Information transmission method, network device and terminal device

Abstract

The embodiment of the present application provides a method for transmitting information, a network device, and a terminal device, which can enable the terminal device to identify the downlink transmission of the network device. The method is applied to a communication system including a network device and a terminal device, and the frequency domain resources on the carrier used by the communication system are frequency domain resources used based on a competition mechanism. The method includes: the network device determines a first time-frequency resource that can be used, and the first time-frequency resource is a time-frequency resource in a first downlink transmission opportunity; the network device sends first information to the terminal device through the first time-frequency resource, and the first information is used by the terminal device to determine that the first time-frequency resource is a downlink time-frequency resource, and the first information is also used to determine the end position of the first downlink transmission opportunity, and the first information is information obtained after the first beamforming process.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communications, and more specifically, to a method for transmitting information, a network device, and a terminal device. Background Art

[0002] In the Licensed-Assisted Access (LAA-LTE) system based on Long Term Evolution (LTE), the carrier on the licensed spectrum is used as the main carrier, and the carrier on the unlicensed spectrum is used as the auxiliary carrier to provide services for terminal devices. In the unlicensed spectrum, the communication device follows the "Listen Before Talk (LBT)" principle, that is, before the communication device sends a signal on the channel of the unlicensed spectrum, it needs to perform channel sensing first. Only when the channel sensing result is that the channel is idle, can the communication device send a signal; if the channel sensing result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot send a signal.

[0003] In the LAA-LTE system, the transmission of network equipment is opportunistic. Data transmission can only be performed when LBT succeeds. Data transmission cannot be performed when LBT fails. Therefore, the terminal equipment in the cell served by the network equipment needs to know when the network equipment starts downlink transmission and when it stops downlink transmission, so as to perform correct data communication with the network equipment.

[0004] In the LAA-LTE system, each subframe sent by the network device has a Cell-specific Reference Signal (CRS). The terminal device can determine whether there is a downlink transmission of the network device in the subframe by detecting whether there is a CRS in the current subframe, so as to communicate data with the network device correctly.

[0005] However, when the New Radio (NR) technology is applied to the unlicensed spectrum, since there is no CRS in the NR system, in this case, how the terminal device determines the time and frequency resources of the network device for downlink transmission to achieve correct data communication with the network device is an urgent problem to be solved. Summary of the invention

[0006] The embodiments of the present application provide a method for transmitting information, a network device, and a terminal device, which enable the terminal device to identify the time and frequency resources of the network device for downlink transmission.

[0007] In a first aspect, a method for transmitting information is provided, which is applied to a communication system including a network device and a terminal device, wherein a frequency domain resource on a carrier used by the communication system is a frequency domain resource used based on a contention mechanism, and the method comprises:

[0008] The network device determines a first time-frequency resource that can be used, where the first time-frequency resource is a time-frequency resource in a first downlink transmission opportunity;

[0009] The network device sends first information to the terminal device through the first time-frequency resource, and the first information is used by the terminal device to determine that the first time-frequency resource is a downlink time-frequency resource, and the first information is also used to determine the end position of the first downlink transmission opportunity. The first information is information obtained after the first beamforming processing.

[0010] Optionally, a downlink transmission opportunity can be defined as a time unit for continuous transmission by a network device. A time unit can be defined as one or more subframes, one or more time slots, or one or more micro time slots, etc. The embodiments of the present application are not limited to this.

[0011] The start time unit and / or end time unit of a downlink transmission opportunity in the embodiment of the present application can be a complete time unit, for example, a complete subframe, a time slot or a micro-time slot, etc., or it can be a partial time unit, for example, a partial subframe, a partial time slot or a partial micro-time slot, etc. The embodiment of the present application is not limited to this.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the first information is further used to determine at least one of the following information:

[0013] The starting position of the first downlink transmission opportunity, the position of the first time-frequency resource in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the first beamforming.

[0014] In combination with the first aspect, in some implementations of the first aspect, the network device sending the first information to the terminal device through the first time-frequency resource includes:

[0015] The network device sends the first information to the terminal device via a downlink control channel or a reference signal on the first time-frequency resource.

[0016] The first information may be part or all of the content in the DCI, or the first information may be transmitted via a reference signal. The DCI may be transmitted via a common PDCCH or a group PDCCH, or the sequence of the reference signal may be generated based on a cell identifier, or the sequence of the reference signal may be predefined, which is not limited in the embodiments of the present application.

[0017] In combination with the first aspect, in some implementations of the first aspect, the first beamforming is applied to a first time unit in the first downlink transmission opportunity; or,

[0018] The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0019] The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0020] The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

[0021] That is to say, the first beamforming can be applied to the first time unit of the first downlink transmission opportunity, or to certain specific time units. The positions of the above specific time units are only examples and not limitations. The first beamforming can also be applied to time units that meet other conditions, which is not limited in the embodiments of the present application.

[0022] In combination with the first aspect, in some implementations of the first aspect, the method further includes:

[0023] The network device sends second information to the terminal device through a second time-frequency resource, the second information is used by the terminal device to determine that the second time-frequency resource is a downlink time-frequency resource, and the second information is also used to determine the end position of the first downlink transmission opportunity, the second information is information obtained after a second beamforming process, the second time-frequency resource is a time-frequency resource in the first downlink transmission opportunity, and the second time-frequency resource is later in time than the first time-frequency resource.

[0024] The second information may be part or all of the content in the DCI, or the second information may be transmitted via a reference signal. The DCI may be transmitted via a common PDCCH or a group PDCCH, or the sequence of the reference signal may be generated based on a cell identifier, or the sequence of the reference signal may be predefined, which is not limited in the embodiments of the present application.

[0025] In combination with the first aspect, in some implementations of the first aspect, the second information is further used to determine at least one of the following information:

[0026] The starting position of the first downlink transmission opportunity, the position of the second time-frequency resources in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the second beamforming.

[0027] In combination with the first aspect, in some implementations of the first aspect, a beam identifier of the first beamforming is different from a beam identifier of the second beamforming.

[0028] In combination with the first aspect, in some implementations of the first aspect, the second beamforming is applied to a time unit subsequent to a time unit to which the first beamforming is applied; or

[0029] The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0030] The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0031] The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

[0032] That is to say, the second beamforming can be applied to the time unit after the time unit to which the first beamforming is applied, or to certain specific time units. The positions of the above specific time units are only examples and not limitations. The second beamforming can also be applied to time units that meet other conditions, which is not limited in the embodiments of the present application.

[0033] Therefore, in the method for transmitting information of the embodiment of the present application, when the terminal device receives the DCI or reference signal, it can determine the starting position and / or ending position of the current downlink transmission opportunity according to the indication information carried in the DCI or reference signal, and then can perform normal data communication with the network device according to the starting position and / or ending position of the downlink transmission opportunity. In addition, since the signal transmission may be severely attenuated, the method for transmitting information of the embodiment of the present application, when sending the DCI or reference signal, can process the DCI or reference signal through beamforming in at least two directions, which is beneficial to increase the probability that the terminal devices in different directions correctly receive the DCI or reference signal.

[0034] In a second aspect, a method for transmitting information is provided, which is applied to a communication system including a network device and a terminal device, wherein the frequency domain resources on the carrier used by the communication system are frequency domain resources used based on a contention mechanism, and the method includes:

[0035] The terminal device receives the first information sent by the network device through the first time-frequency resource, where the first time-frequency resource is the time-frequency resource in the first downlink transmission opportunity;

[0036] The terminal device determines that the first time-frequency resource is a downlink time-frequency resource based on the first information. The first information is also used to determine the end position of the first downlink transmission opportunity. The first information is information obtained after the first beamforming processing.

