WO2022151907A1 - 信道占用时间确定方法、装置、第一通信节点及存储介质 - Google Patents

信道占用时间确定方法、装置、第一通信节点及存储介质 Download PDF

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Publication number
WO2022151907A1
WO2022151907A1 PCT/CN2021/138717 CN2021138717W WO2022151907A1 WO 2022151907 A1 WO2022151907 A1 WO 2022151907A1 CN 2021138717 W CN2021138717 W CN 2021138717W WO 2022151907 A1 WO2022151907 A1 WO 2022151907A1
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Prior art keywords
communication node
cot
channel occupation
control signaling
data transmission
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PCT/CN2021/138717
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English (en)
French (fr)
Inventor
林伟
田力
徐汉青
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US18/261,803 priority Critical patent/US20240090030A1/en
Priority to EP21919095.6A priority patent/EP4280743A1/en
Publication of WO2022151907A1 publication Critical patent/WO2022151907A1/zh

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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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • 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
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information

Definitions

  • the present application relates to the field of communication technologies, for example, to a method, an apparatus, a first communication node, and a storage medium for determining channel occupancy time.
  • CCA Clear Channel Assessment
  • the present application provides a method, a device, a first communication node and a storage medium for determining the channel occupation time, which effectively determine the channel occupation time for data transmission.
  • An embodiment of the present application provides a method for determining channel occupation time, which is applied to a first communication node, including: in the case that the first communication node does not initiate channel occupation, detecting information sent by a second communication node; according to the detection result The channel occupation time COT for data transmission is determined.
  • An embodiment of the present application provides an apparatus for determining channel occupation time, which is configured on a first communication node, the apparatus includes: a detection module configured to detect a second communication when the first communication node does not initiate channel occupation The information sent by the node; the determining module is set to determine the channel occupation time COT used for data transmission according to the detection result.
  • An embodiment of the present application provides a first communication node, including: one or more processors; a storage device for storing one or more programs; when the one or more programs are processed by the one or more programs The processor executes such that the one or more processors implement the method as described above.
  • An embodiment of the present application provides a storage medium, where a computer program is stored in the storage medium, and when the computer program is executed by a processor, the method described above in the present application is implemented.
  • FIG. 1 is a schematic flowchart of a method for determining a channel occupation time provided by an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of an apparatus for determining a channel occupation time provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a first communication node according to an embodiment of the present application.
  • steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Although a logical order is shown in the flowcharts, in some cases steps shown or described may be performed in an order different from that herein.
  • the 5th Generation mobile communication technology (5G) and the first stage of the standard formulation of the New Radio (NR) technology have been completed. Judging from the trend of standard formulation and technology development, the 5G system is committed to researching technical indicators such as higher speed, massive links, ultra-low latency, higher reliability, and 100-fold improvement in energy efficiency to support new demand changes.
  • NR-based Unlicensed Spectrum (NR-based Access to Unlicensed Spectrum, NR-U) technology has great application prospects in the Internet of Things, factory automation and other aspects, but NR-U still faces many problems that need to be solved .
  • FBE mode includes three main parameters: Fixed Frame Period (FFP), channel occupancy time COT and idle period, where FFP consists of COT and idle period. The start position of the COT is aligned with the start position of the FFP, and the end position of the idle period is aligned with the end position of the FFP.
  • FFP Fixed Frame Period
  • the process of FBE initiating channel occupation is as follows: FBE performs CCA detection in the idle period adjacent to FFP.
  • FBE can obtain the COT usage right of the FFP, which can start from the start symbol of the FFP. Data is transmitted; if the CCA detects that the current channel is busy, the FBE cannot use the start symbol of the FFP for data transmission.
  • the FBE mode may also be referred to as a semi-static channel access mode.
  • the channel access procedure period of the semi-static channel access mode and the FFP are different expressions of the same parameter.
  • Both user equipment (UE) and base station can act as initiators to initiate channel occupation. Under what conditions UE needs to share the COT of the base station, and under other conditions, it needs to initiate channel occupation by itself. There is no effective rule.
  • FIG. 1 is a schematic flowchart of a method for determining a channel occupation time provided by an embodiment of the present application.
  • the method can be applied to the case of determining the COT for data transmission, and the method can be performed by a channel occupancy time determination device, which can be performed by software and/or hardware and integrated on the first communication node, the first communication node It may be a node in direct communication with the second communication node.
  • the first communication node may be a UE, and the second communication node may be a base station.
  • the method for determining the channel occupation time provided by the present application includes S110 and S120.
  • the first communication node may determine the COT used for data transmission by detecting the information sent by the second communication node.
  • the detected information can be unicast service data; it can also be group control signaling; it can also be control signaling.
  • the unicast service data includes one or more of the following: physical uplink shared channel data; physical downlink shared channel data; physical uplink control channel data; physical downlink control channel data.
  • Group control signaling may be control information sent by one device to another group of devices, while control signaling may be control information sent by one device to another device.
  • this step may determine the COT used for data transmission according to the detection result.
  • the detection result may include that the information sent by the second communication node includes unicast service data, or includes group control signaling, or includes control signaling.
  • Different detection results can determine different COTs for data transmission, which are not limited here.
  • the first communication node may share the COT of the second communication node for data transmission.
  • the first communication node may share the COT of the second communication node for data transmission.
  • the first communication node may determine the COT for data transmission based on the content indicated by the group control signaling.
  • the first communication node when the information sent by the second communication node includes group control signaling, but the first communication node fails to detect the group control signaling, the first communication node does not share the corresponding channel occupation initiated by the second communication node.
  • the COT is used for data transmission; or when the unicast service data sent by the second communication node is detected, the first communication node shares the COT corresponding to the channel occupation initiated by the second communication node; or, it is determined whether the first communication node satisfies the Initiate channel occupancy conditions to determine COT for data transmission.
  • the channel occupation time COT used for data transmission is determined according to the detection result, The COT used by the first communication node for data transmission is effectively determined.
  • the determining, according to the detection result, the channel occupation time COT for data transmission includes: sharing the second communication node when the information sent by the second communication node includes unicast service data
  • the COT corresponding to the channel occupation initiated is used for data transmission, and the first communication node does not initiate channel occupation within the COT corresponding to the channel occupation initiated by the second communication node, which is an initiating device.
  • the first communication node can share the COT included in the FFP of channel occupation initiated by the second communication node, that is, the COT corresponding to the initiating channel occupation.
  • the unicast traffic data includes one of the following: physical uplink shared channel data; physical downlink shared channel data; physical uplink control channel data; physical downlink control channel data.
  • the determining, according to the detection result, the channel occupation time COT for data transmission includes: sharing the second communication node when the information sent by the second communication node includes group control signaling
  • the COT corresponding to the channel occupation initiated is used for data transmission, and the first communication node does not initiate channel occupation within the COT corresponding to the channel occupation initiated by the second communication node, which is an initiating device.
  • the first communication node may share the COT corresponding to the channel occupation initiated by the second communication node for data transmission.
  • the determining the channel occupation time COT for data transmission according to the detection result includes: the information sent by the second communication node includes group control signaling, and the group control signaling indicates the remaining COT In the case where the length is greater than 0, the COT corresponding to the channel occupation initiated by the second communication node is shared for data transmission, and the first communication node does not initiate the COT corresponding to the channel occupation initiated by the second communication node. The channel is occupied, and the second communication node is an initiating device.
  • the COT used by the first communication node for data transmission may be further determined based on the content indicated by the group control signaling.
  • the group control signaling indicates that the length of the remaining COT is greater than 0, the first communication node shares the COT corresponding to the channel occupation initiated by the second communication node for data transmission.
  • the determining the channel occupation time COT for data transmission according to the detection result includes: the information sent by the second communication node includes group control signaling, and the group control signaling indicates the remaining COT In the case of 0, the COT corresponding to the channel occupation initiated by the second communication node is not shared for data transmission, and the first communication node does not initiate a channel in the COT corresponding to the channel occupation initiated by the second communication node Occupied, the second communication node is an initiating device.
  • this embodiment may further determine the COT used for data transmission based on the content indicated by the group control information.
  • the determining the channel occupation time COT for data transmission according to the detection result includes: the information sent by the second communication node includes group control signaling, and the group control signaling indicates the remaining COT
  • the length is a predefined row, and when the first communication node satisfies the condition for initiating channel occupation, the COT corresponding to the initiating channel occupation is used for data transmission, and the predefined row includes a row with a predefined row index or a predefined row index.
  • the definition information indicates the combined row, the second communication node as the responding device.
  • a predefined row may be understood as a pre-agreed row, such as a pre-agreed row between the first communication node and the second communication node.
  • the predefined information indicates that the combination can be understood as a combination with a predefined row index and corresponding row content. If the predefined row index is the first row, the corresponding row content is empty.
  • the conditions for initiating channel occupation include that the start position of the transmission is aligned with the start position of the FFP of the first communication node and the end position of the transmission ends before the idle period of the FFP.
  • the condition for initiating channel occupation may be that the start position of the configuration authorization transmission is aligned with the start position of the FFP, and the end position of the configuration authorization transmission is in the idle period of the FFP. end before; when the transmission is a dynamic authorized transmission, the condition for initiating channel occupation may be that the starting position of the dynamic authorized transmission is aligned with the starting position of the FFP of the first communication node and the end position of the dynamic authorized transmission is in the FFP before the idle period ends.
  • the start position of the transmission and the end position of the transmission are both within the same FFP and do not span FFPs.
  • the group control signaling includes downlink control information format 2_0.
  • the method for determining the channel occupation time includes one of the following: the second communication node transmits the group control signaling at the starting position of the COT of the fixed frame period FFP of the second communication node; The second communication node sends the group control signaling in the first transmission cluster transmitted at the starting position of the COT of the FFP of the second communication node.
  • the transmission cluster may be a transmission set of the same device, the transmission set includes multiple transmissions, and the interval between adjacent transmissions of the multiple transmissions is not greater than X microseconds, where X is a fixed value, for example 16.
  • the method for determining the channel occupancy time includes one of the following: the second communication node transmits the group control signaling at the starting position where the COT starts to be shared; the second communication node starts to share the COT at the start position The group control signaling is sent in the first transmission cluster of the transmission at the starting position.
  • the determining the channel occupation time COT for data transmission according to the detection result includes: when the group control signaling sent by the second communication node is not detected, and the second communication node is detected In the case of sending unicast service data, the COT corresponding to the channel occupation initiated by the second communication node is shared for data transmission, and the first communication node is in the COT corresponding to the channel occupation initiated by the second communication node. Channel occupation is not initiated, and the second communication node is an initiating device.
  • the determining, according to the detection result, the channel occupation time COT for data transmission includes: not sharing the second communication node in the case where the group control signaling sent by the second communication node is not detected.
  • the COT corresponding to the channel occupation initiated by the communication node is used for data transmission, the first communication node does not initiate channel occupation in the COT corresponding to the channel occupation initiated by the second communication node, and the first communication node receives the first communication node
  • the COT used for data transmission is determined according to the information indicated by the group control signaling.
  • the determining the channel occupation time COT for data transmission according to the detection result includes: when the group control signaling sent by the second communication node is not detected, and the first communication node satisfies the initiation In the case of channel occupancy conditions, channel occupancy is initiated for data transmission.
  • the method for determining the channel occupation time further includes: in the case of receiving the group control signaling transmitted by the second communication node after the channel occupation is successfully initiated, determining subsequent data transmission according to the group control signaling the COT.
  • the determining the COT for subsequent data transmission according to the group control signaling includes: in the case that the group control signaling indicates that the first communication node should not initiate channel occupation, releasing the COT Subsequent usage rights of the COT of the first communication node.
  • the method for determining channel occupancy time further includes: in the case that the group control signaling indicates that the first communication node can share the COT of the second communication node, the first communication node can share the COT of the second communication node.
  • the COT of the second communication node is shared for data transmission.
  • the method for determining channel occupancy time further includes: in the case that the group control signaling indicates that the first communication node cannot share the COT of the second communication node, the first communication node is Data is no longer transmitted in the COT of the second communication node.
  • the determining the COT of subsequent data transmission according to the group control signaling includes: in the case that the group control signaling indicates that the first communication node can initiate channel occupation, the first communication node The communication node may continue to use the initiated channel to occupy the corresponding COT for data transmission.
