限于特定技术词汇。另外，上述网络设备12可以是主节点(Master Node，MN)，或者辅节点(Secondary Node，SN)。需要说明的是，在本公开实施例中仅以5G基站为例，但是并不限定网络设备的具体类型。
请参见图2，图2是本公开实施例提供的一种非授权频段的传输时间指示方法的流程图，该方法应用于非授权频段的传输时间指示方法，如图2所示，包括以下步骤：
步骤201，侦听信道状态；
本公开实施例，提供的非授权频段的传输时间指示方法主要应用于网络设备，网络设备在需要发送数据时，首先可以进行LBT，对周围的节点功率进行检测，以侦听信道状态。具体地，当检测到的功率低于一个门限时，认为信道为空(idle)，网络设备可以进行发送。反之，则认为信道为忙，网络设备不可以进行发送。
步骤202，在所述信道状态为空的情况下，指示第一信道占用时间COT信息，所述第一COT信息用于指示所述网络设备的剩余COT。
在网络设备需要发送数据时，通常需要根据发送的数据确定总COT，该总COT小于MCOT，例如MCOT为4ms，则总COT可以为3ms。在网络设备检测到信道为空的情况下，指示第一COT信息。总COT是从信道实际传输开始计算的，上述剩余COT是总COT内除去指示第一COT信息的slot之后所剩余的信道占用时间，也可以表示从指示第一COT信息的slot开始计算 的剩余的信道占用时间。
终端在接收到网络设备指示的COT信息的后，将会根据剩余COT，决定后续PDCCH盲检的时间，即开始按照PDCCH监测周期进行PDCCH检测，也可以称之为full PDCCH检测。具体地，终端将会在COT时间内开启PDCCH盲检，在剩余COT时间外关闭PDCCH盲检。
本公开实施例中，由于网络设备在信道状态为空的情况下，指示第一信道占用时间COT信息，从而通知终端当前剩余COT的情况。因此终端可以在剩余COT内开启PDCCH盲检，在剩余COT时间外关闭PDCCH盲检。这样，本公开实施例可以降低终端耗电量。
应当说明的是，上述剩余COT的单位(即时间颗粒度)可以根据实际需要进行设置，例如在本实施例中，该剩余COT的单位为毫秒、subframe、slot、微时隙mini-slot或符号symbol。例如，若采用毫秒作为剩余COT的单位，则剩余COT可以表示为N个ms；若采用subframe作为剩余COT的单位，则剩余COT可以表示为N个subframe；若采用微时隙mini-slot，则剩余COT可以表示为N个mini-slot；若采用slot作为剩余COT的单位，则剩余COT可以表示为N个slot。
进一步地，上述剩余COT的格式可以采用整数表示，可以采用小数表示，在本实施例中为了降低指示难度，可选地，剩余COT采用整数表示。具体地，在一实施例中，剩余COT为实际剩余时间以所述剩余COT的时间颗粒度向上取整的值。例如，实际剩余COT时间大于2ms且小于3ms，则剩余COT的取值为3ms，这样，可以保证可以在所有传输的slot内开启PDCCH盲检，避免漏掉数据，从而保证了数据传输的可靠性。在另一实施例中，剩余COT为实际剩余时间以所述剩余COT的时间颗粒度向下取整的值，此时，为了避免漏掉数据，可以通过协议预先约定在接收到的剩余COT上增加1个时间单位。例如实际剩余COT时间大于2ms且小于3ms，则剩余COT的取值为2ms，终端在接收到剩余COT＝2ms时，在3ms内进行PDCCH盲检。为了更好的理解本公开，以下各实施例中剩余COT为实际剩余时间以所述剩余COT的时间颗粒度向整上取整的值作为实例进行详细说明。
一种可选的实施方式中，上述指示第一信道占用时间COT信息包括：
在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中指示所述第一COT信息。
具体地，由于子载波间隔不同，对应传输slot的划分也不同。如图3和图5所示，图3是子载波间隔为15KHz剩余COT分布示意图之一，图5是子载波间隔为30KHz剩余COT分布示意图之一。在图3中第一个slot包括LBT时间、信道占位时间channel reservation(也可以称之为LBT到第一传输的partial slot之间的间隔Gap)以及第一个传输的partial slot，此时可以在第一个传输的partial slot中指示第一COT信息。在图5中第一个传输的slot是完整的slot，此时可以在第一个传输的slot中指示第一COT信息。
由于考虑到非连续接收机制(Discontinuous Reception，DRX)的终端，若只在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中指示所述第一COT信息，此时若非连续接收机制的终端处于休眠期(DRX-OFF)，则无法接收到第一COT信息。进一步地，为了保证所有终端都能获取到剩余COT，可以周期性指示第一COT信息，使得终端在激活期(DRX-ON)时可以接收到剩余COT信息。例如，本实施例中，在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中指示所述第一COT信息之后，所述指示第一信道占用时间COT信息还包括：周期性指示所述第一COT信息。