[0037] In conjunction with the second aspect, in some implementations of the second aspect, the first information is further used to determine at least one of the following information:

[0038] The starting position of the first downlink transmission opportunity, the position of the first time-frequency resource in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the first beamforming.

[0039] In combination with the second aspect, in some implementations of the second aspect, the terminal device receives, through the first time-frequency resource, first information sent by the network device, including:

[0040] The terminal device receives the first information transmitted by the network device via a downlink control channel or a reference signal on the first time-frequency resource.

[0041] In combination with the second aspect, in some implementations of the second aspect, the first beamforming is applied to a first time unit in the first downlink transmission opportunity; or,

[0042] The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0043] The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0044] The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

[0045] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes:

[0046] The terminal device receives second information sent by the network device through the second time-frequency resource;

[0047] The terminal device determines that the second time-frequency resource is a downlink time-frequency resource based on the second information, and the second information is also used to determine the end position of the first downlink transmission opportunity. The second information is information obtained after the second beamforming processing. The second time-frequency resource is the time-frequency resource in the first downlink transmission opportunity. The second time-frequency resource is later in time than the first time-frequency resource.

[0048] In conjunction with the second aspect, in some implementations of the second aspect, the second information is further used to determine at least one of the following information:

[0049] The starting position of the first downlink transmission opportunity, the position of the second time-frequency resources in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the second beamforming.

[0050] In combination with the second aspect, in some implementations of the second aspect, a beam identifier of the first beamforming and a beam identifier of the second beamforming are different.

[0051] In combination with the second aspect, in some implementations of the second aspect, the second beamforming is applied to a time unit subsequent to a time unit to which the first beamforming is applied; or,

[0052] The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0053] The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0054] The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

[0055] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes:

[0056] The terminal device measures the channel state information of the downlink channel sent by the network device according to the starting position and / or ending position of the first downlink transmission opportunity.

[0057] In a third aspect, a network device is provided, which is used to execute the method in the first aspect or any possible implementation of the first aspect. Specifically, the network device includes a unit for executing the method in the first aspect or any possible implementation of the first aspect.

[0058] In a fourth aspect, a terminal device is provided, which is used to execute the method in the second aspect or any possible implementation of the second aspect. Specifically, the terminal device includes a unit for executing the method in the second aspect or any possible implementation of the second aspect.

[0059] In a fifth aspect, a network device is provided, the network device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected via a bus system. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory, so as to execute the method in the first aspect or any possible implementation of the first aspect.

[0060] In a sixth aspect, a terminal device is provided, the terminal device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected via a bus system. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory, so as to execute the method in the second aspect or any possible implementation of the second aspect.

[0061] In a seventh aspect, a computer storage medium is provided for storing computer software instructions for executing the method in the above-mentioned first aspect or any possible implementation of the first aspect, which includes a program designed for executing the above-mentioned aspect.

[0062] In an eighth aspect, a computer storage medium is provided for storing computer software instructions for executing the method in the second aspect or any possible implementation of the second aspect, which includes a program designed for executing the above aspect.

[0063] In a ninth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the method in the first aspect or any optional implementation of the first aspect.

[0064] In a tenth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the method in the second aspect or any optional implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 is a schematic diagram of a communication system according to an embodiment of the present application.

[0066] Figure 2 It is a schematic flowchart of a method for transmitting information according to an embodiment of the present application.

[0067] Figure 3 is a schematic diagram of an example of a method for transmitting information according to an embodiment of the present application;

[0068] Figure 4 It is a schematic diagram of an implementation method of transmitting indication information through beamforming in two directions.

[0069] Figure 5 It is a schematic diagram of another implementation manner of transmitting indication information through beamforming in two directions.

[0070] Figure 6 It is a schematic flowchart of a method for transmitting information according to an embodiment of the present application.

[0071] Figure 7 It is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0072] Figure 8 It is a schematic block diagram of a network device according to an embodiment of the present application.

[0073] Fig. 9 It is a schematic block diagram of a terminal device according to another embodiment of the present application.

[0074] Fig.10 is a schematic block diagram of a network device according to another embodiment of the present application. DETAILED DESCRIPTION

[0075] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0076] The terms "component", "module", "system", etc. used in this specification are used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program and / or a computer. By way of illustration, both applications running on a computing device and a computing device can be components. One or more components may reside in a process and / or an execution thread, and a component may be located on a computer and / or distributed between two or more computers. In addition, these components may be executed from various computer-readable media having various data structures stored thereon. Components may, for example, communicate through local and / or remote processes according to signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system and / or a network, such as the Internet interacting with other systems through signals).

[0077] It should be understood that the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system and NR system evolution system, such as NR (NR-based access to unlicensed spectrum, NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi) or next generation communication system, etc.

[0078] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), and vehicle to vehicle (Vehicle to Vehicle, V2V) communication.

[0079] The communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or an independent (SA) networking scenario.

[0080] When the communication system in the embodiment of the present application is applied to the unlicensed spectrum and the network deployment scenario is CA, the CA network deployment scenario can be that the main carrier is on the licensed spectrum, the auxiliary carrier is on the unlicensed spectrum, and the main carrier and the auxiliary carrier are connected through an ideal backhaul.

[0081] When the communication system in the embodiment of the present application is applied to the unlicensed spectrum and the networking scenario is DC, the DC networking scenario can be that the main carrier is on the licensed spectrum, the auxiliary carrier is on the unlicensed spectrum, and the main carrier and the auxiliary carrier are connected through a non-ideal backhaul, wherein the system on the main carrier may belong to a different system from the system on the auxiliary carrier, for example, the system on the main carrier is an LTE system, and the system on the auxiliary carrier is an NR system, or the system on the main carrier may belong to the same system as the system on the auxiliary carrier, for example, the systems on the main carrier and the auxiliary carrier are both LTE systems or both are NR systems.

[0082] When the communication system in the embodiment of the present invention is applied to the unlicensed spectrum and the network deployment scenario is SA, the terminal device can access the network through the system on the unlicensed spectrum.

[0083] The embodiments of the present application describe various embodiments in combination with network devices and terminal devices, wherein:

[0084] The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device may be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal device in a fifth-generation (5G) network or a terminal device in a future-evolved Public Land Mobile Network (PLMN) network.

[0085] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0086] The network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc.

[0087] In an embodiment of the present application, a network device provides services for a cell, and a terminal device communicates with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell may be a cell corresponding to a network device (e.g., a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: a metro cell, a micro cell, a picocell, a femtocell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0088] In the embodiment of the present application, multiple cells can work at the same frequency on a carrier in an LTE system or a 5G system at the same time. In some special scenarios, the above-mentioned carrier and the cell can be considered equivalent. For example, in a carrier aggregation (CA) scenario, when configuring a secondary carrier for a UE, the carrier index of the secondary carrier and the cell identifier (Cell Identify, Cell ID) of the secondary cell working on the secondary carrier will be carried at the same time. In this case, the concept of carrier and cell can be considered equivalent, for example, UE accessing a carrier is equivalent to accessing a cell.

[0089] The method and apparatus provided in the embodiment of the present application can be applied to a terminal device or a network device, which includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application, as long as it can communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, for example, the execution subject of the method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module in a terminal device or a network device that can call a program and execute a program.