  • the method for determining channel occupancy time further includes: when the transmitted data is dynamic grant transmission, and the information sent by the second communication node includes control signaling for scheduling the dynamic grant transmission, and the control The signaling indicates that the CCA type is no listen before talk, and the dynamic authorization transmission is in the COT of a valid second communication node, sharing the COT of the second communication node for the dynamic authorization transmission;
  • the no-listen-before-talk is control signaling indicating that the first communication node can perform the dynamic grant transmission without performing CCA.
  • the method for determining channel occupation time further includes: in the process of sharing the COT of the second communication node by the first communication node, transmitting the COT with the second communication node according to the dynamic authorization The interval between previous transmissions in determines whether and what type of CCA to perform.
  • the method for determining channel occupation time further includes: when the transmitted data is dynamically authorized transmission, and the dynamic authorized transmission satisfies the conditions for initiating channel occupation, and the information sent by the second communication node includes scheduling dynamic transmission Control signaling for granting transmission, and the control signaling indicates that the CCA type is listen-before-talk, the first communication node acts as an initiating device to initiate channel occupation for performing the dynamic grant transmission.
  • the conditions for initiating channel occupation include: the start position of the transmission is aligned with the start position of the FFP of the first communication node and the end position of the transmission ends before the idle period of the FFP.
  • the method for determining the channel occupation time further includes: when the transmitted data is dynamic grant transmission, and the information sent by the second communication node includes control signaling for scheduling dynamic grant transmission, according to the control signaling A 1-bit field added to determine the COT used for dynamic grant transmission.
  • the present application is exemplarily described below, and the method for determining the channel occupancy time provided by the present application may be regarded as a method for sharing and initiating the channel occupancy time.
  • the equipment When the starting position of the data transmission of the device is aligned with the starting position of the fixed frame period of the equipment and the data transmission ends before the idle period of the fixed frame period, the equipment directly performs channel access to obtain the channel occupied time for data
  • the equipment directly performs channel access to obtain the channel occupied time for data
  • the problem of effective COT overlap between the UE and the base station may occur.
  • the UE transmission may use the channel initiated by the UE to occupy the corresponding COT, or it may be The COT corresponding to the channel occupied by the base station is used. Since the COT length and starting position of the two are different, there will be differences between the COT of the UE sharing the base station and the COT corresponding to the channel occupied by the UE itself for data transmission.
  • the device working in the FBE mode is used as the initiator.
  • the device can perform CCA detection in the idle period.
  • the CCA detection channel When the CCA detection channel is idle, it can occupy the COT of the next FFP next to the idle period for data transmission.
  • the response of the initiator device Devices can share the COT for data transfer.
  • the base station acts as the initiator to perform CCA detection in the idle period. If the CCA detects that the channel is idle, the base station can occupy the COT of the next FFP for data transmission, and the downlink transmission is sent first in the COT, The remaining part of the COT can be shared with other responding devices of the base station, such as UE.
  • the responding device UE can share the COT of the base station for data transmission; the starting position of the UE's data transmission is aligned with the starting position of the UE's FFP, and the data transmission is in the idle period of the FFP. If it ends before, the UE may directly initiate channel occupation as the initiating device for the data transmission.
  • a responding device For a device working in FBE mode, as a responding device, perform COT sharing for sending the data of the responding device, or as an initiating device to initiate channel occupation and use the COT corresponding to the initiated channel occupation to send the initiating device's data.
  • the data are as follows.
  • Solution 1 Device 1, that is, the first communication node does not initiate channel occupation, when the device 1 detects the unicast service data sent by device 2, that is, the second communication node, the device 1 considers that the device 2 Initiate channel occupation and obtain the corresponding COT, then the device 1 acts as the responding device of the device 2, and the responding device can share the COT corresponding to the channel occupation initiated by the initiating device (device 2) for transmitting the The service data of the responding device, and the responding device will not initiate channel occupation in the COT of the initiating device;
  • the unicast service data can be physical uplink shared channel (Physical uplink shared channel, PUSCH) data, physical Downlink shared channel (Physical downlink shared channel, PDSCH) data, Physical uplink control channel (Physical uplink control channel, PUCCH) data, Physical downlink control channel (Physical Downlink control channel, PDCCH) data or other unicast data;
  • the device 1 and the device 2 are two devices that can communicate directly, for example, the device 1
  • the base station acts as the initiator to perform CCA detection in the idle period. If the CCA detects that the channel is idle, the base station occupies the COT of the FFP next to the idle period for sending PDSCH, and the responding device UE does not initiate channel occupation, then the UE After receiving the PDSCH, it is considered that the base station initiates the channel occupation successfully, the UE can share the COT of the base station for uplink (Uplink, UL) data transmission, and the UE will not initiate the channel in the COT of the base station channel occupied.
  • uplink Uplink, UL
  • Device 1 does not initiate channel occupation.
  • the device 1 detects the group control signaling sent by device 2, the device 1 considers that the device 2 initiates channel occupation and acquires the corresponding COT.
  • the device 1 acts as the responding device of the device 2, and the responding device can share the COT corresponding to the channel occupation initiated by the initiating device (device 2) for transmitting the service data of the responding device, and the responding device is in The COT of the initiating device will not initiate channel occupation;
  • the device 1 and the device 2 are two devices that can communicate directly, for example, the device 1 is the UE and the device 2 is the base station;
  • the group control signaling can be: Downlink control information (downlink control information, DCI) format 2_0, the DCI format 2_0 includes the remaining COT length indication.
  • DCI downlink control information
  • the device 1 when the device 1 detects the group control signaling sent by the device 2 and the group control signaling indicates that the remaining COT length is greater than 0, the device 1 considers that the device 2 initiates channel occupation and Obtain the corresponding COT, then the device 1 acts as the responding device of the device 2, and considers that the current COT is the channel initiated by the initiating device (device 2) to occupy the corresponding COT, then the responding device can share the initiating device.
  • the COT corresponding to the channel occupation initiated by the device is used to transmit the service data of the responding device, and the responding device will not initiate channel occupation in the COT of the initiating device;
  • the base station acts as the initiator to perform CCA detection in the idle period. If the CCA detects that the channel is idle, the base station occupies the COT of the FFP next to the idle period for sending downlink (downlink, DL) data.
  • the DCI format 2_0 is sent in the COT to notify the UE that the remaining COT length is greater than 0; when the UE receives the remaining COT length indicated by the DCI format 2_0 is greater than 0, it is considered that the base station has initiated the channel occupation at the starting position of the configured FFP and obtained the corresponding COT.
  • the device can share the COT for data transmission and the UE cannot initiate channel occupation within the COT of the configured base station.
  • the device 1 detects the group control signaling sent by the device 2 and the group control signaling indicates that the remaining COT length is 0, the device 1 considers that the device 2 initiates channel occupation and Obtain the corresponding COT, then the device 1 acts as the responding device of the device 2, and considers that the current COT is the channel initiated by the initiating device (device 2) to occupy the corresponding COT, but the responding device cannot share the The COT corresponding to the channel occupation initiated by the initiating device is used to transmit the service data of the responding device, and the responding device will not initiate channel occupation in the COT of the initiating device;
  • the device 1 when the device 1 detects the group control signaling sent by the device 2 and the group control signaling indicates that the remaining COT length is a predefined row, the device 1 considers that the device 2 shares the device.
  • the channel initiated by 3 occupies the corresponding COT then the device 2 is the responding device of the device 3, the device 1 does not share the COT of the device 2 for the service data transmission of the device 1, and the device 1
  • the initiating device Under the condition that the initiating channel occupation is satisfied, the initiating device can directly initiate the channel occupation for the service data transmission of the device 1;
  • the specific row refers to the row with a specific row index, such as the first row or the last row,
  • the specific row may also be a row with a combination of specific information indications, such as a row indicating that the remaining COT length information is empty, or the first or last row indicating that the remaining COT length is 0;
  • the device 3 and the device 2 can communicate directly, for example, device 1 is UE1, device 2 is a base station
  • UE1, UE2, and the base station are configured with FFP respectively, and the base station does not initiate channel occupation in the idle period, or detects that the channel is busy through CCA in the idle period and fails to initiate channel occupation, UE2 performs CCA detection in the corresponding idle period, and passes CCA detects that the channel is idle, and successfully initiates channel occupation;
  • the base station shares the COT of UE2 for DL data transmission, the DL data transmission includes DCI format 2_0, and the DCI format 2_0 indicates the remaining COT length through the first row of the COT length indication list and all The first line indicates that the remaining COT length is 0;
  • UE1 receives the remaining COT length indicated by the DCI format 2_0 and the corresponding indication line index, and considers that the base station shares the COT of other devices;
  • the starting positions of the FFPs are aligned and they end before the idle period of the FFP, then UE1 can perform CCA detection in the idle period immediately before the FFP and attempt to initiate channel occupation
  • This embodiment determines a condition for a device to act as an initiating device or a responding device, that is, in the case of detecting unicast data transmission or detecting group control signaling or detecting group control signaling and the group control signaling indicating the remaining
  • the device shares the COT of the initiating device for transmission as a response device; when the device detects that the remaining COT length indicated by the group control signaling is 0, there are two cases: 1 ) The device communicating with the device is an initiating device, then the device does not initiate channel occupation within the effective COT of the initiating device; 2) The device communicating with the device shares the COT of other initiating devices, then the device The channel occupation is initiated when the conditions for initiating channel occupation are satisfied.
  • the device working in FBE mode is used as the initiator device.
  • the device can perform CCA detection in the idle period. When the CCA detection channel is idle, it can occupy the COT of the next FFP for data transmission.
  • the response device of the initiator device can be used.
  • the COT is shared for data transfer.
  • the base station acts as the initiator to perform CCA detection in the idle period. If the CCA detects that the channel is idle, the base station can occupy the COT of the next FFP for data transmission, and the downlink transmission is sent first in the COT, The remaining part of the COT can be shared with other responding devices of the base station, such as UE.
  • the responding device UE can share the COT of the base station for data transmission; the starting position of the UE's data transmission is aligned with the starting position of the UE's FFP, and the data transmission is in the idle period of the FFP. If it ends before, the UE may directly initiate channel occupation as the initiating device for the data transmission.
  • Scheme 1 As an initiating device, the device 2 transmits the group control signaling at the starting position of the COT of the FFP; as a responding device, the device 2 sends the information at the starting position that starts to share the COT of the device 3. the group control signaling;
  • the device 2 sends the group control signaling in the first transmission cluster transmitted at the starting position of the COT of the FFP; as a responding device, the device 2 starts to share the The group control signaling is sent in the first transmission cluster transmitted at the starting position of the COT; the transmission cluster is a transmission set of the same device, and the transmission set includes multiple transmissions.
  • the interval between transmissions is no more than X microseconds, where X is a fixed value, such as 16.
  • the base station acts as the initiator to perform CCA detection in the idle period. If the CCA detects that the channel is idle, the base station occupies the COT of the FFP next to the idle period for sending downlink (downlink, DL) data.
  • the starting position of the COT sends DCI format 2_0 to notify the remaining COT length, or the base station sends DCI format 2_0 in the first transmission cluster sent at the starting position of the COT to notify the remaining COT length.
  • UE1, UE2 and the base station are configured with FFP respectively.
  • the base station does not initiate channel occupation in the idle period, or detects that the channel is busy through CCA in the idle period and fails to initiate channel occupation.
  • UE2 performs CCA detection in the corresponding idle period, and passes the CCA detection.
  • the channel is idle and the channel occupation is successfully initiated; the base station shares the COT of UE2 for DL data transmission, the base station sends DCI format 2_0 at the starting position of the COT of UE2 to notify the remaining COT length, or the base station starts to share the COT of UE2
  • the DCI format 2_0 is sent in the first transmission cluster sent by the position to notify the remaining COT length.
  • Solution 1 The device 1 does not detect the group control signaling sent by the device 2 in the COT, but the device 1 detects the unicast service data sent by the device 2 to the device 1
  • the device 1 is the responding device of the device 2, and the responding device can share the COT corresponding to the channel occupation initiated by the initiating device (device 2) for transmitting the service data of the responding device, and the The responding device will not initiate channel occupation within the COT of the initiating device.
  • the base station as the initiator performs CCA detection in the idle period. If the CCA detects that the channel is idle, the base station occupies the COT of the FFP next to the idle period for DL data transmission, and the DL data transmission includes DCI format 2_0 and PDSCH , the UE does not detect DCI format 2_0, but successfully detects the PDSCH, then the UE considers that the base station acts as the initiator to initiate channel occupation and obtains the corresponding COT, and the UE can share the COT for the UE's UL data transmission.
