WO2023001078A1 - 信道共享方法、设备和存储介质 - Google Patents

信道共享方法、设备和存储介质 Download PDF

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Publication number
WO2023001078A1
WO2023001078A1 PCT/CN2022/106040 CN2022106040W WO2023001078A1 WO 2023001078 A1 WO2023001078 A1 WO 2023001078A1 CN 2022106040 W CN2022106040 W CN 2022106040W WO 2023001078 A1 WO2023001078 A1 WO 2023001078A1
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channel
competition
area
signal
contention
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PCT/CN2022/106040
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English (en)
French (fr)
Inventor
卢有雄
邢卫民
贺海港
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中兴通讯股份有限公司
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Publication of WO2023001078A1 publication Critical patent/WO2023001078A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present application relates to the communication field, for example, to a channel sharing method, device and storage medium.
  • mode 1 base station scheduling method to allocate resources
  • mode 2 The UE selects resources autonomously.
  • BWP carrier/bandwidth part
  • channel channel
  • Embodiments of the present application provide a channel sharing method, device, and storage medium, which realize resource multiplexing among multiple communication nodes on an unlicensed carrier, and reduce resource conflicts among communication nodes.
  • An embodiment of the present application provides a channel sharing method applied to a first type of communication node, including:
  • At least one of the following is sent on the time-frequency resource of the data unit or data unit set corresponding to the channel competition unit: control message, data; wherein, the data unit The data units in the set are in the data transmission and reception time-frequency resource area, or the data units are in the data transmission and reception time-frequency resource area.
  • An embodiment of the present application provides a channel sharing method applied to a second type of communication node, including:
  • At least one of the following is sent on the time-frequency resource of the data unit or data unit set corresponding to the channel competition unit: control message, data; wherein, the data unit The data units in the set are in the data transmission and reception time-frequency resource area, or the data units are in the data transmission and reception time-frequency resource area.
  • An embodiment of the present application provides a channel sharing device, including: a communication module, a memory, and one or more processors;
  • the communication module is configured to perform communication interaction between the first type of communication node and the second type of communication node;
  • the memory configured to store one or more programs
  • the one or more processors are made to implement the method described in any of the foregoing embodiments.
  • An embodiment of the present application provides a storage medium, the storage medium stores a computer program, and when the computer program is executed by a processor, the method described in any one of the foregoing embodiments is implemented.
  • FIG. 1 is a flowchart of a channel sharing method provided in an embodiment of the present application
  • FIG. 2 is a schematic configuration diagram of multiple areas in a channel occupancy duration provided by an embodiment of the present application
  • FIG. 3 is a flow chart of another channel sharing method provided by an embodiment of the present application.
  • FIG. 4 is a schematic configuration diagram of multiple areas in a channel occupancy duration provided by an embodiment of the present application.
  • FIG. 5 is a schematic configuration diagram of an SL time slot shared by a channel contention area and a channel occupancy notification signal area provided by an embodiment of the present application;
  • Fig. 6 is a schematic diagram of configuration of multiple areas between two channel occupancy durations provided by an embodiment of the present application.
  • FIG. 7 is a schematic configuration diagram of an SL time slot shared by another channel contention area and a channel occupancy notification signal area provided by an embodiment of the present application;
  • FIG. 8 is a schematic diagram of configuration of multiple regions in another channel occupancy duration provided by an embodiment of the present application.
  • FIG. 9 is a structural block diagram of a channel sharing device provided in an embodiment of the present application.
  • FIG. 10 is a structural block diagram of another channel sharing device provided by an embodiment of the present application.
  • Fig. 11 is a schematic structural diagram of a channel sharing device provided by an embodiment of the present application.
  • mode 1 base station scheduling to allocate resources
  • mode 2 UE independently selects resources.
  • For mode 1 through scheduling by a central node, such as a base station, resources between UEs can be free from conflicts.
  • For mode 2 since there is no scheduling by the central node, UEs need to share resources according to certain rules while avoiding resource conflicts as much as possible.
  • UE can receive and send Side Link Control Information (SideLink Control Information, SCI) sent by UE ) information, learn its resource usage information in the following period, and avoid it when performing resource selection, so as to realize resource multiplexing among multiple UEs.
  • SCI Side Link Control Information
  • the embodiment of the present application proposes a channel sharing method, which implements resource reuse among multiple communication nodes on an unlicensed carrier, and reduces resource conflicts among communication nodes.
  • FIG. 1 is a flowchart of a channel sharing method provided in an embodiment of the present application.
  • This embodiment can be executed by a channel sharing device.
  • the channel sharing device may be a communication node of the first type.
  • the first type of communication node refers to a UE whose LBT is successful.
  • this embodiment includes S110-S120.
  • the first type of communication node performs channel monitoring before sending, and if the result of the monitoring is that the current channel is in an idle state, within a COT, the channel in the channel contention area according to a pre-selected channel contention signal pattern
  • the contention unit sends a channel contention signal.
  • the channel contention signal is used to compete for channel resources in the channel contention area.
  • the channel contention signal includes: sending symbols and monitoring symbols. Wherein, the sending symbol is used for sending a channel competition signal; the monitoring symbol is used for monitoring whether the second type communication node uses the channel resource.
  • the communication node of the first type sends a channel contention signal corresponding to the selected channel resource on the sending symbol, and monitors whether there is a resource conflict on the listening symbol.
  • a COT may include two areas, a channel contention area and a time-frequency resource area for data transmission and reception, and one or more time slots (slots) where the channel contention area is located are called leading slots.
  • the data units in the data unit set are in the data sending and receiving time-frequency resource area, or the data units are in the data sending and receiving time-frequency resource area.
  • the first type of communication node finds no resource conflict on the selected channel resource, it is considered that the first type of communication node has successfully competed for the channel resource in the channel contention area.
  • the first type of communication node successfully competes for channel resources in the channel competition area, it sends control messages and/or data on the time-frequency resources corresponding to the data unit or data unit set corresponding to the channel competition unit.
  • the data unit set refers to a set including at least two data units.
  • each channel competition unit corresponds to one data unit.
  • the channel competition signal is sent on multiple channel competition units, and in the case of successfully competing for channel resources on the multiple channel competition units, each data unit in the data unit set corresponding to the multiple channel competition units Send control messages and/or data on time-frequency resources; send channel competition signals on a channel competition unit, and in the case of successfully competing for channel resources on a channel competition unit, the time-frequency of the data unit corresponding to the channel competition unit Send control messages and/or data on the resource.
  • the first type of communication node sends a channel contention signal corresponding to the selected channel resource on the sending symbol, and monitors whether there is a second type of communication node occupying the channel resource on the monitoring symbol, that is, whether there is a resource conflict. If there is a resource conflict, the competition will be withdrawn, thereby avoiding resource selection conflicts among multiple communication nodes.
  • a COT includes the following areas: a channel occupancy notification signal area; a channel contention area; and a time-frequency resource area for data transmission and reception.
  • FIG. 2 is a schematic diagram of configuration of multiple regions in a channel occupation duration provided by an embodiment of the present application. As shown in FIG. 2 , a COT includes three areas: a channel occupancy notification signal area, a channel contention area, and a time-frequency resource area for data transmission and reception. Wherein, one or more slots where the channel occupancy notification signal area and the channel contention area are located are called leading slots.
  • the channel occupation notification signal is sent to the second type communication node on the channel occupation notification signal resource.
  • a COT includes three areas: the channel occupancy notification signal area, the channel contention area, and the data transmission and reception time-frequency resource area, at the beginning of the COT, on the channel occupancy notification signal resource
  • a channel occupancy announcement signal is sent to a communication node of the second type.
  • the communication node of the second type refers to other UEs monitoring the channel.
  • the relationship between the second type of communication node and the first type of communication node includes one of the following: the received energy of the competition signal of the second type of communication node is greater than the energy threshold, and the energy of the second type of communication node The current priority is greater than or equal to the priority indicated by the channel occupancy notification signal; wherein, the second type of communication node is a target receiving node of the first type of communication node.
  • the first type of communication node monitors the channel before sending, and if the monitoring is successful, it sends the channel occupation notification signal to the second type of communication node on the channel occupation notification resource, so that the second type of communication node can
  • the channel resources in the channel competition area within the COT compete to realize resource reuse among multiple communication nodes and reduce resource conflicts among multiple communication nodes.
  • the data unit or the data unit set includes one of the following: the data unit is the first data unit in the data transmission and reception time-frequency resource area, or the data unit set is the first data unit in the data transmission and reception time-frequency resource area The first data unit set; the data unit is the data unit corresponding to the channel competition unit obtained through competition in the channel competition area, or the data unit set is the data unit set corresponding to the channel competition unit obtained through competition in the channel contention area.
  • the first data unit refers to the first data unit in the time-frequency resource area for data transmission and reception; the first data unit set refers to the first N data units in the time-frequency resource area for data transmission and reception A data unit, wherein, N is a positive integer greater than 1.
  • one or more data units in the first data unit in the data transmission and reception time-frequency resource or the first data unit set composed of the first N data units can be directly used as the first type of communication node data unit.
  • the first type of communication node may send a channel competition signal on a channel competition unit in the channel competition area according to a pre-selected channel competition signal pattern, and use the data unit corresponding to the channel competition unit that successfully competes for channel resources as A data unit that sends control messages and/or data; correspondingly, when the amount of control messages and/or data is relatively large, that is, when multiple channel competition units are used to send channel competition signals, all channel competitions that will successfully compete for channel resources
  • Each data unit in the data unit set corresponding to the unit serves as a data unit for sending control messages and/or data.
  • the channel competition area includes: at least two channel competition units; each channel competition unit occupies at least one symbol or symbol segment in the time domain, and consists of a logical resource block (Resource Block, RB) in the frequency domain Group composition; wherein, one channel competition unit in each channel competition area corresponds to one data unit in the data transmission and reception time-frequency resource area; wherein, the logical RB group includes at least one physically continuous RB, or at least one physical On discontinuous RB;
  • Resource Block Resource Block
  • the data sending and receiving time-frequency resource area includes: at least two data units used for transmission by the first-type communication node or the second-type communication node.
  • the symbol segment refers to dividing a symbol into multiple equal-length segments.
  • each channel contention unit consists of a certain number of symbols or symbol segments in the time domain and a logical RB group in the frequency domain.
  • Each group of channel contention signal patterns corresponds to a certain number of symbols or symbol segments.
  • the channel competition signal pattern includes sending symbols and monitoring symbols, wherein the monitoring symbols can include 0 or one or more; when multiple monitoring symbols are included, the multiple monitoring symbols in each channel competition signal pattern There is discontinuity between them.
  • a data unit corresponds to a channel competition unit, which can also be understood as a subchannel resource in a slot in the data transmission and reception time-frequency resource area and a channel competition unit in the channel competition area There is a one-to-one correspondence between them, that is, one channel unit corresponds to one subchannel.
  • a subchannel is the frequency domain granularity of the data unit.
  • the channel occupancy notification signal area occupies one or more symbols in the time domain, or the channel occupancy notification signal area occupies one or more symbol segments in the time domain; the channel occupancy notification signal area occupies one or more symbol segments in the frequency domain It is mapped to resource elements (Resource Elements, REs) in the channel in an interlace manner, or the channel occupancy notification signal area is mapped to a logical RB group in the frequency domain.
  • the time-frequency resource area for data transmission and reception includes a plurality of time slots for communication node transmission, for example, it can be used for Physical Sidelink Control Channel (Physical Sidelink Control Channel, PSCCH), Physical Sidelink Transmission of Physical Sidelink Shared Channel (PSSCH) and Physical Sidelink Feedback Channel (PSFCH).
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSFCH Physical Sidelink Feedback Channel
  • a channel competition unit corresponds to a logical RB group, and a logical RB group can be composed of a certain number of continuous RBs or discontinuous RBs; a channel competition unit corresponds to a RE group, and a RE group can be Consists of a certain number of continuous or discontinuous REs.
  • the channel occupancy notification signal includes at least one of the following: current channel monitoring LBT success indication information; COT information; indication information of the resource pool to which COT resources belong; channel access priority;
  • the current channel monitoring LBT monitoring success indication information can be a fixed sequence;
  • the COT information includes the COT duration or the number of slots that can be shared;
  • the indication information of the resource pool to which the COT resource belongs refers to the resource where the COT resource is located
  • the indication information of the pool can be understood as, when the first type of communication node successfully performs LBT, the first type of communication node can send a channel occupancy notification signal to other UEs belonging to the same resource pool;
  • the channel access priority refers to the permission to share The priority of the UE;
  • the number of symbols in the channel contention area refers to the number of symbols contained in the channel contention area.
  • the channel occupancy notification signal resource configuration method includes one of the following: resource pool configuration; each band BWP or carrier configuration; configuration at the beginning of the COT.
  • channel occupancy notification signal resources may be configured through resource pools, each BWP or carrier; channel occupancy notification signal resources may also be directly configured at the initial position in the COT.
  • the form of the channel occupancy announcement signal includes: a sequence of at least two symbols; wherein, the symbol includes one of the following: a symbol segment; a symbol determined by a specific subcarrier spacing (SubCarrier Spacing, SCS).
  • the channel occupancy announcement signal is preferentially a sequence, and the sequence may include at least two symbols (wherein 1 symbol is used as an automatic gain control (Automatic Gain Control, AGC) symbol), where the symbols may be determined based on the Comb structure
  • AGC automatic gain control
  • the symbol segment can also be a symbol identified for a particular SCS.
  • the SCS of the channel occupancy notification signal may be different from the SCS of the data.
  • the COT information is expressed in one of the following ways: RE offset value; different sequence; different sequence offset value of a sequence.
  • the COT information may be represented by an RE offset value, a different sequence or a different sequence offset value of a sequence. It can be understood that when the RE offset value is different, the corresponding COT information is different, that is, the duration of COT is different; when the sequence is different, the corresponding COT information is different, that is, the duration of COT is different ; When the sequence offset values adopted by the same sequence are different, the corresponding COT information is different, that is, the duration of the COT is different.
  • the channel access priority is expressed in one of the following ways: RE offset value; different sequence; different sequence offset value of a sequence.
  • an RE offset value, different sequences or different sequence offset values of a sequence may be used to represent the channel access priority. It can be understood that when the RE offset values are different, the corresponding channel access priorities are different; when the sequences are different, the corresponding channel access priorities are different; the sequence offset values used in the same sequence are different. At the same time, their corresponding channel access priorities are different.
  • the method for determining the channel contention area includes one of the following: periodically configuring the channel contention area in the resource pool; periodically configuring the channel contention area in the carrier based on physical time slots; the base station instructs a COT to configure a Channel contention area: configure a channel contention area in a COT using preset rules.
  • the channel contention area when the resource pool configuration is used to indicate the channel contention area, the channel contention area may be periodically configured in the resource pool, or the channel contention area on a specific resource location may be indicated in a bitmap manner;
  • the carrier configuration indicates the channel contention area
  • the channel contention area can be configured periodically based on the physical time slot in the carrier; the base station can also be directly instructed to configure a channel contention area in a COT; A channel contention area is configured in the COT.
  • the method for determining the number of symbols in a channel contention area includes one of the following: determining the number of available symbols indicated by the channel occupancy notification signal; determining the symbol position in the time slot of the channel occupancy notification signal.
  • the number of symbols in the channel contention area is determined by the number of available symbols indicated by the channel occupancy notification signal, that is, the number of symbols occupied by the channel occupancy notification signal can be determined, and the channel occupancy notification signal area and the channel contention
  • the leading slot formed by the area can also be determined, and the number of symbols in the channel contention area can be determined according to the number of symbols contained in the leading slot and the number of symbols occupied by the channel occupancy notification signal;
  • the symbol position in the slot determines the number of symbols in the channel contention area, that is, the number of symbols in the channel contention area can be determined by the symbol position of the channel occupancy notification signal in the time slot and the end position of the leading slot.