[0090] In addition, various aspects or features of the embodiments of the present application can be implemented as methods, devices or products using standard programming and / or engineering techniques. The term "product" used in this application covers computer programs that can be accessed from any computer-readable device, carrier or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or tapes, etc.), optical disks (e.g., compact disks (Compact Disc, CD), digital versatile disks (Digital Versatile Disc, DVD), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), cards, sticks or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0091] Figure 1 Schematic diagram of a communication system according to an embodiment of the present application. Figure 1 As shown, the communication system 100 includes a network device 110 and a terminal device 120. The network device 110 can send a downlink physical channel or a reference signal to the terminal device 120 by means of beam forming, for example, a common downlink control information (Downlink Control Information, DCI) or a predefined reference signal. After the terminal device 120 detects the DCI information or the reference signal, it can determine the starting position and / or the ending position of the current downlink transmission opportunity. Furthermore, it can measure the channel state information (Channel State Information, CSI) of the downlink channel sent by the network device according to the starting position and / or the ending position of the current transmission opportunity, thereby realizing normal data communication with the network device.

[0092] Due to the severe attenuation of signal transmission in high-frequency scenarios, when sending DCI or reference signals, the network device 110 can process the DCI or reference signals through beamforming in at least two directions (for example, beamforming 130 and beamforming 140) to improve the probability of correct reception of the DCI or reference signals by terminal devices in different directions.

[0093] It should be noted that the downlink physical channels in the embodiment of the present application may include a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), a physical HARQ indicator channel (PHICH), a physical multicast channel (PMCH), a physical broadcast channel (PBCH), etc. The reference signal may include a phase tracking reference signal (PT-RS), a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), etc., wherein DMRS is used for demodulation of the downlink channel, CSI-RS is used for measurement of the downlink channel, and PT-RS is used for downlink time-frequency synchronization or phase tracking.

[0094] In addition, the communication system 100 may be a PLMN network or a D2D network or an M2M network or other network. Figure 1 This is just a simplified diagram for example. The network may also include other network devices. Figure 1 Not drawn in.

[0095] The following describes in detail the frequency domain resources used for wireless communication in the embodiments of the present application.

[0096] In an embodiment of the present application, frequency domain resources used by a network device and a terminal device for wireless communication (eg, uplink transmission or downlink transmission) are frequency domain resources used based on a contention mechanism.

[0097] For example, the network device and / or the terminal device may detect whether a frequency domain resource having a certain bandwidth (eg, 20 MHz) is currently in an idle state, or in other words, whether the frequency domain resource is used by other devices.

[0098] If the frequency domain resource is in an idle state, or in other words, the frequency domain resource is not used by other devices, the network device and / or the terminal device may use the frequency domain resource for communication, for example, for uplink transmission or downlink transmission.

[0099] If the frequency domain resource is not in an idle state, or in other words, the frequency domain resource has been used by other devices, the network device and / or the terminal device cannot use the frequency domain resource.

[0100] It should be noted that in the embodiments of the present application, the specific methods and processes of the above-mentioned competition mechanism may be similar to those in the prior art. Here, in order to avoid redundancy, the detailed description thereof is omitted.

[0101] As an example but not limitation, in an embodiment of the present application, the frequency domain resources used by the communication system 100 (or, the frequency domain resources used by the network device and the terminal device based on a competition mechanism) may also be authorized spectrum resources, that is, the communication system 100 of the embodiment of the present application is a communication system that can use an authorized frequency band, and each communication device (network device and / or terminal device) within the communication system 100 can use the frequency domain resources of the authorized frequency band in a competitive manner.

[0102] "Authorized frequency domain resources" can also be called "licensed spectrum resources" or "licensed carriers". They refer to frequency domain resources that require approval from the national or local wireless committee before they can be used. Different systems, such as LTE systems and WiFi systems, or systems included in different operators cannot share licensed frequency domain resources.

[0103] Authorized spectrum resources can be spectrum resources with special purposes designated by the government's Radio Management Committee, such as spectrum resources used by mobile operators, civil aviation, railways, and police. Due to the exclusivity of the policy, the service quality of licensed spectrum resources can generally be guaranteed, and it is relatively easy to conduct scheduling and control.

[0104] Alternatively, in an embodiment of the present application, the frequency domain resources used by the communication system 100 (or, the frequency domain resources used by the network device and the terminal device based on a contention mechanism) may be unlicensed frequency domain resources.

[0105] "Unlicensed frequency domain resources" can also be called "unlicensed spectrum resources" or "unlicensed carriers", which means that various communication devices can share the resources on the unlicensed frequency band. Among them, "sharing resources on the unlicensed frequency band" can mean: the use of a specific spectrum only stipulates restrictions on indicators such as transmit power and out-of-band leakage to ensure that multiple devices that use the frequency band together meet basic coexistence requirements. Operators can use unlicensed frequency band resources to achieve the purpose of network capacity diversion, but they need to comply with the regulatory requirements for unlicensed frequency band resources in different regions and different spectrums. These requirements are usually formulated to protect public systems such as radars and to ensure that multiple systems do not cause harmful effects to each other as much as possible and coexist fairly, including transmit power restrictions, out-of-band leakage indicators, indoor and outdoor use restrictions, and some regions have some additional coexistence strategies. For example, each communication device can use the frequency domain resources in a competitive manner or a monitoring manner, such as the listen-before-talk LBT method.

[0106] Unlicensed spectrum resources can be spectrum resources designated by relevant government departments, but there are no restrictions on radio technology, operating companies, and usage periods, and the service quality of the frequency band is not guaranteed. Communication equipment that uses unlicensed spectrum resources only needs to meet the requirements of transmission power, out-of-band leakage and other indicators to use them free of charge. Common systems that use unlicensed spectrum resources for communication include Wi-Fi systems, etc.

[0107] As an example and not limitation, in an embodiment of the present application, the unlicensed spectrum resources may include frequency bands near 5 Giga Hertz (GHz), frequency bands near 2.4 GHz, frequency bands near 3.5 GHz, frequency bands near 37 GHz, and frequency bands near 60 GHz.

[0108] In addition, the concept of transmission opportunity is introduced into the frame structure of the LTE system on the unlicensed frequency band, that is, the transmission of the network equipment is opportunistic, and data transmission is performed only when LBT succeeds. When LBT fails, data transmission cannot be performed.

[0109] In this way, when NR technology is used in unlicensed spectrum, since there is no CRS in the NR system, it is not feasible to determine whether there is downlink transmission of a network device in a subframe by detecting the presence of CRS.

[0110] In view of this, an embodiment of the present application provides a method for transmitting information, which enables a terminal device to identify the time and frequency resources used by a network device for transmission, thereby completing normal communication between the network device and the terminal device.

[0111] Combine the following Figures 2 to 6The method for transmitting information in an embodiment of the present application is explained. It should be noted that the "time-frequency resources" in the following description may include resources in the time domain, and may also include resources in the frequency domain. In the embodiment of the present application, it mainly involves the use of resources in the time domain. Therefore, the use of "time-frequency resources" in the process of the method for transmitting information in an embodiment of the present application described below mainly refers to the use of resources in the time domain. The use of resources in the frequency domain may be the same as or similar to the prior art. Here, in order to avoid redundancy, its detailed description is omitted.

[0112] It should be understood that Figures 2 to 6 is a schematic flow chart of a method for transmitting information in an embodiment of the present application, which shows detailed communication steps or operations of the method, but these steps or operations are only examples, and the embodiment of the present application may also perform other operations or Figures 2 to 6 Variations of various operations in .

[0113] also, Figures 2 to 6 The steps in Figures 2 to 6 are executed in a different order than those presented, and may not be executed in the order Figures 2 to 6 All operations in .

