WO2023130467A1 - Wireless communication method, terminal device and network device - Google Patents

Abstract

Provided are a wireless communication method, a terminal device and a network device. The method comprises: a terminal device receiving first indication information, wherein the first indication information is used for determining whether to perform a channel access procedure before a first physical channel is transmitted, or is used for determining a channel access type of the first physical channel; and the terminal device transmitting the first physical channel according to a first resource and the first indication information, wherein the first resource is used for transmitting the first physical channel. By means of the technical solution provided in the embodiments of the present application, during a random access procedure, the terminal device determines, according to the first indication information, whether to perform the channel access process before the first physical channel is transmitted and/or determines the type of channel access performed before the first physical channel is transmitted. By means of allowing the terminal device to transmit the first physical channel under a certain condition without performing channel access, the transmission probability of the first physical channel during the random access procedure can be improved when it is ensured that the use of a shared spectrum is fair and rational.

Description

Wireless communication method, terminal device and network device technical field

The present application relates to the field of communication technologies, and more specifically, to a wireless communication method, terminal equipment, and network equipment.

Background technique

In some frequency bands (such as 52.6GHz-71GHz or 71GHz-114.25GHz), terminal devices need to follow the principle of listen before talk (LBT) to communicate. LBT may also be referred to as a channel access procedure. The channel access process may reduce the transmission probability of a physical channel (such as a physical random access channel (physical random access channel, PRACH) and/or a physical channel corresponding to message A (MsgA)) in the random access process.

Contents of the invention

In view of the above problems, the present application provides a wireless communication method, a terminal device and a network device.

In a first aspect, a wireless communication method is provided, including: a terminal device receives first indication information, and the first indication information is used to determine whether to perform a channel access process before transmission on a first physical channel, or the The first indication information is used to determine the channel access type of the first physical channel; the terminal device transmits the first physical channel according to the first resource and the first indication information, where the first resource uses for transmitting the first physical channel.

In a second aspect, a wireless communication method is provided, including: a network device sending first indication information to a terminal device, where the first indication information is used to determine whether to perform a channel access procedure before transmission on a first physical channel, or The first indication information is used to determine the channel access type of the first physical channel; the network device receives the first physical channel according to the first resource and the first indication information, wherein the first Resources are used to transmit the first physical channel.

In a third aspect, a terminal device is provided, including: a receiving module, configured to receive first indication information, and the first indication information is used to determine whether to perform a channel access process before transmission of the first physical channel, or the The first indication information is used to determine the channel access type of the first physical channel; the transmission module is configured to transmit the first physical channel according to the first resource and the first indication information, wherein the first resource used to transmit the first physical channel.

In a fourth aspect, a network device is provided, including: a sending module, configured to send first indication information to a terminal device, where the first indication information is used to determine whether to perform a channel access process before transmission on a first physical channel, Or the first indication information is used to determine the channel access type of the first physical channel; the receiving module is configured to receive the first physical channel according to the first resource and the first indication information, wherein the The first resource is used to transmit the first physical channel.

According to a fifth aspect, a terminal device is provided, including a memory and a processor, the memory is used to store a program, and the processor is used to invoke the program in the memory to execute the method according to the first aspect.

According to a sixth aspect, a network device is provided, including a memory and a processor, the memory is used to store a program, and the processor is used to invoke the program in the memory to execute the method described in the second aspect.

In a seventh aspect, an apparatus is provided, including a processor, configured to call a program from a memory to execute the method described in the first aspect.

In an eighth aspect, an apparatus is provided, including a processor, configured to call a program from a memory to execute the method described in the second aspect.

A ninth aspect provides a chip, including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the first aspect.

In a tenth aspect, a chip is provided, including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the second aspect.

In an eleventh aspect, a computer-readable storage medium is provided, on which a program is stored, and the program causes a computer to execute the method described in the first aspect.

In a twelfth aspect, a computer-readable storage medium is provided, on which a program is stored, and the program causes a computer to execute the method described in the second aspect.

A thirteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the first aspect.

A fourteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the second aspect.

A fifteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the first aspect.

A sixteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the second aspect.

Through the technical solution provided by the embodiment of this application, in the random access process, the terminal device determines the first physical channel for transmission according to the first indication information (that is, the physical channel in the random access process, for example, it can be PRACH or MsgA corresponding Whether to perform a channel access process and/or determine the type of channel access performed before transmitting the first physical channel), by allowing the terminal device to transmit the first physical channel without performing channel access under certain conditions, The transmission probability of the first physical channel in the random access process can be increased while ensuring fair and reasonable use of the shared frequency spectrum.

Description of drawings

FIG. 1 is a system architecture diagram of a communication system to which an embodiment of the present application can be applied.

Fig. 2 is a flowchart of a four-step random access process.

Fig. 3 is a flowchart of a two-step random access process.

FIG. 4 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.

FIG. 5 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.

FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of the present application.

Fig. 7 is a schematic structural diagram of the device provided by the embodiment of the present application.

Detailed ways

Communication System Architecture

The technical solution of the embodiment of the present application can be applied to various communication systems, for example: global system of mobile communication (global system of mobile communication, GSM) system, code division multiple access (code division multiple access, CDMA) system, broadband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, advanced long term evolution (advanced long term evolution, LTE-A) system , new radio (new radio, NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, NTN system, universal mobile telecommunications system (UMTS), wireless local area network (wireless local area networks, WLAN), wireless fidelity (wireless fidelity, WiFi), fifth-generation communication (5th-generation, 5G) system or other communication systems, such as future communication systems, such as the sixth-generation mobile communication system, and satellite communication systems.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, the mobile communication system will not only support traditional communication, but 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), inter-vehicle (vehicle to vehicle, V2V) communication, or vehicle networking (vehicle to everything, V2X) communication, etc., the embodiments of the present application can also be applied to these communication systems.

The communication system in the embodiment of the present application may be applied to a carrier aggregation (carrier aggregation, CA) scenario, may also be applied to a dual connectivity (dual connectivity, DC) scenario, and may also be applied to an independent (standalone, SA) network deployment scenario.

The communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to a licensed spectrum, wherein the licensed spectrum can also be Considered a dedicated spectrum.

The embodiments of the present application may be applied to an NTN system, and may also be applied to a terrestrial communication network (terrestrial networks, TN) system. By way of example and not limitation, the NTN system includes an NR-based NTN system and an IoT-based NTN system.

Embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be called user equipment (user equipment, UE), access terminal, user unit, user station, mobile station, mobile station (mobile station, MS), mobile terminal (mobile Terminal, MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

In the embodiment of the present application, the terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as NR networks The terminal equipment in the network, or the terminal equipment in the public land mobile network (public land mobile network, PLMN) network that will evolve in the future, etc.

In this embodiment of the present application, a terminal device may be a device that provides voice and/or data connectivity to users, and may be used to connect people, things and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like. The terminal device in the embodiment of the present application can be mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc. Optionally, a terminal device can be used to act as a base station. For example, a terminal device may act as a scheduling entity, which provides sidelink signals between terminal devices in V2X or D2D, etc. For example, a cell phone and an automobile communicate with each other using sidelink signals. Cellular phones and smart home devices communicate without relaying communication signals through base stations.

In the embodiment of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).

In the embodiment of the present application, the terminal device may be a mobile phone, a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home. The terminal equipment involved in the embodiments of the present application may also be referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. Terminal equipment can also be fixed or mobile.

As an example but not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, 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 clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

The network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be called an access network device or a wireless access network device, for example, the network device may be a base station. The network device in this embodiment of the present application may refer to a radio access network (radio access network, RAN) node (or device) that connects a terminal device to a wireless network. The base station can broadly cover various names in the following, or replace with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), primary station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node , wireless node, access point (access piont, AP), transmission node, transceiver node, base band unit (base band unit, BBU), remote radio unit (remote radio unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning nodes, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, modem or chip used to be set in the aforementioned equipment or device. The base station can also be a mobile switching center, a device that undertakes the function of a base station in D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication, and a device in a 6G network. Network-side equipment, equipment that assumes base station functions in future communication systems, etc. Base stations can support networks of the same or different access technologies. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.

Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to serve as a device in communication with another base station.

In some deployments, the network device in this embodiment of the present application may refer to a CU or a DU, or, the network device includes a CU and a DU. A gNB may also include an AAU.

Network equipment and terminal equipment can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the air. In the embodiment of the present application, the scenarios where the network device and the terminal device are located are not limited.

As an example but not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments of the present application, the network device may be a satellite or a balloon station. For example, the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc. In some embodiments of the present application, the network device may also be a base station installed on land, in water, and other locations.

In this embodiment of the present application, the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell, where the small cell may include: a metro cell, a micro cell, a pico cell ( pico cell), femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

Exemplarily, FIG. 1A is a schematic structural diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1A , a communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.

FIG. 1A exemplarily shows one network device and two terminal devices. In some embodiments of the present application, the communication system 100 may include multiple network devices and each network device may include other numbers of terminals within the coverage area. The device is not limited in the embodiment of this application.

Exemplarily, FIG. 1B is a schematic structural diagram of another communication system provided by an embodiment of the present application. Referring to FIG. 1B , a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102 . The network formed between the terminal device 1101 and the satellite 1102 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 1B , the satellite 1102 may function as a base station, and the terminal device 1101 and the satellite 1102 may communicate directly. Under the system architecture, the satellite 1102 can be referred to as a network device. In some embodiments of the present application, the communication system may include multiple network devices 1102, and the coverage of each network device 1102 may include other numbers of terminal devices, which is not limited in this embodiment of the present application.

Exemplarily, FIG. 1C is a schematic structural diagram of another communication system provided by an embodiment of the present application. Referring to FIG. 1C , it includes a terminal device 1201 , a satellite 1202 and a base station 1203 , wireless communication can be performed between the terminal device 1201 and the satellite 1202 , and communication can be performed between the satellite 1202 and the base station 1203 . The network formed among the terminal equipment 1201, the satellite 1202 and the base station 1203 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 1C , the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202 . Under this system architecture, the base station 1203 may be called a network device. In some embodiments of the present application, the communication system may include multiple network devices 1203, and the coverage of each network device 1203 may include other numbers of terminal devices, which is not limited in this embodiment of the present application.

It should be noted that Fig. 1A-Fig. 1C are only illustrations of the systems to which this application is applicable. Of course, the methods shown in the embodiments of this application can also be applied to other systems, for example, 5G communication systems, LTE communication systems, etc. , which is not specifically limited in this embodiment of the present application.

In some embodiments of the present application, the wireless communication system shown in FIG. 1A-FIG. 1C may further include a mobility management entity (mobility management entity, MME), an access and mobility management function (access and mobility management function, AMF) and other network entities, which are not limited in this embodiment of the present application.