  • Scheme 2 The device 1 does not detect the group control signaling sent by the device 2 in the COT, then the device 1 does not perform the sharing of the COT for the data transmission of the device 1.
  • the COT will not initiate channel occupation for the data transmission of the device 1; in the COT of the device 2, when the device 1 receives the group control signaling for the first time, according to the group control
  • the information indicated by the signaling and the solution 2 of Embodiment 1 determine whether the device 1 shares the COT of the device 2 or the device 1 acts as an initiator to initiate a channel occupation for the service data transmission of the device 1 .
  • the device 1 does not detect the group control signaling sent by the device 2 in the COT, and the device 1 initiates channel occupation for the device 1 under the conditions of initiating channel occupation. Data transmission; in the case where the device 1 receives the group control signaling in the COT of the device 2 after successfully initiating channel occupation as the initiating device, if the group control signaling is according to the scheme 2 of the embodiment 1 Determine that the device 1 should not initiate channel occupation, then the device 1 releases the subsequent use right of the COT corresponding to the channel occupation initiated by the device 1 after receiving the group control signaling; if the group control signaling Indicate that the device 1 can initiate channel occupation, then the device 1 can continue to use the COT corresponding to the channel occupation initiated by the device 1 for data transmission of the device 1; if the group control signaling indicates that the device 1 can If the COT of the device 2 is shared, the device 1 can use the COT of the device 2 for the service data transmission of the device 1, otherwise the device 1 cannot transmit data again in the COT of the device 2 .
  • the base station acts as the initiator to perform CCA detection in the idle period. If the CCA detects that the channel is idle, the base station occupies the COT of the FFP next to the idle period for DL data transmission, and the DL data transmission includes two DCI formats 2_0 transmission; the UE does not detect the first transmission of DCI format 2_0, the UL data transmission of the UE is aligned with the starting position of the FFP configured for the UE, and the UL data transmission is in the FFP of the UE.
  • the UE acts as the initiator to perform CCA detection in the idle period of the FFP next to the UE, and if the CCA detects that the channel is idle, the UE successfully initiates channel occupation and uses the COT to perform the UL data transmission ;
  • the UE detects DCI format 2_0 when the second DCI format 2_0 arrives, and the DCI format 2_0 indicates that the UE should not initiate channel occupation, then the UE terminates the COT of the UE after receiving the DCI format 2_0 If the DCI format 2_0 informs the UE that the COT of the base station can be shared, the UE can share the COT of the base station for the UL data transmission.
  • This embodiment determines the sending position of the group control signaling in Embodiment 1, and how the device determines the COT used for transmission by the device when the group control signaling is missed.
  • the device working in FBE mode is used as the initiator device.
  • the device can perform CCA detection in the idle period. When the CCA detection channel is idle, it can occupy the COT of the next FFP for data transmission.
  • the response device of the initiator device can be used.
  • the COT is shared for data transfer. For example, the base station as the initiator performs CCA detection in the idle period. If the CCA detects that the channel is idle, the base station can occupy the COT of the next FFP for data transmission. In the COT, downlink transmission is performed first. The remaining part of the COT can be shared with other responding devices of the base station, such as UE.
  • the responding device UE can share the COT of the base station for data transmission; the starting position of the UE's data transmission is aligned with the starting position of the UE's FFP, and the data transmission is idle in the FFP. Before the period ends, the UE may directly initiate channel occupation for the data transmission as an initiating device.
  • the present application further provides a configuration authorization data transmission method, which is applied to a first communication node.
  • the method includes: the first communication node does not initiate channel occupation, and the data transmitted by the first communication node is configuration authorization data, And if the conditions for initiating channel occupation are met, CCA detection is performed in the idle period immediately before the FFP of the first communication node; in the case of detecting that the channel is idle through CCA, the first communication node successfully initiates channel occupation and Use the initiated channel to occupy the corresponding COT transmission configuration authorization data; when the CCA detects that the channel is busy, and the next configuration authorization transmission opportunity is within the valid COT of the second communication node, and the first communication node can share all In the case of the COT of the second communication node, the COT of the second communication node is shared for transmitting configuration authorization data.
  • the COT used by the configuration authorization transmission is notified at the same time as the configuration authorization transmission is performed.
  • the configuration grant uplink control information (Configured Grant Uplink Control Information, CG-UCI ) indicates the COT used for the configuration authorization transmission; when the first communication node performs the configuration authorization transmission, and the configuration authorization transmission meets the conditions for initiating channel occupation, the channel in the COT sharing information in the CG-UCI is used
  • the access priority class (Channel Access Priority Class, CAPC) indicates the COT used for the configuration authorization transmission; in the case that the first communication node performs the configuration authorization transmission, and the configuration authorization transmission meets the conditions for initiating channel occupation, By adding 1 bit of information in the CG-UCI to indicate the COT used for the configuration authorization transmission; when the first communication node performs the configuration authorization transmission, and the configuration authorization transmission meets the conditions for initiating channel occupation, the The special combination of the offset value, duration and CAPC in the CG-UCI notifies the COT used for the configuration authorization transmission; the configuration grant uplink control information (Configured Grant Uplink Control Information, CG-UCI ) indicates the COT used for the configuration authorization transmission
  • This embodiment is exemplarily described below.
  • the start position of the configuration authorization transmission of the device 1 is aligned with the start position of the FFP of the device 1 and the end position of the configuration authorization transmission is in the idle position of the FFP If the period ends before, the device 1 performs CCA detection and initiates channel occupation in the idle period immediately before the FFP.
  • Scheme 1 If the device 1 detects that the channel is idle through CCA, the device 1 successfully initiates channel occupation and uses the COT corresponding to the initiating channel occupation for configuring authorized transmission.
  • Scheme 2 If the device 1 detects that the channel is busy through CCA, if the next configuration authorization transmission opportunity of the device 1 is within the valid COT of the device 2 that communicates directly with the device and the device 1 can share the The COT of the device 2, the device 1 shares the COT of the device 2 as a responding device for configuration authorization transmission.
  • the COT used by the configuration authorization transmission needs to be notified when the configuration authorization transmission is performed.
  • the configuration grant transmission is a configuration grant PUSCH (configured grant PUSCH, CG-PUSCH) transmission, and the COT used for the CG-PUSCH transmission is notified through the CG-UCI.
  • the COT used for the CG-PUSCH transmission is notified by the CAPC in the COT sharing information in the CG-UCI, or 1-bit information is added in the CG-UCI to indicate the COT used for the CG-PUSCH transmission. , or notify the COT used by CG-PUSCH through a special combination of the offset value, persistence length and CAPC three fields in CG-UCI, or indicate the COT used by CG-PUSCH transmission through a specific row index in CG-UCI .
  • This embodiment provides a solution for the configuration authorization transmission in a specific scenario.
  • the device directly acts as the initiating device Initiate channel occupation and use a COT corresponding to the channel occupation for the configuration authorization transmission; in the case that the device fails to initiate channel occupation as the initiating device, the subsequent transmission opportunity is still in the initiating device that communicates with the device In the COT, the device turns to the responding device to share the COT of the initiating device for transmission; and when both parties in the communication are initiating devices, how to maintain the same understanding of the COT used for transmission between the two communicating parties, that is, clear Indicates the COT used by the configuration authorization transfer.
  • the device working in FBE mode is used as the initiator device.
  • the device can perform CCA detection in the idle period. When the CCA detection channel is idle, it can occupy the COT of the next FFP for data transmission.
  • the response device of the initiator device can be used.
  • the COT is shared for data transfer. For example, the base station as the initiator performs CCA detection in the idle period. If the CCA detects that the channel is idle, the base station can occupy the COT of the next FFP for data transmission. In the COT, downlink transmission is performed first. The remaining part of the COT can be shared with other responding devices of the base station, such as UE.
  • the responding device UE can share the COT of the base station for data transmission; the starting position of the UE's data transmission is aligned with the starting position of the UE's FFP, and the data transmission is idle in the FFP. Before the period ends, the UE may directly initiate channel occupation for the data transmission as an initiating device.
  • the present application also provides a dynamic authorization data transmission method, which is applied to a first communication node.
  • the method includes: in the case that the data transmitted by the first communication node is dynamic authorization data, if the dynamic authorization transmission is in the first communication node After the start position of the FFP of the communication node, and before the idle period of the FFP ends, and the first communication node has successfully initiated channel occupation before the dynamic grant transmission is performed, the dynamic grant transmission is initiated according to the The channel occupied by the corresponding COT is executed; otherwise, the first communication node is a responding device, the dynamic authorization transmission is within the COT of the valid FFP of the initiating device, and ends before the idle period of the FFP, and the dynamic authorization is transmitted.
  • the transfer is performed by sharing the COT of the initiating device.
  • the dynamic authorization transmission corresponds to the channel occupation initiated by the device.
  • COT is executed; otherwise, the device acts as a responding device, if the dynamic authorization transmission is within the COT of the valid FFP of the initiating device and ends before the idle period of the FFP, the dynamic authorization transmission is initiated by sharing the The COT of the device is used for execution.
  • the dynamic grant transmission of the UE starts after the FFP of the UE and ends before the idle period of the FFP of the UE, if the UE has initiated channel occupation and acquired the right to use the COT of the FFP before performing the scheduled transmission, Then the UE performs the dynamic grant transmission according to the FFP of the UE; otherwise, if the UE does not initiate channel occupation before performing the scheduled transmission and the dynamic grant transmission is within the valid COT of the base station, the dynamic grant transmission passes through.
  • the COT of the shared base station is used for execution.
  • the device's dynamic grant transmission is aligned with the start of the device's FFP and ends before the idle period of the FFP,
  • the control signaling for scheduling dynamic grant transmission indicates that the CCA type of the device is no LBT, and the device acts as a responding device. If the responding device determines that the dynamic grant transmission is in the COT of a valid originating device, then The responding device shares the COT of the initiating device for the dynamic authorization transmission; whether the device needs to perform CCA and the type of CCA performed in the process of sharing the COT of the initiating device is based on the dynamic authorization transmission and the The interval between previous transmissions in the COT is determined; the no-LBT is control signaling indicating that the first communication node may perform the dynamic grant transmission without performing CCA.
  • the control signaling for scheduling dynamic grant transmission indicates that the CCA type of the device is LBT, and the device acts as an initiating device to initiate channel occupation for performing the dynamic grant transmission;
  • Scheme 3 A 1-bit field is added to the control signaling for scheduling dynamic grant transmission to indicate that the device shares the COT of the initiating device or that the device initiates channel occupation for the dynamic grant transmission.
  • This embodiment is based on a dynamic scheduling authorization transmission scheme for a specific scenario.
  • the dynamic authorization transmission of the device is scheduled after the start position of the FFP of the device and is aligned with the start position of the FFP of the device.
  • the channel initiated by itself occupies the corresponding COT for execution.
  • FIG. 2 is a schematic structural diagram of an apparatus for determining a channel occupation time provided by an embodiment of the present application.
  • the device can be configured on the first communication node, and the device includes: a detection module 21, configured to detect information sent by the second communication node when the first communication node does not initiate channel occupation; a determination module 22, configured to In order to determine the channel occupation time COT for data transmission according to the detection result.
  • the device for determining the channel occupation time provided in this embodiment is set to implement the method for determining the channel occupation time in the embodiment of the present application.
  • the implementation principle and technical effect of the device for determining the channel occupation time provided in this embodiment are the same as the method for determining the channel occupation time in the embodiment of the present application. similar, and will not be repeated here.
  • the determining module 22 is configured to: in the case that the information sent by the second communication node includes unicast service data, share the COT corresponding to the channel occupation initiated by the second communication node for data transmission , the first communication node does not initiate channel occupation in the COT corresponding to the channel occupation initiated by the second communication node, and the second communication node is an initiating device.
  • the unicast traffic data includes one of the following: physical uplink shared channel data; physical downlink shared channel data; physical uplink control channel data; physical downlink control channel data.
  • the determining module 22 is configured to: in the case that the information sent by the second communication node includes group control signaling, share the COT corresponding to the channel occupation initiated by the second communication node for data transmission , the first communication node does not initiate channel occupation in the COT corresponding to the channel occupation initiated by the second communication node, and the second communication node is an initiating device.
  • the determining module 22 is configured to: share the group control signaling when the information sent by the second communication node includes group control signaling, and the group control signaling indicates that the length of the remaining COT is greater than 0.
  • the COT corresponding to the channel occupation initiated by the second communication node is used for data transmission, the first communication node does not initiate channel occupation in the COT corresponding to the channel occupation initiated by the second communication node, and the second communication node initiates the channel occupation. equipment.