[0114] Figure 2 is a schematic flow chart of a method 200 for transmitting information according to an embodiment of the present application, such as Figure 2 As shown, the method 200 may include the following contents:

[0115] S201, the network device determines a first time-frequency resource that can be used, where the first time-frequency resource is a time-frequency resource in a first downlink transmission opportunity;

[0116] S202, the network device sends first information to the terminal device through the first time-frequency resource, the first information is used by the terminal device to determine that the first time-frequency resource is a downlink time-frequency resource, and the first information is also used to determine the end position of the first downlink transmission opportunity, and the first information is information obtained after the first beamforming processing.

[0117] In an embodiment of the present application, before a network device transmits a signal in an unlicensed spectrum, the network device may perform LBT detection on a carrier on the unlicensed spectrum. When LBT succeeds, the network device obtains a downlink transmission opportunity, during which the network device may perform downlink transmission. A downlink transmission opportunity may be defined as a time unit for continuous transmission of a network device, and a time unit may be defined as one or more subframes, one or more time slots, or one or more micro time slots, etc., which is not limited in the embodiment of the present application.

[0118] Optionally, in an embodiment of the present application, the first downlink transmission opportunity may include one time-frequency resource or multiple time-frequency resources, wherein the first time-frequency resource may be the first time-frequency resource in the first downlink transmission opportunity, that is, the time domain position of the first time-frequency resource is earlier than the time domain positions of other time-frequency resources in the first downlink transmission opportunity, or it may be the middle time-frequency resource in the first downlink transmission opportunity, that is, other time-frequency resources in the first downlink transmission opportunity may be before the first time-frequency resource, or it may be the last time-frequency resource in the first downlink transmission opportunity, that is, the time domain position of the first time-frequency resource is later than the time domain positions of other time-frequency resources in the first downlink transmission opportunity. The embodiment of the present application does not make any special limitation on this.

[0119] It should be understood that the start time unit and / or end time unit of a downlink transmission opportunity in the embodiment of the present application can be a complete time unit, for example, a complete subframe, a time slot or a micro-time slot, etc., or it can be a partial time unit, for example, a partial subframe, a partial time slot or a partial micro-time slot, etc. The embodiment of the present application is not limited to this.

[0120] The network device may send DCI or reference signals on some or all time units in a downlink transmission opportunity. After receiving the DCI or reference signal, the terminal device may determine whether there is a downlink transmission of the network device in the current time unit, that is, whether the network device performs downlink transmission in the current time unit. The DCI may be transmitted via a common PDCCH or a group PDCCH, and the sequence of the reference signal may be generated based on a cell identifier, or the sequence of the reference signal may be predefined, which is not limited in the embodiments of the present application.

[0121] In an embodiment of the present application, the DCI or reference signal may carry indication information, and the indication information may be used by the terminal device to determine that the time-frequency resource for transmitting the indication information is a downlink time-frequency resource, that is, the terminal device may determine whether there is a downlink transmission of a network device in the current time unit based on the indication information. Furthermore, the indication information may also be used by the terminal device to determine the end position of the current downlink transmission opportunity, so that the terminal device may determine when the network device stops downlink transmission based on the end position of the current downlink transmission opportunity, thereby achieving normal data communication with the network device.

[0122] Optionally, the indication information is transmitted in a complete downlink time unit. Further optionally, the terminal device can determine, based on the indication information, that there is downlink transmission by the network device in the current time unit, including: the terminal device can determine, based on the indication information, that the network device has downlink transmission in all time resources included in the current time unit.

[0123] It should be noted that, in some optional embodiments, if the network device does not obtain the right to use the channel at the beginning of the time unit, but obtains the right to use the channel in the middle of the time unit, the network device can still perform downlink transmission on the remaining part of the time unit in the time unit. Alternatively, the network device can use the first part of the time resources in a time unit for downlink transmission, and the second part of the time resources for uplink transmission. Alternatively, the network device can use the first part of the time resources in a time unit for uplink transmission, and the second part of the time resources for downlink transmission. In the case where part of the time resources in a time unit are used for downlink transmission, the network device may send the indication information or not, and may send the indication information in some cases and not send the indication information in other cases (for example, when the part of the time unit is the first part of the time unit, the indication information is sent; when the part of the time unit is the second part of the time unit, the indication information is not sent), and the present invention is not limited to this.

[0124] Optionally, the indication information is transmitted in a complete or partial downlink time unit. Further optionally, the terminal device can judge that there is downlink transmission of the network device in the current time unit according to the indication information, including: the terminal device can judge that the network device has downlink transmission in all or part of the time resources included in the current time unit according to the indication information.

[0125] It should be noted that, if the indication information is transmitted through the first time-frequency resource, the indication information may correspond to the first information described above, or, if the indication information is transmitted through the second time-frequency resource after the first time-frequency resource, the indication information may be recorded as the second information. Both the first information and the second information can be used by the terminal device to determine the end position of the first downlink transmission opportunity, wherein the end position of the first downlink transmission opportunity determined according to the first information and the end position of the first downlink transmission opportunity determined according to the second information may be the same or different. If they are different, it indicates that the end position of the first downlink transmission opportunity has been updated. Furthermore, the terminal device can communicate data with the network device based on the updated end position of the first downlink transmission opportunity.

[0126] The following, combined Figure 3The implementation process of the method for transmitting information according to the embodiment of the present application is introduced in detail. At a certain moment, the network device seizes the right to use the channel, that is, LBT is successful, so that the network device obtains a downlink transmission opportunity, which is recorded as the first downlink transmission opportunity. Taking the first downlink transmission opportunity as an example, the network device can include time-frequency resources for transmitting the indication information in each time unit of the first downlink transmission opportunity (for example, the first time-frequency resource, the second time-frequency resource, the third time-frequency resource and the fourth time-frequency resource). The time-frequency resources on each time unit can be predefined (for example, the communication standard predetermines the position of the time-frequency resource on a time unit), or can be configured by a high level (for example, configured by RRC signaling or MAC layer signaling), or can be dynamically indicated (for example, indicated by physical layer signaling), and the embodiment of the present application does not limit this.

[0127] Due to the serious attenuation of signal transmission in high-frequency scenarios, the network device can first perform beamforming processing on the indication information, and then send the indication information to increase the probability that the terminal device correctly receives the indication information. In addition, in order to enable terminal devices in different directions to correctly receive the indication information, the network device can also send the indication information by means of beamforming in at least two different directions. For example, the network device can send the indication information, that is, the first information described above, on the first time-frequency resource through the first beamforming direction, send the indication information on the second time-frequency resource through the second beamforming direction, send the indication information on the third time-frequency resource through the third beamforming direction, and send the indication information on the fourth time-frequency resource through the fourth beamforming direction, wherein at least two of the first beamforming, second beamforming, third beamforming, and fourth beamforming have different beamforming directions.

[0128] It should be understood that in an embodiment of the present application, the indication information sent through the first time-frequency resource, the second time-frequency resource, the third time-frequency resource and the fourth time-frequency resource may be the same or different. For example, the indication information sent through different time-frequency resources may indicate the end position of the same first downlink transmission opportunity, or may be used to indicate the end positions of different first downlink transmission opportunities. That is to say, the first information transmitted through the first time-frequency resource and the second information transmitted through the second time-frequency resource may indicate the same end position or different end positions. The embodiment of the present application is not limited to this.