  • the method for determining the number of contention units in a channel contention area includes one of the following: determine by the number of data units contained in the maximum COT duration; determine by the period of the channel contention area; determine by the period of the channel contention area The number of data units included is determined.
  • the data units and the channel contention units when the number of data units included in the maximum COT duration is used to determine the number of contention units in the channel contention area, the data units and the channel contention units have a one-to-one correspondence, that is, after determining the number of data units, you can The number of data units is regarded as the number of contention units in a channel contention area; when the period of a channel contention area is used to determine the number of contention units in a channel contention area, it can be performed according to a period value and the number of contention units included in a channel contention area Definite; when the number of contention units in a channel contention area is determined by the number of data units included in the channel contention area period, the data unit and the channel contention unit have a one-to-one correspondence, that is, after the number of data units is determined, the The number of data units is used as the number of contention units in a channel contention area.
  • At least one channel competition unit is selected in the first channel competition unit set, and a channel competition signal pattern is selected in the channel competition signal pattern set, and the channel competition signal pattern is selected on the channel competition unit according to the channel competition signal pattern Sending a channel competition signal; according to the selected data unit or the data unit indicated by the Media Access Control (MAC), select the channel competition unit corresponding to the data unit to send the channel competition signal.
  • the first set of channel competition units refers to the set of channel competition units used by the first type of communication nodes dedicated to sending channel occupancy notification signals in the data sending and receiving time-frequency resource region.
  • the first type of communication node may directly adopt at least one channel competition unit in the first channel competition unit set, and directly select a channel competition signal pattern in the channel competition signal pattern set, so as to follow the channel competition signal
  • the channel contention signal pattern selected in the pattern set sends the channel contention signal on the channel contention unit.
  • the first set of channel competition units refers to a set composed of the first M channel competition units in the channel competition area.
  • M is a positive integer greater than 1.
  • the channel competition unit corresponding to the data unit is selected, which means that the first type of communication node first selects the data unit in the data transmission and reception time-frequency resource area , and then according to the mapping relationship between the data unit and the channel competition unit, select the corresponding channel competition unit in the channel competition area to send the channel competition signal.
  • the channel contention area and the channel occupancy notification signal area jointly occupy at least one SL time slot.
  • the channel occupancy notification signal area occupies two symbols or symbol segments, and the channel contention area and the channel occupancy notification signal area may jointly occupy one or more SL time slots.
  • a guard symbol is configured between the channel occupancy notification signal area and the channel contention area; wherein, the guard symbol is used for switching between receiving and sending.
  • a guard symbol is configured between the channel occupancy notification signal area and the channel contention area, so as to facilitate the switching between sending and receiving of the first type of communication node or the second type of communication node.
  • the manner of determining the set of channel competition signal patterns includes: indicating by a pre-configured channel competition signal pattern table.
  • the channel competition signal pattern set refers to a set composed of one or more channel competition signal patterns randomly selected from the channel competition signal pattern table.
  • the channel competition signal pattern is determined by one of the following methods: randomly select one of the channel competition signal pattern sets; according to the priority, select one of the channel competition signal pattern sets corresponding to the priority; Using the pattern of the first channel competition signal in the channel competition signal pattern set; randomly selecting K symbols in the channel competition symbols as monitoring symbols, and using other symbols except the monitoring symbols as sending symbols.
  • selecting the channel competition signal pattern in the channel competition signal pattern set according to the priority refers to disposing a set of channel competition signal patterns (that is, the channel competition signal pattern set) for each priority, then the first type of communication A node may select a channel competition signal pattern from a set of channel competition signal patterns corresponding to the service priority according to its own service priority.
  • the first channel competition signal pattern refers to the first channel competition signal pattern in the channel competition signal pattern set, and may also refer to a channel competition signal pattern specific to the first type of communication node.
  • the method for determining the maximum value allowed in the time slot of the start symbol position of the channel occupancy notification signal includes one of the following: indicated by configuration information; pre-configured value.
  • the maximum allowed position of the start symbol of the channel occupancy notification signal within the time slot refers to the maximum value of the start symbol of the channel occupancy notification signal.
  • the configuration information may directly indicate the maximum value allowed by the start symbol position of the channel occupancy notification signal within the time slot, or directly preconfigure the allowed maximum value of the start symbol position of the channel occupancy notification signal within the time slot. maximum value.
  • FIG. 3 is a flow chart of another channel sharing method provided by the embodiment of the present application.
  • This embodiment can be executed by a channel sharing device.
  • the channel sharing device may be a communication node of the second type.
  • this embodiment includes S310-S320.
  • the first type of communication node when the first type of communication node monitors the channel before sending, and the monitoring is successful, the first type of communication node sends the channel occupation notification signal to the second type of communication node on the channel occupation notification resource, so that The second type of communication nodes compete for channel resources in the channel competition area within the COT.
  • the channel competition signal is sent on the channel competition unit in the channel competition area according to the pre-selected channel competition signal pattern.
  • the channel contention signal is used to compete for channel resources in the channel contention area.
  • the channel contention signal includes: sending symbols and monitoring symbols.
  • the sending symbol is used for sending a channel competition signal; the monitoring symbol is used for monitoring whether the second type communication node uses the channel resource.
  • the communication node of the first type sends a channel contention signal corresponding to the selected channel resource on the sending symbol, and monitors whether there is a resource conflict on the listening symbol.
  • the data units in the data unit set are in the data transmission and reception time-frequency resource area, or the data units are in the data transmission and reception time-frequency resource area.
  • the second type of communication node finds no resource conflict on the selected channel resource, it is considered that the second type of communication node has successfully competed for the channel resource in the channel contention area.
  • the second type of communication node successfully competes for channel resources in the channel competition area, it sends control messages and/or data on the time-frequency resources corresponding to the data unit or data unit set corresponding to the channel competition unit.
  • the data unit set refers to a set including at least two data units.
  • each channel competition unit corresponds to one data unit.
  • the channel competition signal is sent on multiple channel competition units, and in the case of successfully competing for channel resources on the multiple channel competition units, the timing of each data unit in the data unit set corresponding to the multiple channel competition units Send control messages and/or data on frequency resources; send channel competition signals on a channel competition unit, and in the case of successfully competing for channel resources on a channel competition unit, the time-frequency resource of the data unit corresponding to the channel competition unit to send control messages and/or data.
  • the second type of communication node sends a channel contention signal corresponding to the selected channel resource on the sending symbol, and monitors on the monitoring symbol whether there is a first type of communication node or other second type of communication node occupying the channel resource , that is, whether there is a resource conflict, and if there is a resource conflict, exit the competition, thereby avoiding resource selection conflicts among multiple communication nodes.
  • sending the channel competition signal on the channel competition unit in the channel contention area includes: according to the selected data unit or the data unit indicated by the MAC, selecting the channel competition unit corresponding to the data unit to send the channel competition signal.
  • the second type of communication node first selects a data unit in the time-frequency resource area for data transmission and reception, and then selects the corresponding channel competition unit in the channel competition area according to the mapping relationship between the data unit and the channel competition unit Send channel contention signal.
  • a COT includes the following areas: a channel occupancy notification signal area; a channel contention area; and a time-frequency resource area for data transmission and reception.
  • the data unit or the data unit set includes one of the following: the data unit is the first data unit in the data transmission and reception time-frequency resource area, or the data unit set is the first data unit in the data transmission and reception time-frequency resource area The first data unit set; the data unit is the data unit corresponding to the channel competition unit obtained through competition in the channel competition area, or the data unit set is the data unit set corresponding to the channel competition unit obtained through competition in the channel contention area.
  • the channel competition area includes: at least two channel competition units; each channel competition unit occupies at least one symbol or symbol segment in the time domain, and is composed of a logical RB group in the frequency domain; wherein, each One channel contention unit in the channel contention area corresponds to one data unit in the data transmission and reception time-frequency resource area; wherein, the logical RB group includes at least one physically continuous RB, or at least one physically discontinuous RB;
  • the data sending and receiving time-frequency resource area includes: at least two data units used for transmission by the first-type communication node or the second-type communication node.
  • the channel occupancy notification signal includes at least one of the following: current channel monitoring LBT success indication information; COT information; indication information of the resource pool to which COT resources belong; channel access priority;
  • the channel occupancy notification signal resource configuration method includes one of the following: resource pool configuration; each bandwidth part (BandWidth Part, BWP) or carrier configuration; configuration at the initial position of the COT.
  • the form of the channel occupancy announcement signal includes: a sequence of at least two symbols; wherein, the symbol includes one of the following: a symbol segment; a symbol determined by a specific subcarrier spacing (SubCarrier Spacing, SCS).
  • SCS subcarrier Spacing
  • the COT information is expressed in one of the following ways: RE offset value; different sequence; different sequence offset value of a sequence.
  • the channel access priority is expressed in one of the following ways: RE offset value; different sequence; different sequence offset value of a sequence.
  • the method for determining the channel contention area includes one of the following: periodically configuring the channel contention area in the resource pool; periodically configuring the channel contention area in the carrier based on physical time slots; the base station instructs a COT to configure a Channel contention area: a channel contention area is configured in a COT using preset rules.
  • the method for determining the number of symbols in a channel contention area includes one of the following: determining the number of available symbols indicated by the channel occupancy notification signal; determining the symbol position of the channel occupancy notification signal in the time slot.
  • the method for determining the number of contention units in a channel contention area includes one of the following: determine by the number of data units contained in the maximum COT duration; determine by the period of the channel contention area; determine by the period of the channel contention area The number of data units included is determined.
  • the manner of determining the set of channel competition signal patterns includes: indicating by a pre-configured channel competition signal pattern table.
  • the channel competition signal pattern is determined by one of the following methods: randomly select one of the channel competition signal pattern sets; according to the priority, select one of the channel competition signal pattern sets corresponding to the priority; The first channel contention signal pattern in the set of channel contention signal patterns is used.
  • the method for determining the maximum value allowed in the time slot of the start symbol position of the channel occupancy notification signal includes one of the following: indicated by configuration information; pre-configured value.
  • the relationship between the second type of communication node and the first type of communication node includes one of the following: the received energy of the competition signal of the second type of communication node is greater than the energy threshold, and the energy of the second type of communication node The current priority is greater than or equal to the priority indicated by the channel occupation notification signal; wherein, the second type of communication node is a target receiving node of the first type of communication node.
  • the UE performing channel monitoring before transmission at least sends a channel occupancy announcement signal (announce signal) when the monitoring result shows that the current channel is in an idle state.
  • a channel occupancy announcement signal announce signal
  • the time-frequency resource position and sequence selection of the channel occupancy notification signal may be determined based on channel access priority, or according to resource pool, BWP, carrier, cell configuration, or pre-configured parameters.
  • the channel occupancy notification signal indicates at least one of the following: current channel monitoring LBT success indication information; COT information; indication information of the resource pool to which the COT resource belongs; channel access priority;
  • the channel occupancy notification signal indicates an example of successful channel monitoring LBT: on the shared frequency spectrum, the UE performing channel monitoring before sending, when the monitoring result shows that the current channel is in an idle state, sends a channel occupancy notification signal including signal inside.
  • the channel occupancy notification signal indicates that the current channel monitors LBT successfully, or indicates that other UEs (that is, the second type of communication node in the above embodiment) can share the current COT resource.
  • the channel occupancy notification signal is mapped to a configured or preconfigured resource element ((Resource Element, RE).
  • each resource pool is configured with a dedicated channel occupancy notification signal sequence or a frequency-domain RE position.
  • the channel occupancy notification signal is sent on the configured channel occupancy notification signal resource corresponding to the selected resource pool, and the channel occupancy notification signal uses the sequence corresponding to the resource pool or fixed sequence.
  • each BWP or carrier is configured with a dedicated channel occupancy announcement signal sequence or frequency-domain RE position.
  • the channel occupancy notification signal is sent on the configured channel occupancy notification signal resource corresponding to the selected BWP or carrier, and the channel occupancy notification signal uses the sequence corresponding to the BWP or carrier or a fixed sequence.
  • the second type of communication node if other UEs monitoring the channel (that is, the second type of communication node) successfully monitor the channel occupancy notification signal, it indicates that the current channel LBT is successful, and can share the current COT resources, or the resources of the corresponding resource pool in the current COT .
  • the channel occupancy notification signal indicates an example of COT information: on an unlicensed carrier, a UE performing channel monitoring before transmission (that is, the first type of communication node in the above embodiment), according to its own channel access priority Do LBT.
  • a signal including a channel occupancy notification signal is sent based on the COT information.
  • the channel occupancy notification signal indicates COT information, for example, defines the 12 RE offset start positions of the channel occupancy notification signal in the frequency domain from 0 to 11, corresponding to 12 predefined COT durations, such as 1ms, 2ms, ...12ms; or, the channel occupancy notification signal indicates the number of time slots (slots) within the COT duration, for example, defines the 12 RE offset starting positions of the channel occupancy notification signal in the frequency domain 0 to 11, corresponding to 4slots , 6 slots, 8 slots, ... 26 slots.
  • the second type of communication node in the above embodiment if other UEs monitoring the channel (that is, the second type of communication node in the above embodiment) successfully monitor the channel occupancy notification signal and obtain the COT information from the channel occupancy notification signal, then they can determine that they can follow a certain The rules for use the resources of the corresponding resource pool in the COT information.
  • the channel occupancy notification signal indicates an example of channel access priority: on the shared frequency spectrum, the UE performing channel monitoring before sending (that is, the first type of communication node in the above embodiment), when the monitoring result is the current channel In the case of idle, based on the channel access priority, a signal including a channel occupancy notification signal is sent.
  • the channel occupation notification signal indicates the channel access priority.
  • the four RE offset starting positions of the channel occupancy notification signal in the frequency domain are defined to be 0, 3, 6, and 9, corresponding to four channel access priorities, for example, priority 1, priority 2, priority 3, and priority 4 .
  • the four RB offset starting positions of the channel occupancy notification signal in the frequency domain are defined as 0, 1, 2, and 3, corresponding to the four channel access priorities, for example, priority 1, priority 2, priority 3, priority 4.
  • other UEs monitoring the channel obtain channel access priority if they successfully monitor the channel occupancy notification signal, and if the priority corresponding to their business or data packets is higher than or equal to the channel occupancy notification signal priority, or the priority indication value is less than or equal to the priority indication value indicated by the channel occupancy notification signal, then it is judged that it can share the current COT resources according to certain rules, or the resources of the corresponding resource pool in the current COT.
  • the channel occupancy notification signal indicates an example of COT information and channel access priority: on the shared frequency spectrum, the UE performing channel monitoring before transmission, if the monitoring result shows that the current channel is idle, based on the channel access priority , to send a signal including a channel occupancy notification signal.
  • the channel occupancy notification signal indicates channel access priority and COT information.
  • four sequences of channel occupancy notification signals are defined, corresponding to four channel access priorities, such as priority 1, priority 2, priority 3, and priority 4.
  • it defines 12 RE offset starting positions 0 to 11 of the channel occupancy notification signal in the frequency domain, corresponding to 12 predefined COT durations, such as 1ms, 2ms, ... 12ms.
  • other UEs monitoring the channel obtain channel access priority and COT information if they successfully monitor the channel occupancy notification signal. If the priority corresponding to its own business or data packet is higher than or equal to the priority indicated by the channel occupancy notification signal, or the priority indication value is less than or equal to the priority indication value indicated by the channel occupancy notification signal, then it is judged that it can Share the current COT resources or the resources of the corresponding resource pool in the current COT according to certain rules. If multiple channel occupancy notification signals of one priority are successfully monitored, the longest COT duration is selected as the current COT duration. If multiple channel occupancy notification signals are successfully monitored for a COT duration, the channel occupancy notification signal corresponding to the highest priority is used as the basis for judging shared COT.