It should be understood that a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in FIG. 1A as an example, the communication equipment may include a network equipment 110 and a terminal equipment 120 with communication functions, and the network equipment 110 and the terminal equipment 120 may be the specific equipment described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.

The "configuration" in this embodiment of the present application may include configuring by at least one of system messages, radio resource control (radio resource control, RRC) signaling, and media access control element (MAC CE) .

In some embodiments of the present application, "predefined" or "preset" may be pre-saved in devices (for example, including terminal devices and network devices) with corresponding codes, tables or other methods that can be used to indicate related information implementation, and the present application does not limit the specific implementation manner. For example, the predefined ones may refer to those defined in the protocol.

In some embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, which is not limited in the present application.

For ease of understanding, some relevant technical knowledge involved in the embodiments of the present application is introduced first. The following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as optional solutions, and all of them belong to the protection scope of the embodiments of the present application. The embodiment of the present application includes at least part of the following content.

high frequency communication

With the evolution of communication systems, some communication systems (such as NR systems) may include new frequency bands. For example, 52.6GHz–71GHz or 71GHz–114.25GHz. The new frequency band may include licensed spectrum or unlicensed spectrum. In other words, the new frequency band includes dedicated spectrum and shared spectrum.

The unlicensed spectrum is the spectrum allocated by the country and region that can be used for radio equipment communication. This spectrum is usually considered as a shared spectrum, that is, communication equipment in different communication systems can use this spectrum as long as they meet the regulatory requirements set by the country or region on this spectrum, and there is no need to apply for a dedicated spectrum authorization from the government.

In order to allow various communication systems that use unlicensed spectrum for wireless communication to coexist friendly on this spectrum, some countries or regions have stipulated regulatory requirements that must be met when using unlicensed spectrum. For example, the communication device follows the "LBT" principle, or in other words, the communication device needs to perform a channel access process. That is, before a communication device transmits a signal on an unlicensed spectrum channel, it needs to perform channel sensing (sensing), and only when the channel sensing is successful, the communication device can perform signal transmission. If the communication device fails to monitor the channel on the channel of the unlicensed frequency spectrum, the communication device cannot perform signal transmission.

Channel monitoring success may also be referred to as LBT success or channel monitoring idle. For example, the energy detection performed on the channel in the listening time slot is lower than the energy detection threshold.

Channel listening failure may also be referred to as LBT failure or channel listening busy. For example, the energy detection performed on the channel in the listening time slot is higher than or equal to the energy detection threshold.

The subcarrier spacing considered in the new frequency band may be larger than the subcarrier spacing supported by the existing NR system. The currently supported subcarrier spacing includes at least one of the following: 120kHz, 480kHz, and 960kHz.

Four-step random access process

In some communication systems (such as NR systems), the four-step random access procedure is also called Type-1 random access procedure (Type-1 random access procedure). As shown in Figure 2, the four-step random access process includes the following steps.

Step 1: The terminal device sends a random access preamble (or called message 1 (Msg1)) to the network device.

Step 2: The terminal device detects the random access response (random access response, RAR, or message 2 (Msg2)) sent by the network device.

If the terminal device detects the RAR corresponding to Msg1 within the RAR window, the terminal device transmits message 3 (Msg3) according to the RAR.

The RAR is associated with a random access preamble identifier (RAPID).

One or more of the following information may be included in the RAR: RAPID, timing advance command (timing advance command, TAC), temporary cell radio network temporary identifier (temporary cell radio network temporary identifier, TC-RNTI), uplink authorization ( UL grant, also known as RAR UL grant).

Wherein, the RAR UL grant may include one or more of the following information: frequency domain frequency hopping flag (frequency hopping flag), physical uplink shared channel (physical uplink shared channel, PUSCH) frequency domain resource allocation (PUSCH frequency resource allocation ), PUSCH time resource allocation (PUSCH time resource allocation), modulation and coding scheme (modulation and coding scheme, MCS), PUSCH transmission power control (transmit power control, TPC) command (TPC command for PUSCH), channel state information ( channel state information (CSI) request (CSI request).

Wherein, for the shared frequency spectrum, the RAR UL grant also includes the following information: channel access scheme indication (ChannelAccess-CPext).

If the terminal device does not detect the RAR corresponding to Msg1 within the RAR window, the terminal device re-initiates the random access process (for example, the terminal device retransmits Msg1).

Step 3: The terminal device sends a PUSCH, or Msg3PUSCH, to the network device according to the received RAR.

The version number of the redundancy version (redundancy version, RV) used by the Msg3PUSCH transmitted according to the uplink authorization in the RAR is 0.

The third step allows hybrid automatic repeat reQuest (HARQ) retransmission. That is, after sending the PUSCH to the network device according to the RAR, the terminal device may receive TC-RNTI scrambled downlink control information (DCI) format 0_0 to schedule retransmission of the PUSCH.

The DCI format 0_0 of the TC-RNTI scrambling code may include one or more of the following information: uplink and downlink DCI indication (1 bit), frequency domain resource allocation (the size is determined according to the UL bandwidth part (bandwidth part, BWP) bandwidth) , time domain resource allocation (4 bits), frequency domain frequency hopping indication (1 bit), MCS (5 bits), new data indication (1 bit reserved), RV version (2 bits), HARQ process number (4 bits reserved reserved), PUSCH power control command word (2 bits), UL/supplementary uplink (supplementary uplink, SUL) carrier indication (1 bit).

For shared frequency spectrum, DCI format 0_0 may also include the following information: channel access scheme indication (2 bits).

Step 4: The terminal device receives a physical downlink control channel (physical downlink control channel, PDSCH) including a contention resolution message sent by the network device, and the PDSCH may also be called message 4 (Msg4).

In the fourth step, the terminal device can receive the PDSCH including the contention resolution message sent by the network device according to the TC-RNTI or C-RNTI scrambled DCI format 1_0.

The fourth step allows HARQ retransmission, that is, after receiving the TC-RNTI or C-RNTI scrambled DCI format 1_0, if the terminal device fails to receive the corresponding PDSCH, the terminal device can physically uplink the DCI format 1_0 Negative acknowledgment (negative acknowledgment, NACK) information is fed back on control channel (physical uplink control channel, PUCCH) resources.

The DCI format 1_0 of TC-RNTI or C-RNTI scrambling code can include one or more of the following information: uplink and downlink DCI indication (1 bit), frequency domain resource allocation (the size is determined according to DL BWP bandwidth), time domain Resource allocation (4 bits), virtual resource block (virtual resource block, VRB) to physical resource block (physical resource block, PRB) mapping (1 bit), MCS (5 bits), new data indication (1 bit), RV version (2 bits), HARQ process number (4 bits), downlink assignment indicator (DAI) (2 bits reserved), PUCCH power control command word (2 bits), PUCCH resource indication (3 bits), PDSCH- to-HARQ feedback time indication (3 bits).

For the shared frequency spectrum, DCI format 1_0 also includes the following information: channel access scheme indication (2 bits).

After receiving the TC-RNTI or C-RNTI scrambled DCI format 1_0, if the terminal device successfully receives the corresponding PDSCH, the random access process is completed.

Two-step random access procedure

In some communication systems (such as NR systems), the two-step random access procedure is also called Type-2 random access procedure (Type-2 random access procedure). As shown in Figure 3, the two-step random access process includes the following steps.

Step 1 (step A in FIG. 3 ): the terminal device sends a random access preamble and PUSCH (or called message A (MsgA)) to the network device.

The second step (step B in FIG. 3 ): the terminal device detects the random access response (or called MsgB) sent by the network device. MsgB includes two types of RAR, one is successful RAR (successRAR), and the other is fallback RAR (fallbackRAR).

Case 1: If the terminal device detects the successRAR corresponding to MsgA in the RAR window, since the successRAR includes a contention resolution message, the terminal device can send an acknowledgment (acknowledgment, ACK) message to the network device, and the random access process is completed (as shown in Figure 3 left as shown in the figure).

SuccessRAR may include one or more of the following information: UE contention resolution ID (UE contention resolution identity), TPC, HARQ feedback timing indicator (HARQ feedback timing indicator), PUCCH resource indicator (PUCCH resource indicator), timing advance command (timing advance command, TAC), cell radio network temporary identifier (C-RNTI).

For the shared frequency spectrum, the following information is also included in the successRAR: channel access plan indication.

Case 2: If the terminal device detects the fallbackRAR corresponding to MsgA in the RAR window, the terminal device can transmit Msg3 according to the fallbackRAR. In other words, the terminal device falls back to the four-step random access process (wherein, the third step and the fourth step are the same as the third step and the fourth step in the four-step random access process, as shown in the right figure of Figure 3 );

fallbackRAR associated random access preamble ID.

fallbackRAR includes one or more of the following information: TAC, TC-RNTI, UL grant (also known as RAR UL grant).

Wherein, the RAR UL grant may include one or more of the following information: frequency domain frequency hopping flag, PUSCH frequency domain resource allocation, PUSCH time domain resource allocation, MCS, PUSCH TPC command, CSI request.

Among them, for the shared frequency spectrum, the RAR UL grant also includes the following information: channel access scheme indication.

If the terminal device does not detect successRAR or fallbackRAR within the RAR window, the terminal device re-initiates a two-step or four-step random access process (for example, the terminal device retransmits MsgA or Msg1).

Random Access Resource Configuration

In some communication systems (such as NR systems), random access resources may include PRACH and/or MsgA resources. The PRACH or MsgA resource configuration may include cell-common PRACH or MsgA resource configuration and/or dedicated PRACH or MsgA resource configuration. PRACH and/or MsgA resource configuration can be used for different purposes such as initial access, cell handover (handover), and beam failure recovery (beam failure recovery, BFR).

The cell specific random-access parameters (cell specific random-access parameters) can be configured through system messages or dedicated RRC signaling. The cell public random access parameters are configured on the BWP. For the four-step random access procedure, the common random access parameters of the cell may include PRACH resource configuration. As a specific example, PRACH resource configuration can be configured through RACH-ConfigCommon. For the two-step random access procedure, the common random access parameters of the cell may include MsgA resource configuration. The MsgA resource can be configured through MsgA-ConfigCommon, for example. MsgA resources may include PRACH resources and/or msgA-PUSCH resources. As a specific example, the PRACH resource can be configured through rach-ConfigCommonTwoStepRA, and the msgA-PUSCH resource can be configured through msgA-PUSCH-Config.

Dedicated random access parameters (dedicated random access parameters) may be configured through dedicated RRC signaling. As a specific example, the dedicated RRC signaling may be RACH-ConfigDedicated. The dedicated random access parameters may include PRACH resource configuration in the four-step random access process and/or MsgA resource configuration in the two-step random access process. The random access resource configured in the dedicated random access parameter can be used for a contention free random access (CFRA). The random access resources in the dedicated random access parameters can be used to obtain synchronous reconfiguration (such as cell switching, etc.).