[0129] Optionally, in an embodiment of the present application, the indication information is used to determine the end position of the first downlink transmission opportunity. For example, the indication information can be used to indicate the number of the end time unit of the first downlink transmission opportunity. Assuming that the end time unit of the first downlink transmission opportunity is time slot 4, the indication information can be used to indicate time slot 4. For another example, the indication information can also be used to indicate the number of remaining time units in the first downlink transmission opportunity, that is, how many time units are available for downlink transmission starting from the current time unit, so that the terminal device determines the end position of the first downlink transmission opportunity according to the number of remaining time units of the first downlink transmission opportunity.

[0130] For example, Figure 3 , on the first time unit of the first downlink transmission opportunity, the indication information can indicate 3, that is, the indication information (that is, the first information) received on the first time-frequency resource can be used to indicate 3, indicating that the number of remaining time units in the first downlink transmission opportunity is 3. If the current time unit is time slot 1, the end position of the first downlink transmission opportunity is time slot 4.

[0131] In the second time unit of the first downlink transmission opportunity, the indication information can indicate 2, that is, the indication information received on the second time-frequency resource (recorded as the second information) can be used to indicate 2, which means that the number of remaining time units in the first downlink transmission opportunity is 2. If the current time unit is time slot 2, the end position of the first downlink transmission opportunity is time slot 4.

[0132] On the third time unit of the first downlink transmission opportunity, the indication information can indicate 1, that is, the indication information received on the third time-frequency resource (recorded as the third information) can be used to indicate 1, which means that the number of remaining time units in the first downlink transmission opportunity is 1. If the current time unit is time slot 3, the end position of the first downlink transmission opportunity is time slot 4.

[0133] In the fourth time unit of the first downlink transmission opportunity, the indication information can indicate 0, that is, the indication information received on the fourth time-frequency resource (recorded as the fourth information) can be used to indicate 0, which means that the number of remaining time units in the first downlink transmission opportunity is 0. If the current time unit is time slot 4, the current time unit is the end position of the first downlink transmission opportunity.

[0134] Therefore, the terminal device can determine the end position of the first downlink transmission opportunity by detecting the indication information on any time unit in the first downlink transmission opportunity. Optionally, if the end position of the first downlink transmission opportunity determined according to the indication information on different time units is different, the end position of the first downlink transmission opportunity indicated by the most recently received indication information shall prevail.

[0135] Optionally, in some embodiments, the indication information can also be used to determine the starting position of the first downlink transmission opportunity. For example, the indication information (i.e., the first information) received on the first time unit of the first downlink transmission opportunity can be used to indicate 0, the indication information (i.e., the second information) received on the second time unit of the first downlink transmission opportunity can be used to indicate 1, the indication information (i.e., the third information) received on the third time unit of the first downlink transmission opportunity can be used to indicate 2, and the indication information (i.e., the fourth information) received on the fourth time unit of the first downlink transmission opportunity can be used to indicate 3. Therefore, the terminal device can determine the starting position of the first downlink transmission opportunity by detecting the indication information on any time unit of the first downlink transmission opportunity, and further, can perform normal data communication with the network device according to the starting position of the first downlink transmission opportunity.

[0136] Optionally, in some embodiments, the indication information can also be used to determine the position of the time unit where the indication information is located in the first downlink transmission opportunity. For example, the indication information can be used to indicate the position of the time unit where the indication information is located relative to the first time unit, or the last time unit, or the predefined Kth time unit in the first downlink transmission opportunity, wherein K is a positive integer greater than 1, so that after receiving the indication information, the terminal device can determine the position of the time unit where the indication information is located in the first downlink transmission opportunity, and then determine the starting position and / or ending position of the first downlink transmission opportunity, and further, can perform normal data communication with the network device based on the starting position and / or ending position of the first downlink transmission opportunity.

[0137] Optionally, in some embodiments, the indication information may also carry beam identification information of the beamforming used to transmit the indication information. Figure 3 , assuming that the identifiers of the beams used to transmit the corresponding indication information on the first time-frequency resource, the second time-frequency resource, the third time-frequency resource, and the fourth time-frequency resource are #0, #2, #4, and #6 respectively, then the beam identification information carried by the indication information (i.e., the first information) transmitted on the first time unit of the first downlink transmission opportunity may be #0, the beam identification information carried by the indication information (i.e., the second information) transmitted on the second time unit of the first downlink transmission opportunity may be #2, the beam identification information carried by the indication information transmitted on the third time unit of the first downlink transmission opportunity (i.e., the third downlink) may be #4, and the beam identification information carried by the indication information (i.e., the fourth information) transmitted on the fourth time unit of the first downlink transmission opportunity may be #6.

[0138] Optionally, in an embodiment of the present application, the indication information transmitted through different time-frequency resources may be information obtained after beamforming processing, for example, the first information may be information obtained after first beamforming processing, and the second information may be information obtained after second beamforming processing, wherein the beam identifier of the first beamforming and the beam identifier of the second beamforming may be the same or different, and the directions of the first beamforming and the second beamforming may be the same or different, and the embodiment of the present application is not limited to this.

[0139] Optionally, in some embodiments, the indication information may also carry identification information of the cell where the network device is located.

[0140] Optionally, in this embodiment of the present application, the first beamforming is applied to a first time unit in the first downlink transmission opportunity; or,

[0141] The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0142] The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0143] The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

[0144] That is to say, the first beamforming can be applied to the first time unit of the first downlink transmission opportunity, or to certain specific time units. The positions of the above specific time units are only examples and not limitations. The first beamforming can also be applied to time units that meet other conditions, which is not limited in the embodiments of the present application.

[0145] Optionally, in some embodiments, the second beamforming is applied to a time unit subsequent to a time unit to which the first beamforming is applied; or,

[0146] The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0147] The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0148] The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

[0149] That is to say, the second beamforming can be applied to the time unit after the time unit to which the first beamforming is applied, or to certain specific time units. The positions of the above specific time units are only examples and not limitations. The second beamforming can also be applied to time units that meet other conditions, which is not limited in the embodiments of the present application.

[0150] Optionally, in the embodiment of the present application, in order to improve the probability of correct reception of the DCI or reference signal, the network device may transmit the indication information in at least two beamforming directions. Figure 4 and Figure 5 , taking two beamforming directions as an example, this paper introduces how to realize the transmission of the indication information.

[0151] Optionally, as an embodiment, the first beamforming can be applied to each of the first p time units in the first downlink transmission opportunity, and the second beamforming can be applied to each of the last q time units in the P time units in the first downlink transmission opportunity, where p = ceil(P / 2), q = floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, ceil() represents rounding up, and floor() represents rounding down.

[0152] For example, in Figure 4 In the example, P is 5, then p is 3, and q is 2, that is, the first beamforming is applied to the first 3 time units in the first downlink transmission opportunity, and the second beamforming is applied to the last 2 time units in the first downlink transmission opportunity.

[0153] Optionally, as another embodiment, the first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where m is an odd number, and the second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where n is an even number.

[0154] For example, in Figure 5In the example, if P is 5, the first beamforming is applied to the 1st, 3rd, and 5th time units in the first downlink transmission opportunity, and the second beamforming is applied to the 2nd and 4th time units in the first downlink transmission opportunity.

[0155] Therefore, in the method for transmitting information of the embodiment of the present application, when the terminal device receives the DCI or reference signal, it can determine the starting position and / or ending position of the current downlink transmission opportunity according to the indication information carried in the DCI or reference signal, and then can perform normal data communication with the network device according to the starting position and / or ending position of the downlink transmission opportunity. In addition, in a scenario where the signal transmission is severely attenuated, the method for transmitting information of the embodiment of the present application, when sending the DCI or reference signal, can process the DCI or reference signal through beamforming in at least two directions, which is beneficial to increase the probability that the terminal devices in different directions correctly receive the DCI or reference signal.