上述方法中，在每个周期内，将会对第一COT信息进行更新，并在每个周期内指示对应的第一COT信息。
上述指示所述第一COT信息的周期的单位为毫秒、子帧subframe或slot。周期的时间长度可以根据实际需要进行设置，例如，周期的单位为毫秒，则可以采用M个毫秒作为一个周期；周期的单位subframe，则可以采用M个subframe作为一个周期；周期的单位为slot，则可以采用M个slot作为一个周期。在本实施例中，所述周期包括至少一个slot，所述第一COT信息位于所述周期内的任意一个slot中。
如图3和图4所示，子载波间隔为15KHz，可以以1个毫秒或者1个subframe或者1个slot为周期，然后周期性指示第一COT信息。此时一个周期仅包括一个slot，即在每一个slot中指示第一COT信息。
如图5和图6所示，在子载波间隔为30KHz的情况下，可以以1个毫秒 或者1个subframe或者2个slot为周期，然后周期性指示第一COT信息。此时一个周期包括两个slot，即在每个周期内，可以在首个slot中指示第一COT信息，也可以在末个slot中指示第一COT信息。应理解，由于第一COT信息是周期性的指示，因此各个周期内用于指示第一COT信息的slot的位置相同。
为了更好的理解剩余COT的定义，以下通过图3和图7为例进行说明。如图3所示，在一实施例中，以去除当前指示第一COT信息的slot计算剩余COT。网络设备总COT为3ms，在第一传输的partial slot指示剩余COT＝3ms，表示除去当前用于指示第一COT信息的partial slot，剩余的COT是3ms。具体地，COT的时间颗粒度为ms，总COT为3ms，总COT中包括channel reservation，计算后实际剩余时间小于3ms，此时向上取整为3ms，因此在第一个传输的partial slot中指示剩余COT＝3ms。类似的，在第一个full slot(即第一个周期的slot)内指示剩余COT＝2ms，实际剩余时间小于2ms，向上取整等于2ms。如图7所示，在另一实施例中，从当前指示第一COT信息的slot开始计算剩余COT。网络设备总COT为3ms，在第一传输的partial slot指示剩余COT＝3ms，表示以当前用于第一COT信息的partial slot开始计算，剩余的COT是3ms。具体地，COT的时间颗粒度为ms，总COT为3ms，总COT中包括channel reservation，计算后实际剩余时间小于3ms，此时向上取整为3ms，因此在第一个传输的partial slot中指示剩余COT＝3ms。类似的，在第一个full slot(即第一个周期的slot)内指示剩余COT＝3ms，实际剩余时间小于3ms，向上取整等于3ms。第二个full slot(即第二个周期的slot)内指示剩余COT＝2ms，实际剩余时间小于2ms，向上取整等于2ms。
进一步地，考虑到在数据传输过程中，网络设备的总COT会根据实际传输数据发生变化。例如，在数据传输过程中，新的数据到达或者需要重传数据时，网络设备的会增加COT以传输该新的数据或者需要重传的数据，此时总COT将会增加；其中，新的数据是新的数据传输，是初始传输；重传数据可以是传输失败或其他因素需要重新传输的数据。在总COT增加时，后一slot指示的剩余COT可能会比前一slot指示的剩余COT多。具体地，在本实施例中，若总COT没有发生变化，每个周期指示的所述第一COT信息对应的 剩余COT逐渐减小，具体如图3所示；若网络设备的总COT增加时，根据上一周期指示的所述第一COT信息和增加的信道占用时间，得到下一周期指示的所述第一COT信息；如图4所示，在第二full slot内指示剩余COT等于第一个full slot内指示剩余COT。需要说明的是，若增加的信道占用时间大于1个单位时间，则第二full slot内指示剩余COT可以大于第一个full slot内指示剩余COT。
例如，在图4中，若在第一个full slot内指示剩余COT＝2ms后，有新的数据到达，且新的数据使得总COT的时间增加1ms，此时可以根据第一个full slot指示的剩余COT和增加的信道占用时间1ms计算得到在第二full slot中指示的剩余COT。本实施例中，该第二full slot中指示的剩余COT与第一full slot中指示的剩余COT一致，均为2ms。因此在本实施例中，剩余COT并非单调递减，当存在新的数据到达时，将会进行调整，以保证PDCCH检测的完整性，避免数据丢失。
