CN114389721A

CN114389721A - Channel occupation time sharing method, device, system and storage medium

Info

Publication number: CN114389721A
Application number: CN202011110156.7A
Authority: CN
Inventors: 周欢
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2022-04-22

Abstract

The embodiment of the application provides a channel occupation duration sharing method, device, system and storage medium, wherein the method comprises the steps of obtaining a channel occupation duration COT of a first channel on an unauthorized frequency band; sending COT information to one or more terminal devices, wherein the COT information is used for representing the time for allowing the one or more terminal devices to share the first channel. In the embodiment of the application, the channel occupancy duration of the network equipment is shared to the terminal equipment, so that the channel occupancy is improved, and the system performance is improved.

Description

Channel occupation time sharing method, device, system and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, a device, a system, and a storage medium for sharing a channel occupation duration.

Background

With the development of communication technology, it is difficult for a licensed frequency band to meet the communication requirement between a terminal and a base station, for example, in a 5G communication system, it is necessary to extend the communication between the base station and the terminal to an unlicensed frequency band. However, before the unlicensed frequency band is used, the unlicensed frequency band needs to be detected to determine the state of the unlicensed frequency band, and when the unlicensed frequency band is in an idle state, the unlicensed frequency band can be occupied for communication.

In order to ensure fairness, devices transmitting in an unlicensed frequency band generally need to comply with Listen Before Talk (LBT) rules, that is, a device needs to listen to a channel first before transmitting a signal and start transmission when the channel is idle. The device does not permanently occupy the Channel, but determines an occupied duration, which may be referred to as a Channel Occupancy Time (COT), where the device occupies an idle unlicensed frequency band within the occupied duration.

However, the terminal and the base station respectively apply for a channel based on the LBT mechanism for uplink transmission or downlink transmission, which may result in a waste of channel resources applied by the terminal or the base station. For example, after the base station obtains the COT of a certain channel, the downlink transmission of the base station may not use up the COT of the channel, which causes a waste of channel resources.

Disclosure of Invention

In view of this, the present application provides a method, a device, a system, and a storage medium for sharing a channel occupation duration, so as to facilitate solving the problem in the prior art that a terminal and a base station respectively apply for a channel based on an LBT mechanism to perform uplink transmission or downlink transmission, which results in a waste of channel resources applied by the base station.

In a first aspect, an embodiment of the present application provides a channel occupancy duration sharing method, which is applied to a network device, and the method includes: acquiring a channel occupation time COT of a first channel on an unauthorized frequency band; sending COT information to one or more terminal devices, wherein the COT information is used for representing the time for allowing the one or more terminal devices to share the first channel.

In an optional embodiment, the COT information includes a length of a channel occupancy duration.

In an optional embodiment, the sending COT information to one or more terminal devices includes: and carrying the COT information in downlink control information of the network equipment, and sending the COT information to one or more terminal equipment.

In an optional embodiment, the carrying the COT information in the downlink control information of the network device includes: newly adding downlink control information, and loading the COT information in the newly added downlink control information; or, adding the COT information in the existing downlink control information, and carrying the COT information in the existing downlink control information.

In a second aspect, an embodiment of the present application provides a channel occupancy duration sharing method, which is applied to a terminal device, and the method includes: receiving COT information sent by network equipment, wherein the COT information is used for representing time for allowing the terminal equipment to share the first channel; and performing uplink transmission to the network equipment through a first channel in the COT corresponding to the COT information.

In an optional embodiment, the COT information includes a length of a channel occupying duration, and a time when the COT information is received is used as a starting point of the channel occupying duration.

In an optional embodiment, performing uplink transmission to the network device through a first channel in the COT corresponding to the COT information includes: in the COT corresponding to the COT information, if the first channel is monitored to be in an idle state, uplink transmission is carried out on network equipment through the first channel; or, directly performing uplink transmission to the network device through the first channel in the COT corresponding to the COT information.

In a third aspect, an embodiment of the present application provides a network device, including: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the network device, cause the network device to perform the method of any of the first aspects above.

In a fourth aspect, an embodiment of the present application provides a terminal device, including: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the terminal device, cause the terminal device to perform the method of any of the second aspects above.

In a fifth aspect, an embodiment of the present application provides a communication system, which includes the network device in the third aspect and the terminal device in the fourth aspect, where the terminal device and the network device are communicatively connected.