  • the determining module 22 is configured to: in the case that the information sent by the second communication node includes group control signaling, and the group control signaling indicates that the remaining COT is 0, the first communication node is not shared.
  • the COT corresponding to the channel occupation initiated by the second communication node is used for data transmission, the first communication node does not initiate channel occupation in the COT corresponding to the channel occupation initiated by the second communication node, and the second communication node is the initiating device .
  • the determining module 22 is configured to: the information sent by the second communication node includes group control signaling, and the group control signaling indicates that the remaining COT length is a predefined line, and the first When the communication node satisfies the condition for initiating channel occupation, the COT corresponding to the initiating channel occupation is used for data transmission, and the predefined row includes a row with a predefined row index or a row with predefined information indicating a combination, and the second The communication node acts as a responding device.
  • the group control signaling includes downlink control information format 2_0.
  • the device for determining channel occupation time includes one of the following: the second communication node transmits the group control signaling at the start position of the COT of the fixed frame period FFP of the second communication node; The second communication node sends the group control signaling in the first transmission cluster transmitted at the starting position of the COT of the FFP of the second communication node.
  • the device for determining channel occupancy time includes one of the following: the second communication node transmits the group control signaling at the starting position where the COT starts to be shared; the second communication node starts to share the COT at the starting position The group control signaling is sent in the first transmission cluster of the transmission at the starting position.
  • the determining module 22 is configured to: in the case where the group control signaling sent by the second communication node is not detected, and the unicast service data sent by the second communication node is detected, share the The COT corresponding to channel occupation initiated by the second communication node is used for data transmission, the first communication node does not initiate channel occupation in the COT corresponding to the channel occupation initiated by the second communication node, and the second communication node is: Initiating device.
  • the determining module 22 is configured to: in the case where the group control signaling sent by the second communication node is not detected, the COT corresponding to the channel occupation initiated by the second communication node is not shared for use in For data transmission, the first communication node does not initiate channel occupation in the COT corresponding to the channel occupation initiated by the second communication node, and when the first communication node receives the group control signaling for the first time, according to the The information indicated by the group control signaling determines the COT used for data transmission.
  • the determining module 22 is configured to: initiate channel occupation if the group control signaling sent by the second communication node is not detected and the first communication node satisfies the condition for initiating channel occupation for data transfer.
  • the device for determining channel occupation time further includes: a subsequent COT determination module, configured to: in the case of receiving the group control signaling transmitted by the second communication node after successfully initiating channel occupation, according to the Group control signaling determines the COT for subsequent data transmissions.
  • the subsequent COT determination module is configured to: in the case that the group control signaling indicates that the first communication node should not initiate channel occupation, release the subsequent use right of the COT of the first communication node .
  • the device for determining channel occupancy time further includes: in the case that the group control signaling indicates that the first communication node can share the COT of the second communication node, the first communication node can share the COT of the second communication node. sharing the COT of the second communication node for data transmission,
  • the apparatus for determining channel occupancy time further includes: when the group control signaling indicates that the first communication node cannot share the COT of the second communication node, the first communication node is Data is no longer transmitted in the COT of the second communication node.
  • the subsequent COT determination module is configured to: in the case that the group control signaling indicates that the first communication node can initiate channel occupation, the first communication node can continue to use the initiated channel The corresponding COT is occupied for data transmission.
  • the device for determining channel occupancy time further includes: a sharing module, configured to: the data to be transmitted is dynamic authorized transmission, and the information sent by the second communication node includes a control information for scheduling the dynamic authorized transmission If the control signaling indicates that the CCA type is no listen before talk, and the dynamic grant transmission is in the COT of a valid second communication node, the COT of the second communication node is shared for all the dynamic authorization transmission; the no-listen-before-talk is a control signaling indicating that the first communication node can perform the dynamic authorization transmission without performing CCA.
  • a sharing module configured to: the data to be transmitted is dynamic authorized transmission, and the information sent by the second communication node includes a control information for scheduling the dynamic authorized transmission If the control signaling indicates that the CCA type is no listen before talk, and the dynamic grant transmission is in the COT of a valid second communication node, the COT of the second communication node is shared for all the dynamic authorization transmission; the no-listen-before-talk is a control signaling indicating that the first communication node can
  • the channel occupancy time determining module further includes: a CCA determining module, configured to: in the process of sharing the COT of the second communication node, the first communication node transmits data with the The interval between previous transmissions in the COT of the second communication node determines whether and what type of CCA to perform.
  • a CCA determining module configured to: in the process of sharing the COT of the second communication node, the first communication node transmits data with the The interval between previous transmissions in the COT of the second communication node determines whether and what type of CCA to perform.
  • the channel occupancy time determining module further includes: an initiating module, configured to: the data to be transmitted is dynamically authorized transmission, and the dynamic authorized transmission satisfies the conditions for initiating channel occupation, and the second communication node
  • the information sent includes control signaling for scheduling dynamic grant transmission, and when the control signaling indicates that the CCA type is listen-before-talk, the first communication node acts as an initiating device to initiate channel occupation for executing the dynamic grant transmission.
  • the conditions for initiating channel occupation include: the start position of the transmission is aligned with the start position of the FFP of the first communication node and the end position of the transmission ends before the idle period of the FFP.
  • the device for determining channel occupancy time further includes: a COT determination module, configured to: the data being transmitted is dynamic authorized transmission, and the information sent by the second communication node includes control signaling for scheduling dynamic authorized transmission , the COT used for dynamic authorization transmission is determined according to the 1-bit field added in the control signaling.
  • a COT determination module configured to: the data being transmitted is dynamic authorized transmission, and the information sent by the second communication node includes control signaling for scheduling dynamic authorized transmission , the COT used for dynamic authorization transmission is determined according to the 1-bit field added in the control signaling.
  • FIG. 3 is a schematic structural diagram of a first communication node according to an embodiment of the present application.
  • the first communication node provided by the present application includes one or more processors 31 and a storage device 32 ; the processors 31 in the first communication node may be one or more, and in FIG. Take the processor 31 as an example; the storage device 32 is configured to store one or more programs; the one or more programs are executed by the one or more processors 31, so that the one or more processors 31 implement the The method for determining the channel occupation time described in the application embodiments.
  • the first communication node further includes: a communication device 33 , an input device 34 and an output device 35 .
  • the processor 31 , the storage device 32 , the communication device 33 , the input device 34 and the output device 35 in the first communication node may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 3 .
  • the input device 34 may be configured to receive input numerical or character information, and to generate key signal input related to user settings and function control of the first communication node.
  • the output device 35 may include a display device such as a display screen.
  • the communication device 33 may include a receiver and a transmitter.
  • the communication device 33 is configured to transmit and receive information according to the control of the processor 31 .
  • the storage device 32 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the method for determining the channel occupancy time described in the embodiments of the present application (for example, the channel occupancy time). Determine the detection module 21 and the determination module 22) in the device.
  • the storage device 32 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the device, and the like.
  • storage device 32 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • storage device 32 may further include memory located remotely relative to processor 31, and these remote memories may be connected to the first communication node through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • Embodiments of the present application further provide a storage medium, where a computer program is stored in the storage medium, and when the computer program is executed by a processor, any one of the methods described in the present application is implemented, and the storage medium stores a computer program, and the computer
  • the method for determining the channel occupation time provided by the embodiment of the present application is implemented.
  • the method includes: in the case that the first communication node does not initiate channel occupation, detecting information sent by the second communication node; and determining the channel occupation time COT for data transmission according to the detection result.
  • the computer storage medium of the embodiments of the present application may adopt any combination of one or more computer-readable media.
  • the computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium.
  • the computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above.
  • Examples (a non-exhaustive list) of computer-readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (Read- Only Memory, ROM), Erasable Programmable Read Only Memory (EPROM), Flash Memory, Optical Fiber, Portable Optical Disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM), Optical Storage Devices, Magnetic memory device, or any suitable combination of the above.
  • a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave, with computer-readable program code embodied thereon. Such propagated data signals may take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .
  • the program code embodied on the computer readable medium can be transmitted by any suitable medium, including but not limited to: wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the above.
  • suitable medium including but not limited to: wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the above.
  • Computer program code for performing the operations of the present application may be written in one or more programming languages, including object-oriented programming languages—such as Java, Smalltalk, C++, but also conventional Procedural programming language - such as the "C" language or similar programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server.
  • the remote computer can be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or it can be connected to an external computer (eg using an internet service provider to connect via the internet).
  • LAN Local Area Network
  • WAN Wide Area Network
  • the first communication node encompasses any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a vehicle mounted mobile station.
  • the various embodiments of the present application may be implemented in hardware or special purpose circuits, software, logic, or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
  • Embodiments of the present application may be implemented by the execution of computer program instructions by a data processor of a mobile device, eg in a processor entity, or by hardware, or by a combination of software and hardware.
  • Computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages source or object code.
  • ISA Instruction Set Architecture
  • the block diagrams of any logic flow in the figures of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions.
  • Computer programs can be stored on memory.
  • the memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, ROM, RAM, optical memory devices and systems (Digital Video Disc, DVD) or optical disk ( Compact Disk, CD)) etc.
  • Computer-readable media may include non-transitory storage media.
  • the data processor may be of any type suitable for the local technical environment, such as, but not limited to, a general purpose computer, a special purpose computer, a microprocessor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC) ), programmable logic devices (Field-Programmable Gate Array, FPGA) and processors based on multi-core processor architecture.