应理解，由于剩余COT可以采用不同的单位表示，则对应剩余COT的大小也不同。如图5和图6所示，在一实施例中，剩余COT按照1ms或1subframe为周期更新时，若子载波间隔大于15kHz，则每2n个slot更新并指示一次第一COT信息，其中n等于当前子载波间隔和15kHz之比。按照ms或者subframe为时间颗粒度更新第一COT信息时，第一COT信息的指示可以在一个subframe的第一个slot或者最后一个slot。在图5中，剩余COT的用于ms表示，除了第一个传输的slot指示的第一COT信息之外，各个周期内指示的第一COT信息均在subframe的第一个slot进行指示。如图6所示，剩余COT用slot表示时，也可以按照ms或者subframe为时间颗粒度更新第一COT信息。在图6中，n＝2＝30KHz/15KHz。
应当说明的是，对于终端自主上行传输(Autonomous UL transmission)或者免授权传输(configured grant transmission)，也可以同样按照上述实施例中的时隙指示规则指示终端的剩余COT，当指示终端的剩余COT时，可以通过在上行控制信息(Uplink control information，UCI)中增加比特指示终端的剩余COT。例如，在进行LBT监听到信道状态为空后，可以在第一个传输的slot或partial slot或微时隙mini-slot中指示终端的剩余COT。进一步地， 还可以在在第一个传输的slot或partial slot或微时隙mini-slot指示终端的剩余COT之后，再周期性指示终端的剩余COT。具体的实现过程可以参照上述实施例，在此不再赘述。
进一步地，上述第一COT信息可以承载于初始信号initial signal、下行控制信息(Downlink Control Information，DCI)或序列中。
在一实施例中，第一COT信息承载于初始信号中，该初始信号承载于物理下行控制信道PDCCH中，或者初始信号位于所述PDCCH的域中第一预设位置。
具体地，在一实施方式中，当初始信号承载于PDCCH中时，终端基于网络配置的如下一项或几项信息进行基于PDCCH DCI的initial signal的检测：
1、周期；
2、偏移；
3、控制资源集CORESET；
4、下行控制信息格式DCI format和/或下行控制信息载荷DCI size；
5、控制信道元素(Control Channel Elements aggregation，CCE)聚合等级(Aggregation Level，AL)；
6、盲检候选(blind decoding candidate，BD candidate)。
终端检测到作为initial signal的PDCCH DCI后，基于其中的指示，获取网络设备的剩余COT。终端可以在剩余COT外仅检测initial signal，终端检测到initial signal(任何形式)后，则开启如下常规操作之一：
1、常规的PDCCH监听；
2、信道状态信息(Channel State Information，CSI)测量，例如信道和/或干扰测量。
在另一实施方式中，Initial signal也可以在PDDCH域的固定位置作为独立的信号发送；该固定位置为上述第一预设位置，具体位置的设定在此不做进一步的说明。
可选地，在另一实施例中，上述第一COT信息可以承载于序列中，该序列位于PDCCH的域中第二预设位置。
本实施例中，该序列可以为类似WiFi的序列(WiFi-like preamble)或者 其他形式的序列。具体地，网络设备可以在固定位置通过WiFi-like preamble，或者其他序列指网络设备的剩余COT，例如在PDCCH的第一个symbol发送相应序列。
可选地，在又一实施例中，上述第一COT信息可以承载于DCI中，上述DCI可以为承载于组公共PDCCH(Group common PDCCH，GC-PDCCH)上的DCI，所述第一COT信息通过预设格式指示；或者，所述第一COT消息通过复用GC-PDCCH格式指示，且所述第一COT消息通过新的无线网络临时标识RNTI加扰，所述预设格式与所述GC-PDCCH格式不同。其中，上述GC-PDCCH格式为相关技术中的GC-PDCCH格式，上述第一预设格式为新的DCI format。上述DCI还可以为承载于上行或者下行调度PDCCH的DCI，所述第一COT消息通过在DCI上增加一个域指示。
进一步地，一个可选的实施例中，在上述步骤201之前，所述方法还包括：
若接收到第二COT信息，根据所述第二COT信息确定邻小区网络设备的COT结束时刻，所述COT结束时刻用于确定侦听信道状态的时刻，所述第二COT信息由所述邻小区网络设备发送，所述第二COT信息用于指示所述邻小区网络设备的剩余COT。