  • the channel occupancy notification signal indicates examples of COT information and channel access priority: any combination of the foregoing examples may be used, such as sequence (sequence offset shift), RE position, etc. carrying indication information.
  • COT information and channel access priority are indicated by the location of the RE.
  • the UE that performs channel monitoring before transmission sends signals including channel occupancy notification signals based on the channel access priority when the monitoring result shows that the current channel is idle.
  • the channel occupancy notification signal indicates channel access priority and COT information.
  • four RE groups for channel occupancy notification signals are defined, and each group corresponds to four channel access priorities, such as priority 1, priority 2, priority 3, and priority 4.
  • 6 RE offset starting positions 0 to 5 of the channel occupancy notification signal in the frequency domain are defined, corresponding to 6 predefined COT durations, such as 1ms, 2ms, 4ms, ... 12ms.
  • each (per) BWP/carrier is configured, or, per resource pool configures the resource parameters of the channel contention area.
  • the following three configuration methods are used to configure the resource parameters of the channel contention area.
  • FIG. 4 is a schematic diagram of configuration of multiple regions in a channel occupancy duration provided by an embodiment of the present application.
  • a channel occupancy duration may include: a channel occupancy notification signal area; a channel contention area; and a data transmission and reception time-frequency resource area.
  • a channel competition area and a channel occupancy notification signal area are configured for every N slots;
  • a channel occupies the Announcement Signal Area.
  • a channel contention area and a channel occupancy announcement signal area jointly occupy one or more SL time slots.
  • the current BWP is configured through a radio resource control (Radio Resource Control, RRC) message or a pre-configuration message
  • RRC Radio Resource Control
  • the channel occupancy notification signal area and the channel competition area corresponding to a resource pool are configured one for every 5 slots
  • a channel contention area and a channel occupancy notification signal area are configured one for every 5 slots
  • Fig. 5 is a schematic configuration diagram of an SL time slot shared by a channel competition area and a channel occupancy notification signal area provided by an embodiment of the present application. As shown in Fig. 5, a channel competition area and a channel occupancy notification signal area are used together An SL time slot (hereinafter referred to as leading slot), in which the channel occupancy notification signal area occupies 2 symbols or symbol chips, and the channel contention area uses all symbols in the slot except the guard symbol (guard symbol).
  • leading slot An SL time slot (hereinafter referred to as leading slot), in which the channel occupancy notification signal area occupies 2 symbols or symbol chips, and the channel contention area uses all symbols in the slot except the guard symbol (guard
  • the duration of the guard symbol is less than 16us; the channel competition signal consists of 10 symbols, including the sending symbol of the channel competition signal and the gap symbol for monitoring (that is, the monitoring symbol).
  • the channel contention signal pattern set may be indicated by a pre-configured channel contention signal pattern table.
  • Table 1 is a table of channel competition signal patterns provided by the embodiment of the present application. As shown in Table 1, the channel contention signal pattern set may be indicated by the channel contention signal pattern table.
  • Each channel competition signal pattern set may include one or more channel competition signal patterns, and each channel competition signal pattern includes 10 symbols. That is, for a specific symbol number configuration in the channel contention area, the channel contention signal pattern can be determined by one of the following methods:
  • Way 1 Randomly select one of the channel competition signal pattern sets.
  • the channel contention signal pattern is defined by taking the channel contention area as 10 symbols.
  • the example includes 8 channel competition signal patterns (patterns), each channel competition signal pattern includes 2 gap symbols (g), and other symbols are transmission symbols (s).
  • the gap symbol is used to monitor whether other UEs use the resource, and if a resource conflict is found, the resource competition will be withdrawn.
  • the channel contention signal pattern may be determined by the UE independently.
  • Mode 3 According to the priority, one of the channel contention signal pattern sets corresponding to the priority is selected.
  • the base station configures or pre-configures to the UE, and the priority corresponds to one or a group of channel contention signal patterns, that is, the set of channel contention signal patterns corresponding to the priority.
  • the UE sending the channel contention signal selects one of the channel contention signal patterns from the set of channel contention signal patterns corresponding to the priority as the pattern for actually sending the contention signal.
  • Way 4 Use the first channel competition signal pattern in the channel competition signal pattern set.
  • the first channel competition signal pattern refers to the first channel competition signal pattern in the channel competition signal pattern table, that is, the channel competition signal pattern corresponding to the pattern symbol 1, wherein symbols 5 and 10 are gap symbols, The other symbols are transmit symbols.
  • FIG. 6 is a schematic diagram of a configuration of multiple areas between two channel occupation durations provided by an embodiment of the present application.
  • the slot where the LBT success moment is located is a leading time slot (also called a leading slot).
  • the leading slot refers to the time slot shared by the channel occupancy notification signal area and the channel competition area.
  • the area after the channel occupancy notification signal area is the channel competition area.
  • the UE performs channel monitoring before sending, and starts to send the channel occupancy notification signal when the monitoring result shows that the current channel is idle.
  • the time slot where the channel occupancy notification signal is sent is the heading slot
  • the channel competition area is the area between the end of the heading slot after the channel occupancy notification signal is sent in the heading slot.
  • Figure 7 is a schematic configuration diagram of another SL time slot jointly occupied by the channel competition area and the channel occupancy notification signal area provided by the embodiment of the present application, as shown in Figure 7, wherein the channel occupancy notification signal area occupies 2 symbols or Symbol chip, after the channel competition area actually uses the channel occupancy notification signal in the heading slot, other symbols except the guard symbol are removed.
  • the duration of the guard symbol is less than 16us.
  • the number of symbols in the channel contention area is determined by the position of the start symbol of the channel occupancy notification signal, wherein the channel contention area includes symbols for sending contention signals and gap symbols for monitoring.
  • the maximum allowed value of the starting symbol position of the channel occupancy notification signal in a time slot may be indicated by configuration information, or may be a pre-configured value.
  • Configuration method 3 In the channel access mode of Frame-based Equipment (FBE), set a specific COT duration. At the beginning of each COT, resources occupied by the channel contention area are configured.
  • FIG. 8 is a schematic diagram of configuration of multiple areas in another channel occupation duration provided by the embodiment of the present application. As shown in FIG. 8 , the COT start position after the LBT success moment is the channel competition area.
  • FBE Frame-based Equipment
  • a COT duration includes a channel contention area and a data sending and receiving time-frequency resource area.
  • T x is a pre-configured value, for example, can take a value within a range of 1 to 10 ms.
  • the mapping relationship between the channel contention unit in the channel contention area and the data unit in the data transmission and reception time-frequency resource area is described.
  • the channel contention area may be equally divided into multiple channel contention units, wherein the frequency domain granularity of the channel contention units is specified by configuration signaling or pre-configuration. Starting from the lowest bit in the frequency domain, the channel competition units are sequentially numbered as C1, C2, ... Cn; or, first in the frequency domain and then in the code domain, they are sequentially numbered as C1, C2, ... Cn.
  • the time-frequency resource area for data transmission and reception is a time-frequency resource unit with granularity of slot, mini slot, aggregation slots in the time domain and subchannel and RB set in the frequency domain, called a data unit.
  • the granularity in the frequency domain may be composed of continuous RBs, or may be a logical RB group composed of discrete RE sets in the frequency domain.
  • the data units are sequentially numbered as R1, R2, ... Rm in the order of the frequency domain first and then the time domain, and the start slot of the time domain is the slot immediately after the heading slot.
  • the process of selecting a channel competition unit and the process of sending a channel competition signal on the selected channel competition unit are described.
  • Example 1 Independent selection of channel competition units.
  • the UE that has sent the channel occupancy notification signal randomly selects a channel competition unit within the COT time range, or selects the first channel competition unit, or selects one or more channel competition units in the first channel competition unit set channel competition unit.
  • the channel contention signal is sent according to a channel contention signal pattern.
  • the channel competition signal pattern may be a randomly selected channel competition signal pattern, or a channel competition signal pattern selected according to priority, or a first channel competition signal pattern.
  • the channel competition signal pattern After determining the channel competition signal pattern, send the channel competition signal in the channel competition area according to the channel competition signal pattern, and monitor the channel competition signal sent by other UEs on the gap symbol, if the channel competition signal is detected, and the competition signal of other UE is received If the energy is greater than the energy threshold (the energy threshold is specified by configuration signaling or pre-configuration), the sending of the channel competition signal is quit, and the sending of control messages and/or data on the data unit corresponding to the channel competition unit is abandoned.
  • the energy threshold is specified by configuration signaling or pre-configuration
  • the first channel competition unit refers to the channel competition unit set corresponding to the data unit on the first slot in the data transmission and reception time-frequency resource area; the first competition unit set refers to the data transmission and reception time-frequency resource area A set of contention units dedicated to sending a notification signal UE.
  • Selecting channel competition signal patterns according to priority means that a corresponding group of channel competition signal patterns is configured for each priority, and the UE can select one of the channel competition signal patterns in a group of channel competition signal patterns corresponding to the priority according to the priority.
  • the signal pattern is used as its channel competition signal pattern.
  • the first channel competition signal pattern is selected, for example, the UE that has sent the channel occupancy notification signal directly selects a specific first channel competition signal pattern.
  • Example 2 The UE selects a channel contention unit according to the resource location indicated by the MAC layer.
  • the UE that has sent the channel occupancy notification signal sends the channel competition signal on the channel competition unit determined according to the data unit position of the grant, or on the channel competition unit indicated by the MAC layer, within the COT time range.
  • the channel contention signal is sent according to the channel contention signal pattern.
  • the channel competition signal pattern may be a randomly selected channel competition signal pattern, or a channel competition signal pattern selected according to priority, and the channel competition signal is sent in the channel competition area according to the channel competition signal pattern.
  • selecting the channel competition signal pattern according to the priority means that a corresponding group of channel competition signal patterns is configured for each priority, and the UE selects the channel competition signal pattern in the corresponding group of channel competition signal patterns according to the priority. One of the channel competition signal patterns is selected as its channel competition signal pattern.
  • Example 3 For a UE that successfully detects the channel occupancy notification signal, if the received energy of the competition signal is greater than the energy threshold value (the threshold is indicated by the configuration signaling or specified by pre-configuration), then on the randomly selected channel competition unit, or, On the first channel competition unit, or on one or more channel competition units selected in the first channel competition unit group, or on the channel competition unit determined according to the position of the data unit of the grant, or on the MAC layer indication The channel contention signal is sent on the channel contention unit. If the COT duration is obtained, within the COT time, send a channel competition signal on the randomly selected channel competition unit, or on the channel competition unit determined according to the grant data unit position, or on the channel competition unit indicated by the MAC layer .
  • the energy threshold value the threshold is indicated by the configuration signaling or specified by pre-configuration
  • the UE sends the channel competition signal on the aforementioned channel competition unit.
  • the channel competition signal is sent in the channel competition area according to the channel competition signal pattern, and the channel competition signal sent by other UEs is monitored on the gap symbol, if detected If the channel competition signal is received, and the received energy of the competition signal is greater than the energy threshold value (the energy threshold value is specified by the configuration signaling or pre-configuration), then exit the sending of the channel competition signal, and give up on the data unit corresponding to the channel competition signal to send control messages and/or data.
  • the energy threshold value is specified by the configuration signaling or pre-configuration
  • the channel competition unit selected by the UE may be a plurality of continuous channel competition units (corresponding to multiple continuous subchannel data units), or a plurality of discontinuous channel competition units. (Corresponding to multiple data units on multiple slots.)
  • Example 4 For UEs that do not compete for time-frequency resources in the channel contention area, at the end of the channel contention area, the channel contention units detected as idle in the entire channel contention area are used as a set of resources to be selected, which can be selected here In the resource set, select resources randomly, or randomly select resources with a probability, where the probability value is indicated by the configuration message, or determined by pre-configuration, or a probability value corresponding to the priority.
  • FIG. 9 is a structural block diagram of a channel sharing device provided in an embodiment of the present application. This embodiment is applied to channel sharing equipment. Wherein, the channel sharing device is a communication node of the first type. As shown in FIG. 9 , this embodiment includes: a first transmitter 910 and a second transmitter 920 .
  • the first transmitter 910 is configured to send the channel competition signal on the channel competition unit in the channel competition area according to the pre-selected channel competition signal pattern within one channel occupancy time COT when the current channel is detected to be in an idle state. Signal;
  • the second transmitter 920 is configured to send control messages and/or data on the time-frequency resources of the data unit or data unit set corresponding to the channel contention unit in the case of successfully competing for channel resources in the channel contention area; wherein, the data unit The data units or data units in the set are in the data transmission and reception time-frequency resource area.
  • a COT includes the following areas: a channel occupancy notification signal area; a channel contention area; and a time-frequency resource area for data transmission and reception.
  • the channel occupation notification signal is sent to the second type communication node on the channel occupation notification signal resource.
  • the data unit or set of data units includes one of the following:
  • the data unit is the first data unit in the data transmission and reception time-frequency resource area, or the data unit set is the first data unit set in the data transmission and reception time-frequency resource area;
  • the data unit is a data unit corresponding to the channel competition unit obtained through competition in the channel competition area, or the data unit set is a data unit set corresponding to the channel competition unit obtained through competition in the channel competition area.
  • the channel competition area includes: at least two channel competition units; each channel competition unit occupies at least one symbol or symbol segment in the time domain, and is composed of a logical resource block RB group in the frequency domain; wherein, A channel contention unit in each channel contention area corresponds to a data unit in the data transmission and reception time-frequency resource area; wherein, the logical RB group includes at least one physically continuous RB, or at least one physically discontinuous RB ;
  • the data sending and receiving time-frequency resource area includes: at least two data units used for transmission by the first-type communication node or the second-type communication node.
  • the channel occupancy notification signal includes at least one of the following: current channel monitoring LBT success indication information; COT information; indication information of the resource pool to which COT resources belong; channel access priority;
  • the channel occupancy notification signal resource configuration method includes one of the following: resource pool configuration; each bandwidth part (BandWidth Part, BWP) or carrier configuration; configuration at the initial position of the COT.
  • the form of the channel occupancy announcement signal includes: a sequence of at least two symbols; wherein, the symbol includes one of the following: a symbol segment; a symbol determined by a specific subcarrier spacing (SubCarrier Spacing, SCS).
  • SCS subcarrier Spacing
  • the COT information is expressed in one of the following ways: RE offset value; different sequence; different sequence offset value of a sequence.
  • the channel access priority is expressed in one of the following ways: RE offset value; different sequence; different sequence offset value of a sequence.
  • the method of determining the channel contention area includes one of the following:
  • the base station instructs a COT to configure a channel contention area
  • a channel contention area is configured in a COT using preset rules.
  • the method for determining the number of symbols in a channel contention area includes one of the following:
  • the method for determining the number of contention units in a channel contention area includes one of the following:
  • sending the channel contention signal on the channel contention unit in the channel contention area includes one of the following:
  • the channel competition unit corresponding to the data unit is selected to send the channel competition signal.
  • the channel contention area and the channel occupancy notification signal area jointly occupy at least one SL time slot.
  • a guard symbol is configured between the channel occupancy notification signal area and the channel contention area; wherein, the guard symbol is used for switching between receiving and sending.
  • the method for determining the set of channel competition signal patterns includes:
  • the channel contention signal pattern is determined by one of the following methods:
  • select one of the channel contention signal pattern sets corresponding to the priority
  • K symbols are randomly selected as monitoring symbols, and other symbols except the monitoring symbols are used as sending symbols.