[0156] Combination of the above Figures 2 to 5 , describes in detail the method for transmitting information according to an embodiment of the present application from the perspective of a network device. Figure 6 , a method for transmitting information according to another embodiment of the present application is described in detail from the perspective of a terminal device. It should be understood that the description on the terminal device side corresponds to the description on the network device side, and similar descriptions can be found above. To avoid repetition, they will not be repeated here.

[0157] Figure 6 is a schematic flow chart of a method 600 for transmitting data according to another embodiment of the present application. The method 600 may be Figure 1 The terminal device in the communication system shown executes, as shown in Figure 6 As shown, the method 600 is applied to a communication system including a network device and a terminal device, and the frequency domain resources on the carrier used by the communication system are frequency domain resources used based on a contention mechanism. The method 600 includes the following contents:

[0158] S601, the terminal device receives first information sent by the network device through a first time-frequency resource, where the first time-frequency resource is a time-frequency resource in a first downlink transmission opportunity;

[0159] S602, the terminal device determines that the first time-frequency resource is a downlink time-frequency resource based on the first information, the first information is also used to determine the end position of the first downlink transmission opportunity, and the first information is information obtained after the first beamforming processing.

[0160] In an embodiment of the present application, since the terminal device does not know the time and frequency resources of the network device for downlink transmission at the beginning, the terminal device obtains the first information through blind detection. After obtaining the first information, the terminal device can determine the time and frequency resources of the network device for downlink transmission based on the first information, and further, can perform normal data communication with the network device.

[0161] Optionally, in some embodiments, the first information is further used to determine at least one of the following information:

[0162] The starting position of the first downlink transmission opportunity, the position of the first time-frequency resource in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the first beamforming.

[0163] Optionally, in some embodiments, the terminal device receives, through the first time-frequency resource, the first information sent by the network device, including:

[0164] The terminal device receives the first information transmitted by the network device via a downlink control channel or a reference signal on the first time-frequency resource.

[0165] Optionally, in some embodiments, the first beamforming is applied to a first time unit in the first downlink transmission opportunity; or,

[0166] The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0167] The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0168] The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

[0169] Optionally, in some embodiments, the method further comprises:

[0170] The terminal device receives second information sent by the network device through the second time-frequency resource;

[0171] The terminal device determines that the second time-frequency resource is a downlink time-frequency resource based on the second information, and the second information is also used to determine the end position of the first downlink transmission opportunity. The second information is information obtained after the second beamforming processing. The second time-frequency resource is the time-frequency resource in the first downlink transmission opportunity. The second time-frequency resource is later in time than the first time-frequency resource.

[0172] Optionally, in some embodiments, the second information is further used to determine at least one of the following information:

[0173] The starting position of the first downlink transmission opportunity, the position of the second time-frequency resources in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the second beamforming.

[0174] Optionally, in some embodiments, the beam identifier of the first beamforming is different from the beam identifier of the second beamforming.

[0175] Optionally, in some embodiments, the second beamforming is applied to a time unit subsequent to a time unit to which the first beamforming is applied; or,

[0176] The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0177] The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0178] The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

[0179] Optionally, in some embodiments, the method 600 further includes:

[0180] The terminal device measures the channel state information of the downlink channel sent by the network device according to the starting position and / or ending position of the first downlink transmission opportunity.

[0181] Combination of the above Figures 2 to 6 , describes in detail the method embodiment of the present application, and the following is combined with Figures 7 to 10, the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0182] Figure 7 700 is a schematic block diagram of a network device according to an embodiment of the present application. The frequency domain resources on the carrier used by the communication system to which the network device 700 belongs are frequency domain resources used based on a competition mechanism. Figure 7 The network device 700 includes:

[0183] A determination module 710 is configured to determine a first time-frequency resource that can be used, where the first time-frequency resource is a time-frequency resource in a first downlink transmission opportunity;

[0184] The communication module 720 is used to send first information to the terminal device through the first time-frequency resource, and the first information is used by the terminal device to determine that the first time-frequency resource is a downlink time-frequency resource, and the first information is also used to determine the end position of the first downlink transmission opportunity. The first information is information obtained after the first beamforming processing.

[0185] Optionally, in some embodiments, the first information is further used to determine at least one of the following information:

[0186] The starting position of the first downlink transmission opportunity, the position of the first time-frequency resource in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the first beamforming.

[0187] Optionally, in some embodiments, the communication module 720 is specifically used for:

[0188] The first information is sent to the terminal device via a downlink control channel or a reference signal on the first time-frequency resource.

[0189] Optionally, in some embodiments, the first beamforming is applied to a first time unit in the first downlink transmission opportunity; or,

[0190] The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0191] The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0192] The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

[0193] Optionally, in some embodiments, the communication module 720 is further used for:

[0194] The second information is sent to the terminal device via the second time-frequency resource, the second information is used by the terminal device to determine that the second time-frequency resource is a downlink time-frequency resource, and the second information is also used to determine the end position of the first downlink transmission opportunity, the second information is information obtained after the second beamforming processing, the second time-frequency resource is the time-frequency resource in the first downlink transmission opportunity, and the second time-frequency resource is later in time than the first time-frequency resource.

[0195] Optionally, in some embodiments, the second information is further used to determine at least one of the following information:

[0196] The starting position of the first downlink transmission opportunity, the position of the second time-frequency resources in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the second beamforming.

[0197] Optionally, in some embodiments, the beam identifier of the first beamforming is different from the beam identifier of the second beamforming.

[0198] Optionally, in some embodiments, the second beamforming is applied to a time unit subsequent to a time unit to which the first beamforming is applied; or,

[0199] The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0200] The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0201] The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

[0202] Specifically, the network device 700 may correspond to (for example, may be configured in or may itself be) the network device described in the above method 200, and each module or unit in the network device 700 is respectively used to execute each action or processing process performed by the network device in the above method 200. Here, in order to avoid repetition, its detailed description is omitted.

[0203] Figure 8 is a schematic block diagram of a terminal device according to an embodiment of the present application. The frequency domain resources on the carrier used by the communication system to which the terminal device belongs are frequency domain resources used based on a competition mechanism. Figure 8 The terminal device 800 includes:

[0204] The communication module 810 is configured to receive first information sent by a network device through a first time-frequency resource, where the first time-frequency resource is a time-frequency resource in a first downlink transmission opportunity;

[0205] The determination module 820 is used to determine that the first time-frequency resource is a downlink time-frequency resource according to the first information. The first information is also used to determine the end position of the first downlink transmission opportunity. The first information is information obtained after the first beamforming processing.

[0206] Optionally, in some embodiments, the first information is further used to determine at least one of the following information:

[0207] The starting position of the first downlink transmission opportunity, the position of the first time-frequency resource in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the first beamforming.

[0208] Optionally, in some embodiments, the communication module 810 is specifically used for:

[0209] Receive the first information transmitted by the network device on the first time-frequency resource via a downlink control channel or a reference signal.

[0210] Optionally, in some embodiments, the first beamforming is applied to a first time unit in the first downlink transmission opportunity; or,

[0211] The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0212] The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0213] The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

[0214] Optionally, in some embodiments, the communication module 810 is further used for:

[0215] Receiving second information sent by the network device through a second time-frequency resource;

[0216] The determining module 820 is further configured to:

[0217] According to the second information, it is determined that the second time-frequency resource is a downlink time-frequency resource, and the second information is also used to determine the end position of the first downlink transmission opportunity. The second information is information obtained after the second beamforming processing. The second time-frequency resource is the time-frequency resource in the first downlink transmission opportunity. The second time-frequency resource is later in time than the first time-frequency resource.