In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium includes a stored program, where the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method according to any one of the above first aspects.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium includes a stored program, where when the program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the method in any one of the second aspects. In the embodiment of the application, the channel occupancy duration of the network equipment is shared to the terminal equipment, so that the channel occupancy is improved, and the system performance is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Fig. 1 is a schematic view of a scenario of a communication system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a channel occupation duration sharing method according to an embodiment of the present application;

fig. 3 is a schematic flowchart of another channel occupation duration sharing method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Before specifically describing the embodiments of the present application, a brief description will be given of the scenario referred to in the present application.

Referring to fig. 1, a scene diagram of a communication system according to an embodiment of the present application is shown. The communication system 100 may be a wireless communication system, which may operate in a licensed frequency band or an unlicensed frequency band. It can be understood that the use of the unlicensed frequency band can improve the system capacity of the wireless communication system, improve the channel access efficiency, improve the spectrum resource utilization rate, and finally improve the system performance.

As shown in fig. 1, the communication system 100 may include at least one network device 101 and at least one terminal device 102, and the network device 101 is connected to the terminal device 102, the terminal device 102 and the terminal device 102, and the network device 101 through wired or wireless communication technologies. The number and form of the terminal devices 102 and the network devices 101 shown in fig. 1 are not limited to the embodiments of the present application. In different embodiments, the network device 101 may also be connected to a core network device, which is not shown in fig. 1.

It should be noted that, the wireless communication systems mentioned in the embodiments of the present application include, but are not limited to: a narrowband Band-internet of Things (NB-IoT), a Global System for Mobile Communications (GSM) 100, an Enhanced Data Rate GSM Evolution (EDGE) System, a Wideband Code Division Multiple Access (WCDMA) System, a Code Division Multiple Access (Code Division Multiple Access, CDMA2000) System, a time Division-synchronous Code Division Multiple Access (TDSCDMA) System, a Long term Evolution (Long term Evolution, LTE) System, a fifth generation Mobile communication System, a vehicle-mounted wireless short-range communication System, and a future Mobile communication System.

In this embodiment, the network device 101 is a device deployed in a radio access network and providing a wireless communication function for the terminal device 102. The network device 101 may include, but is not limited to, a Base Station (BS), a Station (Station, STA including an Access Point (AP) and a non-AP Station STA), a network controller, a Transmission and Reception Point (TRP), a mobile switching center or a wireless Access Point in wifi, and the like, and for example, a device directly communicating with the terminal device 102 through a wireless channel is typically a Base Station. The base station may include various forms of macro base stations, micro base stations, relay stations, access points, or Radio Remote Units (RRUs), etc. Of course, the network device 101 may perform wireless communication with the terminal device 102, and may also perform other wireless communication functions, which is not limited in this application.

The Terminal device 102 may include, for example, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., and is a device that provides voice and/or data connectivity communication to a User, such as a handheld device with wireless connectivity capability, a vehicle-mounted device, a wearable device, a computing device, or other processing device linked to a wireless modem. Currently, some examples of terminals are: a Mobile Phone (Mobile Phone), a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable Device, a Virtual Reality (VR) Device, an Augmented Reality (AR) Device, a wireless terminal in Industrial Control (Industrial Control), a wireless terminal in unmanned Driving (Self Driving), a wireless terminal in Remote Surgery (Remote Medical Surgery), a wireless terminal in Smart Grid, a wireless terminal in Transportation Safety, a wireless terminal in City (Smart City), a wireless terminal in Smart Home (Smart Home), and the like.

Note that the names of the devices may be different in different systems, for example, in an LTE network, the base station is called an Evolved Node B (eNB or eNodeB), in the third Generation (3G) network, the base station is called a Node B (Node B), and in a 5G network, the base station is called a 5G base station (NR Node B, gNB).