Random access parameters for system message requests can be configured through RRC signaling (eg SI-RequestConfig). The random access parameters used for system message request may include PRACH resource configuration, and the PRACH resource configuration is dedicated to requesting system message. If there is no PRACH resource configuration dedicated to requesting system information, the terminal device can request system information according to the PRACH resource configuration in the four-step random access process in the common random access parameters of the cell.

Random access parameters for BFR can be configured through dedicated RRC signaling (eg BeamFailureRecoveryConfig). The random access parameters used for BFR may include PRACH resource configuration, and the PRACH resource configuration is dedicated to beam failure recovery when the terminal device detects beam failure.

After receiving the random access resource configuration, the terminal device can select a corresponding random access resource according to the random access resource configuration to initiate a random access procedure based on different purposes.

Channel Access in Shared Spectrum

As mentioned above, on the new frequency bands used in communication systems (such as the high-frequency bands mentioned above, such as 52.6GHz-71GHz or 71GHz-114.25GHz), it can include both dedicated spectrum (such as licensed spectrum) and shared spectrum ( such as unlicensed spectrum). In addition, for the same spectrum, some countries or regions may have LBT (or channel access process) requirements, while other countries or regions have no LBT requirements.

For countries and regions that have LBT requirements, the LBT method (that is, the channel access method) can include omnidirectional LBT, directional LBT, receiver-side assisted LBT, and no LBT. Among them, for the channel access method without LBT, it may also need to be limited by certain conditions such as limiting a certain duty cycle (duty cycle), limiting a certain transmit power, and limiting the maximum channel occupancy time (maximum channel occupancy time, MCOT) ), application of automatic transmit power control (automatic transfer power control, ATPC), application of dynamic frequency selection (dynamic frequency selection, DFS), long-term interference detection or other interference elimination mechanisms, etc.

In the new frequency band (such as 52.6GHz–71GHz or 71GHz-114.25GHz), for countries and regions with LBT requirements, if the transmission of short control signaling is exempted from LBT, then a certain duty cycle limit (such as every 100ms Under the condition that the total transmission time within the period does not exceed 10 ms), the terminal device can transmit the physical channel in the random access process without performing LBT. However, there is still no conclusion on how the terminal device determines whether the conditions for not performing LBT are met.

In view of the above problems, the following describes the embodiments of the present application in detail. It should be understood that in this embodiment of the present application, the terms "channel access procedure" and "LBT" may be used interchangeably according to a specific context.

FIG. 4 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application. The method in FIG. 4 can be executed by a terminal device and a network device. The terminal device may be, for example, the terminal device 120 mentioned above, and the network device may be, for example, the network device 110 mentioned above.

Referring to Fig. 4, in step S410, the terminal device receives first indication information. Correspondingly, the network device sends the first indication information to the terminal device. The first indication information may be used to determine whether a channel access process is to be performed before transmission on the first physical channel; or, the first indication information may be used to determine a channel access type of the first physical channel.

In step S420, the terminal device transmits the first physical channel according to the first resource (the first resource is used to transmit the first physical channel) and the first indication information. Correspondingly, the network device receives the first physical channel according to the first resource and the first indication information; or, the network device receives the first physical channel according to the first resource.

Through the technical solution provided by the embodiment of this application, in the random access process, the terminal device determines whether to perform the channel access process before transmitting the first physical channel (such as the physical channel corresponding to PRACH or MsgA) according to the first indication information And/or determine the type of channel access performed before transmitting the first physical channel, and by allowing the terminal device to transmit the first physical channel without channel access under certain conditions, it can be ensured that the use of the shared spectrum is fair and reasonable , increasing the transmission probability of the first physical channel in the random access process.

In some embodiments, the first physical channel may comprise PRACH.

In some embodiments, the first physical channel may include a physical channel corresponding to MsgA. The physical channel corresponding to the MsgA may include PRACH and/or PUSCH.

In some embodiments, the first physical channel may include PRACH and a physical channel corresponding to MsgA.

In some embodiments, the first indication information is used to determine whether to perform a channel access process before the first physical channel transmission, including: the first indication information is used to indicate whether to perform a channel access process before the first physical channel transmission Perform channel access process. For example, the first indication information is used to indicate that the channel access process is to be performed before the first physical channel transmission, or the first indication information is used to indicate that the channel access process is not to be performed before the first physical channel transmission.

In some embodiments, the first indication information is used to determine whether to perform a channel access process before the first physical channel transmission, including: the first indication information is used to determine whether to support short control signaling transmission, the The terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether it supports short control signaling transmission.

In some embodiments, the terminal device determines whether to perform a channel access process before the transmission of the first physical channel according to whether it supports short control signaling transmission, which may include at least one of the following situations: when short When the control signaling is transmitted, the terminal device determines to perform a channel access process before the first physical channel transmission; when supporting short control signaling transmission, the terminal device determines that the first physical channel is transmitted before the No channel access process is performed; when short control signaling transmission is supported, the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether the first condition is satisfied.

In some embodiments, whether the first condition is satisfied includes one or more of the following:

Whether the total occupation time of resources used to transmit the first physical channel acquired according to the first configuration information meets a duty cycle condition;

Whether the total occupation time of resources used to transmit the first physical channel acquired according to multiple configuration information meets a duty cycle condition;

Whether the total occupation time of the first resource satisfies the duty ratio condition;

Whether the total occupation time of the resource used to transmit the first physical channel and the second resource obtained according to the first configuration information satisfies a duty cycle condition;

Whether the total occupancy duration of the resource used to transmit the first physical channel and the second resource obtained according to a plurality of configuration information satisfies a duty cycle condition; and

Whether the total occupation time of the first resource and the second resource satisfies a duty cycle condition;

Wherein, the first configuration information is used to obtain the first resource;

Wherein, the plurality of configuration information includes the first configuration information;

Wherein, the second resource is a resource occupied by a discovery signal burst transmission window (discovery burst transmission window, DBTW), or the second resource is a resource used to transmit a synchronizing signal block (synchronizing signal/PBCH block, SSB) (It should be understood that "used to transmit the SSB" means that the SSB may or may not be transmitted), or the second resource is a resource for transmitting the SSB.

In some embodiments, the duty ratio condition may include that the total occupied duration in each cycle does not exceed a first duration. As an example, the length of the cycle may be 100ms, and the length of the first duration may be 10ms.

In some embodiments, the starting position of the period is determined according to a system frame number (system frame number, SFN). For example, the start position of the period is SFN0.

In some embodiments, the second resource is a resource occupied by the DBTW in each period. For example, if the length of the DBTW configured by the network device is 1 ms and the period is 40 ms, then the duration occupied by the second resource within every 100 ms in odd cycles is 3 ms, and the duration occupied by the second resource in every 100 ms in even cycles is 2 ms. Alternatively, the length of the DBTW configured by the network device is 1 ms, and the period is 40 ms. It may also be considered that the duration occupied by the second resource within every 100 ms is 2.5 ms.

In some embodiments, the second resource is a resource used for SSB transmission in each period. The occupation duration of the second resource is the occupation duration of resources used for SSB transmission in each period. For example, if the network device configures the SSB transmission period as 20ms, and the resources used to transmit SSB in each SSB transmission period are 0.25ms, then the duration occupied by the second resource within every 100ms is 1.25ms.

In some embodiments, the second resource is a resource for transmitting SSB in each period. The occupation duration of the second resource is the occupation duration of resources for transmitting the SSB in each period. For example, the network device configures the SSB transmission period to be 20ms, and the resources used to transmit SSB in each SSB transmission period are 0.25ms, wherein, assuming that in a specific 100ms period in 5 SSB transmission periods, the resources for transmitting SSB The occupied durations are 0.2ms, 0.25ms, 0.15ms, 0.2ms, and 0.2ms respectively, and the occupied duration of the second resource within every 100ms is 1ms.

As an example, the meeting the first condition includes: the total occupation time of resources used to transmit the first physical channel obtained according to the first configuration information within every 100 ms does not exceed 10 ms; and/or, the The first condition includes: the total occupancy time of resources used to transmit the first physical channel obtained according to the first configuration information within every 100 ms exceeds 10 ms, wherein the first configuration information is used to obtain the first resource . For example, the first resource is a PRACH resource acquired according to the RACH-ConfigCommon, that is, the first configuration information is the RACH-ConfigCommon. In this example, satisfying the first condition is: the total occupation time of the PRACH resources acquired according to the RACH-ConfigCommon configuration information within every 100ms is not more than 10ms; and/or, not satisfying the first condition is: within every 100ms according to the - The total occupation time of the PRACH resources obtained from the ConfigCommon configuration information exceeds 10ms.

As another example, the meeting the first condition includes: within every 100 ms, the resources used to transmit the first physical channel obtained according to multiple configuration information occupy a total duration of no more than 10 ms; and/or, the not Satisfying the first condition includes: the total occupancy time of resources used to transmit the first physical channel obtained according to a plurality of configuration information within every 100 ms exceeds 10 ms, wherein the plurality of configuration information includes the first configuration information, The first configuration information is used to acquire the first resource. For example, both RACH-ConfigCommon and RACH-ConfigDedicated are used to configure PRACH resources, wherein the first resource is the PRACH resource acquired according to RACH-ConfigCommon, that is, the first configuration information is RACH-ConfigCommon. In this example, satisfying the first condition is: the total occupation time of PRACH resources obtained according to the configuration information of RACH-ConfigCommon and RACH-ConfigDedicated within every 100ms is not more than 10ms; and/or, not satisfying the first condition is: every The total occupation time of the PRACH resources acquired according to the configuration information of RACH-ConfigCommon and RACH-ConfigDedicated within 100ms exceeds 10ms.

As yet another example, the meeting the first condition includes: the total occupation time of the first resource within every 100ms is no more than 10ms; and/or, the failure to meet the first condition includes: The total duration of occupation of a resource exceeds 10 ms, where the first resource is a resource occupied by transmitting the first physical channel. For example, the first physical channel includes the PRACH and the physical channel corresponding to MsgA. In this example, satisfying the first condition is: the total occupation time of resources for transmitting PRACH and MsgA within every 100ms is not more than 10ms; and/or not satisfying the first condition is: transmitting resources for PRACH and MsgA within every 100ms The total occupied time exceeds 10ms.

As yet another example, the meeting the first condition includes: the total occupancy time of the resource used to transmit the first physical channel and the second resource obtained according to the first configuration information within every 100 ms does not exceed 10 ms; and/or , the failure to meet the first condition includes: the total occupancy time of the resources used to transmit the first physical channel and the second resources acquired according to the first configuration information within every 100 ms exceeds 10 ms, wherein the first configuration The information is used to obtain the first resource. Wherein, the occupation duration of the second resource may be the duration occupied by DBTW every 100ms, or the occupation duration of the second resource may be the duration occupied by resources used for SSB transmission within every 100ms, or the occupation duration of the second resource may be the duration occupied by the resources used for SSB transmission within every 100ms. The duration of resource occupation for transmitting SSB.