其中，所述网络设备发送的剩余COT，除了可以被终端接收，还可以被其他邻小区网络设备接收，同时邻小区网络设备发送的剩余COT可以被上述网络设备接收，由于邻小区网络设备在占用信道时，信道为忙，所述网络设备无法进行数据传输，因此为了减少所述网络设备LBT的时间，可以根据邻小区网络设备的COT结束时刻确定开始LBT的时间。具体地，在本实施例中上述步骤201可以包括：
在所述COT结束时刻开始侦听信道状态；或者，
在所述COT结束时刻的前一个slot/subframe侦听信道状态。
这样，由于在COT结束时刻开始侦听信道状态或者在COT结束时刻开始侦听信道状态，可以避免在邻小区网络设备传输数据的时候，上述网络设备做不必要的信道侦听，从而可以减小网络设备的耗电量。需要说明的是，上述网络设备与邻小区网络设备之间的时间是同步的。上述网络设备和邻小 区网络设备可以属于相同的运营商operator，也可以属于不同的operator。
请参见图8，图8是本公开实施例提供的另一种非授权频段的传输时间指示方法的流程图，该方法应用于终端，如图8所示，包括以下步骤：
步骤801，接收第一信道占用时间COT信息，所述第一COT信息用于指示剩余COT；
步骤802，在所述剩余COT内进行物理下行控制信道PDCCH盲检。
可选地，所述接收第一信道占用时间COT信息包括：
在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中接收所述第一COT信息。
可选地，所述在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中接收所述第一COT信息之后，所述接收第一信道占用时间COT信息还包括：
周期性接收所述第一COT信息。
可选地，接收所述第一COT信息的周期的单位为毫秒、子帧subframe或slot。
可选地，所述周期包括至少一个slot，所述第一COT信息位于所述周期内的任意一个slot中。
可选地，所述剩余COT的单位为毫秒、subframe、slot、微时隙mini-slot或符号symbol。
可选地，所述剩余COT为实际剩余时间以所述剩余COT的单位向上取整的值；或者，所述剩余COT为实际剩余时间以所述剩余COT的单位向下取整的值。
可选地，所述第一COT信息承载于初始信号、下行控制信息DCI或序列中。
可选地，所述初始信号承载于物理下行控制信道PDCCH中，或者所述初始信号位于所述PDCCH的域中第一预设位置。
可选地，所述序列位于PDCCH的域中第二预设位置。
需要说明的是，本实施例作为图2所示的实施例对应的终端的实施方式，其具体的实施方式可以参见图2所示的实施例相关说明，以及达到相同的有 益效果，为了避免重复说明，此处不再赘述。
请参见图9，图9是本公开实施例提供的一种网络设备的结构图，如图9所示，网络设备900包括：
侦听模块901，用于侦听信道状态；
发送模块902，用于在所述信道状态为空的情况下，指示第一信道占用时间COT信息，所述第一COT信息用于指示所述网络设备的剩余COT。
可选地，所述发送模块902用于在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中指示所述第一COT信息。
可选地，所述发送模块902还用于，在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中指示所述第一COT信息之后，周期性指示所述第一COT信息。
可选地，指示所述第一COT信息的周期的单位为毫秒、子帧subframe或slot。
可选地，所述周期包括至少一个slot，所述第一COT信息位于所述周期内的任意一个slot中。
可选地，若网络设备的总信道占用时间增加时，根据上一周期指示的所述第一COT信息和增加的信道占用时间，得到下一周期指示的所述第一COT信息。
可选地，所述剩余COT的单位为毫秒、subframe、slot、微时隙mini-slot或符号symbol。
可选地，所述剩余COT为实际剩余时间以所述剩余COT的单位向上取整的值；或者，所述剩余COT为实际剩余时间以所述剩余COT的单位向下取整的值。
可选地，所述第一COT信息承载于初始信号、下行控制信息DCI或序列中。
可选地，所述初始信号承载于物理下行控制信道PDCCH中，或者所述初始信号位于所述PDCCH的域中第一预设位置。
可选地，所述序列位于PDCCH的域中第二预设位置。
可选地，所述侦听信道状态之前，所述网络设备还包括：
处理模块，用于若接收到第二COT信息，根据所述第二COT信息确定邻小区网络设备的COT结束时刻，所述COT结束时刻用于确定侦听信道状态的时刻，所述第二COT信息由所述邻小区网络设备发送，所述第二COT信息用于指示所述邻小区网络设备的剩余COT。
可选地，所述侦听模块具体用于在所述COT结束时刻开始侦听信道状态；或者，在所述COT结束时刻的前一个slot/subframe侦听信道状态。
本公开实施例提供的网络设备能够实现图2的方法实施例中网络设备实现的各个过程，为避免重复，这里不再赘述，可以降低配置的资源开销。