  • the method for determining the maximum value allowed in the time slot of the start symbol position of the channel occupancy notification signal includes one of the following: indicated by configuration information; pre-configured value.
  • the relationship between the second type of communication node and the first type of communication node includes one of the following: the received energy of the competition signal of the second type of communication node is greater than the energy threshold, and the energy of the second type of communication node The current priority is greater than or equal to the priority indicated by the channel occupation notification signal; wherein, the second type of communication node is a target receiving node of the first type of communication node.
  • the channel sharing device provided in this embodiment is set to implement the channel sharing method applied to the first type of communication node in the embodiment shown in FIG. .
  • FIG. 10 is a structural block diagram of another channel sharing device provided in an embodiment of the present application. This embodiment is applied to channel sharing equipment. Wherein, the channel sharing device is a communication node of the second type. As shown in FIG. 10 , this embodiment includes: a third transmitter 1010 and a fourth transmitter 1020 .
  • the third transmitter 1010 is configured to, in the case of receiving the channel occupancy announcement signal sent by the first type of communication node, within one channel occupancy time length COT, according to the pre-selected channel competition signal pattern on the channel competition unit in the channel competition area Send channel contention signal;
  • the fourth transmitter 1020 is configured to send control messages and/or data on the time-frequency resources of the data unit or data unit set corresponding to the channel competition unit in the case of successfully competing for channel resources in the channel competition area; wherein, the data unit The data units or data units in the set are in the data transmission and reception time-frequency resource area.
  • sending the channel competition signal on the channel competition unit in the channel contention area includes: according to the selected data unit or the data unit indicated by the MAC, selecting the channel competition unit corresponding to the data unit to send the channel competition signal.
  • a COT includes the following areas: a channel occupancy notification signal area; a channel contention area; and a time-frequency resource area for data transmission and reception.
  • the data unit or the data unit set includes one of the following: the data unit is the first data unit in the data transmission and reception time-frequency resource area, or the data unit set is the data transmission and reception time-frequency The first data unit set in the resource area; the data unit is the data unit corresponding to the channel competition unit obtained through competition in the channel competition area, or the data unit set is the data unit set corresponding to the channel competition unit obtained through competition in the channel competition area.
  • the channel competition area includes: at least two channel competition units; each channel competition unit occupies at least one symbol or symbol segment in the time domain, and is composed of a logical RB group in the frequency domain; wherein, each One channel contention unit in the channel contention area corresponds to one data unit in the data transmission and reception time-frequency resource area; wherein, the logical RB group includes at least one physically continuous RB, or at least one physically discontinuous RB;
  • the data sending and receiving time-frequency resource area includes: at least two data units used for transmission by the first-type communication node or the second-type communication node.
  • the channel occupancy notification signal includes at least one of the following: current channel monitoring LBT success indication information; COT information; indication information of the resource pool to which COT resources belong; channel access priority;
  • the channel occupancy notification signal resource configuration method includes one of the following: resource pool configuration; each bandwidth part (BandWidth Part, BWP) or carrier configuration; configuration at the initial position of the COT.
  • the form of the channel occupancy announcement signal includes: a sequence of at least two symbols; wherein, the symbol includes one of the following: a symbol segment; a symbol determined by a specific subcarrier spacing (SubCarrier Spacing, SCS).
  • SCS subcarrier Spacing
  • the COT information is expressed in one of the following ways: RE offset value; different sequence; different sequence offset value of a sequence.
  • the channel access priority is expressed in one of the following ways: RE offset value; different sequence; different sequence offset value of a sequence.
  • the method for determining the channel contention area includes one of the following: periodically configuring the channel contention area in the resource pool; periodically configuring the channel contention area in the carrier based on physical time slots; the base station instructs a COT to configure a Channel contention area: a channel contention area is configured in a COT using preset rules.
  • the method for determining the number of symbols in a channel contention area includes one of the following: determining the number of available symbols indicated by the channel occupancy notification signal; determining the symbol position in the time slot of the channel occupancy notification signal.
  • the method for determining the number of contention units in a channel contention area includes one of the following: determine by the number of data units contained in the maximum COT duration; determine by the period of the channel contention area; determine by the period of the channel contention area The number of data units included is determined.
  • the manner of determining the set of channel competition signal patterns includes: indicating by a pre-configured channel competition signal pattern table.
  • the channel competition signal pattern is determined by one of the following methods: randomly select one of the channel competition signal pattern sets; according to the priority, select one of the channel competition signal pattern sets corresponding to the priority; The first channel contention signal pattern in the set of channel contention signal patterns is used.
  • the method for determining the maximum value allowed in the time slot of the start symbol position of the channel occupancy notification signal includes one of the following: indicated by configuration information; pre-configured value.
  • the relationship between the second type of communication node and the first type of communication node includes one of the following: the received energy of the competition signal of the second type of communication node is greater than the energy threshold, and the energy of the second type of communication node The current priority is greater than or equal to the priority indicated by the channel occupation notification signal; wherein, the second type of communication node is a target receiving node of the first type of communication node.
  • the channel sharing device provided in this embodiment is set to implement the channel sharing method applied to the second type of communication node in the embodiment shown in FIG. .
  • Fig. 11 is a schematic structural diagram of a channel sharing device provided by an embodiment of the present application.
  • the device provided by this application includes: a processor 1110 , a memory 1120 and a communication module 1130 .
  • the number of processors 1110 in the device may be one or more, and one processor 1110 is taken as an example in FIG. 11 .
  • the number of storage 1120 in the device may be one or more, and one storage 1120 is taken as an example in FIG. 11 .
  • the processor 1110, the memory 1120, and the communication module 1130 of the device may be connected through a bus or in other ways, and connection through a bus is taken as an example in FIG. 11 .
  • the device may be a communication node of the first type (for example, an LBT-successful UE).
  • the memory 1120 can be configured to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the equipment in any embodiment of the present application (for example, the first sending device in the channel sharing device) device 910 and the second transmitter 920).
  • the memory 1120 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to usage of the device, and the like.