As yet another example, the satisfying the first condition includes: within every 100 ms, the resources used to transmit the first physical channel and the second resources obtained according to multiple pieces of configuration information occupy a total duration of no more than 10 ms; and/or , the failure to meet the first condition includes: the resources used to transmit the first physical channel and the second resources obtained according to multiple configuration information within every 100 ms occupy a total duration of more than 10 ms, wherein the multiple configurations The information includes first configuration information, and the first configuration information is used to obtain the first resource. Wherein, the occupation duration of the second resource may be the duration occupied by DBTW every 100ms, or the occupation duration of the second resource may be the duration occupied by resources used for SSB transmission within every 100ms, or the occupation duration of the second resource may be the duration occupied by the resources used for SSB transmission within every 100ms. The duration of resource occupation for transmitting SSB.

As yet another example, the meeting the first condition includes: the total occupation time of the first resource and the second resource within every 100ms does not exceed 10ms; and/or, the failure to meet the first condition includes: every 100ms The total occupation time of the first resource and the second resource exceeds 10 ms, wherein the first resource is a resource occupied by transmitting the first physical channel. Wherein, the occupation duration of the second resource may be the duration occupied by DBTW every 100ms, or the occupation duration of the second resource may be the duration occupied by resources used for SSB transmission within every 100ms, or the occupation duration of the second resource may be the duration occupied by the resources used for SSB transmission within every 100ms. The duration of resource occupation for transmitting SSB.

In some embodiments, the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether the first condition is met, including:

When the first condition is met, the terminal device determines not to perform a channel access process before the first physical channel transmission; or,

When the first condition is not satisfied, the terminal device determines that a channel access procedure is to be performed before transmission on the first physical channel.

In some embodiments, when it is determined according to the first indication information that a channel access process is to be performed before the transmission of the first physical channel, the channel access type of the first physical channel is a preset channel access type. The preset channel access type may be one of type 1 channel access, type 2 channel access and type 3 channel access.

In some embodiments, the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, and the behavior of the terminal device includes one or more of the following:

If it is determined according to the first indication information that the channel access process is not performed before the transmission of the first physical channel, the terminal device does not perform the channel access process before transmitting the first physical channel;

If it is determined according to the first indication information that the channel access procedure is not performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device directly transmits the first physical channel through the first resource without performing a channel access process;

If it is determined according to the first indication information that the channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 1 channel access. channel;

If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including: The terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful;

If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 2 channel access; as well as

If the first indication information is used to determine to perform a channel access process before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful.

In some embodiments, the first indication information is used to determine the channel access type of the first physical channel, including: the first indication information is used to indicate the channel access type of the first physical channel. For example, the channel access type of the first physical channel is one of type 1 channel access, type 2 channel access, and type 3 channel access.

In some embodiments, the first indication information is used to determine the channel access type of the first physical channel, and the behavior of the terminal device includes one or more of the following:

If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel;

If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful;

If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel;

If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful;

If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device does not perform a channel access process before transmitting the first physical channel; and

If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device directly transmits the first physical channel through the first resource without performing a channel access process.

In some embodiments, the type 1 channel access may be, for example, channel access of multi-slot channel detection based on random backoff of fixed contention window length.

As an example, the Type 1 channel access may include some or all of the following steps:

1) setting counter N=N _init , wherein N _init is a random number uniformly distributed between 0 and CW, and performs step 4);

2) If N>0, decrement the counter by 1, that is, N=N-1;

3) The time length of the channel is T _sl (wherein T _sl = 5 microseconds) monitoring time slot detection, if the monitoring time slot is idle, perform step 4); otherwise, perform step 5);

4) If N=0, end the channel access process; otherwise, perform step 2);

5) Performing a monitoring time slot detection with a time length of T _d (wherein T _d =8 microseconds) on the channel, the result of the monitoring time slot detection is either occupied or idle;

6) If the channel monitoring result is idle within T _d , execute step 4); otherwise, execute step 5).

Wherein, the time length of T _d =8 microseconds includes a listening time slot of T _sl =5 microseconds, and at least one channel detection needs to be performed in the listening time slot of T _sl =5 microseconds to determine whether the channel is idle .

In some embodiments, the type 2 channel access may be, for example, channel access based on channel detection with a fixed detection slot length.

As an example, the type 2 channel access is: performing a monitoring time slot detection on the channel with a time length of T _d (where T _d =8 microseconds), where T _d =8 microseconds includes a A listening time slot of T _sl =5 microseconds, within the listening time slot of T _sl =5 microseconds, at least one channel detection needs to be performed to determine whether the channel is idle.

In some embodiments, the type 3 channel access may be, for example, channel access that does not require channel detection.

In some embodiments, the first indication information has an association relationship with the first resource.

In some embodiments, the first resource is obtained through first configuration information, and the first indication information has an association relationship with the first configuration information.

In some embodiments, the first configuration information is a system message or dedicated RRC signaling for configuring common random access parameters of a cell, and the first indication information is carried in the first configuration information.

For example, the first resource is a PRACH resource, the first configuration information is RACH-ConfigCommon, the PRACH resource is configured through the RACH-ConfigCommon, and the first indication information is carried in the RACH-ConfigCommon.

In another example, the first resource is a MsgA resource, the first configuration information is MsgA-ConfigCommon, the MsgA resource is configured through MsgA-ConfigCommon, and the first indication information is carried in one of the following configuration information: MsgA-ConfigCommon, rach-ConfigCommonTwoStepRA, and msgA-PUSCH-Config.

In some embodiments, the first configuration information is dedicated RRC signaling for configuring dedicated random access parameters, and the first indication information is carried in the first configuration information.

For example, the first resource is a PRACH resource, the first configuration information is RACH-ConfigDedicated, the PRACH resource is configured through the RACH-ConfigDedicated, and the first indication information is carried in the RACH-ConfigDedicated.

In another example, the first resource is the MsgA resource, the first configuration information is RACH-ConfigDedicated, the MsgA resource is configured through the RACH-ConfigDedicated, and the first indication information is carried in the RACH-ConfigDedicated.

In some embodiments, the first configuration information is first RRC signaling configured for PRACH resources requested by a system message, and the first indication information is carried in the first RRC signaling. Optionally, the first RRC signaling is dedicated RRC signaling for configuring common random access parameters of the cell. For example, the first RRC signaling is SI-RequestConfig.

In some embodiments, the first configuration information is second RRC signaling configuring PRACH resources for BFR, and the first indication information is carried in the second RRC signaling. Optionally, the second RRC signaling is dedicated RRC signaling for configuring dedicated random access parameters. For example, the second RRC signaling is BeamFailureRecoveryConfig.

The method embodiment of the present application is described in detail above with reference to FIG. 4 , and the device embodiment of the present application is described in detail below in conjunction with FIGS. 5 to 7 . It should be understood that the descriptions of the method embodiments correspond to the descriptions of the device embodiments, therefore, for parts not described in detail, reference may be made to the foregoing method embodiments.

FIG. 5 is a schematic structural diagram of a terminal device provided by an embodiment of the present application. The terminal device 500 in FIG. 5 includes a receiving module 510 and a transmitting module 520 .

The receiving module 510 may be configured to receive first indication information. The first indication information is used to determine whether a channel access process is to be performed before the transmission of the first physical channel, or the first indication information is used to determine the channel access type of the first physical channel.

The transmission module 520 may be configured to transmit the first physical channel according to the first resource and the first indication information, where the first resource is used to transmit the first physical channel.

In some embodiments, the first physical channel comprises PRACH.

In some embodiments, the first physical channel includes a physical channel corresponding to MsgA, wherein the physical channel corresponding to MsgA includes PRACH and/or PUSCH.

In some embodiments, the first physical channel may include PRACH and a physical channel corresponding to MsgA.

In some embodiments, the first indication information is used to determine whether to perform a channel access process before the first physical channel transmission, including: the first indication information is used to indicate that before the first physical channel transmission A channel access process is to be performed, or the first indication information is used to indicate not to perform a channel access process before the first physical channel transmission.

In some embodiments, the first indication information is used to determine whether to perform a channel access process before the first physical channel transmission, including: the first indication information is used to determine whether to support short control signaling transmission, the The terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether it supports short control signaling transmission.

In some embodiments, the terminal device determines whether to perform a channel access procedure before the transmission of the first physical channel according to whether short control signaling transmission is supported, including at least one of the following situations: when short control signaling is not supported During signaling transmission, the terminal device determines to perform a channel access process before the first physical channel transmission; when supporting short control signaling transmission, the terminal device determines not to perform a channel access process before the first physical channel transmission Performing a channel access process; when supporting short control signaling transmission, the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether a first condition is satisfied.

In some embodiments, whether the first condition is satisfied includes one or more of the following: whether the total occupation time of resources used to transmit the first physical channel acquired according to the first configuration information meets the duty cycle Conditions; whether the total occupation time of resources used to transmit the first physical channel obtained according to multiple configuration information meets the duty cycle condition; whether the total occupation time of the first resource meets the duty cycle condition; according to the first Whether the total occupancy duration of the resource used to transmit the first physical channel and the second resource acquired by the configuration information satisfies the duty cycle condition; the resource used to transmit the first physical channel and the second resource acquired according to multiple configuration information Whether the total occupied time of the second resource satisfies the duty cycle condition; and whether the total occupied time of the first resource and the second resource satisfies the duty cycle condition; wherein, the first configuration information is used to obtain the The first resource; wherein, the plurality of configuration information includes the first configuration information; wherein, the second resource is a resource occupied by DBTW, or the second resource is a resource used to transmit SSB, or The second resource is a resource for transmitting the SSB.

In some embodiments, the duty ratio condition includes that the total occupied duration in each cycle does not exceed a first duration, wherein the duration of the cycle is 100 ms, and the length of the first duration is 10 ms.

In some embodiments, the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether the first condition is satisfied, including: when the first condition is satisfied, the terminal device determines Not performing a channel access process before the first physical channel transmission; or, when the first condition is not satisfied, the terminal device determines to perform a channel access process before the first physical channel transmission.

In some embodiments, when it is determined according to the first indication information that a channel access process is to be performed before the transmission of the first physical channel, the channel access type of the first physical channel is a preset channel access type.