  • a general purpose computer such as, but not limited to, a general purpose computer, a special purpose computer, a microprocessor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC) ), programmable logic devices (Field-Programmable Gate Array, FPGA) and processors based on multi-core processor architecture.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array

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Abstract

本申请提供了信道占用时间确定方法、装置、第一通信节点及存储介质，该方法应用于第一通信节点，包括：在所述第一通信节点未发起信道占用的情况下，检测第二通信节点发送的信息；根据检测结果确定用于数据传输的信道占用时间COT。

Description

信道占用时间确定方法、装置、第一通信节点及存储介质 技术领域
本申请涉及通信技术领域，例如涉及信道占用时间确定方法、装置、第一通信节点及存储介质。
背景技术
非授权频谱的使用需要遵循一定的管制政策，例如设备在使用非授权载波发送数据之前必须执行空闲信道评估(Clear Channel Assessment，CCA)，只有通过CCA检测信道为空闲的设备才能在非授权载波上占用信道发送数据。
然而，在特定条件下，设备作为发起设备直接执行信道接入获取信道占用时间(channel occupancy time，COT)用于数据传输还是作为响应设备共享COT用于数据传输，并没有有效的方案。
发明内容
本申请提供信道占用时间确定方法、装置、第一通信节点及存储介质，有效的确定了用于数据传输的信道占用时间。
本申请实施例提供了一种信道占用时间确定方法，应用于第一通信节点，包括：在所述第一通信节点未发起信道占用的情况下，检测第二通信节点发送的信息；根据检测结果确定用于数据传输的信道占用时间COT。
本申请实施例提供了一种信道占用时间确定装置，配置于第一通信节点，所述装置包括：检测模块，设置为在所述第一通信节点未发起信道占用的情况下，检测第二通信节点发送的信息；确定模块，设置为根据检测结果确定用于数据传输的信道占用时间COT。
本申请实施例提供了一种第一通信节点，包括：一个或多个处理器；存储装置，用于存储一个或多个程序；当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如上述所述的方法。
本申请实施例提供了一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请上述所述的方法。
附图说明
图1为本申请实施例提供的一种信道占用时间确定方法的流程示意图；
图2为本申请实施例提供的一种信道占用时间确定装置的结构示意图；
图3为本申请实施例提供的一种第一通信节点的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚明白，下文中将结合附图对本申请的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。虽然在流程图中示出了逻辑顺序，但是在一些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
第五代移动通信技术(the 5th Generation mobile communication technology，5G)，新空口(New Radio，NR)技术的第一阶段的标准制定工作已经完成。从标准制定和技术发展的趋势来看，5G系统致力于研究更高速率、巨量链接、超低时延、更高的可靠性、百倍的能量效率提升等技术指标以支撑新的需求变化。基于NR的非授权频谱接入(NR-based Access to Unlicensed Spectrum，NR-U)技术在物联网、工厂自动化等多个方面都有很大的应用前景，但NR-U还面临诸多问题需要解决。
对于非授权频谱的使用需要遵循一定的管制政策，例如设备在使用非授权载波发送数据之前必须执行CCA，也可以称为先听后说(Listen Before Talk，LBT)，只有通过CCA检测信道为空闲的设备才能在非授权载波上占用信道发送数据。基于帧结构的设备(Frame based equipment，FBE)模式包含三个主要参数：固定帧周期(Fixed Frame Period，FFP)，信道占用时间COT和空闲周期，其中，FFP由COT和空闲周期两部分组成，COT的起始位置与FFP的起始位置对齐，空闲周期的结束位置与FFP的结束位置对齐。FBE发起信道占用的过程为：FBE在紧邻FFP的空闲周期中执行CCA检测，若CCA检测当前信道为空闲，则FBE可以获取所述FFP的COT使用权，可以从所述FFP的起始符号开始传输数据；若通过CCA检测当前信道为忙，则所述FBE不能使用所述FFP的起始符号用于数据传输。FBE模式也可以称为半静态信道接入模式，半静态信道接入模式的信道接入流程周期与FFP是同一个参数的不同表述方式。
用户设备(user equipment，UE)和基站都可以作为发起设备发起信道占用，UE在什么条件下需要共享基站的COT，而在其他条件下需要自己发起信道占用，并没有有效的规则。
在一个示例性实施方式中，图1为本申请实施例提供的一种信道占用时间确定方法的流程示意图。该方法可以适用于确定用于数据传输的COT的情况，该方法可以由信道占用时间确定装置执行，该装置可以由软件和/或硬件执行，并集成在第一通信节点上，第一通信节点可以为与第二通信节点直接通信的节点。示例性的，第一通信节点可以为UE，第二通信节点可以为基站。
如图1所示，本申请提供的信道占用时间确定方法，包括S110和S120。
S110、在所述第一通信节点未发起信道占用的情况下，检测第二通信节点发送的信息。
在本实施例中，第一通信节点可以通过检测第二通信节点发送的信息确定用于数据传输的COT。所检测的信息可以为单播业务数据；也可以为组控制信令；也可以为控制信令。单播业务数据包括如下一个或多个：物理上行链路共享信道数据；物理下行链路共享信道数据；物理上行链路控制信道数据；物理下行链路控制信道数据。组控制信令可以为一个设备发送给另一组设备的控制信息，而控制信令可以为一个设备发送给另一个设备的控制信息。
S120、根据检测结果确定用于数据传输的信道占用时间COT。
在检测第二通信节点发送的数据后，本步骤可以根据检测结果确定用于数据传输的COT。检测结果可以包括第二通信节点发送的信息包括单播业务数据，或者包括组控制信令，或包括控制信令。
不同的检测结果可以确定不同的用于数据传输的COT，此处不作限定。
在一个示例中，在检测结果为第二通信节点发送的信息包括单播业务数据的情况下，第一通信节点可以共享第二通信节点的COT用于数据传输。
在一个示例中，在第二通信节点发送的信息包括组控制信令的情况下，第一通信节点可以共享第二通信节点的COT用于数据传输。
在一个示例中，在第二通信节点发送的信息包括组控制信令的情况下，第一通信节点可以基于组控制信令指示的内容确定用于数据传输的COT。
在一个示例中，在第二通信节点发送的信息包括组控制信令，但第一通信节点漏检组控制信令的情况下，第一通信节点不共享第二通信节点发起的信道占用对应的COT用于数据传输；或者在检测到第二通信节点发送的单播业务数据的情况下，第一通信节点共享第二通信节点发起的信道占用对应的COT；或者，确定第一通信节点是否满足发起信道占用的条件，以确定用于数据传输的COT。
本申请提供的一种信道占用时间确定方法，在所述第一通信节点未发起信 道占用的情况下，检测第二通信节点发送的信息；根据检测结果确定用于数据传输的信道占用时间COT，有效的确定了第一通信节点用于数据传输的COT。
在上述实施例的基础上，提出了上述实施例的变型实施例，在此需要说明的是，为了使描述简要，在变型实施例中仅描述与上述实施例的不同之处。
在一个实施例中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：在所述第二通信节点发送的信息包括单播业务数据的情况下，共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在检测结果为第二通信节点发送的信息包括单播业务数据的情况下，第一通信节点可以共享第二通信节点发起的信道占用的FFP所包括的COT，即发起信道占用对应的COT。
在一个实施例中，所述单播业务数据包括如下之一：物理上行链路共享信道数据；物理下行链路共享信道数据；物理上行链路控制信道数据；物理下行链路控制信道数据。
在一个实施例中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：在所述第二通信节点发送的信息包括组控制信令的情况下，共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在检测结果为第二通信节点发送的信息包括组控制信令的情况下，第一通信节点可以共享第二通信节点发起的信道占用对应的COT用于数据传输。
在一个实施例中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：在所述第二通信节点发送的信息包括组控制信令，且所述组控制信令指示剩余COT的长度大于0的情况下，共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在本实施例中，在检测结果为第二通信节点发送的信息包括组控制信令的情况下，可以基于组控制信令指示的内容进一步确定第一通信节点用于数据传输的COT。示例性的，在组控制信令指示剩余COT的长度大于0的情况下，第一通信节点共享第二通信节点发起的信道占用对应的COT用于数据传输。
在一个实施例中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：在所述第二通信节点发送的信息包括组控制信令，且所述组控制 信令指示剩余COT为0的情况下，不共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在检测结果为第二通信节点发送的信息包括组控制信令的情况下，本实施例可以进一步基于组控制信息指示的内容确定用于数据传输的COT。
在一个实施例中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：在所述第二通信节点发送的信息包括组控制信令，且所述组控制信令指示剩余COT长度为预定义行，且所述第一通信节点满足发起信道占用的条件的情况下，发起信道占用对应的COT用于数据传输，所述预定义行包括有预定义行索引的行或者有预定义信息指示组合的行，所述第二通信节点作为响应设备。
预定义行可以理解为预先约定的行，如第一通信节点和第二通信节点预先约定的行。
预定义信息指示组合可以理解为有预定义行索引和对应的行内容的组合。如预定义行索引为第一行，对应的行内容为空。
发起信道占用的条件包括传输的起始位置与第一通信节点的FFP的起始位置对齐且传输的结束位置在所述FFP的空闲周期之前结束。示例性的，在传输为配置授权传输的情况下，发起信道占用的条件可以为配置授权传输的起始位置与FFP的起始位置对齐，且配置授权传输的结束位置在所述FFP的空闲周期之前结束；在传输为动态授权传输的情况下，发起信道占用的条件可以为动态授权传输的起始位置与第一通信节点的FFP的起始位置对齐且动态授权传输的结束位置在所述FFP的空闲周期之前结束。
传输的起始位置和传输的结束位置均在同一个FFP内，不跨FFP。
在一个实施例中，所述组控制信令包括下行链路控制信息格式2_0。
在一个实施例中，信道占用时间确定方法，包括如下之一：所述第二通信节点在所述第二通信节点的固定帧周期FFP的COT的起始位置传输所述组控制信令；所述第二通信节点在所述第二通信节点的FFP的COT的起始位置传输的首个传输簇中发送所述组控制信令。
所述传输簇可以为同一设备的传输集合，在所述传输集合中包含多个传输，所述多个传输的相邻传输之间的间隔不大于X微秒，所述X为固定值，例如16。
在一个实施例中，信道占用时间确定方法，包括如下之一：所述第二通信节点在开始共享COT的起始位置传输所述组控制信令；所述第二通信节点在开始共享COT的起始位置传输的首个传输簇中发送所述组控制信令。
在一个实施例中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：在未检测到所述第二通信节点发送的组控制信令，且检测到所述第二通信节点发送的单播业务数据的情况下，共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在一个实施例中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：在未检测到所述第二通信节点发送的组控制信令的情况下，不共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，在所述第一通信节点首次收到组控制信令的情况下，根据所述组控制信令指示的信息确定用于数据传输的COT。
在一个实施例中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：在未检测到所述第二通信节点发送的组控制信令，且所述第一通信节点满足发起信道占用的条件的情况下，发起信道占用用于数据传输。
在一个实施例中，信道占用时间确定方法，还包括：在成功发起信道占用后收到所述第二通信节点传输的组控制信令的情况下，根据所述组控制信令确定后续数据传输的COT。
在一个实施例中，所述根据所述组控制信令确定后续数据传输的COT，包括：在所述组控制信令指示所述第一通信节点不应发起信道占用的情况下，释放所述第一通信节点的COT的后续使用权。
在一个实施例中，信道占用时间确定方法，还包括：在所述组控制信令指示所述第一通信节点可共享所述第二通信节点的COT的情况下，所述第一通信节点可共享所述第二通信节点的COT用于数据传输。
在一个实施例中，信道占用时间确定方法，还包括：在所述组控制信令指示所述第一通信节点不可共享所述第二通信节点的COT的情况下，所述第一通信节点在所述第二通信节点的COT中不再传输数据。
在一个实施例中，所述根据所述组控制信令确定后续数据传输的COT，包括：在所述组控制信令指示所述第一通信节点可发起信道占用的情况下，所述第一通信节点可继续使用发起的信道占用对应的COT用于数据传输。