  • the memory 1120 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices.
  • memory 1120 may include memory located remotely from processor 1110, and such remote memory may be connected to the device through a network.
  • networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • the communication module 1130 is configured to perform communication interaction between the communication nodes of the first type and the communication nodes of the second type.
  • the channel sharing device is a communication node of the first type
  • the device provided above may be configured to execute the channel sharing method applied to the communication node of the first type provided by any of the above embodiments, and have corresponding functions and effects.
  • the device provided above may be configured to execute the channel sharing method applied to the communication node of the second type provided by any of the above embodiments, and have corresponding functions and effects.
  • the embodiment of the present application also provides a storage medium containing computer-executable instructions, and the computer-executable instructions are used to execute a channel sharing method applied to a first type of communication node when executed by a computer processor, and the method includes: When the current channel is detected to be idle, send a channel competition signal on the channel competition unit in the channel competition area according to the pre-selected channel competition signal pattern within a channel occupancy time COT; successfully compete for channel resources in the channel competition area In the case of , the control message and/or data are sent on the time-frequency resource of the data unit or data unit set corresponding to the channel contention unit.
  • the embodiment of the present application also provides a storage medium containing computer-executable instructions, and the computer-executable instructions are used to execute a channel sharing method applied to a second type of communication node when executed by a computer processor, the method comprising: In the case of receiving the channel occupancy announcement signal sent by the first type of communication node, within a channel occupancy time length COT, send the channel competition signal on the channel competition unit in the channel competition area according to the pre-selected channel competition signal pattern; in the channel competition area In the case of successfully competing for channel resources, the control message and/or data are sent on the data transmission and reception time-frequency resources of the data unit corresponding to the channel competition unit.
  • user equipment covers 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 can 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, which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
  • Computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related 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
  • Any logic flow block diagrams in the drawings 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 Read-Only Memory (ROM), Random Access Memory (RAM), Optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc.
  • Computer readable media may include non-transitory storage media.
  • Data processors can be of any type suitable for the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC ), programmable logic devices (Field-Programmable Gate Array, FGPA), and processors based on multi-core processor architectures.
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FGPA programmable logic devices
  • processors based on multi-core processor architectures such as but not limited to general purpose computers, special purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC ), programmable logic devices (Field-Programmable Gate Array, FGPA), and processors based on multi-core processor architectures.
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FGPA programmable logic devices

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Abstract

本申请提出一种信道共享方法、设备和存储介质。该方法包括：响应于监听到当前信道处于空闲状态，在一个信道占用时长COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号；响应于确定信道竞争区域中成功竞争信道资源，在信道竞争单元所对应数据单元或数据单元集合的时频资源上发送以下至少之一：控制消息，数据；其中，数据单元集合中的数据单元在数据发送与接收时频资源区域中，或数据单元在数据发送与接收时频资源区域中。

Description

信道共享方法、设备和存储介质 技术领域
本申请涉及通信领域，例如涉及一种信道共享方法、设备和存储介质。
背景技术
在V2X通信、边链路(Sidelink，SL)通信、用户设备(User Equipment，UE)与UE直接通信(D2D)中，资源分配有两种方式：模式一：基站调度方式分配资源；模式二：UE自主选择资源。对于模式二，UE在共享使用一个资源池、载波/带宽部分(BandWidth Part，BWP)，或信道(channel)时，需要通过感知(sensing)获得可用的资源或资源集合。通常情况下，对于周期性业务，可以通过监听发送UE预留的资源位置，避免与其发生资源冲突。但是对于一个竞争获得的传输机会，如何解决多个UE之间的资源选择冲突，是一个亟待解决的问题。
发明内容
本申请实施例提供一种信道共享方法、设备和存储介质，在非授权载波上实现了多个通信节点之间的资源复用，以及减少了通信节点之间的资源冲突。
本申请实施例提供一种信道共享方法，应用于第一类型通信节点，包括：
响应于监听到当前信道处于空闲状态，在一个信道占用时长COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号；
响应于确定所述信道竞争区域中成功竞争信道资源，在所述信道竞争单元所对应数据单元或数据单元集合的时频资源上发送以下至少之一：控制消息，数据；其中，所述数据单元集合中的数据单元在数据发送与接收时频资源区域中，或所述数据单元在数据发送与接收时频资源区域中。
本申请实施例提供一种信道共享方法，应用于第二类型通信节点，包括：
响应于确定接收第一类型通信节点发送的信道占用通告信号，在一个信道占用时长COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号；
响应于确定所述信道竞争区域中成功竞争信道资源，在所述信道竞争单元所对应数据单元或数据单元集合的时频资源上发送以下至少之一：控制消息，数据；其中，所述数据单元集合中的数据单元在数据发送与接收时频资源区域中，或所述数据单元在数据发送与接收时频资源区域中。
本申请实施例提供一种信道共享设备，包括：通信模块，存储器，以及一个或多个处理器；
所述通信模块，配置为在第一类型通信节点和第二类型通信节点之间进行通信交互；
所述存储器，配置为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上述任一实施例所述的方法。
本申请实施例提供一种存储介质，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上述任一实施例所述的方法。
附图说明
图1是本申请实施例提供的一种信道共享方法的流程图；
图2是本申请实施例提供的一种信道占用时长中多个区域的配置示意图；
图3是本申请实施例提供的另一种信道共享方法的流程图；
图4是本申请实施例提供的一种信道占用时长中多个区域的配置示意图；
图5是本申请实施例提供的一种信道竞争区域和信道占用通告信号区域共同占用的一个SL时隙的配置示意图；
图6是本申请实施例提供的一种两个信道占用时长之间多个区域的配置示意图；
图7是本申请实施例提供的另一种信道竞争区域和信道占用通告信号区域共同占用的一个SL时隙的配置示意图；
图8是本申请实施例提供的另一种信道占用时长中多个区域的配置示意图；
图9是本申请实施例提供的一种信道共享装置的结构框图；
图10是本申请实施例提供的另一种信道共享装置的结构框图；
图11是本申请实施例提供的一种信道共享设备的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行说明。以下结合实施例附图对本申请进行描述，所举实例仅用于解释本申请，并非用于限定本申请的范围。
V2X通信、Sidelink通信、UE与UE直接通信(D2D)中，资源分配有两种方式：模式一：基站调度方式分配资源；模式二：UE自主选择资源。对于模式一，经过中心节点，如基站的调度，UE之间的资源可以做到无冲突。对于模式二，由于没有中心节点的调度，UE之间需要按照一定规则分享资源的同时，还要尽可能的避免资源冲突。在长期演进(Long Term Evolution，LTE)V2X和新空口(New Radio，NR)V2X中，针对周期性业务的传输特性，UE可以通过接收发送UE发送的边链路控制信息(SideLink Control Information，SCI)信息，获知其在以后周期的资源使用信息，在执行资源选择时进行避开，从而实现多UE之间的资源复用。
但是，对于一个竞争获得的传输资源，如非授权载波上，通过发送前监听(Listen Before Talk，LBT)获得的一个信道占用时长(Channel Occupancy Time，COT)时间段内，如何实现多UE之间的资源复用并减小UE之间的资源冲突方案，是一个亟待解决的问题。本申请实施例提出一种信道共享方法，在非授权载波上实现了多个通信节点之间的资源复用，以及减少了通信节点之间的资源冲突。
在一实施例中，图1是本申请实施例提供的一种信道共享方法的流程图。本实施例可以由信道共享设备执行。其中，信道共享设备可以为第一类型通信节点。示例性地，第一类型通信节点指的是LBT成功的UE。如图1所示，本实施例包括S110-S120。
S110、在监听到当前信道处于空闲状态的情况下，在一个COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号。
在一实施例中，第一类型通信节点在发送前进行信道监听，在监听结果为当前信道处于空闲状态的情况下，在一个COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号。其中，信道竞争信号用于在信道竞争区域上竞争信道资源。在一实施例中，信道竞争信号包括：发送符号和监听符号。其中，发送符号用于发送信道竞争信号；监听符号用于监听第二类型通信节点是否使用该信道资源。在一实施例中，第一类型通信节点在发送符号上发送所选择信道资源对应的信道竞争信号，以及在监听符号上监听是否存在资源冲突。在一实施例中，在一个COT内可以包括信道竞争区域和数据发送与接收时频资源区域这两个区域，并且，信道竞争区域所在的一个或多个时隙(slot)称为前导slot。
S120、在信道竞争区域中成功竞争信道资源的情况下，在信道竞争单元所对应数据单元或数据单元集合的时频资源上发送控制消息和/或数据。
其中，数据单元集合中的数据单元在数据发送与接收时频资源区域中，或数据单元在数据发送与接收时频资源区域中。在一实施例中，第一类型通信节点在所选择的信道资源上未发现资源冲突，则认为第一类型通信节点在信道竞争区域中成功竞争信道资源。第一类型通信节点在信道竞争区域中成功竞争信道资源的情况下，在信道竞争单元对应的数据单元或数据单元集合对应的时频资源上发送控制消息和/或数据。其中，数据单元集合指的是包括至少两个数据单元的集合。在一实施例中，在控制消息和/或数据的数据量比较大的情况下，采用至少两个信道竞争单元竞争信道资源，则将在所有信道竞争单元所对应的每个数据单元的时频资源上发送控制消息和/或数据。在一实施例中，信道竞争单元与数据单元之间是一一对应关系，即每个信道竞争单元对应一个数据单元。可以理解为，在多个信道竞争单元上发送信道竞争信号，并且在多个信道竞争单元上成功竞争信道资源的情况下，在多个信道竞争单元对应的数据单元集合中的每个数据单元的时频资源上发送控制消息和/或数据；在一个信道竞争单元上发送信道竞争信号，并且在一个信道竞争单元上成功竞争信道资源的情况下，在该信道竞争单元对应的数据单元的时频资源上发送控制消息和/或数据。在一实施例中，第一类型通信节点在发送符号上发送所选择信道资源对应的信道竞争信号，在监听符号上监听是否存在第二类型通信节点占用该信道资源，即是否存在资源冲突，若存在资源冲突，则退出竞争，从而避免了多个通信节点之间的资源选择冲突。
在一实施例中，在一个COT内，包括下述区域：信道占用通告信号区域；信道竞争区域；数据发送与接收时频资源区域。图2是本申请实施例提供的一种信道占用时长中多个区域的配置示意图。如图2所示，在一个COT内，包括信道占用通告信号区域、信道竞争区域和数据发送与接收时频资源区域这三个区域。其中，信道占用通告信号区域和信道竞争区域所在的一个或多个slot称为前导slot。
在一实施例中，在一个COT的开始位置，在信道占用通告信号资源上向第二类型通信节点发送信道占用通告信号。在一实施例中，在一个COT内包括信道占用通告信号区域、信道竞争区域和数据发送与接收时频资源区域这三个区域的情况下，在COT的开始位置，在信道占用通告信号资源上向第二类型通信节点发送信道占用通告信号。其中，第二类型通信节点指的是其它监听信道的UE。在一实施例中，第二类型通信节点与第一类型通信节点之间的关系，包括下述之一：第二类型通信节点的竞争信号接收能量大于能量门限值，第二类型通信节点的当前优先级大于或等于所述信道占用通告信号指示的优先级；其中，第二类型通信节点为第一类型通信节点的目标接收节点。在一实施例中，第一类型通信节点在发送前监听信道，并且监听成功的情况下，在信道占用通告资源上向第二类型通信节点发送信道占用通告信号，以使第二类型通信节点对该COT内信道竞争区域内的信道资源进行竞争，从而实现多通信节点之间的资源复用，并且减少多个通信节点之间的资源冲突。
在一实施例中，数据单元或数据单元集合包括下述之一：数据单元为数据发送与接收时频资源区域中的第一数据单元，或数据单元集合为数据发送与接收时频资源区域中的第一数据单元集合；数据单元为信道竞争区域中竞争得到的信道竞争单元对应的数据单元，或数据单元集合为信道竞争区域中竞争得到的信道竞争单元对应的数据单元集合。在一实施例中，第一数据单元指的是数据发送与接收时频资源区域中的第一个数据单元；第一数据单元集合指的是数据发送与接收时频资源区域中的前N个数据单元，其中，N为大于1的正整数。在一实施例中，可以直接将数据发送与接收时频资源中的第一个数据单元或前N个数据单元组成的第一数据单元集合中的一个或多个数据单元作为第一类型通信节点的数据单元。在一实施例中，第一类型通信节点可以按照预先选择的信道竞争信号图样在信道竞争区域中的信道竞争单元上发送信道竞争信号，并将成功竞争信道资源的信道竞争单元对应的数据单元作为发送控制消息和/或数据的数据单元；相应的，在控制消息和/或数据的数据量比较大时，即采用多个信道竞争单元发送信道竞争信号时，将成功竞争信道资源的所有信道竞争单元所对应数据单元集合中的每个数据单元作为发送控制消息和/或数据的数据单元。