In some embodiments, the first indication information is used to determine whether to perform a channel access procedure before the transmission of the first physical channel, and the behavior of the terminal device includes one or more of the following: if according to The first indication information determines that the channel access process is not performed before the transmission of the first physical channel, then the terminal device does not perform the channel access process before transmitting the first physical channel; if according to the first The indication information determines that the channel access process is not performed before the transmission of the first physical channel, and the terminal device transmits the first physical channel according to the first resource and the first indication information, including: the terminal equipment does not Perform a channel access process, and directly transmit the first physical channel through the first resource; if it is determined according to the first indication information to perform a channel access process before the transmission of the first physical channel, the terminal device Determine whether the first resource can be used to transmit the first physical channel according to type 1 channel access; if it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, then the The terminal device transmits the first physical channel according to the first resource and the first indication information, including: the terminal device performs a channel access process according to type 1 channel access, and passes the first physical channel after the channel access is successful. A resource transmits the first physical channel; if it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is based on type 2 channel access may be used to transmit the first physical channel; and if the first indication information is used to determine to perform a channel access process before the transmission of the first physical channel, the terminal device, according to the first resource and the first Instructing information to transmit the first physical channel includes: the terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful.

In some embodiments, the first indication information is used to determine the channel access type of the first physical channel, including: the first indication information is used to indicate the channel access type of the first physical channel.

In some embodiments, the channel access type of the first physical channel is one of type 1 channel access, type 2 channel access, and type 3 channel access.

In some embodiments, the first indication information is used to determine the channel access type of the first physical channel, and the behavior of the terminal device includes one or more of the following: if according to the first indication information determines that the channel access type of the first physical channel is type 1 channel access, then the terminal device determines whether the first resource can be used to transmit the first physical channel according to the type 1 channel access; if according to The first indication information determines that the channel access type of the first physical channel is type 1 channel access, and the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; if the first physical channel is determined according to the first indication information The channel access type of a physical channel is type 2 channel access, then the terminal device determines whether the first resource can be used to transmit the first physical channel according to the type 2 channel access; if according to the first indication information determines that the channel access type of the first physical channel is type 2 channel access, then the terminal device transmits the first physical channel according to the first resource and the first indication information, including: the terminal device Perform a channel access process according to type 2 channel access, and transmit the first physical channel through the first resource after the channel access is successful; if the channel of the first physical channel is determined according to the first indication information The access type is type 3 channel access, the terminal device does not perform a channel access process before transmitting the first physical channel; and if the channel access process of the first physical channel is determined according to the first indication information If the input type is type 3 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information, including: the terminal device does not perform a channel access process, and directly uses the The first resource transmits the first physical channel.

In some embodiments, the type 1 channel access is channel access based on random back-off multi-slot channel detection with a fixed contention window length; and/or, the type 2 channel access is based on a fixed detection time slot Channel access with channel detection of length; and/or, the type 3 channel access is channel access that does not require channel detection.

In some embodiments, the first indication information is associated with the first resource; or, the first resource is obtained through first configuration information, and the first indication information is associated with the first configuration Information is related.

In some embodiments, the first configuration information is a system message or dedicated RRC signaling for configuring common random access parameters of a cell, and the first indication information is carried in the first configuration information.

In some embodiments, the first indication information is carried in the first configuration information, including at least one of the following situations: the first resource is a PRACH resource, and the first configuration information is RACH-ConfigCommon , the PRACH resource is configured through RACH-ConfigCommon, the first indication information is carried in the RACH-ConfigCommon; the first resource is a MsgA resource, the first configuration information is MsgA-ConfigCommon, and the MsgA resource Through MsgA-ConfigCommon configuration, the first indication information is carried in one of the following configuration information: MsgA-ConfigCommon, rach-ConfigCommonTwoStepRA, and msgA-PUSCH-Config.

In some embodiments, the first configuration information is dedicated RRC signaling for configuring dedicated random access parameters, and the first indication information is carried in the first configuration information.

In some embodiments, the first indication information is carried in the first configuration information, including at least one of the following situations: the first resource is a PRACH resource, and the first configuration information is RACH-ConfigDedicated , the PRACH resource is configured through RACH-ConfigDedicated, and the first indication information is carried in RACH-ConfigDedicated; the first resource is a MsgA resource, and the first configuration information is RACH-ConfigDedicated, and the MsgA resource is configured through a RACH - ConfigDedicated configuration, the first indication information is carried in RACH-ConfigDedicated.

In some embodiments, the first configuration information is first RRC signaling configured for PRACH resources requested by a system message, and the first indication information is carried in the first RRC signaling.

In some embodiments, the first RRC signaling is SI-RequestConfig.

In some embodiments, the first configuration information is second RRC signaling configuring PRACH resources for beam failure recovery BFR, and the first indication information is carried in the second RRC signaling.

In some embodiments, the second RRC signaling is BeamFailureRecoveryConfig.

FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of the present application. The network device 600 in FIG. 6 includes a sending module 610 and a receiving module 620 .

The sending module 610 may be configured to send first indication information to the terminal device, where the first indication information is used to determine whether a channel access process is to be performed before the first physical channel transmission, or the first indication information is used to determine the The channel access type of the first physical channel;

The receiving module 620 may be configured to receive the first physical channel according to the first resource and the first indication information, where the first resource is used to transmit the first physical channel. Alternatively, the receiving module 620 may be configured to receive the first physical channel according to a first resource, where the first resource is used to transmit the first physical channel.

In some embodiments, the first physical channel comprises PRACH.

In some embodiments, the first physical channel includes a physical channel corresponding to MsgA, wherein the physical channel corresponding to MsgA includes PRACH and/or PUSCH.

In some embodiments, the first physical channel may include PRACH and a physical channel corresponding to MsgA.

In some embodiments, the first indication information is used to determine whether to perform a channel access process before the first physical channel transmission, including: the first indication information is used to indicate that before the first physical channel transmission A channel access process is to be performed, or the first indication information is used to indicate not to perform a channel access process before the first physical channel transmission.

In some embodiments, the first indication information is used to determine whether to perform a channel access process before the first physical channel transmission, including: the first indication information is used to determine whether to support short control signaling transmission, the The terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether it supports short control signaling transmission.

In some embodiments, the terminal device determines whether to perform a channel access procedure before the transmission of the first physical channel according to whether short control signaling transmission is supported, including at least one of the following situations: when short control signaling is not supported During signaling transmission, the terminal device determines to perform a channel access process before the first physical channel transmission; when supporting short control signaling transmission, the terminal device determines not to perform a channel access process before the first physical channel transmission Performing a channel access process; when supporting short control signaling transmission, the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether a first condition is satisfied.

In some embodiments, whether the first condition is satisfied includes one or more of the following: whether the total occupation time of resources used to transmit the first physical channel acquired according to the first configuration information meets the duty cycle Conditions; whether the total occupation time of resources used to transmit the first physical channel obtained according to multiple configuration information meets the duty cycle condition; whether the total occupation time of the first resource meets the duty cycle condition; according to the first Whether the total occupancy duration of the resource used to transmit the first physical channel and the second resource acquired by the configuration information satisfies the duty cycle condition; the resource used to transmit the first physical channel and the second resource acquired according to multiple configuration information Whether the total occupied time of the second resource satisfies the duty cycle condition; and whether the total occupied time of the first resource and the second resource satisfies the duty cycle condition; wherein, the first configuration information is used to obtain the The first resource; wherein, the plurality of configuration information includes the first configuration information; wherein, the second resource is a resource occupied by DBTW, or the second resource is a resource used to transmit SSB, or The second resource is a resource for transmitting the SSB.

In some embodiments, the duty ratio condition includes that the total occupied duration in each cycle does not exceed a first duration, wherein the duration of the cycle is 100 ms, and the length of the first duration is 10 ms.

In some embodiments, the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether the first condition is satisfied, including: when the first condition is satisfied, the terminal device determines Not performing a channel access process before the first physical channel transmission; or, when the first condition is not satisfied, the terminal device determines to perform a channel access process before the first physical channel transmission.

In some embodiments, when it is determined according to the first indication information that a channel access process is to be performed before the transmission of the first physical channel, the channel access type of the first physical channel is a preset channel access type.

In some embodiments, the first indication information is used to determine whether to perform a channel access procedure before the transmission of the first physical channel, and the behavior of the terminal device includes one or more of the following: if according to The first indication information determines that the channel access process is not performed before the transmission of the first physical channel, then the terminal device does not perform the channel access process before transmitting the first physical channel; if according to the first The indication information determines that the channel access process is not performed before the transmission of the first physical channel, and the terminal device transmits the first physical channel according to the first resource and the first indication information, including: the terminal equipment does not Perform a channel access process, and directly transmit the first physical channel through the first resource; if it is determined according to the first indication information to perform a channel access process before the transmission of the first physical channel, the terminal device Determine whether the first resource can be used to transmit the first physical channel according to type 1 channel access; if it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, then the The terminal device transmits the first physical channel according to the first resource and the first indication information, including: the terminal device performs a channel access process according to type 1 channel access, and passes the first physical channel after the channel access is successful. A resource transmits the first physical channel; if it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is based on type 2 channel access may be used to transmit the first physical channel; and if the first indication information is used to determine to perform a channel access process before the transmission of the first physical channel, the terminal device, according to the first resource and the first Instructing information to transmit the first physical channel includes: the terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful.

In some embodiments, the first indication information is used to determine the channel access type of the first physical channel, including: the first indication information is used to indicate the channel access type of the first physical channel.

In some embodiments, the channel access type of the first physical channel is one of type 1 channel access, type 2 channel access, and type 3 channel access.

In some embodiments, the first indication information is used to determine the channel access type of the first physical channel, and the behavior of the terminal device includes one or more of the following: if according to the first indication information determines that the channel access type of the first physical channel is type 1 channel access, then the terminal device determines whether the first resource can be used to transmit the first physical channel according to the type 1 channel access; if according to The first indication information determines that the channel access type of the first physical channel is type 1 channel access, and the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; if the first physical channel is determined according to the first indication information The channel access type of a physical channel is type 2 channel access, then the terminal device determines whether the first resource can be used to transmit the first physical channel according to the type 2 channel access; if according to the first indication information determines that the channel access type of the first physical channel is type 2 channel access, then the terminal device transmits the first physical channel according to the first resource and the first indication information, including: the terminal device Perform a channel access process according to type 2 channel access, and transmit the first physical channel through the first resource after the channel access is successful; if the channel of the first physical channel is determined according to the first indication information The access type is type 3 channel access, the terminal device does not perform a channel access process before transmitting the first physical channel; and if the channel access process of the first physical channel is determined according to the first indication information If the input type is type 3 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information, including: the terminal device does not perform a channel access process, and directly uses the The first resource transmits the first physical channel.

In some embodiments, the type 1 channel access is channel access based on random back-off multi-slot channel detection with a fixed contention window length; and/or, the type 2 channel access is based on a fixed detection time slot Channel access with channel detection of length; and/or, the type 3 channel access is channel access that does not require channel detection.