在一个实施例中，信道占用时间确定方法，还包括：在传输的数据为动态授权传输，且所述第二通信节点发送的信息包括调度所述动态授权传输的控制信令，且所述控制信令指示CCA类型为无先听后说，且所述动态授权传输在有效的第二通信节点的COT中的情况下，共享所述第二通信节点的COT用于所 述动态授权传输；
所述无先听后说为控制信令指示第一通信节点可以不执行CCA即可执行所述动态授权传输。
在一个实施例中，信道占用时间确定方法，还包括：所述第一通信节点在共享所述第二通信节点的COT的过程中，根据所述动态授权传输与所述第二通信节点的COT中之前的传输之间的间隔确定是否执行CCA以及执行的CCA类型。
在一个实施例中，信道占用时间确定方法，还包括：在传输的数据为动态授权传输，且所述动态授权传输满足发起信道占用的条件，且所述第二通信节点发送的信息包括调度动态授权传输的控制信令，且所述控制信令指示CCA类型为先听后说的情况下，所述第一通信节点作为发起设备发起信道占用用于执行所述动态授权传输。
在一个实施例中，发起信道占用的条件包括：传输的起始位置与第一通信节点的FFP的起始位置对齐且传输的结束位置在所述FFP的空闲周期之前结束。
在一个实施例中，信道占用时间确定方法，还包括：在传输的数据为动态授权传输，且所述第二通信节点发送的信息包括调度动态授权传输的控制信令，根据所述控制信令中增加的1比特字段确定动态授权传输所使用的COT。
以下对本申请进行示例性的描述，本申请提供的信道占用时间确定方法可以认为是一种信道占用时间共享和发起的方法。
设备的数据传输的起始位置与设备的固定帧周期的起始位置对齐且数据传输在所述固定帧周期的空闲周期之前结束的情况下，设备直接执行信道接入获取信道占用时间用于数据传输还是共享发起设备的信道占用时间用于数据传输，还没有有效的方案；同时，也没有避免互相通信的两个设备同时作为发起设备导致信道占用时间同时有效的方案存在，即在UE和基站都可以作为发起设备发起信道占用的情况下，可能会出现UE和基站的有效COT重叠问题，在存在有效的COT重叠的情况下，UE的传输可能使用UE发起的信道占用对应的COT，也可能使用基站发起的信道占用对应的COT，由于二者的COT长度和起始位置存在差异，所以UE共享基站的COT和UE自己发起信道占用对应的COT用于传输数据也会存在差异，所以在UE执行数据传输的情况下需要指示UE执行数据传输所使用的COT，或者避免同时出现UE和基站的COT重叠的情况；本申请主要确定设备发起信道占用的触发条件以及避免互相通信的两个设备同时作为发起设备导致出现重叠有效的COT。
实施例1
工作在FBE模式下的设备作为发起设备，该设备可以在空闲周期执行CCA检测，通过CCA检测信道为空闲就可以占用紧邻空闲周期的下一个FFP的COT用于数据传输，所述发起设备的响应设备可以共享所述COT用于数据传输。例如，基站作为发起设备在空闲周期执行CCA检测，若通过CCA检测信道为空闲，则基站就可以占用紧邻的下一个FFP的COT用于数据传输，在所述COT中首先发送下行链路传输，所述COT的剩余部分可以共享给基站的其他响应设备，如UE。基站发起信道占用的情况下，响应设备UE可以共享基站的COT用于数据传输；UE的数据传输的起始位置与UE的FFP的起始位置对齐且所述数据传输在所述FFP的空闲周期之前结束，则UE可以作为发起设备直接发起信道占用用于所述数据传输。
对于一个工作在FBE模式下的设备，作为响应设备执行COT共享用于发送所述响应设备的数据，还是作为发起设备发起信道占用并使用所述发起的信道占用对应的COT发送所述发起设备的数据，有如下方案。
方案1：设备1，即第一通信节点没有发起信道占用，所述设备1在检测到设备2，即第二通信节点发送的单播业务数据的情况下，所述设备1认为所述设备2发起信道占用并获取到对应的COT，则所述设备1作为所述设备2的响应设备，所述响应设备可以共享所述发起设备(设备2)发起的信道占用对应的COT用于传输所述响应设备的业务数据，且所述响应设备在所述发起设备的COT内不会发起信道占用；所述单播业务数据可以是物理上行链路共享信道(Physical uplink shared channel，PUSCH)数据、物理下行链路共享信道(Physical downlink shared channel，PDSCH)数据、物理上行链路控制信道(Physical uplink control channel，PUCCH)数据、物理下行链路控制信道(Physical downlink control channel，PDCCH)数据或其他单播数据；所述设备1和所述设备2为两个可以直接通信的设备，如设备1为UE，设备2为基站。
例如，基站作为发起设备在空闲周期执行CCA检测，若通过CCA检测信道为空闲，则基站占用紧邻所述空闲周期的FFP的COT用于发送PDSCH，响应设备UE未发起信道占用，则所述UE在接收到PDSCH之后，认为基站发起信道占用成功，所述UE可以共享所述基站的COT用于上行链路(Uplink，UL)数据传输，且在所述基站的COT内所述UE不会发起信道占用。
方案2：设备1没有发起信道占用，所述设备1在检测到设备2发送的组控制信令的情况下，所述设备1认为所述设备2发起信道占用并获取到对应的COT，则所述设备1作为所述设备2的响应设备，所述响应设备可以共享所述发起设备(设备2)发起的信道占用对应的COT用于传输所述响应设备的业务数据，且所述响应设备在所述发起设备的COT内不会发起信道占用；所述设备 1和所述设备2为两个可以直接通信的设备，如设备1为UE，设备2为基站；所述组控制信令可以是下行链路控制信息(downlink control information，DCI)格式2_0，所述DCI格式2_0包含剩余COT长度指示。
进一步的，所述设备1在检测到所述设备2发送的组控制信令且所述组控制信令指示剩余COT长度大于0的情况下，所述设备1认为所述设备2发起信道占用并获取到对应的COT，则所述设备1作为所述设备2的响应设备，认为当前COT为所述发起设备(设备2)发起的信道占用对应的COT，则所述响应设备可以共享所述发起设备发起的信道占用对应的COT用于传输所述响应设备的业务数据，且所述响应设备在所述发起设备的COT内不会发起信道占用；
例如，基站作为发起设备在空闲周期执行CCA检测，若通过CCA检测信道为空闲，则基站占用紧邻所述空闲周期的FFP的COT用于发送下行链路(downlink，DL)数据，基站在所述COT内发送DCI格式2_0通知UE剩余COT长度大于0；UE收到DCI格式2_0指示的剩余COT长度大于0，认为基站在配置的FFP的起始位置发起了信道占用并获取到对应的COT，UE作为响应设备可以共享所述COT用于数据传输且UE在配置的基站的COT内不能发起信道占用。
进一步的，所述设备1在检测到所述设备2发送的组控制信令且所述组控制信令指示剩余COT长度为0的情况下，所述设备1认为所述设备2发起信道占用并获取到对应的COT，则所述设备1作为所述设备2的响应设备，认为当前COT为所述发起设备(设备2)发起的信道占用对应的COT，但所述响应设备不可以共享所述发起设备发起的信道占用对应的COT用于传输所述响应设备的业务数据且所述响应设备在所述发起设备的COT内不会发起信道占用；
进一步的，所述设备1在检测到所述设备2发送的组控制信令且所述组控制信令指示剩余COT长度为预定义行的情况下，所述设备1认为所述设备2共享设备3发起的信道占用对应的COT，则所述设备2为所述设备3的响应设备，所述设备1不共享所述设备2的COT用于所述设备1的业务数据传输，同时所述设备1在满足发起信道占用的条件下，可以作为发起设备直接发起信道占用用于所述设备1的业务数据传输；所述特定行指有特定行索引的行，例如第1行或者最后1行，所述特定行也可以是具有特定信息指示组合的行，例如指示COT剩余长度信息为空的行，或者指示COT剩余长度为0的第1行或者最后1行；所述设备3与所述设备2可以直接通信，如设备1为UE1，设备2为基站，设备3为UE2；所述满足发起信道占用的条件为设备的传输的起始位置与设备的FFP的起始位置对齐且所述传输的结束位置在所述FFP的空闲周期之前结束。
例如，UE1、UE2和基站被分别配置了FFP，基站在空闲周期未发起信道占 用，或者在空闲周期通过CCA检测信道为忙，未成功发起信道占用，UE2在对应的空闲周期执行CCA检测，通过CCA检测信道为空闲，成功发起信道占用；基站共享UE2的COT用于DL数据传输，所述DL数据传输包含DCI格式2_0，DCI格式2_0通过COT长度指示列表的第1行指示COT剩余长度且所述第1行指示剩余COT长度为0；UE1收到所述DCI格式2_0所指示的剩余COT长度以及对应的指示行索引，认为基站共享了其他设备的COT；UE1的UL传输与配置给UE1的FFP的起始位置对齐且在所述FFP的空闲周期之前结束，则UE1可以在所述FFP之前紧邻的空闲周期执行CCA检测尝试发起信道占用，发起信道占用成功后可以使用UE1发起的信道占用对应的COT执行所述UL传输。
本实施例确定一个设备作为发起设备或响应设备的条件，也即在检测到单播数据传输的情况下或者检测到组控制信令或检测到组控制信令且所述组控制信令指示剩余COT长度大于0的情况下，所述设备作为响应设备共享发起设备的COT用于传输；所述设备在检测到组控制信令指示的剩余COT长度为0的情况下，分两种情况，1)与所述设备通信的设备为发起设备，则所述设备在所述发起设备的有效COT内不发起信道占用；2)与所述设备通信的设备共享其他发起设备的COT，则所述设备在满足发起信道占用的条件下发起信道占用。
实施例2
工作在FBE模式下的设备作为发起设备，该设备可以在空闲周期执行CCA检测，通过CCA检测信道为空闲就可以占用紧邻的下一个FFP的COT用于数据传输，所述发起设备的响应设备可以共享所述COT用于数据传输。例如，基站作为发起设备在空闲周期执行CCA检测，若通过CCA检测信道为空闲，则基站就可以占用紧邻的下一个FFP的COT用于数据传输，在所述COT中首先发送下行链路传输，所述COT的剩余部分可以共享给基站的其他响应设备，如UE。基站发起信道占用的情况下，响应设备UE可以共享基站的COT用于数据传输；UE的数据传输的起始位置与UE的FFP的起始位置对齐且所述数据传输在所述FFP的空闲周期之前结束，则UE可以作为发起设备直接发起信道占用用于所述数据传输。
基于实施例1的方案2，所述设备2在发送所述组控制信令的情况下，有以下方案。
方案1：作为发起设备，所述设备2在FFP的COT的起始位置传输所述组控制信令；作为响应设备，所述设备2在开始共享所述设备3的COT的起始位置发送所述组控制信令；
方案2：作为发起设备，所述设备2在FFP的COT的起始位置传输的首个传输簇中发送所述组控制信令；作为响应设备，所述设备2在开始共享所述设 备3的COT的起始位置传输的首个传输簇中发送所述组控制信令；所述传输簇为同一设备的传输集合，在所述传输集合中包含多个传输，所述多个传输的相邻传输之间的间隔不大于X微秒，所述X为固定值，例如16。
例如，基站作为发起设备在空闲周期执行CCA检测，若通过CCA检测信道为空闲，则基站占用紧邻所述空闲周期的FFP的COT用于发送下行链路(downlink，DL)数据，基站在所述COT的起始位置发送DCI格式2_0通知剩余COT长度，或者基站在所述COT的起始位置发送的首个传输簇中发送DCI格式2_0通知剩余COT长度。
UE1、UE2和基站被分别配置了FFP，基站在空闲周期未发起信道占用，或者在空闲周期通过CCA检测信道为忙，未成功发起信道占用，UE2在对应的空闲周期执行CCA检测，通过CCA检测信道为空闲，成功发起信道占用；基站共享UE2的COT用于DL数据传输，基站在开始共享UE2的COT的起始位置发送DCI格式2_0通知剩余COT长度，或者基站在开始共享UE2的COT起始位置发送的首个传输簇中发送DCI格式2_0通知剩余COT长度。
所述设备1检测所述设备2发送的组控制信令时，存在漏检所述组控制信令的情况，该情况下的解决方案如下。
方案1：所述设备1未检测到所述设备2在所述COT中发送的组控制信令，但所述设备1检测到所述设备2发送给所述设备1的单播业务数据的情况下，所述设备1为所述设备2的响应设备，所述响应设备可以共享所述发起设备(设备2)发起的信道占用对应的COT用于传输所述响应设备的业务数据，且所述响应设备在所述发起设备的COT内不会发起信道占用。
例如，基站作为发起设备在空闲周期执行CCA检测，若通过CCA检测信道为空闲，则基站占用紧邻所述空闲周期的FFP的COT用于DL数据传输，所述DL数据传输包含DCI格式2_0和PDSCH，UE未检测到DCI格式2_0，但成功检测到PDSCH，则所述UE认为基站作为发起设备发起了信道占用并获取到对应的COT，所述UE可以共享所述COT用于所述UE的UL数据传输。
方案2：所述设备1未检测到所述设备2在所述COT中发送的组控制信令，则所述设备1不执行COT的共享用于所述设备1的数据传输，同时在所述COT中也不会发起信道占用用于所述设备1的数据传输；在所述设备2的COT中，所述设备1在首次收到所述组控制信令的情况下，根据所述组控制信令指示的信息以及实施例1的方案2确定所述设备1共享所述设备2的COT还是所述设备1作为发起设备发起信道占用用于所述设备1的业务数据传输。
方案3：所述设备1未检测到所述设备2在所述COT中发送的所述组控制 信令，所述设备1在满足发起信道占用的条件下发起信道占用用于所述设备1的数据传输；在所述设备1作为发起设备成功发起信道占用后在所述设备2的所述COT中收到组控制信令的情况下，若所述组控制信令根据实施例1的方案2确定所述设备1不应该发起信道占用，则所述设备1在收到所述组控制信令后释放所述设备1发起的信道占用对应的COT的后续使用权；若所述组控制信令指示所述设备1可以发起信道占用，则所述设备1可以继续使用设备1发起的信道占用对应的COT用于所述设备1的数据传输；若所述组控制信令指示所述设备1可以共享所述设备2的COT，则所述设备1可以通过共享所述设备2的COT用于所述设备1的业务数据传输，否则所述设备1在所述设备2的COT中不能再次传输数据。
例如，基站作为发起设备在空闲周期执行CCA检测，若通过CCA检测信道为空闲，则基站占用紧邻所述空闲周期的FFP的COT用于DL数据传输，所述DL数据传输包含两次DCI格式2_0的传输；UE未检测到第一次的DCI格式2_0的传输，所述UE的UL数据传输与配置给所述UE的FFP的起始位置对齐，且所述UL数据传输在所述UE的FFP的空闲周期之前结束，则UE作为发起设备在紧邻所述UE的FFP的空闲周期执行CCA检测，若通过CCA检测信道为空闲，则UE成功发起信道占用并使用所述COT执行所述UL数据传输；所述UE在第二个DCI格式2_0到来时检测到DCI格式2_0，所述DCI格式2_0指示UE不应该发起信道占用，则UE在收到所述DCI格式2_0之后终止在所述UE的COT中的UL数据传输，若所述DCI格式2_0通知所述UE可以共享所述基站的COT，则所述UE可以共享所述基站的COT用于所述UL数据传输。
本实施例确定实施例1中的所述组控制信令的发送位置，以及所述组控制信令漏检的情况下，所述设备该如何确定所述设备的传输所使用的COT。