请参见图10，图10是本公开实施例提供的一种终端的结构图，如图10所示，终端1000包括：
接收模块1001，用于接收第一信道占用时间COT信息，所述第一COT信息用于指示剩余COT；
检测模块1002，用于在所述剩余COT内进行物理下行控制信道PDCCH盲检。
可选地，所述接收模块1001具体用于，在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中接收所述第一COT信息。
可选地，所述接收模块1001还用于在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中接收所述第一COT信息之后，周期性接收所述第一COT信息。
可选地，接收所述第一COT信息的周期的单位为毫秒、子帧subframe或slot。
可选地，所述周期包括至少一个slot，所述第一COT信息位于所述周期内的任意一个slot中。
可选地，所述剩余COT的单位为毫秒、subframe、slot、微时隙mini-slot或符号symbol。
可选地，所述剩余COT为实际剩余时间以所述剩余COT的单位向上取整的值；或者，所述剩余COT为实际剩余时间以所述剩余COT的单位向下取整的值。
可选地，所述第一COT信息承载于初始信号、下行控制信息DCI或序 列中。
可选地，所述初始信号承载于物理下行控制信道PDCCH中，或者所述初始信号位于所述PDCCH的域中第一预设位置。
可选地，所述序列位于PDCCH的域中第二预设位置。
本公开实施例提供的终端能够实现图10的方法实施例中终端实现的各个过程，为避免重复，这里不再赘述。
参见图11，图11是本公开实施例提供的另一种网络设备的结构图，如图11所示，该网络设备1100包括：处理器1101、收发机1102、存储器1103和总线接口，其中：
处理器1101用于，侦听信道状态；
收发机1102用于，在所述信道状态为空的情况下，指示第一信道占用时间COT信息，所述第一COT信息用于指示所述网络设备的剩余COT。
可选地，收发机1102具体用于在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中指示所述第一COT信息。
可选地，收发机1102还用于在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中指示所述第一COT信息之后，周期性指示所述第一COT信息。
可选地，指示所述第一COT信息的周期的单位为毫秒、子帧subframe或slot。
可选地，所述周期包括至少一个slot，所述第一COT信息位于所述周期内的任意一个slot中。
可选地，若网络设备的总信道占用时间增加时，根据上一周期指示的所述第一COT信息和增加的信道占用时间，得到下一周期指示的所述第一COT信息。
可选地，所述剩余COT的单位为毫秒、subframe、slot、微时隙mini-slot或符号symbol。
可选地，所述剩余COT为实际剩余时间以所述剩余COT的单位向上取整的值；或者，所述剩余COT为实际剩余时间以所述剩余COT的单位向下取整的值。
可选地，所述第一COT信息承载于初始信号、下行控制信息DCI或序列中。
可选地，所述初始信号承载于物理下行控制信道PDCCH中，或者所述初始信号位于所述PDCCH的域中第一预设位置。
可选地，所述序列位于PDCCH的域中第二预设位置。
可选地，所述侦听信道状态之前，所述收发机1102还用于：若接收到第二COT信息，根据所述第二COT信息确定邻小区网络设备的COT结束时刻，所述COT结束时刻用于确定侦听信道状态的时刻，所述第二COT信息由所述邻小区网络设备发送，所述第二COT信息用于指示所述邻小区网络设备的剩余COT。
可选地，所述处理器1101具体用于：在所述COT结束时刻开始侦听信道状态；或者，在所述COT结束时刻的前一个slot/subframe侦听信道状态。
在图11中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1101代表的一个或多个处理器和存储器1103代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1102可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口1104还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1101负责管理总线架构和通常的处理，存储器1103可以存储处理器1101在执行操作时所使用的数据。
可选地，本公开实施例还提供一种网络设备，包括处理器1101，存储器1103，存储在存储器1103上并可在所述处理器1101上运行的计算机程序，该计算机程序被处理器1101执行时实现上述非授权频段的传输时间指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