[0218] Optionally, in some embodiments, the second information is further used to determine at least one of the following information:

[0219] The starting position of the first downlink transmission opportunity, the position of the second time-frequency resources in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the second beamforming.

[0220] Optionally, in some embodiments, the beam identifier of the first beamforming is different from the beam identifier of the second beamforming.

[0221] Optionally, in some embodiments, the second beamforming is applied to a time unit subsequent to a time unit to which the first beamforming is applied; or,

[0222] The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or

[0223] The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or

[0224] The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

[0225] Optionally, in some embodiments, the communication module 810 is further used for:

[0226] The channel state information of the downlink channel sent by the network device is measured according to the starting position and / or the ending position of the first downlink transmission opportunity.

[0227] Specifically, the terminal device 800 may correspond to (for example, may be configured in or may itself be) the terminal device described in the above method 600, and each module or unit in the terminal device 800 is respectively used to execute each action or processing process performed by the terminal device in the above method 600. Here, in order to avoid repetition, its detailed description is omitted.

[0228] like Fig. 9 As shown, the embodiment of the present application further provides a network device 900, which can be Figure 7 The network device 700 in Figure 2 The network device 900 includes: an input interface 910, an output interface 920, a processor 930 and a memory 940, and the input interface 910, the output interface 920, the processor 930 and the memory 940 can be connected through a bus system. The memory 940 is used to store programs, instructions or codes. The processor 930 is used to execute the programs, instructions or codes in the memory 940 to control the input interface 910 to receive signals, control the output interface 920 to send signals, and complete the operations in the aforementioned method embodiment.

[0229] It should be understood that in the embodiment of the present application, the processor 930 may be a central processing unit (CPU), and the processor 930 may also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0230] The memory 940 may include a read-only memory and a random access memory, and provide instructions and data to the processor 930. A portion of the memory 940 may also include a nonvolatile random access memory. For example, the memory 940 may also store information on the device type.

[0231] In the implementation process, the contents of the above method can be completed by the hardware integrated logic circuit in the processor 930 or the instructions in the form of software. The contents of the method disclosed in the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in the processor for execution. The software module can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 940, and the processor 930 reads the information in the memory 940 and completes the contents of the above method in combination with its hardware. To avoid repetition, it is not described in detail here.

[0232] In a specific implementation, Figure 7 The determining module 710 included in the network device 700 can be used Fig. 9 The processor 930 implements, Figure 7 The communication module 720 included in the network device 700 can be used Fig. 9 The input interface 910 and the output interface 920 are implemented.

[0233] like Fig.10 As shown, the embodiment of the present application further provides a terminal device 1000, and the terminal device 1000 can be Figure 8 The terminal device 800 in Figure 6The terminal device 1000 includes: an input interface 1010, an output interface 1020, a processor 1030 and a memory 1040, and the input interface 1010, the output interface 1020, the processor 1030 and the memory 1040 can be connected through a bus system. The memory 1040 is used to store programs, instructions or codes. The processor 1030 is used to execute the programs, instructions or codes in the memory 1040 to control the input interface 1010 to receive signals, control the output interface 1020 to send signals, and complete the operations in the above method embodiments.

[0234] It should be understood that in the embodiment of the present application, the processor 1030 may be a central processing unit (CPU), and the processor 1030 may also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0235] The memory 1040 may include a read-only memory and a random access memory, and provide instructions and data to the processor 1030. A portion of the memory 1040 may also include a non-volatile random access memory. For example, the memory 1040 may also store information on the device type.

[0236] In the implementation process, the contents of the above method can be completed by the hardware integrated logic circuit in the processor 1030 or the instructions in the form of software. The contents of the method disclosed in the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in the processor for execution. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 1040, and the processor 1030 reads the information in the memory 1040 and completes the contents of the above method in combination with its hardware. To avoid repetition, it is not described in detail here.

[0237] In a specific implementation, Figure 8 The determination module 820 included in the terminal device 800 can be used Fig.10 The processor 1030 implements, Figure 8 The communication module 810 included in the terminal device 800 can be used Fig.10 The input interface 1010 and the output interface 1020 are implemented.

[0238] The embodiment of the present application also provides a computer-readable storage medium, which stores one or more programs, wherein the one or more programs include instructions, which, when executed by a portable electronic device including a plurality of application programs, enable the portable electronic device to execute Figures 2 to 6 The method of the illustrated embodiment.

[0239] The present application also provides a computer program, which includes instructions. When the computer program is executed by a computer, the computer can execute Figures 2 to 6 The corresponding process of the method of the embodiment shown.

[0240] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0241] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0242] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0243] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0244] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0245] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0246] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for transmitting information, characterized in that: A communication system applied to a new wireless technology, the communication system comprising a network device and a terminal device, the frequency domain resources on a carrier used by the communication system being frequency domain resources used based on a contention mechanism, the method comprising: The network device determines a first time-frequency resource that can be used, where the first time-frequency resource is a time-frequency resource in a first downlink transmission opportunity; The network device sends first information to the terminal device through the first time-frequency resource, the first information is used by the terminal device to determine that the first time-frequency resource is a downlink time-frequency resource, and the first information is also used to determine the end position of the first downlink transmission opportunity, and the first information is information obtained after the first beamforming process. The first information includes downlink control information, The network device sends first information to the terminal device through the first time-frequency resource, including: The network device sends the first information to the terminal device through a physical downlink control channel on the first time-frequency resource.

2. The method according to claim 1, characterized in that The first information is also used to determine at least one of the following information: The starting position of the first downlink transmission opportunity, the position of the first time-frequency resource in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the first beamforming.

3. The method according to any one of claims 1 to 2, characterized in that The first beamforming is applied to a first time unit in the first downlink transmission opportunity; or, The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

4. The method according to any one of claims 1 to 2, characterized in that The method further comprises: The network device sends second information to the terminal device through a second time-frequency resource, the second information is used by the terminal device to determine that the second time-frequency resource is a downlink time-frequency resource, and the second information is also used to determine the end position of the first downlink transmission opportunity, the second information is information obtained after a second beamforming process, the second time-frequency resource is a time-frequency resource in the first downlink transmission opportunity, and the second time-frequency resource is later in time than the first time-frequency resource.

5. The method according to claim 4, characterized in that The second information is further used to determine at least one of the following information: The starting position of the first downlink transmission opportunity, the position of the second time-frequency resources in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the second beamforming.

6. The method according to claim 5, characterized in that The beam identifier of the first beamforming is different from the beam identifier of the second beamforming.

7. The method according to any one of claims 5 to 6, characterized in that The second beamforming is applied to a time unit subsequent to the time unit to which the first beamforming is applied; or, The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

8. A method for transmitting information, characterized in that: A communication system applied to a new wireless technology, the communication system comprising a network device and a terminal device, the frequency domain resources on a carrier used by the communication system being frequency domain resources used based on a contention mechanism, the method comprising: The terminal device receives the first information sent by the network device through the first time-frequency resource, where the first time-frequency resource is the time-frequency resource in the first downlink transmission opportunity; The terminal device determines, according to the first information, that the first time-frequency resource is a downlink time-frequency resource, the first information is also used to determine an end position of the first downlink transmission opportunity, and the first information is information obtained after a first beamforming process. The first information includes downlink control information, The terminal device receives the first information sent by the network device through the first time-frequency resource, including: The terminal device receives the first information sent by the network device through the physical downlink control channel on the first time-frequency resource.