实施例3
工作在FBE模式下的设备作为发起设备，该设备可以在空闲周期执行CCA检测，通过CCA检测信道为空闲就可以占用紧邻的下一个FFP的COT用于数据传输，所述发起设备的响应设备可以共享所述COT用于数据传输。例如，基站作为发起设备在空闲周期执行CCA检测，若通过CCA检测信道为空闲，则基站就可以占用紧邻的下一个FFP的COT用于数据传输，在所述COT中首先执行下行链路传输，所述COT的剩余部分可以共享给基站的其他响应设备，如UE。在基站发起信道占用的情况下，响应设备UE可以共享基站的COT用于数据传输；UE的数据传输的起始位置与UE的FFP的起始位置对齐且所述数据传输在所述FFP的空闲周期之前结束，则UE可以作为发起设备直接发起信道占用用于所述数据传输。
本申请还提供了一种配置授权数据传输方法，应用于第一通信节点，该方法，包括：在第一通信节点未发起信道占用，且所述第一通信节点传输的数据为配置授权数据，且满足发起信道占用条件的情况下，在所述第一通信节点的FFP之前紧邻的空闲周期执行CCA检测；在通过CCA检测信道为空闲的情况下，所述第一通信节点成功发起信道占用并使用发起的信道占用对应的COT传输配置授权数据；在通过CCA检测信道为忙，且下一个配置授权传输机会在所述第二通信节点的有效COT内，且所述第一通信节点可共享所述第二通信节点的COT的情况下，共享所述第二通信节点的COT用于传输配置授权数据。
在一个实施例中，在执行配置授权传输的同时通知配置授权传输所使用的COT。
在一个实施例中，在第一通信节点执行配置授权传输，且所述配置授权传输满足发起信道占用的条件的情况下，通过配置授权上行链路控制信息(Configured Grant Uplink Control Information，CG-UCI)指示所述配置授权传输所使用的COT；在第一通信节点执行配置授权传输，且所述配置授权传输满足发起信道占用的条件的情况下，通过CG-UCI中的COT共享信息中的信道接入优先级类别(Channel Access Priority Class，CAPC)指示所述配置授权传输所使用的COT；在第一通信节点执行配置授权传输，且所述配置授权传输满足发起信道占用的条件的情况下，通过在CG-UCI中增加1比特信息用于指示所述配置授权传输所使用的COT；在第一通信节点执行配置授权传输，且所述配置授权传输满足发起信道占用的条件的情况下，通过CG-UCI中的偏移值、持续长度和CAPC三个域的特殊组合通知所述配置授权传输所使用的COT；在第一通信节点执行配置授权传输，且所述配置授权传输满足发起信道占用的条件的情况下，通过CG-UCI中的特定行索引指示所述配置授权传输所使用的COT。
以下对本实施例进行示例性描述。
对于一个工作在FBE模式下的设备1，所述设备1的配置授权传输的起始位置与所述设备1的FFP的起始位置对齐且所述配置授权传输的结束位置在所述FFP的空闲周期之前结束的情况下，则所述设备1在所述FFP之前紧邻的空闲周期执行CCA检测并发起信道占用。
方案1：若所述设备1通过CCA检测信道为空闲，则所述设备1成功发起信道占用并使用所述发起信道占用对应的COT用于配置授权传输。
方案2：若所述设备1通过CCA检测信道为忙，如果所述设备1的下一个配置授权传输机会在与所述设备直接通信的设备2的有效COT内且所述设备1可以共享所述设备2的COT，则所述设备1作为响应设备共享所述设备2的COT用于配置授权传输。
在配置授权传输满足发起信道占用的条件的情况下就执行所述设备发起信道占用会导致同时存在多个发起设备和有效的COT重叠，为了保持通信设备之间对配置授权传输所使用的COT理解一致，在执行配置授权传输的同时需要通知配置授权传输所使用的COT。进一步的，所述配置授权传输为配置授权PUSCH(configured grant PUSCH，CG-PUSCH)传输，所述CG-PUSCH传输所使用的COT通过CG-UCI通知。进一步的，所述CG-PUSCH传输所使用的COT通过CG-UCI中的COT共享信息中的CAPC通知，或在CG-UCI中增加1比特信息用于指示所述CG-PUSCH传输所使用的COT，或通过CG-UCI中的偏移值、持续长度和CAPC三个域的特殊组合通知CG-PUSCH所使用的COT，或通过CG-UCI中的特定行索引指示CG-PUSCH传输所使用的COT。
本实施例针对具体的场景的配置授权传输给出方案，配置授权传输与所述设备的FFP的起始位置对齐且在所述FFP的空闲周期之前结束的情况下，所述设备直接作为发起设备发起信道占用并将所述信道占用对应的一个COT用于所述配置授权传输；在所述设备作为发起设备发起信道占用失败的情况下，后续的传输机会仍然在与所述设备通信的发起设备的COT内，则所述设备转为响应设备共享所述发起设备的COT用于传输；以及通信双方都是发起设备的情况下，如何保持通信双方对传输所使用的COT理解一致，也即明确指示所述配置授权传输所使用的COT。
实施例4
工作在FBE模式下的设备作为发起设备，该设备可以在空闲周期执行CCA检测，通过CCA检测信道为空闲就可以占用紧邻的下一个FFP的COT用于数据传输，所述发起设备的响应设备可以共享所述COT用于数据传输。例如，基站作为发起设备在空闲周期执行CCA检测，若通过CCA检测信道为空闲，则基站就可以占用紧邻的下一个FFP的COT用于数据传输，在所述COT中首先执行下行链路传输，所述COT的剩余部分可以共享给基站的其他响应设备，如UE。在基站发起信道占用的情况下，响应设备UE可以共享基站的COT用于数据传输；UE的数据传输的起始位置与UE的FFP的起始位置对齐且所述数据传输在所述FFP的空闲周期之前结束，则UE可以作为发起设备直接发起信道占用用于所述数据传输。
本申请还提供了一种动态授权数据传输方法，应用于第一通信节点该方法包括：在所述第一通信节点传输的数据为动态授权数据的情况下，若动态授权传输在所述第一通信节点FFP的起始位置之后，且在所述FFP的空闲周期之前结束，且在执行所述动态授权传输前所述第一通信节点已经成功发起信道占用，则所述动态授权传输根据所发起的信道占用对应的COT执行；否则，所述第一 通信节点为响应设备，所述动态授权传输在发起设备的有效FFP的COT内，且在所述FFP的空闲周期之前结束，所述动态授权传输通过共享所述发起设备的COT用于执行。
以下对本申请进行示例性的描述。
对于一个工作在FBE模式下的设备，若所述设备在所述动态授权传输之前已经发起了信道占用并获取到对应的一个COT，则所述动态授权传输根据所述设备发起的信道占用对应的COT执行；否则，所述设备作为响应设备，若所述动态授权传输在发起设备的有效的FFP的COT内且在所述FFP的空闲周期之前结束，则所述动态授权传输通过共享所述发起设备的COT用于执行。
例如，UE的动态授权传输在UE的FFP之后开始，且在UE的所述FFP的空闲周期之前结束，若UE在执行调度传输之前已经发起信道占用且获取到所述FFP的COT的使用权，则UE根据所述UE的FFP执行所述动态授权传输；否则，若所述UE在执行调度传输之前未发起信道占用且所述动态授权传输在基站的有效COT内，则所述动态授权传输通过共享基站的COT用于执行。
对于一个工作在FBE模式下的设备，所述设备的动态授权传输与所述设备的FFP的起始位置对齐且在所述FFP的空闲周期之前结束，
方案1：调度动态授权传输的控制信令指示所述设备的CCA类型为无LBT，所述设备作为响应设备，若所述响应设备确定所述动态授权传输在有效的发起设备的COT中，则所述响应设备共享所述发起设备的COT用于所述动态授权传输；所述设备在共享所述发起设备的COT过程中是否需要执行CCA以及执行的CCA类型根据所述动态授权传输与所述COT中之前的传输之间的间隔确定；所述无LBT为控制信令指示第一通信节点可以不执行CCA即可执行所述动态授权传输。
方案2：调度动态授权传输的控制信令指示所述设备的CCA类型为LBT，则所述设备作为发起设备发起信道占用用于执行所述动态授权传输；
方案3：在调度动态授权传输的控制信令中增加1比特字段指示所述设备共享发起设备的COT或所述设备发起信道占用用于所述动态授权传输。
本实施例针对具体的场景动态调度授权传输方案，所述设备的动态授权传输在所述设备的FFP的起始位置之后调度以及与所述设备的FFP的起始位置对齐的情况下，如何选择传输所使用的COT；所述设备的动态授权传输与所述设备的FFP的起始位置对齐的情况下，根据调度控制信令的指示确定所述设备的传输通过共享发起设备的COT执行还是通过自己发起的信道占用对应的COT执行。
在一个示例性实施方式中，本申请还提供了一种信道占用时间确定装置。图2为本申请实施例提供的一种信道占用时间确定装置的结构示意图。该装置可以配置于第一通信节点上，该装置包括：检测模块21，设置为在所述第一通信节点未发起信道占用的情况下，检测第二通信节点发送的信息；确定模块22，设置为根据检测结果确定用于数据传输的信道占用时间COT。
本实施例提供的信道占用时间确定装置设置为实现本申请实施例的信道占用时间确定方法，本实施例提供的信道占用时间确定装置实现原理和技术效果与本申请实施例的信道占用时间确定方法类似，此处不再赘述。
在上述实施例的基础上，提出了上述实施例的变型实施例，在此需要说明的是，为了使描述简要，在变型实施例中仅描述与上述实施例的不同之处。
在一个实施例中，确定模块22，设置为：在所述第二通信节点发送的信息包括单播业务数据的情况下，共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在一个实施例中，所述单播业务数据包括如下之一：物理上行链路共享信道数据；物理下行链路共享信道数据；物理上行链路控制信道数据；物理下行链路控制信道数据。
在一个实施例中，确定模块22，是设置为：在所述第二通信节点发送的信息包括组控制信令的情况下，共享所述第二通信节点发起信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在一个实施例中，确定模块22，设置为：在所述第二通信节点发送的信息包括组控制信令，且所述组控制信令指示剩余COT的长度大于0的情况下，共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在一个实施例中，确定模块22，设置为：在所述第二通信节点发送的信息包括组控制信令，且所述组控制信令指示剩余COT为0的情况下，不共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在一个实施例中，确定模块22，设置为：在所述第二通信节点发送的信息包括组控制信令，且所述组控制信令指示剩余COT长度为预定义行，且所述第 一通信节点满足发起信道占用的条件的情况下，发起信道占用对应的COT用于数据传输，所述预定义行包括有预定义行索引的行或者有预定义信息指示组合的行，所述第二通信节点作为响应设备。
在一个实施例中，所述组控制信令包括下行链路控制信息格式2_0。
在一个实施例中，信道占用时间确定装置，包括如下之一：所述第二通信节点在所述第二通信节点的固定帧周期FFP的COT的起始位置传输所述组控制信令；所述第二通信节点在所述第二通信节点的FFP的COT的起始位置传输的首个传输簇中发送所述组控制信令。
在一个实施例中，信道占用时间确定装置，包括如下之一：所述第二通信节点在开始共享COT的起始位置传输所述组控制信令；所述第二通信节点在开始共享COT的起始位置传输的首个传输簇中发送所述组控制信令。
在一个实施例中，确定模块22，设置为：在未检测到所述第二通信节点发送的组控制信令，且检测到所述第二通信节点发送的单播业务数据的情况下，共享所述第二通信节点发起信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
在一个实施例中，确定模块22，设置为：在未检测到所述第二通信节点发送的组控制信令的情况下，不共享所述第二通信节点发起的信道占用对应的COT用于数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，在所述第一通信节点首次收到组控制信令的情况下，根据所述组控制信令指示的信息确定用于数据传输的COT。
在一个实施例中，确定模块22，设置为：在未检测到所述第二通信节点发送的组控制信令，且所述第一通信节点满足发起信道占用的条件的情况下，发起信道占用用于数据传输。
在一个实施例中，信道占用时间确定装置，还包括：后续COT确定模块，设置为：在成功发起信道占用后收到所述第二通信节点传输的组控制信令的情况下，根据所述组控制信令确定后续数据传输的COT。
在一个实施例中，后续COT确定模块，设置为：在所述组控制信令指示所述第一通信节点不应发起信道占用的情况下，释放所述第一通信节点的COT的后续使用权。
在一个实施例中，信道占用时间确定装置，还包括：在所述组控制信令指示所述第一通信节点可共享所述第二通信节点的COT的情况下，所述第一通信节点可共享所述第二通信节点的COT用于数据传输，
在一个实施例中，信道占用时间确定装置，还包括：在所述组控制信令指示所述第一通信节点不可共享所述第二通信节点的COT的情况下，所述第一通信节点在所述第二通信节点的COT中不再传输数据。
在一个实施例中，后续COT确定模块，设置为：在所述组控制信令指示所述第一通信节点可发起信道占用的情况下，所述第一通信节点可继续使用发起的所述信道占用对应的COT用于数据传输。
在一个实施例中，信道占用时间确定装置，还包括：共享模块，设置为：在传输的数据为动态授权传输，且所述第二通信节点发送的信息包括调度所述动态授权传输的控制信令，且所述控制信令指示CCA类型为无先听后说，且所述动态授权传输在有效的第二通信节点的COT中的情况下，共享所述第二通信节点的COT用于所述动态授权传输；所述无先听后说为控制信令指示第一通信节点可以不执行CCA即可执行所述动态授权传输。
在一个实施例中，信道占用时间确定模块，还包括：CCA确定模块，设置为：所述第一通信节点在共享所述第二通信节点的COT的过程中，根据所述动态授权传输与所述第二通信节点的COT中之前的传输之间的间隔确定是否执行CCA以及执行的CCA类型。
在一个实施例中，信道占用时间确定模块，还包括：发起模块，设置为：在传输的数据为动态授权传输，且所述动态授权传输满足发起信道占用的条件，且所述第二通信节点发送的信息包括调度动态授权传输的控制信令，且所述控制信令指示CCA类型为先听后说的情况下，所述第一通信节点作为发起设备发起信道占用用于执行所述动态授权传输。
在一个实施例中，发起信道占用的条件包括：传输的起始位置与第一通信节点的FFP的起始位置对齐且传输的结束位置在所述FFP的空闲周期之前结束。
在一个实施例中，信道占用时间确定装置，还包括：COT确定模块，设置为：在传输的数据为动态授权传输，且所述第二通信节点发送的信息包括调度动态授权传输的控制信令，根据所述控制信令中增加的1比特字段确定动态授权传输所使用的COT。