图12为实现本公开各个实施例的一种终端的硬件结构示意图，
该终端1200包括但不限于：射频单元1201、网络模块1202、音频输出 单元1203、输入单元1204、传感器1205、显示单元1206、用户输入单元1207、接口单元1208、存储器1209、处理器1210、以及电源1211等部件。本领域技术人员可以理解，图12中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
射频单元1201，用于接收第一信道占用时间COT信息，所述第一COT信息用于指示剩余COT；
处理器1210，用于在所述剩余COT内进行物理下行控制信道PDCCH盲检。
可选地，处理器1210具体用于，在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中接收所述第一COT信息。
可选地，处理器1210还用于，在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中接收所述第一COT信息之后周期性接收所述第一COT信息。
可选地，接收所述第一COT信息的周期的单位为毫秒、子帧subframe或slot。
可选地，所述周期包括至少一个slot，所述第一COT信息位于所述周期内的任意一个slot中。
可选地，所述剩余COT的单位为毫秒、subframe、slot、微时隙mini-slot或符号symbol。
可选地，所述剩余COT为实际剩余时间以所述剩余COT的单位向上取整的值；或者，所述剩余COT为实际剩余时间以所述剩余COT的单位向下取整的值。
可选地，所述第一COT信息承载于初始信号、下行控制信息DCI或序列中。
可选地，所述初始信号承载于物理下行控制信道PDCCH中，或者所述初始信号位于所述PDCCH的域中第一预设位置。
可选地，所述序列位于PDCCH的域中第二预设位置。
应理解的是，本公开实施例中，射频单元1201可用于收发信息或通话过程中，信号的接收和发送，具体地，将来自基站的下行数据接收后，给处理器1210处理；另外，将上行的数据发送给基站。通常，射频单元1201包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元1201还可以通过无线通信系统与网络和其他设备通信。
终端通过网络模块1202为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元1203可以将射频单元1201或网络模块1202接收的或者在存储器1209中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元1203还可以提供与终端1200执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元1203包括扬声器、蜂鸣器以及受话器等。
输入单元1204用于接收音频或视频信号。输入单元1204可以包括图形处理器(Graphics Processing Unit，GPU)12041和麦克风12042，图形处理器12041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元1206上。经图形处理器12041处理后的图像帧可以存储在存储器1209(或其它存储介质)中或者经由射频单元1201或网络模块1202进行发送。麦克风12042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元1201发送到移动通信基站的格式输出。
终端1200还包括至少一种传感器1205，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板12061的亮度，接近传感器可在终端1200移动到耳边时，关闭显示面板12061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器1205还可以包括指纹传感器、压力传感器、虹膜传感器、分 子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元1206用于显示由用户输入的信息或提供给用户的信息。显示单元1206可包括显示面板12061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板12061。