In the vehicular wireless short-range communication system, the network device 101 is referred to as a management Node (G Node), which may also be referred to as a G Node, and the G Node is a Node for transmitting data scheduling information in the vehicular wireless short-range communication system; the Terminal device 102 is referred to as a Terminal Node (T Node) or a T Node, and the T Node is a Node that receives data scheduling information and transmits data according to the data scheduling information in the vehicle-mounted wireless short-range communication system. In addition, a Communication link (Communication link for transmission from the Node to the Terminal Node) from the management Node to the Terminal Node is referred to as a G link, and the G link may carry a data channel, a control channel, a broadcast channel, a synchronization signal, and the like from the management Node to the Terminal Node; a Communication link for a transmission from a Terminal Node to a management Node (Node) is referred to as a T link, and the T link may carry a data channel, an access channel, and the like from the Terminal Node to the management Node.

In this embodiment, the term "sender" is a party that initiates transmission, or may be a party that sends a signal, and in different embodiments, the sender may be a network device, or may be a terminal device. That is, the signal may be a downlink signal or may be an uplink signal. The signal includes data and/or signaling.

In the unlicensed frequency band, a transmitter that needs to transmit data or signaling generally needs to use or share radio resources in a contention manner, and this process may be referred to as a Channel Access Procedure (Channel Access Procedure). In some embodiments, the manner of contention may employ an LBT mechanism. Specifically, a network device or a terminal device listens (listen to) or senses (sense) a certain channel of an unlicensed band before transmitting a signal or data to determine whether the channel is free or busy. If the channel is idle, the network equipment or the terminal equipment transmits; if the channel is busy, the network device or the terminal device does not transmit. In some examples, the sender may determine whether a corresponding Channel is Clear or busy according to the magnitude of the received power of a certain Channel on the unlicensed frequency band, and this mechanism may be referred to as Clear Channel Assessment (CCA). If the received power is less than a predetermined threshold, the channel is in an idle state, otherwise the channel is in a busy state.

In different embodiments, the LBT mechanism may include at least two types, where the first type is an LBT mechanism based on random backoff, and the second type is an LBT mechanism without random backoff. In the following, two types of LBT mechanisms are described in more detail.

The first Type of LBT (Type 1LBT) is explained first. The method comprises the steps that a sender monitors the state of a certain channel in a time period, and selects a random backoff number to start backoff before accessing when the sender monitors that the channel of the channel in the time period is idle. Illustratively, the back-off procedure takes a back-off slot T _ sl as a granularity, (e.g., T _ sl ═ 9us, the size of the back-off slot is not limited in the present application). And after the sender selects the random backoff number N, if N is equal to 0, ending the access of the random backoff process to the channel. If N >0, let N be N-1, and listen to the channel in a backoff slot T _ sl, if the channel is idle, repeat the process until N is 0, otherwise, if the channel is occupied, the sender needs to listen to the channel as idle in an additional time period, continue the backoff process until N is 0, and then access the channel. When the back-off is finished, the Channel is accessed again, and the Channel occupation Time is obtained, which may also be referred to as Maximum Channel Occupation Time (MCOT), and the sender allows continuous transmission within the Channel occupation Time. In various embodiments, the MCOT may be 2ms, 4ms, 6ms, 10ms, etc., or other time units. It should be noted that, in the wfi system, the sender acquires a transmission Opportunity (Tr a n m I t Opportunity, TXOP), which may include a certain duration of occupation. In some embodiments, after the sender successfully obtains the corresponding channel occupation time, the channel may be granted to other devices communicating with the sender, that is, after the sender obtains the MCOT through LBT, the MCOT may be shared for use by other devices communicating with the sender.

Next, the second Type LBT (Type 2LBT) will be described. A sender monitors the state of a certain channel within a fixed time period (for example, 25 microseconds (us)), and when the channel of the channel within the fixed time period is monitored to be idle, the channel can be accessed for transmission; when the channel is sensed to be busy for the fixed period of time, then wait for the next sensing opportunity or abandon sensing. Since backoff is not required, Type 2LBT can access the channel more quickly than Type 1 LBT.

It can be understood that the terminal device needs to obtain the COT of a certain channel based on LBT before performing uplink transmission through the unlicensed frequency band; before downlink transmission is performed through an unlicensed frequency band, the network device also needs to obtain a COT of a certain channel based on LBT. However, the process of applying for a channel based on LBT is time-consuming, especially with Type 1 LBT. According to the embodiment of the application, after the network equipment obtains the COT of a certain channel, the COT of the channel is shared to one or more terminal equipment, the occupancy rate of the channel is improved, and the system performance is improved. The following detailed description is made with reference to the accompanying drawings.