In some embodiments, the first indication information is associated with the first resource; or, the first resource is obtained through first configuration information, and the first indication information is associated with the first configuration Information is related.

In some embodiments, the first configuration information is a system message or dedicated RRC signaling for configuring common random access parameters of a cell, and the first indication information is carried in the first configuration information.

In some embodiments, the first indication information is carried in the first configuration information, including at least one of the following situations: the first resource is a PRACH resource, and the first configuration information is RACH-ConfigCommon , the PRACH resource is configured through RACH-ConfigCommon, the first indication information is carried in the RACH-ConfigCommon; the first resource is a MsgA resource, the first configuration information is MsgA-ConfigCommon, and the MsgA resource Through MsgA-ConfigCommon configuration, the first indication information is carried in one of the following configuration information: MsgA-ConfigCommon, rach-ConfigCommonTwoStepRA, and msgA-PUSCH-Config.

In some embodiments, the first configuration information is dedicated RRC signaling for configuring dedicated random access parameters, and the first indication information is carried in the first configuration information.

In some embodiments, the first indication information is carried in the first configuration information, including at least one of the following situations: the first resource is a PRACH resource, and the first configuration information is RACH-ConfigDedicated , the PRACH resource is configured through RACH-ConfigDedicated, and the first indication information is carried in RACH-ConfigDedicated; the first resource is a MsgA resource, and the first configuration information is RACH-ConfigDedicated, and the MsgA resource is configured through a RACH - ConfigDedicated configuration, the first indication information is carried in RACH-ConfigDedicated.

In some embodiments, the first configuration information is first RRC signaling configured for PRACH resources requested by a system message, and the first indication information is carried in the first RRC signaling.

In some embodiments, the first RRC signaling is SI-RequestConfig.

In some embodiments, the first configuration information is second RRC signaling configuring PRACH resources for beam failure recovery BFR, and the first indication information is carried in the second RRC signaling.

In some embodiments, the second RRC signaling is BeamFailureRecoveryConfig.

Fig. 7 is a schematic structural diagram of a device according to an embodiment of the present application. The dotted line in Figure 7 indicates that the unit or module is optional. The apparatus 700 may be used to implement the methods described in the foregoing method embodiments. Apparatus 700 may be a chip, a terminal device or a network device.

Apparatus 700 may include one or more processors 710 . The processor 710 may support the device 700 to implement the methods described in the foregoing method embodiments. The processor 710 may be a general purpose processor or a special purpose processor. For example, the processor may be a central processing unit (central processing unit, CPU). Alternatively, the processor can also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), off-the-shelf programmable gate arrays (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 be any conventional processor, or the like.

Apparatus 700 may also include one or more memories 720 . A program is stored in the memory 720, and the program can be executed by the processor 710, so that the processor 710 executes the methods described in the foregoing method embodiments. The memory 720 may be independent from the processor 710 or may be integrated in the processor 710 .

Apparatus 700 may also include a transceiver 730 . The processor 710 can communicate with other devices or chips through the transceiver 730 . For example, the processor 710 may send and receive data with other devices or chips through the transceiver 730 .

The embodiment of the present application also provides a computer-readable storage medium for storing programs. The computer-readable storage medium can be applied to the terminal device or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal device or the network device in the various embodiments of the present application.

The embodiment of the present application also provides a computer program product. The computer program product includes programs. The computer program product can be applied to the terminal device or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal device or the network device in the various embodiments of the present application.

The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or the network device provided in the embodiments of the present application, and the computer program enables the computer to execute the methods performed by the terminal device or the network device in the various embodiments of the present application.

It should be understood that in this embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information.

It should be understood that the term "and/or" in this article is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may mean: A exists alone, and A and B exist at the same time , there are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

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

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 may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be read by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital versatile disc (digital video disc, DVD)) or a semiconductor medium (for example, a solid state disk (solid state disk, SSD) )wait.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (108)