在一个示例性实施方式中，本申请实施例还提供了一种第一通信节点。图3为本申请实施例提供的一种第一通信节点的结构示意图。如图3所示，本申请提供的第一通信节点，包括一个或多个处理器31和存储装置32；该第一通信节点中的处理器31可以是一个或多个，图3中以一个处理器31为例；存储装置32设置为存储一个或多个程序；所述一个或多个程序被所述一个或多个处理器31执行，使得所述一个或多个处理器31实现如本申请实施例中所述的信道占用 时间确定方法。
第一通信节点还包括：通信装置33、输入装置34和输出装置35。
第一通信节点中的处理器31、存储装置32、通信装置33、输入装置34和输出装置35可以通过总线或其他方式连接，图3中以通过总线连接为例。
输入装置34可设置为接收输入的数字或字符信息，以及产生与第一通信节点的用户设置以及功能控制有关的按键信号输入。输出装置35可包括显示屏等显示设备。
通信装置33可以包括接收器和发送器。通信装置33设置为根据处理器31的控制进行信息收发通信。
存储装置32作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序以及模块，如本申请实施例所述信道占用时间确定方法对应的程序指令/模块(例如，信道占用时间确定装置中的检测模块21和确定模块22)。存储装置32可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；存储数据区可存储根据设备的使用所创建的数据等。此外，存储装置32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、或其他非易失性固态存储器件。在一些实例中，存储装置32可进一步包括相对于处理器31远程设置的存储器，这些远程存储器可以通过网络连接至第一通信节点。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
本申请实施例还提供一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请任一所述方法，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例提供的信道占用时间确定方法。该方法包括：在所述第一通信节点未发起信道占用的情况下，检测第二通信节点发送的信息；根据检测结果确定用于数据传输的信道占用时间COT。
本申请实施例的计算机存储介质，可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是——但不限于——电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的例子(非穷举的列表)包括：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(Random Access Memory，RAM)、只读存储器(Read-Only Memory，ROM)、可擦式可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)、闪存、光纤、便携式光盘只读存 储器(Compact Disc Read-Only Memory，CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于：电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括但不限于：无线、电线、光缆、无线电频率(Radio Frequency，RF)等，或者上述的任意合适的组合。
可以以一种或多种程序设计语言或其组合来编写用于执行本申请操作的计算机程序代码，所述程序设计语言包括面向对象的程序设计语言—诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言—诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络——包括局域网(Local Area Network，LAN)或广域网(Wide Area Network，WAN)——连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
以上所述，仅为本申请的示例性实施例而已，并非用于限定本申请的保护范围。
本领域内的技术人员应明白，第一通信节点涵盖任何适合类型的无线用户设备，例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说，本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如，一些方面可以被实现在硬件中，而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中，尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现，例如在处理器实体中，或者通过硬件，或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Instruction Set Architecture，ISA)指 令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现，例如但不限于ROM、RAM、光存储器装置和系统(数码多功能光碟(Digital Video Disc，DVD)或光盘(Compact Disk，CD))等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、可编程逻辑器件(Field-Programmable Gate Array，FPGA)以及基于多核处理器架构的处理器。
通过示范性和非限制性的示例，上文已提供了对本申请的示范实施例的详细描述。但结合附图和权利要求来考虑，对以上实施例的多种修改和调整对本领域技术人员来说是显而易见的，但不偏离本申请的范围。因此，本申请的恰当范围将根据权利要求确定。

Claims (26)

  1. 一种信道占用时间确定方法，应用于第一通信节点，包括：
    在所述第一通信节点未发起信道占用的情况下，检测第二通信节点发送的信息；
    根据检测结果确定用于数据传输的信道占用时间COT。
  2. 根据权利要求1所述的方法，其中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：
    在所述第二通信节点发送的信息包括单播业务数据的情况下，共享所述第二通信节点发起信道占用对应的COT用于所述数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
  3. 根据权利要求2所述的方法，其中，所述单播业务数据包括如下之一：
    物理上行链路共享信道数据；物理下行链路共享信道数据；物理上行链路控制信道数据；物理下行链路控制信道数据。
  4. 根据权利要求1所述的方法，其中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：
    在所述第二通信节点发送的信息包括组控制信令的情况下，共享所述第二通信节点发起的信道占用对应的COT用于所述数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
  5. 根据权利要求1所述的方法，其中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：
    在所述第二通信节点发送的信息包括组控制信令，且所述组控制信令指示剩余COT的长度大于0的情况下，共享所述第二通信节点发起的信道占用对应的COT用于所述数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
  6. 根据权利要求1所述的方法，其中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：
    在所述第二通信节点发送的信息包括组控制信令，且所述组控制信令指示剩余COT为0的情况下，不共享所述第二通信节点发起的信道占用对应的COT用于所述数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为发起设备。
  7. 根据权利要求1所述的方法，其中，所述根据检测结果确定用于数据传输 的信道占用时间COT，包括：
    在所述第二通信节点发送的信息包括组控制信令，且所述组控制信令指示剩余COT长度为预定义行，且所述第一通信节点满足发起信道占用的条件的情况下，发起信道占用用于所述数据传输，所述预定义行包括有预定义行索引的行或者有预定义信息指示组合的行，所述第二通信节点作为响应设备。
  8. 根据权利要求4-7中任一所述的方法，其中，所述组控制信令包括下行链路控制信息格式2_0。
  9. 根据权利要求4-6中任一所述的方法，还包括如下之一：
    所述第二通信节点在所述第二通信节点的固定帧周期FFP的COT的起始位置传输所述组控制信令；
    所述第二通信节点在所述第二通信节点的FFP的COT的起始位置传输的首个传输簇中发送所述组控制信令。
  10. 根据权利要求7所述的方法，还包括如下之一：
    所述第二通信节点在开始共享所述COT的起始位置传输所述组控制信令；
    所述第二通信节点在开始共享所述COT的起始位置传输的首个传输簇中发送所述组控制信令。
  11. 根据权利要求4-7中任一所述的方法，其中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：
    在未检测到所述第二通信节点发送的组控制信令，且检测到所述第二通信节点发送的单播业务数据的情况下，共享所述第二通信节点发起的信道占用对应的COT用于所述数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，所述第二通信节点为所述发起设备。
  12. 根据权利要求4-7中任一所述的方法，其中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：
    在未检测到所述第二通信节点发送的组控制信令的情况下，不共享所述第二通信节点发起的信道占用对应的COT用于所述数据传输，所述第一通信节点在所述第二通信节点发起的信道占用对应的COT内不发起信道占用，在所述第一通信节点首次收到组控制信令的情况下，根据所述组控制信令指示的信息确定用于所述数据传输的COT。
  13. 根据权利要求4-7中任一所述的方法，其中，所述根据检测结果确定用于数据传输的信道占用时间COT，包括：
    在未检测到所述第二通信节点发送的组控制信令，且所述第一通信节点满 足发起信道占用的条件的情况下，发起信道占用用于所述数据传输。
  14. 根据权利要求13所述的方法，还包括：
    在成功发起信道占用后收到所述第二通信节点传输的组控制信令的情况下，根据所述组控制信令确定后续数据传输的COT。
  15. 根据权利要求14所述的方法，其中，所述根据所述组控制信令确定后续数据传输的COT，包括：
    在所述组控制信令指示所述第一通信节点不应发起信道占用的情况下，释放所述第一通信节点的COT的后续使用权。
  16. 根据权利要求15所述的方法，还包括：
    在所述组控制信令指示所述第一通信节点可共享所述第二通信节点的COT的情况下，所述第一通信节点可共享所述第二通信节点的COT用于所述数据传输，
  17. 根据权利要求15所述的方法，还包括：
    在所述组控制信令指示所述第一通信节点不可共享所述第二通信节点的COT的情况下，所述第一通信节点在所述第二通信节点的COT中不再传输数据。
  18. 根据权利要求14所述的方法，其中，所述根据所述组控制信令确定后续数据传输的COT，包括：
    在所述组控制信令指示所述第一通信节点可发起信道占用的情况下，所述第一通信节点可继续使用发起的信道占用对应的COT用于所述数据传输。
  19. 根据权利要求1所述的方法，其中，根据检测结果确定用于数据传输的信道占用时间COT，包括：在所述数据传输为动态授权传输，且所述第二通信节点发送的信息包括调度所述动态授权传输的控制信令，且所述控制信令指示空闲信道评估CCA类型为无先听后说，且所述动态授权传输在有效的所述第二通信节点的COT中的情况下，共享所述第二通信节点的COT用于所述动态授权传输；
    所述无先听后说为所述控制信令指示所述第一通信节点可以不执行CCA即可执行所述动态授权传输。
  20. 根据权利要求19所述的方法，还包括：
    所述第一通信节点在共享所述第二通信节点的COT的过程中，根据所述动态授权传输与所述第二通信节点的COT中之前的传输之间的间隔确定是否执行CCA以及执行的CCA类型。
  21. 根据权利要求1所述的方法，其中，根据检测结果确定用于数据传输的信道占用时间COT，包括：
    在所述数据传输为动态授权传输，且所述动态授权传输满足发起所述信道占用的条件，且所述第二通信节点发送的信息包括调度所述动态授权传输的控制信令，且所述控制信令指示CCA类型为先听后说的情况下，所述第一通信节点作为发起设备发起信道占用用于执行所述动态授权传输。
  22. 根据权利要求7或13或21所述的方法，其中，发起信道占用的条件包括：
    所述数据传输的起始位置与所述第一通信节点的FFP的起始位置对齐且所述数据传输的结束位置在所述FFP的空闲周期之前结束。
  23. 根据权利要求1所述的方法，其中，根据检测结果确定用于数据传输的信道占用时间COT，包括：
    在所述数据传输为动态授权传输，且所述第二通信节点发送的信息包括调度所述动态授权传输的控制信令，根据所述控制信令中增加的1比特字段确定所述动态授权传输所使用的COT。
  24. 一种信道占用时间确定装置，配置于第一通信节点，包括：
    检测模块，设置为在所述第一通信节点未发起信道占用的情况下，检测第二通信节点发送的信息；
    确定模块，设置为根据检测结果确定用于数据传输的信道占用时间COT。
  25. 一种第一通信节点，包括：
    至少一个处理器；
    存储装置，设置为存储至少一个程序；
    当所述至少一个程序被所述至少一个处理器执行，使得所述至少一个处理器实现如权利要求1-23任一所述的方法。
  26. 一种存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1-23任一项所述的方法。
PCT/CN2021/138717 2021-01-15 2021-12-16 信道占用时间确定方法、装置、第一通信节点及存储介质 WO2022151907A1 (zh)

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