在一实施例中，信道竞争区域包括：至少两个信道竞争单元；每个信道竞争单元在时域上占用至少一个符号或符号片段，在频域上由一个逻辑资源块(Resource Block，RB)组构成；其中，每个信道竞争区域中的一个信道竞争单元与数据发送与接收时频资源区域的一个数据单元一一对应；其中，逻辑RB组包括至少一个物理连续的RB，或至少一个物理上不连续的RB；
数据发送与接收时频资源区域包括：至少两个用于第一类型通信节点或第二类型通信节点传输的数据单元。其中，符号片段指的是将一个符号划分成多个等长的片段。在一实施例中，每个信道竞争单元由时域上一定数量的符号或符号片段，频域上一个逻辑RB组构成。每组信道竞争信号图样对应一定数量的符号或符号片段。在信道竞争信号图样中包括发送符号和监听符号，其中，监听符号可以包括0个，也可以包括一个或多个；在包括多个监听符号时，每个信道竞争信号图样中的多个监听符号之间是不连续的。在一实施例中，一个数据单元对应一个信道竞争单元，也可以理解为，数据发送与接收时频资源区域的一个slot内的一个子信道(subchannel)资源与信道竞争区域中的一个信道竞争单元之间存在一一对应关系，即一个信道单元对应一个subchannel。其中，一个subchannel为数据单元的频域粒度。在一实施例中，信道占用通告信号区域在时域上占用一个或多个符号，或者，信道占用通告信号区域在时域上占用一个或多个符号片段；信道占用通告信号区域在频域上以交错(interlace)方式映射到信道内的资源元素(Resource Element，RE)上，或者，信道占用通告信号区域在频域上映射在一个逻辑RB组上。在一实施例中，在数据发送与接收时频资源区域包括多个用于通信节点传输的时隙，比如，可以用于物理边链路控制信道(Physical Sidelink Control Channel，PSCCH)、物理边链路共享信道(Physical Sidelink Shared Channel，PSSCH)以及物理边链路反馈信道(Physical Sidelink Feedback Channel，PSFCH)的发送。
在一实施例中，一个信道竞争单元对应一个逻辑RB组，并且，一个逻辑RB组可以由一定数量的连续RB或不连续RB组成；一个信道竞争单元对应一个RE组，并且，一个RE组可以由一定数量的连续RE或不连续RE组成。
在一实施例中，信道占用通告信号包括下述至少之一：当前信道监听LBT成功的指示信息；COT信息；COT资源所属资源池的指示信息；信道访问优先级；信道竞争区域的符号数。在一实施例中，当前信道监听LBT监听成功的指示信息可以为一个固定序列；COT信息包括可以共享的COT时长或slot数量；COT资源所属资源池的指示信息，指的是COT资源所在的资源池的指示信息，可以理解为，在第一类型通信节点进行LBT成功时，第一类型通信节点可以对属于同一资源池的其它UE发送信道占用通告信号；信道访问优先级指的是可以允许共享的UE的优先级；信道竞争区域的符号数，指的是信道竞争区域所包含的符号数。
在一实施例中，信道占用通告信号资源的配置方式包括下述之一：资源池配置；每个带BWP或载波配置；在COT最开始位置配置。在一实施例中，可以通过资源池、每个BWP或载波配置信道占用通告信号资源；也可以直接在COT内最开始位置配置信道占用通告信号资源。
在一实施例中，信道占用通告信号的形式包括：至少两个符号的序列；其中，符号包括下述之一：符号片段；特定子载波间隔(SubCarrier Spacing，SCS)确定的符号。在一实施例中，信道占用通告信号优先为序列，该序列可以包括至少两个符号(其中1个符号作为自动增益控制(Automatic Gain Control，AGC)符号)，其中，符号可以为基于Comb结构确定的符号片段，也可以为一个特定SCS确定的符号。其中，信道占用通告信号的SCS可以与数据的SCS不相同。
在一实施例中，COT信息采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。在一实施例中，可以采用RE偏移值、不同序列或一个序列的不同序列偏移值来表示COT信息。可以理解为，在RE偏移值不同时，其对应的COT信息是不同的，即COT的时长是不同的；在序列不同时，其对应的COT信息是不同的，即COT的时长是不同的；在同一个序列采用的序列偏移值不同时，其对应的COT信息是不同的，即COT的时长是不同的。
在一实施例中，信道访问优先级采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。在一实施例中，可以采用RE偏移值、不同序列或一个序列的不同序列偏移值来表示信道访问优先级。可以理解为，在RE偏移值不同时，其对应的信道访问优先级是不同的；在序列不同时，其对应的信道访问优先级是不同的；在同一个序列采用的序列偏移值不同时，其对应的信道访问优先级是不同的。
在一实施例中，信道竞争区域的确定方式包括下述之一：资源池内周期性地配置信道竞争区域；载波内基于物理时隙，周期性地配置信道竞争区域；基站指示一个COT内配置一个信道竞争区域；采用预设规则在一个COT内配置一个信道竞争区域。在一实施例中，在采用资源池配置指示信道竞争区域时，可以在资源池内周期性地配置信道竞争区域，或以比特位图(bitmap)方式指示特定的资源位置上信道竞争区域；在采用载波配置指示信道竞争区域时，可以在载波内基于物理时隙周期性地配置信道竞争区域；也可以直接通过基站指示一个COT内配置一个信道竞争区域；也可以按照预设规则在固定时长的一个COT内配置一个信道竞争区域。
在一实施例中，一个信道竞争区域内符号数量的确定方式包括下述之一：以信道占用通告信号指示的可用符号数确定；以信道占用通告信号在时隙内的符号位置确定。在一实施例中，以信道占用通告信号指示的可用符号数确定信道竞争区域内的符号数量，即信道占用通告信号所占用符号数是可以确定的，并且，由信道占用通告信号区域和信道竞争区域所组成的前导slot也是可以确定的，可以根据前导slot包含的符号数和信道占用通告信号所占用符号数确定信道竞争区域内的符号数量；在一实施例中，以信道占用通告信号在时隙内的符号位置确定信道竞争区域内符号数量，即以信道占用通告信号在时隙内的符号位置和前导slot的结束位置可以确定信道竞争区域内的符号数量。
在一实施例中，一个信道竞争区域内竞争单元数量的确定方式包括下述之一：以最大COT时长内包含的数据单元的数量确定；由信道竞争区域的周期确定；由信道竞争区域周期内包含的数据单元的数量确定。在一实施例中，在以最大COT时长内包含的数据单元的数量确定信道竞争区域内竞争单元数量时，数据单元与信道竞争单元是一一对应关系，即在确定数据单元数量之后，即可将数据单元的数量作为一个信道竞争区域内竞争单元数量；在由信道竞争区域的周期确定一个信道竞争区域内竞争单元数量时，可以根据一个周期值，一个信道竞争区域内包括的竞争单元数量进行确定；在由信道竞争区域周期内包含的数据单元的数量确定一个信道竞争区域内竞争单元数量时，数据单元与信道竞争单元是一一对应关系，即在确定数据单元的数量之后，即可将数据单元的数量作为一个信道竞争区域内竞争单元数量。
在一实施例中，在第一信道竞争单元集合中选择至少一个信道竞争单元，并在信道竞争信号图样集合中选择一个信道竞争信号图样，按照所述信道竞争信号图样在所述信道竞争单元上发送信道竞争信号；根据已选择的数据单元或媒体访问控制(Media Access Control，MAC)指示的数据单元，选择数据单元对应的信道竞争单元发送信道竞争信号。其中，第一信道竞争单元集合指的是数据发送与接收时频资源区域中专用于发送信道占用通告信号的第一类型通信节点所使用的信道竞争单元集合。在一实施例中，第一类型通信节点可以直接采用第一信道竞争单元集合中的至少一个信道竞争单元，并直接选择信道竞争信号图样集合中的一个信道竞争信号图样，以按照从信道竞争信号图样集合中选择的信道竞争信号图样在信道竞争单元上发送信道竞争信号。其中，第一信道竞争单元集合指的是信道竞争区域中前M个信道竞争单元组成的集合。其中，M为大于1的正整数。在一实施例中，根据已选择的数据单元或MAC指示的数据单元，选择数据单元对应的信道竞争单元，指的是第一类型通信节点先在数据发送与接收时频资源区域中选择数据单元，然后根据数据单元和信道竞争单元之间的映射关系，在信道竞争区域选择对应的信道竞争单元发送信道竞争信号。
在一实施例中，信道竞争区域和信道占用通告信号区域共同占用至少一个SL时隙。在一实施例中，信道占用通告信号区域占用两个符号或符号片段，则信道竞争区域可以和信道占用通告信号区域共同占用一个或多个SL时隙。
在一实施例中，信道占用通告信号区域与信道竞争区域之间配置一个保护符号；其中，保护符号用于接收和发送之间进行转换。在一实施例中，在信道占用通告信号区域与信道竞争区域之间配置一个保护符号，以便于第一类型通信节点或第二类型通信节点在发送和接收之间的转换。
在一实施例中，信道竞争信号图样集合的确定方式包括：由预先配置的信道竞争信号图样表指示。在一实施例中，信道竞争信号图样集合指的是从信道竞争信号图样表中随机选择一个或多个信道竞争信号图样所组成的集合。
在一实施例中，信道竞争信号图样由以下方式之一确定：在信道竞争信号图样集合中随机选择其中之一；根据优先级，选择优先级对应的信道竞争信号图样集合中的其中之一；使用信道竞争信号图样集合中的第一信道竞争信号的图样；在信道竞争符号内随机选择K个符号作为监听符号，并将除监听符号之外的其它符号作为发送符号。在一实施例中，根据优先级在信道竞争信号图样集合选择信道竞争信号图样，指的是对每个优先级配置一组信道竞争信号图样(即信道竞争信号图样集合)，则第一类型通信节点可以根据自身的业务优先级选择该业务优先级对应的信道竞争信号图样集合选择一个信道竞争信号图样。其中，第一信道竞争信号图样，指的是信道竞争信号图样集合中的第一个信道竞争信号图样，也可以指的是第一类型通信节点特定的信道竞争信号图样。
在一实施例中，信道占用通告信号的起始符号位置在时隙内允许的最大值的确定方式，包括下述之一：由配置信息进行指示；预配置值。在一实施例中，信道占用通告信号的起始符号位置在时隙内允许的最大值指的是信道占用通告信号的起始符号的最大值。在一实施例中，可以直接由配置信息指示道占用通告信号的起始符号位置在时隙内允许的最大值，也可以直接预配置信道占用通告信号的起始符号位置在时隙内允许的最大值。
在一实施例中，图3是本申请实施例提供的另一种信道共享方法的流程图。本实施例可以由信道共享设备执行。其中，信道共享设备可以为第二类型通信节点。如图3所示，本实施例包括S310-S320。
S310、在接收第一类型通信节点发送的信道占用通告信号的情况下，在一个COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号。
在一实施例中，在第一类型通信节点在发送前监听信道，并且监听成功的情况下，第一类型通信节点在信道占用通告资源上向第二类型通信节点发送信道占用通告信号，以使第二类型通信节点对该COT内信道竞争区域内的信道资源进行竞争。在第二类型通信节点接收到信道占用通告信号的情况下，在一个COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号。其中，信道竞争信号用于在信道竞争区域上竞争信道资源。在一实施例中，信道竞争信号包括：发送符号和监听符号。其中，发送符号用于发送信道竞争信号；监听符号用于监听第二类型通信节点是否使用该信道资源。在一实施例中，第一类型通信节点在发送符号上发送所选择信道资源对应的信道竞争信号，以及在监听符号上监听是否存在资源冲突。
S320、在信道竞争区域中成功竞争信道资源的情况下，在信道竞争单元所对应数据单元或数据单元集合的数据发送与接收时频资源上发送控制消息和/或数据。
其中，所述数据单元集合中的数据单元在数据发送与接收时频资源区域中，或所述数据单元在数据发送与接收时频资源区域中。在一实施例中，第二类型通信节点在所选择的信道资源上未发现资源冲突，则认为第二类型通信节点在信道竞争区域中成功竞争信道资源。第二类型通信节点在信道竞争区域中成功竞争信道资源的情况下，按照信道竞争单元对应的数据单元或数据单元集合对应的时频资源上发送控制消息和/或数据。其中，数据单元集合指的是包括至少两个数据单元的集合。在一实施例中，在控制消息和/或数据的数据量比较大的情况下，采用至少两个信道竞争单元中竞争信道资源，则将所有信道竞争单元所对应的每个数据单元的时频资源上发送控制消息和/或数据。在一实施例中，信道竞争单元与数据单元之间是一一对应关系，即每个信道竞争单元对应一个数据单元。可以理解为，在多个信道竞争单元上发送信道竞争信号，并且在多个信道竞争单元上成功竞争信道资源的情况下，在多个信道竞争单元对应的数据单元集合中每个数据单元的时频资源上发送控制消息和/或数据；在一个信道竞争单元上发送信道竞争信号，并且在一个信道竞争单元上成功竞争信道资源的情况下，在该信道竞争单元对应的数据单元的时频资源上发送控制消息和/或数据。在一实施例中，在第二类型通信节点在发送符号上发送所选择信道资源对应的信道竞争信号，在监听符号上监听是否存在第一类型通信节点或其它第二类型通信节点占用该信道资源，即是否存在资源冲突，若存在资源冲突，则退出竞争，从而避免了多个通信节点之间的资源选择冲突。
在一实施例中，在信道竞争区域的信道竞争单元上发送信道竞争信号包括：根据已选择的数据单元或MAC指示的数据单元，选择数据单元对应的信道竞争单元发送信道竞争信号。在一实施例中，第二类型通信节点先在数据发送与接收时频资源区域中选择数据单元，然后根据数据单元和信道竞争单元之间的映射关系，在信道竞争区域选择对应的信道竞争单元发送信道竞争信号。
在一实施例中，在一个COT内，包括下述区域：信道占用通告信号区域；信道竞争区域；数据发送与接收时频资源区域。
在一实施例中，数据单元或数据单元集合包括下述之一：数据单元为数据发送与接收时频资源区域中的第一数据单元，或数据单元集合为数据发送与接收时频资源区域中的第一数据单元集合；数据单元为信道竞争区域中竞争得到的信道竞争单元对应的数据单元，或数据单元集合为信道竞争区域中竞争得到的信道竞争单元对应的数据单元集合。
在一实施例中，信道竞争区域包括：至少两个信道竞争单元；每个信道竞争单元在时域上占用至少一个符号或符号片段，在频域上由一个逻辑RB组构成；其中，每个信道竞争区域中的一个信道竞争单元与数据发送与接收时频资源区域的一个数据单元一一对应；其中，逻辑RB组包括至少一个物理连续的RB，或至少一个物理上不连续的RB；
数据发送与接收时频资源区域包括：至少两个用于第一类型通信节点或第二类型通信节点传输的数据单元。
在一实施例中，信道占用通告信号包括下述至少之一：当前信道监听LBT成功的指示信息；COT信息；COT资源所属资源池的指示信息；信道访问优先级；信道竞争区域的符号数。
在一实施例中，信道占用通告信号资源的配置方式包括下述之一：资源池配置；每个带宽部分(BandWidth Part，BWP)或载波配置；在COT最开始位置配置。
在一实施例中，信道占用通告信号的形式包括：至少两个符号的序列；其中，符号包括下述之一：符号片段；特定子载波间隔(SubCarrier Spacing，SCS)确定的符号。
在一实施例中，COT信息采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。
在一实施例中，信道访问优先级采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。
在一实施例中，信道竞争区域的确定方式包括下述之一：资源池内周期性地配置信道竞争区域；载波内基于物理时隙，周期性地配置信道竞争区域；基站指示一个COT内配置一个信道竞争区域；采用预设规则一个COT内配置一个信道竞争区域。
在一实施例中，一个信道竞争区域内符号数量的确定方式包括下述之一：以信道占用通告信号指示 的可用符号数确定；以信道占用通告信号在时隙内的符号位置确定。
在一实施例中，一个信道竞争区域内竞争单元数量的确定方式包括下述之一：以最大COT时长内包含的数据单元的数量确定；由信道竞争区域的周期确定；由信道竞争区域周期内包含的数据单元的数量确定。
在一实施例中，信道竞争信号图样集合的确定方式包括：由预先配置的信道竞争信号图样表指示。
在一实施例中，信道竞争信号图样由以下方式之一确定：在信道竞争信号图样集合中随机选择其中之一；根据优先级，选择优先级对应的信道竞争信号图样集合中的其中之一；使用信道竞争信号图样集合中的第一信道竞争信号图样。
在一实施例中，信道占用通告信号的起始符号位置在时隙内允许的最大值的确定方式，包括下述之一：由配置信息进行指示；预配置值。
在一实施例中，第二类型通信节点与第一类型通信节点之间的关系，包括下述之一：第二类型通信节点的竞争信号接收能量大于能量门限值，第二类型通信节点的当前优先级大于或等于信道占用通告信号指示的优先级；其中，第二类型通信节点为第一类型通信节点的目标接收节点。
在此需要说明的是，对第二类型通信节点中的多个参数，多个参数的配置过程，以及多个参数之间的关系的解释，见上述第一类型通信节点的描述，在此不再赘述。
在一实施例中，在共享频谱上，发送前进行信道监听的UE，在监听结果为当前信道处于空闲状态的情况下，至少发送信道占用通告信号(announce signal)。其中，信道占用通告信号的时频资源位置和序列选择，可以基于信道访问优先级(priority)，或根据资源池、BWP、载波、小区的配置，或者预配置参数确定。
其中，信道占用通告信号指示了以下至少之一：当前信道监听LBT成功的指示信息；COT信息；COT资源所属资源池的指示信息；信道访问优先级；信道竞争区域的符号数。
在一示例中，信道占用通告信号指示了信道监听LBT成功的示例：在共享频谱上，发送前进行信道监听的UE，在监听结果为当前信道处于空闲状态的情况下，发送包括信道占用通告信号在内的信号。
其中，信道占用通告信号指示了当前信道监听LBT成功，或者，指示其他UE(即上述实施例中的第二类型通信节点)可以共享当前COT资源。信道占用通告信号映射在配置的或预配置的资源元素((Resource Element，RE)。
在一实施例中，每个资源池配置专有的信道占用通告信号序列或频域RE位置。在第一类型通信节点的监听结果为当前信道空闲的情况下，在所选择资源池对应的配置的信道占用通告信号资源上发送信道占用通告信号，信道占用通告信号使用资源池对应的序列或固定序列。
在一实施例中，每个BWP或载波配置专有的信道占用通告信号序列或频域RE位置。在第一类型通信节点的监听结果为当前信道空闲的情况下，在所选择BWP或载波对应的配置的信道占用通告信号资源上发送信道占用通告信号，信道占用通告信号使用BWP或载波对应的序列或固定序列。
在一实施例中，其他监听信道的UE(即第二类型通信节点)，如果成功监听到信道占用通告信号，表明当前信道LBT成功，可以共享当前COT资源，或当前COT内对应资源池的资源。
在一示例中，信道占用通告信号指示了COT信息的示例：在非授权载波上，发送前进行信道监听的UE(即上述实施例中的第一类型通信节点)，根据自身的信道访问优先级进行LBT。在监听结果为当前信道空闲的情况下，基于COT信息发送包括信道占用通告信号在内的信号。
其中，信道占用通告信号指示了COT信息，比如，定义了信道占用通告信号在频域的12个RE偏移起始位置0到11，分别对应12个预定义的COT时长，如1ms，2ms，……12ms；或，信道占用通告信号指示了COT时长内的时隙(slot)数量，比如，定义了信道占用通告信号在频域的12个RE偏移起始位置0到11，分别对应4slots，6slots，8slots，……26slots。
在一实施例中，其他监听信道的UE(即上述实施例中的第二类型通信节点)，如果成功监听到信道占用通告信号，从信道占用通告信号中获得COT信息，则判断自身可以按照一定的规则使用COT信息内对应资源池的资源。
在一示例中，信道占用通告信号指示了信道访问优先级的示例：在共享频谱上，发送前进行信道监听的UE(即上述实施例中的第一类型通信节点)，在监听结果为当前信道空闲的情况下，基于信道访问 优先级，发送包括信道占用通告信号在内的信号。
其中，信道占用通告信号指示了信道访问优先级。比如，定义了信道占用通告信号在频域的4个RE偏移起始位置0，3，6，9，分别对应4个信道访问优先级，比如，priority 1，priority 2，priority 3，priority 4。又如，定义了信道占用通告信号在频域的4个RB偏移起始位置0，1，2，3，分别对应4个信道访问优先级，比如，priority 1，priority 2，priority 3，priority 4。