Referring to fig. 2, a flow chart of a channel occupation duration sharing method provided in the embodiment of the present application is schematically shown. The method is applicable to the communication system shown in fig. 1, as shown in fig. 2, and mainly includes the following steps.

Step S201: the network device obtains a channel occupancy duration COT of a first channel on an unlicensed frequency band.

It can be understood that the network device may apply for the channel in the unlicensed frequency band based on the LBT mechanism before performing downlink transmission, and the network device may apply for the channel based on the LBT mechanism without random backoff, which is not limited in the embodiment of the present application.

It should be noted that, the network device obtains different Maximum Channel Occupancy durations (MCOT) based on different service priorities (e.g., telephone service, voice service, video service, etc.), for example, the MCOT may be 2ms, 3ms, 8ms, or 10ms, and the MCOT represents the Maximum available Channel Time.

Step S202: and the network equipment sends COT information to the terminal equipment.

After obtaining the COT of the first channel through LBT (the COT may also be understood as MCOT), the network device shares the COT of the channel with the terminal device, and sends the COT information of the channel to the terminal device, where the COT information is used to characterize a time for allowing the terminal device to share the first channel. It is understood that a network device may not use up the COT by transmitting downstream within the COT of the first channel. For example, the network device obtains the MCOT of the first channel as 3ms through LBT, and downlink transmission of the network device uses 2ms, so that 1ms of the MCOT is still left for uplink transmission of the terminal device. Therefore, the network equipment and the terminal equipment share the channel, so that the occupation ratio of the channel can be improved, and the system performance is improved. In an optional embodiment, the COT information includes a channel occupancy duration length, the terminal device uses a time when the COT information is received as a channel occupancy duration starting point, and based on the channel occupancy duration starting point and the channel occupancy duration length, the terminal device may determine a time when the terminal device can occupy the first channel. Specifically, the length of the channel occupation duration may be a length of a radio frame.

To transmit the COT information, the COT information may be encoded. The number of bits N occupied by the COT information depends on the number M of COT information that needs to be configured, where N is ceil (log2(M)), and ceil represents rounding up. For example, if 4 pieces of COT information need to be arranged, the number N of bits occupied by the COT information may be 2, and may be "00", "01", "10", or "11", respectively. For example, when the COT information is "00", it indicates that the duration of occupied channel shared to the terminal device is L1; when the COT information is "01", it indicates that the occupied time of the channel shared to the terminal device is L2; when the COT information is "10", it indicates that the occupied time of the channel shared to the terminal device is L3; when the COT information is "11", it indicates that the duration of the channel occupancy shared to the terminal device is L1.

In an optional embodiment, a new downlink control information format is newly added, which is used to carry COT information and notify the terminal device of the shared channel condition. Or, adding the COT information in the existing downlink control information, using M bits of the COT information as a field, and carrying the COT information in the existing downlink control information. The embodiment of the present application does not limit the specific implementation manner thereof.

Step S203: and the terminal equipment carries out uplink transmission to the network equipment through a first channel in the COT corresponding to the COT information.

After the downlink transmission of the network equipment is finished, the terminal equipment carries out uplink transmission to the network equipment through the first channel, avoids the situation that the terminal equipment reappears the channel based on an LBT mechanism, saves time, improves the occupancy rate of the channel and improves the system performance.

It should be noted that, in this embodiment of the present application, the network device may also send COT information to multiple terminal devices, and the terminal devices respectively perform uplink transmission to the network device according to the time of the received COT information and the length of the allocated channel occupation duration.

Referring to fig. 3, a schematic flow chart of another channel occupation duration sharing method provided in the embodiment of the present application is shown. On the basis of the embodiment shown in fig. 2, step S203 specifically includes the following steps.

Step S301: and monitoring the working state of the first channel in the COT corresponding to the COT information.

In this embodiment, before performing uplink transmission, the terminal device may listen to a state of the first channel within a fixed time period (e.g., 25 microseconds (us)) in a COT based on an LBT mechanism that does not perform random backoff.

Step S302: and if the first channel is monitored to be in an idle state, uplink transmission is carried out on the network equipment through the first channel.

And if the first channel is monitored to be in an idle state, indicating that the first channel can be occupied, carrying out uplink transmission to the network equipment through the first channel.