9. The method according to claim 8, characterized in that The first information is also used to determine at least one of the following information: The starting position of the first downlink transmission opportunity, the position of the first time-frequency resource in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the first beamforming.

10. The method according to any one of claims 8 to 9, characterized in that The first beamforming is applied to a first time unit in the first downlink transmission opportunity; or, The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

11. The method according to any one of claims 8 to 9, characterized in that The method further comprises: The terminal device receives second information sent by the network device through the second time-frequency resource; The terminal device determines that the second time-frequency resource is a downlink time-frequency resource based on the second information, and the second information is also used to determine the end position of the first downlink transmission opportunity. The second information is information obtained after the second beamforming processing. The second time-frequency resource is the time-frequency resource in the first downlink transmission opportunity. The second time-frequency resource is later in time than the first time-frequency resource.

12. The method according to claim 11, characterized in that The second information is further used to determine at least one of the following information: The starting position of the first downlink transmission opportunity, the position of the second time-frequency resources in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the second beamforming.

13. The method according to claim 12, characterized in that The beam identifier of the first beamforming is different from the beam identifier of the second beamforming.

14. The method according to any one of claims 12 to 13, characterized in that The second beamforming is applied to a time unit subsequent to the time unit to which the first beamforming is applied; or, The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

15. The method according to any one of claims 8 to 9 and 12 to 13, characterized in that The method further comprises: The terminal device measures the channel state information of the downlink channel sent by the network device according to the starting position and / or ending position of the first downlink transmission opportunity.

16. A network device, characterized in that: The network device is applied to a communication system in a new wireless technology, and communicates through frequency domain resources on a carrier based on a contention mechanism used by the communication system, and the network device includes: A determination module, configured to determine a first time-frequency resource that can be used, where the first time-frequency resource is a time-frequency resource in a first downlink transmission opportunity; a communication module, configured to send first information to a terminal device through the first time-frequency resource, wherein the first information is used by the terminal device to determine that the first time-frequency resource is a downlink time-frequency resource, and the first information is also used to determine an end position of the first downlink transmission opportunity, and the first information is information obtained after a first beamforming process. The first information includes downlink control information, The communication module is specifically used for: The first information is sent to the terminal device via a physical downlink control channel on the first time-frequency resource.

17. The network device according to claim 16, characterized in that: The first information is also used to determine at least one of the following information: The starting position of the first downlink transmission opportunity, the position of the first time-frequency resource in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the first beamforming.

18. The network device according to any one of claims 16 to 17, characterized in that: The first beamforming is applied to a first time unit in the first downlink transmission opportunity; or, The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

19. The network device according to any one of claims 16 to 17, characterized in that: The communication module is also used for: The second information is sent to the terminal device via the second time-frequency resource, the second information is used by the terminal device to determine that the second time-frequency resource is a downlink time-frequency resource, and the second information is also used to determine the end position of the first downlink transmission opportunity, the second information is information obtained after the second beamforming processing, the second time-frequency resource is the time-frequency resource in the first downlink transmission opportunity, and the second time-frequency resource is later in time than the first time-frequency resource.

20. The network device according to claim 19, characterized in that: The second information is further used to determine at least one of the following information: The starting position of the first downlink transmission opportunity, the position of the second time-frequency resources in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the second beamforming.

21. The network device according to claim 20, characterized in that: The beam identifier of the first beamforming is different from the beam identifier of the second beamforming.

22. The network device according to any one of claims 20 to 21, characterized in that: The second beamforming is applied to a time unit subsequent to the time unit to which the first beamforming is applied; or, The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

23. A terminal device, characterized in that: The terminal device is applied to a communication system in a new wireless technology, and communicates through frequency domain resources on a carrier based on a contention mechanism used by the communication system, and the terminal device includes: A communication module, configured to receive first information sent by a network device through a first time-frequency resource, where the first time-frequency resource is a time-frequency resource in a first downlink transmission opportunity; a determination module, configured to determine, according to the first information, that the first time-frequency resource is a downlink time-frequency resource, the first information being further used to determine an end position of the first downlink transmission opportunity, the first information being information obtained after first beamforming processing, The first information includes downlink control information, The communication module is specifically used for: Receive the first information sent by the network device through a physical downlink control channel on the first time-frequency resource.

24. The terminal device according to claim 23, characterized in that: The first information is also used to determine at least one of the following information: The starting position of the first downlink transmission opportunity, the position of the first time-frequency resource in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the first beamforming.

25. The terminal device according to any one of claims 23 to 24, characterized in that: The first beamforming is applied to a first time unit in the first downlink transmission opportunity; or, The first beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or The first beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or The first beamforming is applied to at least one time unit among the first p time units in the first downlink transmission opportunity, p=ceil(P / 2), wherein P represents the number of time units included in the first downlink transmission opportunity, and ceil() represents rounding up.

26. The terminal device according to any one of claims 23 to 24, characterized in that: The communication module is also used for: Receiving second information sent by the network device through a second time-frequency resource; The determining module is also used for: According to the second information, it is determined that the second time-frequency resource is a downlink time-frequency resource, and the second information is also used to determine the end position of the first downlink transmission opportunity. The second information is information obtained after the second beamforming processing. The second time-frequency resource is the time-frequency resource in the first downlink transmission opportunity. The second time-frequency resource is later in time than the first time-frequency resource.

27. The terminal device according to claim 26, characterized in that: The second information is further used to determine at least one of the following information: The starting position of the first downlink transmission opportunity, the position of the second time-frequency resources in the first downlink transmission opportunity, the number of remaining time units in the first downlink transmission opportunity, the identifier of the cell where the network device is located, and the beam identifier of the second beamforming.

28. The terminal device according to claim 27, characterized in that: The beam identifier of the first beamforming is different from the beam identifier of the second beamforming.

29. The terminal device according to any one of claims 27 to 28, characterized in that: The second beamforming is applied to a time unit subsequent to the time unit to which the first beamforming is applied; or, The second beamforming is applied to the mth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and m is an odd number; or The second beamforming is applied to the nth time unit among P time units in the first downlink transmission opportunity, where P represents the number of time units included in the first downlink transmission opportunity, P is a positive integer, and n is an even number; or The second beamforming is applied to at least one time unit among the last q time units in the first downlink transmission opportunity, q=floor(P / 2), where P represents the number of time units included in the first downlink transmission opportunity, and floor() represents rounding down.

30. The terminal device according to any one of claims 23 to 24 and 27 to 28, characterized in that: The communication module is also used for: The channel state information of the downlink channel sent by the network device is measured according to the starting position and / or the ending position of the first downlink transmission opportunity.

31. A network device, characterized in that: The network device comprises: an input interface, an output interface, a processor and a memory, wherein: The input interface, the output interface, the processor and the memory are connected via a bus system; The memory is used to store a computer program that can be run on the processor; The processor is used to execute the computer program to control the input interface to receive signals and control the output interface to send signals, so that the network device performs the steps of the method described in any one of claims 1 to 7.

32. A terminal device, characterized in that: The terminal device includes: an input interface, an output interface, a processor and a memory, wherein: The input interface, the output interface, the processor and the memory are connected via a bus system; The memory is used to store a computer program that can be run on the processor; The processor is used to run the computer program to control the input interface to receive signals and control the output interface to send signals, so that the terminal device executes the steps of the method described in any one of claims 8 to 15.

33. A computer storage medium, characterized in that The computer storage medium stores computer executable instructions, and when the computer executable instructions are executed, the steps of the method according to any one of claims 1 to 15 are implemented.

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