A method for wireless communication, comprising: The terminal device receives first indication information, where the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, or the first indication information is used to determine the channel of the first physical channel access type; The terminal device transmits the first physical channel according to the first resource and the first indication information, where the first resource is used to transmit the first physical channel. The method according to claim 1, wherein the first physical channel comprises a physical random access channel (PRACH). The method according to claim 1 or 2, wherein the first physical channel includes a physical channel corresponding to MsgA, wherein the physical channel corresponding to MsgA includes PRACH and/or a physical uplink shared channel PUSCH. The method according to any one of claims 1-3, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, comprising: the first indication The information is used to indicate that a channel access process is to be performed before the transmission of the first physical channel, or the first indication information is used to indicate that a channel access process is not to be performed before the transmission of the first physical channel. The method according to any one of claims 1-3, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, comprising: the first indication The information is used to determine whether short control signaling transmission is supported, and the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether short control signaling transmission is supported. The method according to claim 5, wherein the terminal device determines whether to perform a channel access process before the transmission of the first physical channel according to whether it supports short control signaling transmission, including at least one of the following situations kind: When the transmission of short control signaling is not supported, the terminal device determines that a channel access process is to be performed before the transmission of the first physical channel; When supporting short control signaling transmission, the terminal device determines not to perform a channel access process before the first physical channel transmission; When the short control signaling transmission is supported, the terminal device determines whether to perform a channel access procedure before the first physical channel transmission according to whether the first condition is satisfied. The method according to claim 6, wherein, whether the first condition is satisfied includes one or more of the following: Whether the total occupation time of resources used to transmit the first physical channel acquired according to the first configuration information meets a duty cycle condition; Whether the total occupation time of resources used to transmit the first physical channel acquired according to multiple configuration information meets a duty cycle condition; Whether the total occupation time of the first resource satisfies the duty ratio condition; Whether the total occupation time of the resource used to transmit the first physical channel and the second resource obtained according to the first configuration information satisfies a duty cycle condition; Whether the total occupancy duration of the resource used to transmit the first physical channel and the second resource obtained according to a plurality of configuration information satisfies a duty cycle condition; and Whether the total occupation time of the first resource and the second resource satisfies a duty cycle condition; Wherein, the first configuration information is used to obtain the first resource; Wherein, the plurality of configuration information includes the first configuration information; Wherein, the second resource is a resource occupied by the discovery signal burst transmission window DBTW, or the second resource is a resource for transmitting a synchronization signal block SSB, or the second resource is a resource for transmitting an SSB. The method according to claim 7, wherein the duty cycle condition includes that the total occupied time in each cycle does not exceed a first time length, wherein the length of the cycle is 100 ms, and the first The duration is 10ms in length. The method according to any one of claims 6-8, wherein the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether the first condition is met, including: When the first condition is met, the terminal device determines not to perform a channel access process before the first physical channel transmission; or, When the first condition is not satisfied, the terminal device determines that a channel access procedure is to be performed before transmission on the first physical channel. The method according to any one of claims 1-9, wherein when it is determined according to the first indication information that a channel access process is to be performed before the transmission of the first physical channel, the first physical The channel access type of the channel is a preset channel access type. The method according to any one of claims 1-10, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, and the terminal device Behavior includes one or more of the following: If it is determined according to the first indication information that the channel access process is not performed before the transmission of the first physical channel, the terminal device does not perform the channel access process before transmitting the first physical channel; If it is determined according to the first indication information that the channel access procedure is not performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device directly transmits the first physical channel through the first resource without performing a channel access process; If it is determined according to the first indication information that the channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 1 channel access. channel; If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including: The terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 2 channel access; as well as If the first indication information is used to determine to perform a channel access process before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful. The method according to any one of claims 1-3, wherein the first indication information is used to determine the channel access type of the first physical channel, comprising: the first indication information is used to Indicates the channel access type of the first physical channel. The method according to claim 12, wherein the channel access type of the first physical channel is one of type 1 channel access, type 2 channel access and type 3 channel access. The method according to any one of claims 1-3, 12, 13, wherein the first indication information is used to determine the channel access type of the first physical channel, and the behavior of the terminal device Including one or more of the following: If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel; If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel; If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device does not perform a channel access process before transmitting the first physical channel; and If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device directly transmits the first physical channel through the first resource without performing a channel access process. The method according to any one of claims 11,13,14, characterized in that: The type 1 channel access is a channel access of multi-slot channel detection based on random backoff of fixed contention window length; and/or, The type 2 channel access is channel access based on channel detection with a fixed detection slot length; and/or, The type 3 channel access is channel access that does not require channel detection. The method according to any one of claims 1-15, wherein the first indication information has an association relationship with the first resource; or, The first resource is acquired through first configuration information, and the first indication information has an association relationship with the first configuration information. The method according to claim 16, wherein the first configuration information is a system message for configuring cell common random access parameters or dedicated radio resource control RRC signaling, and the first indication information is carried in the second In the configuration information. The method according to claim 17, wherein the first indication information carried in the first configuration information includes at least one of the following situations: The first resource is a PRACH resource, the first configuration information is RACH-ConfigCommon, the PRACH resource is configured through RACH-ConfigCommon, and the first indication information is carried in the RACH-ConfigCommon; The first resource is a MsgA resource, the first configuration information is MsgA-ConfigCommon, the MsgA resource is configured through MsgA-ConfigCommon, and the first indication information is carried in one of the following configuration information: MsgA-ConfigCommon , rach-ConfigCommonTwoStepRA, and msgA-PUSCH-Config. The method according to claim 16, wherein the first configuration information is dedicated RRC signaling for configuring dedicated random access parameters, and the first indication information is carried in the first configuration information. The method according to claim 19, wherein the first indication information carried in the first configuration information includes at least one of the following situations: The first resource is a PRACH resource, the first configuration information is RACH-ConfigDedicated, the PRACH resource is configured through RACH-ConfigDedicated, and the first indication information is carried in RACH-ConfigDedicated; The first resource is the MsgA resource, the first configuration information is RACH-ConfigDedicated, the MsgA resource is configured through the RACH-ConfigDedicated, and the first indication information is carried in the RACH-ConfigDedicated. The method according to any one of claims 16-20, wherein the first configuration information is first RRC signaling configured for PRACH resources requested by system messages, and the first indication information is carried in In the first RRC signaling. The method according to claim 21, wherein the first RRC signaling is SI-RequestConfig. The method according to any one of claims 16-22, wherein the first configuration information is the second RRC signaling configured to configure PRACH resources for beam failure recovery BFR, and the first indication information carries In the second RRC signaling. The method according to claim 23, wherein the second RRC signaling is BeamFailureRecoveryConfig. A method for wireless communication, comprising: The network device sends first indication information to the terminal device, where the first indication information is used to determine whether a channel access process is to be performed before transmission on the first physical channel, or the first indication information is used to determine whether the first physical channel the channel access type of the channel; The network device receives the first physical channel according to the first resource and the first indication information, where the first resource is used to transmit the first physical channel. The method according to claim 25, wherein the first physical channel comprises a physical random access channel (PRACH). The method according to claim 25 or 26, wherein the first physical channel includes a physical channel corresponding to MsgA, wherein the physical channel corresponding to MsgA includes PRACH and/or a physical uplink shared channel PUSCH. The method according to any one of claims 25-27, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, comprising: the first indication The information is used to indicate that a channel access process is to be performed before the transmission of the first physical channel, or the first indication information is used to indicate that a channel access process is not to be performed before the transmission of the first physical channel. The method according to any one of claims 25-28, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, comprising: the first indication The information is used to determine whether short control signaling transmission is supported, and the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether short control signaling transmission is supported. The method according to claim 29, wherein the terminal device determines whether to perform a channel access process before the transmission of the first physical channel according to whether it supports short control signaling transmission, including at least one of the following situations kind: When the transmission of short control signaling is not supported, the terminal device determines that a channel access process is to be performed before the transmission of the first physical channel; When supporting short control signaling transmission, the terminal device determines not to perform a channel access process before the first physical channel transmission; When the short control signaling transmission is supported, the terminal device determines whether to perform a channel access procedure before the first physical channel transmission according to whether the first condition is satisfied. The method according to claim 30, wherein, whether the first condition is satisfied includes one or more of the following: Whether the total occupation time of resources used to transmit the first physical channel acquired according to the first configuration information meets a duty cycle condition; Whether the total occupation time of resources used to transmit the first physical channel acquired according to multiple configuration information meets a duty cycle condition; Whether the total occupation time of the first resource satisfies the duty ratio condition; Whether the total occupation time of the resource used to transmit the first physical channel and the second resource obtained according to the first configuration information satisfies a duty cycle condition; Whether the total occupancy duration of the resource used to transmit the first physical channel and the second resource obtained according to a plurality of configuration information satisfies a duty cycle condition; and Whether the total occupation time of the first resource and the second resource satisfies a duty cycle condition; Wherein, the first configuration information is used to obtain the first resource; Wherein, the plurality of configuration information includes the first configuration information; Wherein, the second resource is a resource occupied by the discovery signal burst transmission window DBTW, or the second resource is a resource for transmitting a synchronization signal block SSB, or the second resource is a resource for transmitting an SSB. The method according to claim 31, wherein the duty ratio condition includes that the total occupied time in each cycle does not exceed a first time length, wherein the length of the cycle is 100 ms, and the first The duration is 10ms in length. The method according to any one of claims 30-32, wherein the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether the first condition is met, including: When the first condition is met, the terminal device determines not to perform a channel access process before the first physical channel transmission; or, When the first condition is not satisfied, the terminal device determines that a channel access procedure is to be performed before transmission on the first physical channel. The method according to any one of claims 25-33, wherein when it is determined according to the first indication information that a channel access process is to be performed before the transmission of the first physical channel, the first physical channel The channel access type of the channel is a preset channel access type. The method according to any one of claims 25-34, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, and the terminal device Behavior includes one or more of the following: If it is determined according to the first indication information that the channel access process is not performed before the transmission of the first physical channel, the terminal device does not perform the channel access process before transmitting the first physical channel; If it is determined according to the first indication information that the channel access procedure is not performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device directly transmits the first physical channel through the first resource without performing a channel access process; If it is determined according to the first indication information that the channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 1 channel access. channel; If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including: The terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 2 channel access; as well as If the first indication information is used to determine to perform a channel access process before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful. The method according to any one of claims 25-27, wherein the first indication information is used to determine the channel access type of the first physical channel, comprising: the first indication information is used to Indicates the channel access type of the first physical channel. The method according to claim 36, wherein the channel access type of the first physical channel is one of type 1 channel access, type 2 channel access and type 3 channel access. The method according to any one of claims 25-27, 36, 37, wherein the first indication information is used to determine the channel access type of the first physical channel, and the behavior of the terminal device Including one or more of the following: If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel; If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel; If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device does not perform a channel access process before transmitting the first physical channel; and If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device directly transmits the first physical channel through the first resource without performing a channel access process. A method according to any one of claims 35, 37, 38, characterized in that: The type 1 channel access is a channel access of multi-slot channel detection based on random backoff of fixed contention window length; and/or, The type 2 channel access is channel access based on channel detection with a fixed detection slot length; and/or, The type 3 channel access is channel access that does not require channel detection. The method according to any one of claims 25-39, wherein the first indication information has an association relationship with the first resource; or, The first resource is acquired through first configuration information, and the first indication information has an association relationship with the first configuration information. The method according to claim 40, wherein the first configuration information is a system message for configuring cell common random access parameters or dedicated radio resource control RRC signaling, and the first indication information is carried in the second In the configuration information. The method according to claim 41, wherein the first indication information carried in the first configuration information includes at least one of the following situations: The first resource is a PRACH resource, the first configuration information is RACH-ConfigCommon, the PRACH resource is configured through RACH-ConfigCommon, and the first indication information is carried in the RACH-ConfigCommon; The first resource is a MsgA resource, the first configuration information is MsgA-ConfigCommon, the MsgA resource is configured through MsgA-ConfigCommon, and the first indication information is carried in one of the following configuration information: MsgA-ConfigCommon , rach-ConfigCommonTwoStepRA, and msgA-PUSCH-Config. The method according to claim 40, wherein the first configuration information is dedicated RRC signaling for configuring dedicated random access parameters, and the first indication information is carried in the first configuration information. The method according to claim 43, wherein the first indication information carried in the first configuration information includes at least one of the following situations: The first resource is a PRACH resource, the first configuration information is RACH-ConfigDedicated, the PRACH resource is configured through RACH-ConfigDedicated, and the first indication information is carried in RACH-ConfigDedicated; The first resource is the MsgA resource, the first configuration information is RACH-ConfigDedicated, the MsgA resource is configured through the RACH-ConfigDedicated, and the first indication information is carried in the RACH-ConfigDedicated. The method according to any one of claims 40-44, wherein the first configuration information is first RRC signaling configured for PRACH resources requested by system messages, and the first indication information is carried in In the first RRC signaling. The method according to claim 45, wherein the first RRC signaling is SI-RequestConfig. The method according to any one of claims 40-46, wherein the first configuration information is the second RRC signaling configured to configure PRACH resources for beam failure recovery BFR, and the first indication information carries In the second RRC signaling. The method according to claim 47, wherein the second RRC signaling is BeamFailureRecoveryConfig. A terminal device, characterized in that it includes: A receiving module, configured to receive first indication information, where the first indication information is used to determine whether a channel access process is to be performed before the first physical channel transmission, or the first indication information is used to determine the first physical channel the channel access type of the channel; A transmission module, configured to transmit the first physical channel according to the first resource and the first indication information, where the first resource is used to transmit the first physical channel. The terminal device according to claim 49, wherein the first physical channel comprises a physical random access channel (PRACH). The terminal device according to claim 49 or 50, wherein the first physical channel includes a physical channel corresponding to MsgA, wherein the physical channel corresponding to MsgA includes PRACH and/or a physical uplink shared channel PUSCH. The terminal device according to any one of claims 49-51, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, including: the first The indication information is used to indicate that a channel access process is to be performed before the transmission of the first physical channel, or the first indication information is used to indicate that a channel access process is not to be performed before the transmission of the first physical channel. The terminal device according to any one of claims 49-51, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, including: the first The indication information is used to determine whether to support short control