In the embodiment of the application, the terminal equipment directly executes channel access based on an LBT mechanism without random backoff, so that the channel access time is saved, and the occupancy rate of the channel is improved.

Of course, the terminal device may also directly access the first channel for uplink transmission in the COT without monitoring the state of the first channel.

Corresponding to the method embodiment, the application also provides a terminal device and a network device.

Referring to fig. 4, a schematic structural diagram of a terminal device provided in the embodiment of the present application is shown. A simplified schematic diagram of a possible design structure of the terminal device involved in the above-described method embodiment is shown in fig. 4. The terminal device includes a transceiver 401, a processor 402, a memory 403, and a modem 404, and the transceiver 401, the processor 402, the memory 403, and the modem 404 are connected via a bus.

The transceiver 401 conditions (e.g., converts to analog, filters, amplifies, and frequency upconverts, etc.) the output samples and generates an uplink signal, which is transmitted via an antenna to the network devices in the embodiments described above. In the downlink, the antenna receives the downlink signal from the network device in the above-described embodiment. The transceiver 401 conditions (e.g., filters, amplifies, downconverts, and digitizes, etc.) the received signal from the antenna and provides input samples. Illustratively, in the modulation processor 404, an encoder 4041 receives traffic data and signaling messages to be transmitted on the uplink and processes (e.g., formats, encodes, and interleaves) the traffic data and signaling messages. A modulator 4042 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides the output samples. A demodulator 4043 processes (e.g., demodulates) the input samples and provides symbol estimates. A decoder 4044 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages for transmission to the terminal device. The encoder 4041, modulator 4042, demodulator 4043, and decoder 4044 may be implemented by the composite modem 404. These elements are handled according to the radio access technology employed by the radio access network (e.g., the access technology of LTE, 5G, and other evolved systems). In the embodiment shown in fig. 4, the transceiver 401 is integrated by a transmitter and a receiver, which may be independent of each other in other embodiments.

The processor 402 performs control management on the terminal device for executing the steps of the processing performed by the terminal device in the above-described method embodiment. For example, other processes for controlling terminal devices for uplink transmissions and/or techniques described herein. As an example, the processor 402 is configured to enable the terminal device to perform the processing procedure related to the terminal device in fig. 2 and 3. For example, the transceiver 401 is used to control/receive signals transmitted in the downlink through an antenna. In various embodiments, processor 402 may include one or more processors, such as one or more CPUs, and processor 402 may be integrated in a chip or may be the chip itself.

The memory 403 is used for storing relevant instructions and data, as well as program codes and data of the terminal. In various embodiments, Memory 403 includes, but is not limited to, Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), non-transitory computer readable storage medium, or Compact Disc Read-Only Memory (CDROM). In this embodiment, the memory 403 is separate from the processor 402. In other embodiments, the memory 403 may also be integrated into the processor 402.

It will be appreciated that fig. 4 only shows a simplified design of the terminal device. In various embodiments, the terminal device may include any number of transmitters, receivers, processors, memories, etc., and all terminal devices that may implement the present application are within the scope of the present application.

Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application. A simplified schematic diagram of one possible design structure of the network device involved in the above-described method embodiment is shown in fig. 5. The network device includes a transceiver 501, a processor 502, a memory 503, and a modem 504, and the transceiver 501, the processor 502, the memory 503, and the modem 504 are connected via a bus.

The transceiver 501 conditions (e.g., converts to analog, filters, amplifies, and frequency upconverts, etc.) the output samples and generates a downlink signal, which is transmitted via an antenna to the terminal devices in the above-described embodiments. In the uplink, the antenna receives the uplink signal from the terminal device in the above-described embodiment. The transceiver 501 conditions (e.g., filters, amplifies, downconverts, and digitizes, etc.) the received signal from the antenna and provides input samples. Illustratively, in the modulation processor 504, an encoder 5041 receives traffic data and signaling messages to be transmitted on the downlink and processes (e.g., formats, encodes, and interleaves) the traffic data and signaling messages. A modulator 5042 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides the output samples. A demodulator 5043 processes (e.g., demodulates) the input samples and provides symbol estimates. A decoder 5044 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages for transmission to a network device. The encoder 5041, modulator 5042, demodulator 5043, and decoder 5044 may be implemented by a composite modem 504. These elements are handled according to the radio access technology employed by the radio access network (e.g., the access technology of LTE, 5G, and other evolved systems). In the embodiment shown in fig. 5, the transceiver 501 is integrated by a transmitter and a receiver, which may be independent of each other in other embodiments.