用户输入单元1207可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元1207包括触控面板12071以及其他输入设备12072。触控面板12071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板12071上或在触控面板12071附近的操作)。触控面板12071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器1210，接收处理器1210发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板12071。除了触控面板12071，用户输入单元1207还可以包括其他输入设备12072。具体地，其他输入设备12072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步地，触控面板12071可覆盖在显示面板12061上，当触控面板12071检测到在其上或附近的触摸操作后，传送给处理器1210以确定触摸事件的类型，随后处理器1210根据触摸事件的类型在显示面板12061上提供相应的视觉输出。虽然在图12中，触控面板12071与显示面板12061是作为两个独立的部件来实现终端的输入和输出功能，但是在某些实施例中，可以将触控面板12071与显示面板12061集成而实现终端的输入和输出功能，具体此处不做限定。
接口单元1208为外部装置与终端1200连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/ 输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元1208可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端1200内的一个或多个元件或者可以用于在终端1200和外部装置之间传输数据。
存储器1209可用于存储软件程序以及各种数据。存储器1209可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器1209可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器1210是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器1209内的软件程序和/或模块，以及调用存储在存储器1209内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器1210可包括一个或多个处理单元；可选地，处理器1210可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器1210中。
终端1200还可以包括给各个部件供电的电源1211(比如电池)，可选地，电源1211可以通过电源管理系统与处理器1210逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端1200包括一些未示出的功能模块，在此不再赘述。
可选地，本公开实施例还提供一种终端，包括处理器1210，存储器1209，存储在存储器1209上并可在所述处理器1210上运行的计算机程序，该计算机程序被处理器1210执行时实现上述非授权频段的传输时间指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现本公开实施例提供的网络设备侧的非授权频段的传输时间指示方法实施例的各个过程，或者该计算机程序被处理器执行时实现本公开实施例提供的终端侧的非授权频段的传 输时间指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者基站等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (28)

  1. 一种非授权频段的传输时间指示方法，应用于网络设备，包括：
    侦听信道状态；
    在所述信道状态为空的情况下，指示第一信道占用时间COT信息，所述第一COT信息用于指示所述网络设备的剩余COT。
  2. 根据权利要求1所述的方法，其中，所述指示第一信道占用时间COT信息包括：
    在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中指示所述第一COT信息。
  3. 根据权利要求2所述的方法，其中，所述在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中指示所述第一COT信息之后，所述指示第一信道占用时间COT信息还包括：
    周期性指示所述第一COT信息。
  4. 根据权利要求3所述的方法，其中，指示所述第一COT信息的周期的单位为毫秒、子帧subframe或slot。
  5. 根据权利要求4所述的方法，其中，所述周期包括至少一个slot，所述第一COT信息位于所述周期内的任意一个slot中。