在一实施例中，其他监听信道的UE，如果成功监听到信道占用通告信号，获得信道访问优先级，如果自身的业务或数据包所对应的优先级高于或等于信道占用通告信号所指示的优先级，或优先级指示值小于或等于信道占用通告信号所指示的优先级指示值，则判断自身可以按照一定的规则共享当前COT资源，或当前COT内对应资源池的资源。
在一示例中，信道占用通告信号指示了COT信息和信道访问优先级的示例：在共享频谱上，发送前进行信道监听的UE，在监听结果为当前信道空闲的情况下，基于信道访问优先级，发送包括信道占用通告信号在内的信号。
其中，信道占用通告信号指示了信道访问优先级和COT信息。比如，定义了信道占用通告信号的四个序列，分别对应4个信道访问优先级，如priority 1，priority 2，priority 3，priority 4。此外，定义了信道占用通告信号在频域的12个RE偏移起始位置0到11，分别对应12个预定义的COT时长，如1ms，2ms，……12ms。
在一实施例中，其他监听信道的UE，如果成功监听到信道占用通告信号，获得信道访问优先级和COT信息。如果自身的业务或数据包所对应的优先级高于或等于信道占用通告信号所指示的优先级，或优先级指示值小于或等于信道占用通告信号所指示的优先级指示值，则判断自身可以按照一定的规则共享当前COT资源，或当前COT内对应资源池的资源。如果成功监听到一个优先级存在多个信道占用通告信号，则选择最长COT时长作为当前COT时长。如果成功监听到一个COT时长有多个信道占用通告信号，则以最高优先级对应的信道占用通告信号为判断共享COT的依据。
在一示例中，信道占用通告信号指示了COT信息和信道访问优先级的示例：可以使用前述示例的任意组合，如序列(序列的偏移量shift)，RE位置等携带指示信息。
在本示例中，通过RE的位置指示了COT信息和信道访问优先级。
在共享频谱上，发送前进行信道监听的UE，在监听结果为当前信道空闲的情况下，基于信道访问优先级，发送包括信道占用通告信号在内的信号。
其中，信道占用通告信号指示了信道访问优先级和COT信息。如，定义了信道占用通告信号的四个RE组，每组分别对应4个信道访问优先级priority，如priority 1，priority 2，priority 3，priority 4。此外，在每个RE组中，定义了信道占用通告信号在频域的6个RE偏移起始位置0到5，分别对应6个预定义的COT时长，如1ms，2ms，4ms，……12ms。
在一实施例中，对信道竞争区域的确定过程进行说明。在共享频谱上，每一(per)BWP/载波配置，或者，per资源池配置信道竞争区域的资源参数。在一实施例中，采用下述三种配置方法对信道竞争区域的资源参数进行配置。
配置方法1：图4是本申请实施例提供的一种信道占用时长中多个区域的配置示意图。其中，一个信道占用时长内可以包括：信道占用通告信号区域；信道竞争区域；数据发送与接收时频资源区域。如图4所示，在当前载波的SideLink可以使用的slot序列中，每N个slot配置一个信道竞争区域和一个信道占用通告信号区域；或者，以N个slot为周期，配置一个信道竞争区域和一个信道占用通告信号区域。在一实施例中，一个信道竞争区域和一个信道占用通告信号区域共同占用一个或多个SL时隙。
在一实施例中，通过无线资源控制(Radio Resource Control，RRC)消息或预配置消息，配置了当前BWP，一个资源池所对应的信道占用通告信号区域和信道竞争区域，每5个slots配置一个信道竞争区域和一个信道占用通告信号区域。图5是本申请实施例提供的一种信道竞争区域和信道占用通告信号区域共同占用的一个SL时隙的配置示意图，如图5所示，一个信道竞争区域和一个信道占用通告信号区域共同使用一个SL时隙(以下称为leading slot)，其中，信道占用通告信号区域占用2个符号或符号chip，信道竞争区域使用slot内除去保护符号(guard symbol)之外的所有符号。其中，信道占用通告信号区域与信道竞争区域之间有一个guard symbol，并且在该时隙末尾有一个guard symbol。其中，guard symbol 时长小于16us；信道竞争信号由10个符号组成，包括信道竞争信号的发送符号和用于监听的gap符号(即监听符号)。
在一实施例中，可以由预先配置的信道竞争信号图样表指示信道竞争信号图样集合。表1是本申请实施例提供的一种信道竞争信号图样表。如表1所示，可以通过信道竞争信号图样表指示信道竞争信号图样集合。每个信道竞争信号图样集合可以包括一个或多个信道竞争信号图样，并且每个信道竞争信号图样中包括10个符号。即对于信道竞争区域的特定符号数配置下，信道竞争信号图样可以由以下方式之一确定：
方式一：在信道竞争信号图样集合中随机选择其中之一。
表1信道竞争信号图样表
Figure PCTCN2022106040-appb-000001
如表1所示，以信道竞争区域为10个符号定义的信道竞争信号图样。示例中包括8个信道竞争信号图样(pattern)，每个信道竞争信号图样包括2个gap符号(g)，其他符号为发送符号(s)。其中，gap符号用于监听是否有其他UE使用该资源，如果发现有资源冲突，则退出资源竞争。
方式二：信道竞争信号图样可以由UE自主确定。
确定信道竞争信号中实际可用的符号数，确定gap符号的数量K(由配置信令指示或预配置指定)，UE随机选择K个符号作为gap符号，并将除gap符号之外的其它符号为竞争信号实际发送的符号(即发送符号)。
方式三：根据优先级，选择优先级对应的信道竞争信号图样集合中的其中之一。
基站配置或预配置给UE，优先级对应一个或一组信道竞争信号图样，即优先级对应的信道竞争信号图样集合。发送信道竞争信号的UE，在优先级对应的信道竞争信号图样集合中选择其中一个信道竞争信号图样，作为实际发送竞争信号的图样。
方式四：使用信道竞争信号图样集合中的第一信道竞争信号图样。
其中，第一信道竞争信号图样指的是信道竞争信号图样表中的第一个信道竞争信号图样，即图样符号为1所对应的信道竞争信号图样，其中，符号5和符号10为gap符号，其它的符号为发送符号。
配置方法2：在每个数据传输slot(即数据发送与接收时频资源区域所占用的第一个slot)之前，可以为信道竞争区域所占用资源。图6是本申请实施例提供的一种两个信道占用时长之间多个区域的配置示意图。如图6所示，LBT成功时刻所在的slot为前导时隙(也可以称为leading slot)。其中，leading slot指的是信道占用通告信号区域和信道竞争区域所共同占用的时隙。在leading slot之内，信道占用通告信号区域之后的区域为信道竞争区域。如图6所示，在每两个信道占用时长之间可以存在一定间隔的，即两个信道占用时长可以是非连续的。
在共享频谱上，UE在发送前进行信道监听，在监听结果为当前信道空闲的情况下，开始发送信道占用通告信号。发送信道占用通告信号所在的时隙为heading slot，并且，信道竞争区域为heading slot中发送信道占用通告信号之后至heading slot结束之间的区域。图7是本申请实施例提供的另一种信道竞争区域和信道占用通告信号区域共同占用的一个SL时隙的配置示意图，如图7所示，其中，信道占用通告信号区域占用2个符号或符号chip，信道竞争区域实际使用heading slot内信道占用通告信号之后，除去guard symbol之外的其他符号。其中，信道占用通告信号区域与信道竞争区域之间有一个guard symbol， 以及在slot末尾有一个guard symbol，guard symbol时长小于16us。在一实施例中，信道竞争区域的符号数由信道占用通告信号的起始符号位置决定，其中，信道竞争区域包括发送竞争信号的符号，以及用于监听的gap符号。在一实施例中，信道占用通告信号的起始符号位置在时隙内允许的最大值可以由配置信息进行指示，或为预配置值。
配置方法3：基于帧的设备(Frame-based Equipment，FBE)的信道接入模式下，设置特定的COT时长。在每个COT内的开始位置，配置信道竞争区域所占用资源。图8是本申请实施例提供的另一种信道占用时长中多个区域的配置示意图，如图8所示，LBT成功时刻之后的COT开始位置为信道竞争区域。
示例性地，COT配置的周期配置为P(如20ms)，在一个周期内，指定一个COT起始位置为i*T x，其时长为T y＝0.95T xms，
Figure PCTCN2022106040-appb-000002
一个COT时长内包括了一个信道竞争区域和一个数据发送与接收时频资源区域。其中，T x为一个预配置值，示例性地，可以在一个1至10ms范围内进行取值。
在一实施例中，对信道竞争区域中的信道竞争单元和数据发送与接收时频资源区域中的数据单元的映射关系进行说明。在一实施例中，信道竞争区域可以等分为多个信道竞争单元，其中，信道竞争单元的频域粒度由配置信令指示或预配置指定。由频域的最低位开始，信道竞争单元依次编号为C1，C2，……Cn；或者，先频域再码域，依次编号为C1，C2，……Cn。
在一实施例中，数据发送与接收时频资源区域按照时域以slot，mini slot，aggregation slots为粒度，频域以subchannel，RB set为粒度的时频资源单元，称为数据单元。其中，频域粒度可以为连续RB组成，也可以由频域离散的RE集合组成的逻辑RB组。在一实施例中，数据单元按照先频域后时域的顺序依次编号为R1，R2，……Rm，时域的开始slot为heading slot之后紧邻的slot。
在一实施例中，信道竞争单元与数据单元存在一一对应的映射关系。即N个信道竞争单元与前N个数据单元一一对应。
在一实施例中，对信道竞争单元的选择过程，以及在选择的信道竞争单元上发送信道竞争信号的过程进行说明。
示例一：自主选择信道竞争单元。
在一实施例中，发送了信道占用通告信号的UE，在COT时间范围内，随机选择信道竞争单元，或者，选择第一信道竞争单元，或者，在第一信道竞争单元集合内选择一个或多个信道竞争单元。在一实施例中，信道竞争信号依据信道竞争信号图样进行发送。其中，信道竞争信号图样可以为随机选择的信道竞争信号图样，或者，根据优先级选择的信道竞争信号图样，或者选择第一信道竞争信号图样。在确定信道竞争信号图样之后，在信道竞争区域按照信道竞争信号图样发送信道竞争信号，并在gap符号上监听其他UE发送的信道竞争信号，如果检测到信道竞争信号，并且其它UE的竞争信号接收能量大于能量门限值(该能量门限值由配置信令指示或预配置指定)，则退出信道竞争信号的发送，并放弃在信道竞争单元对应数据单元上发送控制消息和/或数据。
其中，第一信道竞争单元，是指数据发送与接收时频资源区域内第一个slot上数据单元所对应的信道竞争单元集合；第一竞争单元集合，是指数据发送与接收时频资源区域专用于发送通知信号UE所使用的竞争单元集合。
根据优先级选择信道竞争信号图样，是指对每个优先级配置了对应的一组信道竞争信号图样，UE可以根据优先级，在优先级对应的一组信道竞争信号图样中选择其中一个信道竞争信号图样作为其信道竞争信号图样。
选择第一信道竞争信号图样，比如，发送了信道占用通告信号的UE，直接选择特定的第一信道竞争信号图样。
示例二：UE根据MAC层指示的资源位置选择信道竞争单元。
在一实施例中，发送了信道占用通告信号的UE，在COT时间范围内，在根据grant的数据单元位置确定的信道竞争单元上，或在MAC层指示的信道竞争单元上发送信道竞争信号。其中，信道竞争信号依据信道竞争信号图样进行发送。其中，信道竞争信号图样可以为随机选择的信道竞争信号图样，或根据优先级选择的信道竞争信号图样，根据信道竞争信号图样在信道竞争区域按照信道竞争信号图样发送信道竞争信号。并且，在gap符号上监听其他UE发送的信道竞争信号，如果检测到信道竞争信号，并且竞 争信号接收能量大于能量门限值(该能量门限值由配置信令指示或预配置指定)，则退出信道竞争信号的发送，并且放弃在信道竞争信号对应数据单元上发送控制消息和/或数据。在一实施例中，根据优先级选择信道竞争信号图样，是指对每个优先级配置了对应的一组信道竞争信号图样，UE根据优先级，在优先级对应的一组信道竞争信号图样中选择其中一个信道竞争信号图样作为其信道竞争信号图样。
示例3：成功检测到信道占用通告信号的UE，，若竞争信号接收能量大于能量门限值(该门限由配置信令指示或预配置指定)，则在随机选择的信道竞争单元上，或者，在第一信道竞争单元上，或者，在第一信道竞争单元组内选择一个或多个信道竞争单元上，或者，在根据grant的数据单元位置确定的信道竞争单元上，或者，在MAC层指示的信道竞争单元上发送信道竞争信号。如果获得了COT时长，则在COT时间内，在随机选择的信道竞争单元上，或在根据grant的数据单元位置确定的信道竞争单元上，或在MAC层指示的信道竞争单元上发送信道竞争信号。例如，如果信道占用通告信号指示了优先级，则与自身(成功检测到信道占用通告信号的UE)的优先级进行比较，在自身(成功检测到信道占用通告信号的UE)的优先级大于或等于信道占用通告信号指示的优先级时，UE在前述的信道竞争单元上发送信道竞争信号。根据随机选择的信道竞争信号图样，或根据优先级选择的信道竞争信号图样，在信道竞争区域按照信道竞争信号图样发送信道竞争信号，并在gap符号上监听其他UE发送的信道竞争信号，如果检测到信道竞争信号，并且竞争信号接收能量大于能量门限值(该能量门限值由配置信令指示或预配置指定)，则退出信道竞争信号的发送，并放弃在信道竞争信号对应数据单元上的发送控制消息和/或数据。
在上述示例1，示例2和示例3中，UE选择的信道竞争单元，可以为连续的多个信道竞争单元(对应多个连续subchannel的数据单元)，或者不连续的多个信道竞争单元。(对应多个slot上的多个数据单元。)
示例4：针对在信道竞争区域内未竞争到时频资源的UE，在信道竞争区域结束时，将整个信道竞争区域内检测为空闲的信道竞争单元，作为待选择资源集合，可以在此待选择资源集合内，随机选择资源，或以一个概率随机选择资源，其中概率值由配置消息指示，或预配置确定，或对应于优先级的一个概率值。
在一实施例中，图9是本申请实施例提供的一种信道共享装置的结构框图。本实施例应用于信道共享设备。其中，信道共享设备为第一类型通信节点。如图9所示，本实施例包括：第一发送器910和第二发送器920。
其中，第一发送器910，配置为在监听到当前信道处于空闲状态的情况下，在一个信道占用时长COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号；
第二发送器920，配置为在信道竞争区域中成功竞争信道资源的情况下，在信道竞争单元所对应数据单元或数据单元集合的时频资源上发送控制消息和/或数据；其中，数据单元集合中的数据单元或数据单元在数据发送与接收时频资源区域中。
在一实施例中，在一个COT内，包括下述区域：信道占用通告信号区域；信道竞争区域；数据发送与接收时频资源区域。
在一实施例中，在一个COT的开始位置，在信道占用通告信号资源上向第二类型通信节点发送信道占用通告信号。
在一实施例中，数据单元或数据单元集合，包括下述之一：
数据单元为数据发送与接收时频资源区域中的第一数据单元，或数据单元集合为所述数据发送与接收时频资源区域中的第一数据单元集合；
数据单元为信道竞争区域中竞争得到的信道竞争单元对应的数据单元，或数据单元集合为信道竞争区域中竞争得到的信道竞争单元对应的数据单元集合。
在一实施例中，信道竞争区域包括：至少两个信道竞争单元；每个信道竞争单元在时域上占用至少一个符号或符号片段，在频域上由一个逻辑资源块RB组构成；其中，每个信道竞争区域中的一个信道竞争单元与数据发送与接收时频资源区域的一个数据单元一一对应；其中，逻辑RB组包括至少一个物理连续的RB，或至少一个物理上不连续的RB；
数据发送与接收时频资源区域包括：至少两个用于第一类型通信节点或第二类型通信节点传输的数据单元。
在一实施例中，信道占用通告信号包括下述至少之一：当前信道监听LBT成功的指示信息；COT信息；COT资源所属资源池的指示信息；信道访问优先级；信道竞争区域的符号数。
在一实施例中，信道占用通告信号资源的配置方式包括下述之一：资源池配置；每个带宽部分(BandWidth Part，BWP)或载波配置；在COT最开始位置配置。
在一实施例中，信道占用通告信号的形式包括：至少两个符号的序列；其中，符号包括下述之一：符号片段；特定子载波间隔(SubCarrier Spacing，SCS)确定的符号。
在一实施例中，COT信息采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。
在一实施例中，信道访问优先级采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。
在一实施例中，信道竞争区域的确定方式包括下述之一：
资源池内周期性地配置信道竞争区域；
载波内基于物理时隙，周期性地配置信道竞争区域；
基站指示一个COT内配置一个信道竞争区域；
采用预设规则一个COT内配置一个信道竞争区域。
在一实施例中，一个信道竞争区域内符号数量的确定方式包括下述之一：
以信道占用通告信号指示的可用符号数确定；
以信道占用通告信号在时隙内的符号位置确定。
在一实施例中，一个信道竞争区域内竞争单元数量的确定方式包括下述之一：
以最大COT时长内包含的数据单元的数量确定；
由信道竞争区域的周期确定；
由信道竞争区域周期内包含的数据单元的数量确定。
在一实施例中，在信道竞争区域的信道竞争单元上发送信道竞争信号包括下述之一：
在第一信道竞争单元集合中选择至少一个信道竞争单元，并在信道竞争信号图样集合中选择一个信道竞争信号图样，按照信道竞争信号图样在信道竞争单元上发送信道竞争信号；
根据已选择的数据单元或MAC指示的数据单元，选择数据单元对应的信道竞争单元发送信道竞争信号。
在一实施例中，信道竞争区域和信道占用通告信号区域共同占用至少一个SL时隙。
在一实施例中，信道占用通告信号区域与信道竞争区域之间配置一个保护符号；其中，保护符号用于接收和发送之间进行转换。
在一实施例中，信道竞争信号图样集合的确定方式包括：
由预先配置的信道竞争信号图样表指示。
在一实施例中，信道竞争信号图样由以下方式之一确定：
在信道竞争信号图样集合中随机选择其中之一；
根据优先级，选择优先级对应的信道竞争信号图样集合中的其中之一；
使用信道竞争信号图样集合中的第一信道竞争信号图样；
在信道竞争符号内随机选择K个符号作为监听符号，并将除监听符号之外的其它符号作为发送符号。
在一实施例中，信道占用通告信号的起始符号位置在时隙内允许的最大值的确定方式，包括下述之一：由配置信息进行指示；预配置值。
在一实施例中，第二类型通信节点与第一类型通信节点之间的关系，包括下述之一：第二类型通信节点的竞争信号接收能量大于能量门限值，第二类型通信节点的当前优先级大于或等于信道占用通告信号指示的优先级；其中，第二类型通信节点为第一类型通信节点的目标接收节点。
本实施例提供的信道共享装置设置为实现图1所示实施例的应用于第一类型通信节点的信道共享方法，本实施例提供的信道共享装置实现原理和技术效果类似，此处不再赘述。
在一实施例中，图10是本申请实施例提供的另一种信道共享装置的结构框图。本实施例应用于信道共享设备。其中，信道共享设备为第二类型通信节点。如图10所示，本实施例包括：第三发送器1010 和第四发送器1020。
第三发送器1010，配置为在接收第一类型通信节点发送的信道占用通告信号的情况下，在一个信道占用时长COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号；
第四发送器1020，配置为在信道竞争区域中成功竞争信道资源的情况下，在信道竞争单元所对应数据单元或数据单元集合的时频资源上发送控制消息和/或数据；其中，数据单元集合中的数据单元或数据单元在数据发送与接收时频资源区域中。
在一实施例中，在信道竞争区域的信道竞争单元上发送信道竞争信号包括：根据已选择的数据单元或MAC指示的数据单元，选择数据单元对应的信道竞争单元发送信道竞争信号。
在一实施例中，在一个COT内，包括下述区域：信道占用通告信号区域；信道竞争区域；数据发送与接收时频资源区域。
在一实施例中，数据单元或数据单元集合，包括下述之一：数据单元为数据发送与接收时频资源区域中的第一数据单元，或所述数据单元集合为数据发送与接收时频资源区域中的第一数据单元集合；数据单元为信道竞争区域中竞争得到的信道竞争单元对应的数据单元，或数据单元集合为信道竞争区域中竞争得到的信道竞争单元对应的数据单元集合。