The processor 502 performs control management on the network device for performing the steps of the processing performed by the network device in the above-described method embodiment. For example, to control network devices for uplink transmissions and/or other processes for the techniques described herein. By way of example, the processor 502 may be configured to support a network device to perform the processes of fig. 2 and 3 involving the network device. For example, the transceiver 501 is used to control/receive uplink signals through an antenna. In various embodiments, processor 502 may include one or more processors, e.g., including one or more CPUs, and processor 502 may be integrated in a chip or may be the chip itself.

The memory 503 is used for storing relevant instructions and data, as well as program codes and data for the terminal. In various embodiments, Memory 503 includes, but is not limited to, Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), non-transitory computer readable storage medium, or Compact Disc Read-Only Memory (CDROM). In this embodiment, the memory 503 is independent of the processor 502. In other embodiments, the memory 503 may also be integrated into the processor 502.

It will be appreciated that fig. 5 only shows a simplified design of the network device. In various embodiments, a network device may include any number of transmitters, receivers, processors, memories, etc., and all network devices that may implement the present application are within the scope of the present application.

Corresponding to the above device embodiment, an embodiment of the present application further provides a communication system, where the communication system includes the terminal device shown in fig. 4 and the network device shown in fig. 5.

In specific implementation, the present application further provides a computer storage medium, where the computer storage medium may store a program, and the program may include some or all of the steps in the embodiments provided in the present application when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).

In a specific implementation, an embodiment of the present application further provides a computer program product, where the computer program product includes executable instructions, and when the executable instructions are executed on a computer, the computer is caused to perform some or all of the steps in the foregoing method embodiments.

In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided by the present invention, any function, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only an embodiment of the present invention, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A channel occupation time sharing method is applied to network equipment, and the method comprises the following steps:

acquiring a channel occupation time COT of a first channel on an unauthorized frequency band;

sending COT information to one or more terminal devices, wherein the COT information is used for representing the time for allowing the one or more terminal devices to share the first channel.

2. The method of claim 1, wherein the COT information comprises a channel occupancy duration length.

3. The method of claim 1, wherein sending COT information to one or more terminal devices comprises:

and carrying the COT information in downlink control information of the network equipment, and sending the COT information to one or more terminal equipment.

4. The method of claim 3, wherein the carrying the COT information in downlink control information of the network device comprises:

newly adding downlink control information, and loading the COT information in the newly added downlink control information; alternatively, the first and second electrodes may be,

and adding the COT information in the existing downlink control information, and carrying the COT information in the existing downlink control information.

5. A channel occupation time sharing method is applied to terminal equipment, and is characterized in that the method comprises the following steps:

receiving COT information sent by network equipment, wherein the COT information is used for representing time for allowing the terminal equipment to share the first channel;

and performing uplink transmission to the network equipment through a first channel in the COT corresponding to the COT information.

6. The method of claim 5, wherein the COT information comprises a length of a channel occupancy duration, and wherein a time when the COT information is received is used as a starting point of the channel occupancy duration.

7. The method of claim 5, wherein performing uplink transmission to the network device through a first channel in the COT corresponding to the COT information comprises:

in the COT corresponding to the COT information, if the first channel is monitored to be in an idle state, uplink transmission is carried out on network equipment through the first channel; alternatively, the first and second electrodes may be,

and directly carrying out uplink transmission to network equipment through the first channel in the COT corresponding to the COT information.

8. A network device, comprising:

one or more processors;

a memory;

and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the network device, cause the network device to perform the method of any of claims 1-4.

9. A terminal device, comprising:

one or more processors;

a memory;

and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the terminal device, cause the terminal device to perform the method of any of claims 5 to 7.

10. A communication system comprising the network device of claim 8 and the terminal device of claim 9, the terminal device and the network device being communicatively connected.

11. A computer-readable storage medium, comprising a stored program, wherein the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method of any one of claims 1 to 4.

12. A computer-readable storage medium, comprising a stored program, wherein the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method of any one of claims 5 to 7.