  6. 根据权利要求5所述的方法，其中，若网络设备的总信道占用时间增加时，根据上一周期指示的所述第一COT信息和增加的信道占用时间，得到下一周期指示的所述第一COT信息。
  7. 根据权利要求1所述的方法，其中，所述剩余COT的单位为毫秒、subframe、slot、微时隙mini-slot或符号symbol。
  8. 根据权利要求7所述的方法，其中，所述剩余COT为实际剩余时间以所述剩余COT的单位向上取整的值；或者，所述剩余COT为实际剩余时间以所述剩余COT的单位向下取整的值。
  9. 根据权利要求1所述的方法，其中，所述第一COT信息承载于初始信号、下行控制信息DCI或序列中。
  10. 根据权利要求9所述的方法，其中，所述初始信号承载于物理下行 控制信道PDCCH中，或者所述初始信号位于所述PDCCH的域中第一预设位置。
  11. 根据权利要求9所述的方法，其中，所述序列位于PDCCH的域中第二预设位置。
  12. 根据权利要求1所述的方法，其中，所述侦听信道状态之前，所述方法还包括：
    若接收到第二COT信息，根据所述第二COT信息确定邻小区网络设备的COT结束时刻，所述COT结束时刻用于确定侦听信道状态的时刻，所述第二COT信息由所述邻小区网络设备发送，所述第二COT信息用于指示所述邻小区网络设备的剩余COT。
  13. 根据权利要求12所述的方法，其中，所述侦听信道状态包括：
    在所述COT结束时刻开始侦听信道状态；或者，
    在所述COT结束时刻的前一个slot/subframe侦听信道状态。
  14. 一种非授权频段的传输时间指示方法，应用于终端，包括：
    接收第一信道占用时间COT信息，所述第一COT信息用于指示剩余COT；
    在所述剩余COT内进行物理下行控制信道PDCCH盲检。
  15. 根据权利要求14所述的方法，其中，所述接收第一信道占用时间COT信息包括：
    在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中接收所述第一COT信息。
  16. 根据权利要求15所述的方法，其中，所述在第一个传输的时隙slot或部分时隙partial slot或微时隙mini-slot中接收所述第一COT信息之后，所述接收第一信道占用时间COT信息还包括：
    周期性接收所述第一COT信息。
  17. 根据权利要求16所述的方法，其中，接收所述第一COT信息的周期的单位为毫秒、子帧subframe或slot。
  18. 根据权利要求17所述的方法，其中，所述周期包括至少一个slot，所述第一COT信息位于所述周期内的任意一个slot中。
  19. 根据权利要求14所述的方法，其中，所述剩余COT的单位为毫秒、 subframe、slot、微时隙mini-slot或符号symbol。
  20. 根据权利要求19所述的方法，其中，所述剩余COT为实际剩余时间以所述剩余COT的单位向上取整的值；或者，所述剩余COT为实际剩余时间以所述剩余COT的单位向下取整的值。
  21. 根据权利要求14所述的方法，其中，所述第一COT信息承载于初始信号、下行控制信息DCI或序列中。
  22. 根据权利要求21所述的方法，其中，所述初始信号承载于物理下行控制信道PDCCH中，或者所述初始信号位于所述PDCCH的域中第一预设位置。
  23. 根据权利要求21所述的方法，其中，所述序列位于PDCCH的域中第二预设位置。
  24. 一种网络设备，包括：
    侦听模块，用于侦听信道状态；
    发送模块，用于在所述信道状态为空的情况下，指示第一信道占用时间COT信息，所述第一COT信息用于指示所述网络设备的剩余COT。
  25. 一种终端，包括：
    接收模块，用于接收第一信道占用时间COT信息，所述第一COT信息用于指示剩余COT；
    检测模块，用于在所述剩余COT内进行物理下行控制信道PDCCH盲检。
  26. 一种网络设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至13中任一项所述的非授权频段的传输时间指示方法中的步骤。
  27. 一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求14至23中任一项所述的非授权频段的传输时间指示方法中的步骤。
  28. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至13中任一项所述的非授权频段的传输时间指示方法的步骤，或者所述计算机程序被处理器执行时实现如权利要求14至23中任一项所述的非授权频段的传输时 间指示方法的步骤。
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