signaling transmission, and the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether to support short control signaling transmission. The terminal device according to claim 53, wherein the terminal device determines whether to perform a channel access process before the transmission of the first physical channel according to whether it supports short control signaling transmission, including at least one of the following situations A sort of: When the transmission of short control signaling is not supported, the terminal device determines that a channel access process is to be performed before the transmission of the first physical channel; When supporting short control signaling transmission, the terminal device determines not to perform a channel access process before the first physical channel transmission; When the short control signaling transmission is supported, the terminal device determines whether to perform a channel access procedure before the first physical channel transmission according to whether the first condition is satisfied. The terminal device according to claim 54, wherein, whether the first condition is satisfied includes one or more of the following: Whether the total occupation time of resources used to transmit the first physical channel acquired according to the first configuration information meets a duty cycle condition; Whether the total occupation time of resources used to transmit the first physical channel acquired according to multiple configuration information meets a duty cycle condition; Whether the total occupation time of the first resource satisfies the duty ratio condition; Whether the total occupation time of the resource used to transmit the first physical channel and the second resource obtained according to the first configuration information satisfies a duty cycle condition; Whether the total occupancy duration of the resource used to transmit the first physical channel and the second resource obtained according to a plurality of configuration information satisfies a duty cycle condition; and Whether the total occupation time of the first resource and the second resource satisfies a duty cycle condition; Wherein, the first configuration information is used to obtain the first resource; Wherein, the plurality of configuration information includes the first configuration information; Wherein, the second resource is a resource occupied by the discovery signal burst transmission window DBTW, or the second resource is a resource for transmitting a synchronization signal block SSB, or the second resource is a resource for transmitting an SSB. The terminal device according to claim 55, wherein the duty ratio condition includes that the total duration of occupation in each cycle does not exceed a first duration, wherein the length of the cycle is 100 ms, and the second A duration is 10ms in length. The terminal device according to any one of claims 54-56, wherein the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether the first condition is met, including: When the first condition is met, the terminal device determines not to perform a channel access process before the first physical channel transmission; or, When the first condition is not satisfied, the terminal device determines that a channel access procedure is to be performed before transmission on the first physical channel. The terminal device according to any one of claims 49-57, wherein when it is determined according to the first indication information that a channel access process is to be performed before the transmission of the first physical channel, the first The channel access type of the physical channel is a preset channel access type. The terminal device according to any one of claims 49-58, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, and the terminal device Behavior includes one or more of the following: If it is determined according to the first indication information that the channel access process is not performed before the transmission of the first physical channel, the terminal device does not perform the channel access process before transmitting the first physical channel; If it is determined according to the first indication information that the channel access procedure is not performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device directly transmits the first physical channel through the first resource without performing a channel access process; If it is determined according to the first indication information that the channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 1 channel access. channel; If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including: The terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 2 channel access; as well as If the first indication information is used to determine to perform a channel access process before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful. The terminal device according to any one of claims 49-51, wherein the first indication information is used to determine the channel access type of the first physical channel, comprising: using the first indication information to Indicates the channel access type of the first physical channel. The terminal device according to claim 60, wherein the channel access type of the first physical channel is one of type 1 channel access, type 2 channel access, and type 3 channel access. The terminal device according to any one of claims 49-51, 60, and 61, wherein the first indication information is used to determine the channel access type of the first physical channel, and the terminal device's Behavior includes one or more of the following: If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel; If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel; If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device does not perform a channel access process before transmitting the first physical channel; and If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device directly transmits the first physical channel through the first resource without performing a channel access process. The terminal device according to any one of claims 59, 61, 62, characterized in that: The type 1 channel access is a channel access of multi-slot channel detection based on random backoff of fixed contention window length; and/or, The type 2 channel access is channel access based on channel detection with a fixed detection slot length; and/or, The type 3 channel access is channel access that does not require channel detection. The terminal device according to any one of claims 49-63, wherein the first indication information has an association relationship with the first resource; or, The first resource is acquired through first configuration information, and the first indication information has an association relationship with the first configuration information. The terminal device according to claim 64, wherein the first configuration information is a system message for configuring cell common random access parameters or dedicated radio resource control RRC signaling, and the first indication information is carried in the In the first configuration information. The terminal device according to claim 65, wherein the first indication information carried in the first configuration information includes at least one of the following situations: The first resource is a PRACH resource, the first configuration information is RACH-ConfigCommon, the PRACH resource is configured through RACH-ConfigCommon, and the first indication information is carried in the RACH-ConfigCommon; The first resource is a MsgA resource, the first configuration information is MsgA-ConfigCommon, the MsgA resource is configured through MsgA-ConfigCommon, and the first indication information is carried in one of the following configuration information: MsgA-ConfigCommon , rach-ConfigCommonTwoStepRA, and msgA-PUSCH-Config. The terminal device according to claim 64, wherein the first configuration information is dedicated RRC signaling for configuring dedicated random access parameters, and the first indication information is carried in the first configuration information. The terminal device according to claim 67, wherein the first indication information carried in the first configuration information includes at least one of the following situations: The first resource is a PRACH resource, the first configuration information is RACH-ConfigDedicated, the PRACH resource is configured through RACH-ConfigDedicated, and the first indication information is carried in RACH-ConfigDedicated; The first resource is the MsgA resource, the first configuration information is RACH-ConfigDedicated, the MsgA resource is configured through the RACH-ConfigDedicated, and the first indication information is carried in the RACH-ConfigDedicated. The terminal device according to any one of claims 64-68, wherein the first configuration information is the first RRC signaling configured for PRACH resources requested by system messages, and the first indication information carries In the first RRC signaling. The terminal device according to claim 69, wherein the first RRC signaling is SI-RequestConfig. The terminal device according to any one of claims 64-70, wherein the first configuration information is the second RRC signaling configured for PRACH resources used for beam failure recovery BFR, and the first indication information Carried in the second RRC signaling. The terminal device according to claim 71, wherein the second RRC signaling is BeamFailureRecoveryConfig. A network device, characterized in that it includes: A sending module, configured to send first indication information to the terminal device, where the first indication information is used to determine whether a channel access process is to be performed before the first physical channel transmission, or the first indication information is used to determine the The channel access type of the first physical channel; A receiving module, configured to receive the first physical channel according to the first resource and the first indication information, where the first resource is used to transmit the first physical channel. The network device according to claim 73, wherein the first physical channel comprises a physical random access channel (PRACH). The network device according to claim 73 or 74, wherein the first physical channel includes a physical channel corresponding to MsgA, wherein the physical channel corresponding to MsgA includes PRACH and/or a physical uplink shared channel PUSCH. The network device according to any one of claims 73-75, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, including: the first The indication information is used to indicate that a channel access process is to be performed before the transmission of the first physical channel, or the first indication information is used to indicate that a channel access process is not to be performed before the transmission of the first physical channel. The network device according to any one of claims 73-76, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, including: the first The indication information is used to determine whether to support short control signaling transmission, and the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether to support short control signaling transmission. The network device according to claim 77, wherein the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether it supports short control signaling transmission, including at least one of the following situations A sort of: When the transmission of short control signaling is not supported, the terminal device determines that a channel access process is to be performed before the transmission of the first physical channel; When supporting short control signaling transmission, the terminal device determines not to perform a channel access process before the first physical channel transmission; When the short control signaling transmission is supported, the terminal device determines whether to perform a channel access procedure before the first physical channel transmission according to whether the first condition is satisfied. The network device according to claim 78, wherein whether the first condition is satisfied includes one or more of the following: Whether the total occupation time of resources used to transmit the first physical channel acquired according to the first configuration information meets a duty cycle condition; Whether the total occupation time of resources used to transmit the first physical channel acquired according to multiple configuration information meets a duty cycle condition; Whether the total occupation time of the first resource satisfies the duty ratio condition; Whether the total occupation time of the resource used to transmit the first physical channel and the second resource obtained according to the first configuration information satisfies a duty cycle condition; Whether the total occupancy duration of the resource used to transmit the first physical channel and the second resource obtained according to a plurality of configuration information satisfies a duty cycle condition; and Whether the total occupation time of the first resource and the second resource satisfies a duty cycle condition; Wherein, the first configuration information is used to obtain the first resource; Wherein, the plurality of configuration information includes the first configuration information; Wherein, the second resource is a resource occupied by the discovery signal burst transmission window DBTW, or the second resource is a resource for transmitting a synchronization signal block SSB, or the second resource is a resource for transmitting an SSB. The network device according to claim 79, wherein the duty cycle condition includes that the total occupied time in each cycle does not exceed a first time length, wherein the length of the cycle is 100 ms, and the second A duration is 10ms in length. The network device according to any one of claims 78-80, wherein the terminal device determines whether to perform a channel access process before the first physical channel transmission according to whether the first condition is met, including: When the first condition is met, the terminal device determines not to perform a channel access process before the first physical channel transmission; or, When the first condition is not satisfied, the terminal device determines that a channel access procedure is to be performed before transmission on the first physical channel. The network device according to any one of claims 73-81, wherein when it is determined according to the first indication information that a channel access process is to be performed before the transmission of the first physical channel, the first The channel access type of the physical channel is a preset channel access type. The network device according to any one of claims 73-82, wherein the first indication information is used to determine whether to perform a channel access process before the transmission of the first physical channel, and the terminal device Behavior includes one or more of the following: If it is determined according to the first indication information that the channel access process is not performed before the transmission of the first physical channel, the terminal device does not perform the channel access process before transmitting the first physical channel; If it is determined according to the first indication information that the channel access procedure is not performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device directly transmits the first physical channel through the first resource without performing a channel access process; If it is determined according to the first indication information that the channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 1 channel access. channel; If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including: The terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that a channel access process is performed before the transmission of the first physical channel, the terminal device determines whether the first resource is available for transmission of the first physical channel according to type 2 channel access; as well as If the first indication information is used to determine to perform a channel access process before the transmission of the first physical channel, the terminal device transmits the first physical channel according to the first resource and the first indication information, including : The terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful. The network device according to any one of claims 73-75, wherein the first indication information is used to determine the channel access type of the first physical channel, comprising: using the first indication information to Indicates the channel access type of the first physical channel. The network device according to claim 84, wherein the channel access type of the first physical channel is one of type 1 channel access, type 2 channel access and type 3 channel access. The network device according to any one of claims 73-75, 84, 85, wherein the first indication information is used to determine the channel access type of the first physical channel, and the terminal device Behavior includes one or more of the following: If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel; If it is determined according to the first indication information that the channel access type of the first physical channel is type 1 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 1 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device determines whether the first resource can be used to transmit the a first physical channel; If it is determined according to the first indication information that the channel access type of the first physical channel is type 2 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device performs a channel access process according to type 2 channel access, and transmits the first physical channel through the first resource after the channel access is successful; If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device does not perform a channel access process before transmitting the first physical channel; and If it is determined according to the first indication information that the channel access type of the first physical channel is type 3 channel access, the terminal device transmits the first physical channel according to the first resource and the first indication information , including: the terminal device directly transmits the first physical channel through the first resource without performing a channel access process. The network device according to any one of claims 83, 85, 86, characterized in that: The type 1 channel access is a channel access of multi-slot channel detection based on random backoff of fixed contention window length; and/or, The type 2 channel access is channel access based on channel detection with a fixed detection slot length; and/or, The type 3 channel access is channel access that does not require channel detection. The network device according to any one of claims 73-87, wherein the first indication information has an association relationship with the first resource; or, The first resource is acquired through first configuration information, and the first indication information has an association relationship with the first configuration information. The network device according to claim 88, wherein the first configuration information is a system message for configuring cell common random access parameters or dedicated radio resource control RRC signaling, and the first indication information is carried in the In the first configuration information. The network device according to claim 89, wherein the first indication information carried in the first configuration information includes at least one of the following situations: The first resource is a PRACH resource, the first configuration information is RACH-ConfigCommon, the PRACH resource is configured through RACH-ConfigCommon, and the first indication information is carried in the RACH-ConfigCommon; The first resource is a MsgA resource, the first configuration information is MsgA-ConfigCommon, the MsgA resource is configured through MsgA-ConfigCommon, and the first indication information is carried in one of the following configuration information: MsgA-ConfigCommon , rach-ConfigCommonTwoStepRA, and msgA-PUSCH-Config. The network device according to claim 88, wherein the first configuration information is dedicated RRC signaling for configuring dedicated random access parameters, and the first indication information is carried in the first configuration information. The network device according to claim 91, wherein the first indication information carried in the first configuration information includes at least one of the following situations: The first resource is a PRACH resource, the first configuration information is RACH-ConfigDedicated, the PRACH resource is configured through RACH-ConfigDedicated, and the first indication information is carried in RACH-ConfigDedicated; The first resource is the MsgA resource, the first configuration information is RACH-ConfigDedicated, the MsgA resource is configured through the RACH-ConfigDedicated, and the first indication information is carried in the RACH-ConfigDedicated. The network device according to any one of claims 88-92, wherein the first configuration information is the first RRC signaling configured for PRACH resources requested by system messages, and the first indication information carries In the first RRC signaling. The network device according to claim 93, wherein the first RRC signaling is SI-RequestConfig. The network device according to any one of claims 88-94, wherein the first configuration information is the second RRC signaling configured for PRACH resources used for beam failure recovery BFR, and the first indication information Carried in the second RRC signaling. The network device according to claim 95, wherein the second RRC signaling is BeamFailureRecoveryConfig. A terminal device, characterized in that it includes a memory and a processor, the memory is used to store programs, and the processor is used to call the programs in the memory to execute any one of claims 1-24 Methods. A network device, characterized in that it includes a memory and a processor, the memory is used to store programs, and the processor is used to call the programs in the memory to execute any one of claims 25-48 Methods. An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 1-24. An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 25-48. A chip, characterized by comprising a processor, configured to call a program from a memory, so that a device installed with the chip executes the method according to any one of claims 1-24. A chip, characterized by comprising a processor, configured to call a program from a memory, so that a device installed with the chip executes the method according to any one of claims 25-48. A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 1-24. A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 25-48. A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 1-24. A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 25-48. A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 1-24. A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 25-48.

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