在一实施例中，信道竞争区域包括：至少两个信道竞争单元；每个信道竞争单元在时域上占用至少一个符号或符号片段，在频域上由一个逻辑RB组构成；其中，每个信道竞争区域中的一个信道竞争单元与数据发送与接收时频资源区域的一个数据单元一一对应；其中，逻辑RB组包括至少一个物理连续的RB，或至少一个物理上不连续的RB；
数据发送与接收时频资源区域包括：至少两个用于第一类型通信节点或第二类型通信节点传输的数据单元。
在一实施例中，信道占用通告信号包括下述至少之一：当前信道监听LBT成功的指示信息；COT信息；COT资源所属资源池的指示信息；信道访问优先级；信道竞争区域的符号数。
在一实施例中，信道占用通告信号资源的配置方式包括下述之一：资源池配置；每个带宽部分(BandWidth Part，BWP)或载波配置；在COT最开始位置配置。
在一实施例中，信道占用通告信号的形式包括：至少两个符号的序列；其中，符号包括下述之一：符号片段；特定子载波间隔(SubCarrier Spacing，SCS)确定的符号。
在一实施例中，COT信息采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。
在一实施例中，信道访问优先级采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。
在一实施例中，信道竞争区域的确定方式包括下述之一：资源池内周期性地配置信道竞争区域；载波内基于物理时隙，周期性地配置信道竞争区域；基站指示一个COT内配置一个信道竞争区域；采用预设规则一个COT内配置一个信道竞争区域。
在一实施例中，一个信道竞争区域内符号数量的确定方式包括下述之一：以信道占用通告信号指示的可用符号数确定；以信道占用通告信号在时隙内的符号位置确定。
在一实施例中，一个信道竞争区域内竞争单元数量的确定方式包括下述之一：以最大COT时长内包含的数据单元的数量确定；由信道竞争区域的周期确定；由信道竞争区域周期内包含的数据单元的数量确定。
在一实施例中，信道竞争信号图样集合的确定方式包括：由预先配置的信道竞争信号图样表指示。
在一实施例中，信道竞争信号图样由以下方式之一确定：在信道竞争信号图样集合中随机选择其中之一；根据优先级，选择优先级对应的信道竞争信号图样集合中的其中之一；使用信道竞争信号图样集合中的第一信道竞争信号图样。
在一实施例中，信道占用通告信号的起始符号位置在时隙内允许的最大值的确定方式，包括下述之一：由配置信息进行指示；预配置值。
在一实施例中，第二类型通信节点与第一类型通信节点之间的关系，包括下述之一：第二类型通信节点的竞争信号接收能量大于能量门限值，第二类型通信节点的当前优先级大于或等于信道占用通告信 号指示的优先级；其中，第二类型通信节点为第一类型通信节点的目标接收节点。
本实施例提供的信道共享装置设置为实现图3所示实施例的应用于第二类型通信节点的信道共享方法，本实施例提供的信道共享装置实现原理和技术效果类似，此处不再赘述。
图11是本申请实施例提供的一种信道共享设备的结构示意图。如图11所示，本申请提供的设备，包括：处理器1110、存储器1120和通信模块1130。该设备中处理器1110的数量可以是一个或者多个，图11中以一个处理器1110为例。该设备中存储器1120的数量可以是一个或者多个，图11中以一个存储器1120为例。该设备的处理器1110、存储器1120和通信模块1130可以通过总线或者其他方式连接，图11中以通过总线连接为例。在该实施例中，该设备为可以为第一类型通信节点(比如，LBT成功的UE)。
存储器1120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，如本申请任意实施例的设备对应的程序指令/模块(例如，信道共享装置中的第一发送器910和第二发送器920)。存储器1120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，存储器1120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，存储器1120可包括相对于处理器1110远程设置的存储器，这些远程存储器可以通过网络连接至设备。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。
通信模块1130，配置为在第一类型通信节点和第二类型通信节点之间进行通信交互。
在信道共享设备为第一类型通信节点的情况下，上述提供的设备可设置为执行上述任意实施例提供的应用于第一类型通信节点的信道共享方法，具备相应的功能和效果。
在信道共享设备为第二类型通信节点的情况下，上述提供的设备可设置为执行上述任意实施例提供的应用于第二类型通信节点的信道共享方法，具备相应的功能和效果。
本申请实施例还提供一种包含计算机可执行指令的存储介质，计算机可执行指令在由计算机处理器执行时用于执行一种应用于第一类型通信节点的信道共享方法，该方法包括：在监听到当前信道处于空闲状态的情况下，在一个信道占用时长COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号；在信道竞争区域中成功竞争信道资源的情况下，在信道竞争单元所对应数据单元或数据单元集合的时频资源上发送控制消息和/或数据。
本申请实施例还提供一种包含计算机可执行指令的存储介质，计算机可执行指令在由计算机处理器执行时用于执行一种应用于第二类型通信节点的信道共享方法，该方法包括：在接收第一类型通信节点发送的信道占用通告信号的情况下，在一个信道占用时长COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号；在信道竞争区域中成功竞争信道资源的情况下，在信道竞争单元所对应数据单元的数据发送与接收时频资源上发送控制消息和/或数据。
本领域内的技术人员应明白，术语用户设备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，例如但不限于只读存储器(Read-Only Memory，ROM)、随机访问存储器(Random Access Memory，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 Processing，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、可编程逻辑器件(Field-Programmable Gate Array，FGPA)以及基于多核处理器架构的处理器。

Claims (39)

  1. 一种信道资源共享方法，应用于第一类型通信节点，包括：
    响应于监听到当前信道处于空闲状态，在一个信道占用时长COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号；
    响应于确定在所述信道竞争区域中成功竞争信道资源，在所述信道竞争单元所对应数据单元或数据单元集合的时频资源上发送以下至少之一：控制消息，数据；其中，所述数据单元集合中的数据单元在数据发送与接收时频资源区域中，或所述数据单元在数据发送与接收时频资源区域中。
  2. 根据权利要求1所述的方法，其中，在一个COT内，包括下述区域：信道占用通告信号区域；信道竞争区域；数据发送与接收时频资源区域。
  3. 根据权利要求1所述的方法，其中，在一个COT的开始位置，在信道占用通告信号资源上向第二类型通信节点发送信道占用通告信号。
  4. 根据权利要求1所述的方法，其中，所述数据单元或所述数据单元集合包括下述之一：
    所述数据单元为所述数据发送与接收时频资源区域中的第一数据单元，或所述数据单元集合为所述数据发送与接收时频资源区域中的第一数据单元集合；
    所述数据单元为所述信道竞争区域中竞争得到的信道竞争单元对应的数据单元，或所述数据单元集合为所述信道竞争区域中竞争得到的信道竞争单元对应的数据单元集合。
  5. 根据权利要求1所述的方法，其中，所述信道竞争区域包括：至少两个信道竞争单元；每个所述信道竞争单元在时域上占用至少一个符号或符号片段，在频域上由一个逻辑资源块RB组构成；其中，每个所述信道竞争区域中的一个信道竞争单元与所述数据发送与接收时频资源区域的一个数据单元一一对应；其中，所述逻辑RB组包括至少一个物理连续的RB，或至少一个物理上不连续的RB；
    所述数据发送与接收时频资源区域包括：至少两个用于所述第一类型通信节点或第二类型通信节点传输的数据单元。
  6. 根据权利要求3所述的方法，其中，所述信道占用通告信号包括下述至少之一：当前信道监听LBT成功的指示信息；COT信息；COT资源所属资源池的指示信息；信道访问优先级；所述信道竞争区域的符号数。
  7. 根据权利要求3所述的方法，其中，所述信道占用通告信号资源的配置方式包括下述之一：资源池配置；每个带宽部分BWP或载波配置；在COT最开始位置配置。
  8. 根据权利要求3所述的方法，其中，所述信道占用通告信号的形式包括：至少两个符号的序列；
    其中，所述符号包括下述之一：符号片段；特定子载波间隔SCS确定的符号。
  9. 根据权利要求6所述的方法，其中，所述COT信息采用下述之一方式表示：资源元素RE偏移值；不同序列；一个序列的不同序列偏移值。
  10. 根据权利要求6所述的方法，其中，所述信道访问优先级采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。
  11. 根据权利要求1所述的方法，其中，所述信道竞争区域的确定方式包括下述之一：
    资源池内周期性地配置信道竞争区域；
    载波内基于物理时隙，周期性地配置信道竞争区域；
    基站指示一个COT内配置一个信道竞争区域；
    采用预设规则在一个COT内配置一个信道竞争区域。
  12. 根据权利要求1所述的方法，其中，一个所述信道竞争区域内符号数量的确定方式包括下述之一：
    以所述信道占用通告信号指示的可用符号数确定；
    以所述信道占用通告信号在时隙内的符号位置确定。
  13. 根据权利要求1所述的方法，其中，一个所述信道竞争区域内竞争单元数量的确定方式包括下述之一：
    以最大COT时长内包含的数据单元的数量确定；
    由所述信道竞争区域的周期确定；
    由所述信道竞争区域周期内包含的数据单元的数量确定。
  14. 根据权利要求1所述的方法，其中，所述在信道竞争区域的信道竞争单元上发送信道竞争信号 包括下述之一：
    在第一信道竞争单元集合中选择至少一个信道竞争单元，并在信道竞争信号图样集合中选择一个信道竞争信号图样，按照所述信道竞争信号图样在所述信道竞争单元上发送信道竞争信号；
    根据已选择的数据单元或媒体访问控制MAC指示的数据单元，选择数据单元对应的信道竞争单元发送信道竞争信号。
  15. 根据权利要求2所述的方法，其中，所述信道竞争区域和所述信道占用通告信号区域共同占用至少一个SL时隙。
  16. 根据权利要求15所述的方法，其中，所述信道占用通告信号区域与所述信道竞争区域之间配置一个保护符号；其中，所述保护符号用于接收和发送之间进行转换。
  17. 根据权利要求1所述的方法，其中，信道竞争信号图样集合包括至少一个所述信道竞争信号图样，所述信道竞争信号图样集合的确定方式包括：
    由预先配置的信道竞争信号图样表指示。
  18. 根据权利要求17所述的方法，其中，所述信道竞争信号图样由以下方式之一确定：
    在所述信道竞争信号图样集合中随机选择其中之一；
    根据优先级，选择优先级对应的信道竞争信号图样集合中的其中之一；
    使用信道竞争信号图样集合中的第一信道竞争信号图样；
    在信道竞争符号内随机选择K个符号作为监听符号，并将所述信道竞争符号内除所述监听符号之外的符号作为发送符号。
  19. 根据权利要求3所述的方法，其中，所述信道占用通告信号的起始符号位置在时隙内允许的最大值的确定方式，包括下述之一：由配置信息进行指示；预配置值。
  20. 根据权利要求3所述的方法，其中，所述第二类型通信节点与所述第一类型通信节点之间的关系，包括下述之一：
    所述第二类型通信节点的竞争信号接收能量大于能量门限值，所述第二类型通信节点的当前优先级大于或等于所述信道占用通告信号指示的优先级；
    其中，所述第二类型通信节点为所述第一类型通信节点的目标接收节点。
  21. 一种信道共享方法，应用于第二类型通信节点，包括：
    响应于确定接收第一类型通信节点发送的信道占用通告信号，在一个信道占用时长COT内，按照预先选择的信道竞争信号图样在信道竞争区域的信道竞争单元上发送信道竞争信号；
    响应于确定在所述信道竞争区域中成功竞争信道资源，在所述信道竞争单元所对应数据单元或数据单元集合的时频资源上发送以下至少之一：控制消息，数据；其中，所述数据单元集合中的数据单元在数据发送与接收时频资源区域中，或所述数据单元在数据发送与接收时频资源区域中。
  22. 根据权利要求21所述的方法，其中，在一个COT内，包括下述区域：信道占用通告信号区域；信道竞争区域；数据发送与接收时频资源区域。
  23. 根据权利要求21所述的方法，其中，所述数据单元或所述数据单元集合包括下述之一：
    所述数据单元为所述数据发送与接收时频资源区域中的第一数据单元，或所述数据单元集合为所述数据发送与接收时频资源区域中的第一数据单元集合；
    所述数据单元为所述信道竞争区域中竞争得到的信道竞争单元对应的数据单元，或所述数据单元集合为所述信道竞争区域中竞争得到的信道竞争单元对应的数据单元集合。
  24. 根据权利要求21所述的方法，其中，所述信道竞争区域包括：至少两个信道竞争单元；每个所述信道竞争单元在时域上占用至少一个符号或符号片段，在频域上由一个逻辑资源块RB组构成；其中，每个所述信道竞争区域中的一个信道竞争单元与所述数据发送与接收时频资源区域的一个数据单元一一对应；其中，所述逻辑RB组包括至少一个物理连续的RB，或至少一个物理上不连续的RB；
    所述数据发送与接收时频资源区域包括：至少两个用于所述第一类型通信节点或第二类型通信节点传输的数据单元。
  25. 根据权利要求21所述的方法，其中，所述信道占用通告信号包括下述至少之一：当前信道监听LBT成功的指示信息；COT信息；COT资源所属资源池的指示信息；信道访问优先级；所述信道竞争区域的符号数。
  26. 根据权利要求21所述的方法，其中，所述信道占用通告信号资源的配置方式包括下述之一：资源池配置；每个带宽部分BWP或载波配置；在COT最开始位置配置。
  27. 根据权利要求21所述的方法，其中，所述信道占用通告信号的形式包括：至少两个符号的序列；
    其中，所述符号包括下述之一：符号片段；特定子载波间隔SCS确定的符号。
  28. 根据权利要求25所述的方法，其中，所述COT信息采用下述之一方式表示：资源元素RE偏移值；不同序列；一个序列的不同序列偏移值。
  29. 根据权利要求25所述的方法，其中，所述信道访问优先级采用下述之一方式表示：RE偏移值；不同序列；一个序列的不同序列偏移值。
  30. 根据权利要求21所述的方法，其中，所述信道竞争区域的确定方式包括下述之一：
    资源池内周期性地配置信道竞争区域；
    载波内基于物理时隙，周期性地配置信道竞争区域；
    基站指示一个COT内配置一个信道竞争区域；
    采用预设规则在一个COT内配置一个信道竞争区域。
  31. 根据权利要求21所述的方法，其中，一个所述信道竞争区域内符号数量的确定方式包括下述之一：
    以所述信道占用通告信号指示的可用符号数确定；
    以所述信道占用通告信号在时隙内的符号位置确定。
  32. 根据权利要求21所述的方法，其中，一个所述信道竞争区域内竞争单元数量的确定方式包括下述之一：
    以最大COT时长内包含的数据单元的数量确定；
    由所述信道竞争区域的周期确定；
    由所述信道竞争区域周期内包含的数据单元的数量确定。
  33. 根据权利要求21所述的方法，其中，所述在信道竞争区域的信道竞争单元上发送信道竞争信号包括下述之一：
    在第一信道竞争单元集合中选择至少一个信道竞争单元，并在信道竞争信号图样集合中选择一个信道竞争信号图样，按照所述信道竞争信号图样在所述信道竞争单元上发送信道竞争信号；
    根据已选择的数据单元或媒体访问控制MAC指示的数据单元，选择数据单元对应的信道竞争单元发送信道竞争信号。
  34. 根据权利要求21所述的方法，其中，信道竞争信号图样集合包括至少一个所述信道竞争信号图样，所述信道竞争信号图样集合的确定方式包括：
    由预先配置的信道竞争信号图样表指示。
  35. 根据权利要求34所述的方法，其中，所述信道竞争信号图样由以下方式之一确定：
    在所述信道竞争信号图样集合中随机选择其中之一；
    根据优先级，选择优先级对应的信道竞争信号图样集合中的其中之一；
    使用信道竞争信号图样集合中的第一信道竞争信号图样；
    在信道竞争符号内随机选择K个符号作为监听符号，并将所述信道竞争符号内除所述监听符号之外的符号作为发送符号。
  36. 根据权利要求21所述的方法，其中，所述信道占用通告信号的起始符号位置在时隙内允许的最大值的确定方式，包括下述之一：由配置信息进行指示；预配置值。
  37. 根据权利要求21所述的方法，其中，所述第二类型通信节点与所述第一类型通信节点之间的关系，包括下述之一：
    所述第二类型通信节点的竞争信号接收能量大于能量门限值，所述第二类型通信节点的当前优先级大于或等于所述信道占用通告信号指示的优先级；
    其中，所述第二类型通信节点为第一类型通信节点的目标接收节点。
  38. 一种信道共享设备，包括：通信模块，存储器，以及一个或多个处理器；
    所述通信模块，配置为在第一类型通信节点和第二类型通信节点之间进行通信交互；
    所述存储器，配置为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权利要求1-20或21-37中任一项所述的方法。
  39. 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如上述权利要求1-20或21-37中任一项所述的方法。
PCT/CN2022/106040 2021-07-21 2022-07-15 信道共享方法、设备和存储介质 WO2023001078A1 (zh)

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Citations (4)

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CN105992222A (zh) * 2015-01-29 2016-10-05 北京三星通信技术研究有限公司 竞争信道资源的方法和设备
CN106160967A (zh) * 2015-03-30 2016-11-23 中兴通讯股份有限公司 一种非授权资源的传输方法和装置
WO2016185275A1 (en) * 2015-05-15 2016-11-24 Alcatel Lucent Method and apparatus for resource contention based on access priority
CN107734710A (zh) * 2016-08-11 2018-02-23 中兴通讯股份有限公司 一种数据传输的方法及装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105992222A (zh) * 2015-01-29 2016-10-05 北京三星通信技术研究有限公司 竞争信道资源的方法和设备
CN106160967A (zh) * 2015-03-30 2016-11-23 中兴通讯股份有限公司 一种非授权资源的传输方法和装置
WO2016185275A1 (en) * 2015-05-15 2016-11-24 Alcatel Lucent Method and apparatus for resource contention based on access priority
CN107734710A (zh) * 2016-08-11 2018-02-23 中兴通讯股份有限公司 一种数据传输的方法及装置

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