Method and apparatus for wireless communication

Abstract

A method and device of wireless communication, the method comprising: receiving, by a first device, first control information transmitted by a second device, the first control information being used by the first device to determine whether the second device initiates a request-acknowledgement procedure to the first device; and determining, by the first device, whether to transmit acknowledgement information to the second device based on the first control information.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communication, in particular to a wireless communication method and device. BACKGROUND

[0002] A communication device using an unlicensed spectrum must meet regulatory requirements, for example, the communication device needs to follow the "Listen Before Talk (LBT)" principle, that is, the communication device needs to perform channel detection before transmitting a signal on a channel of the unlicensed spectrum, and only when the channel detection result is that the channel is idle, the communication device can transmit a signal; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot transmit a signal.

[0003] With the evolution of the New Radio (NR) system, high frequency bands are introduced. For countries and regions with LBT requirements, LBT methods (i.e., channel access methods) can include omnidirectional LBT, directional LBT, receive-side assisted LBT, and no LBT. Since the high frequency band is relatively high, the LBT method on the unlicensed spectrum on the high frequency band is different from the LBT method on the unlicensed spectrum on the traditional frequency band, and therefore, how to support channel or signal transmission based on transceiver interaction in the NR-U system on the high frequency band is an urgent problem to be solved. SUMMARY

[0004] The present application provides a wireless communication method and device, which can realize receive measurement assisted LBT between communication devices.

[0005] In a first aspect, a wireless communication method is provided, comprising: a first device receiving first control information sent by a second device, the first control information being used for the first device to determine whether the second device initiates a request-acknowledgement process to the first device.

[0006] The first device determines whether to send acknowledgement information to the second device according to the first control information.

[0007] In a second aspect, a wireless communication method is provided, comprising: a second device sending first control information to a first device, the first control information being used for the first device to determine whether the second device initiates a request-acknowledgement process to the first device.

[0008] In a third aspect, a terminal device is provided, configured to perform the method in the first aspect or any implementation manner thereof.

[0009] Specifically, the terminal device comprises a function module configured to perform the method in the first aspect or any implementation manner thereof.

[0010] In a fourth aspect, a network device is provided for performing the method in the second aspect or any of the implementation forms thereof.

[0011] In particular, the network device comprises function modules for performing the method in the second aspect or any of the implementation forms thereof.

[0012] In a fifth aspect, a terminal device is provided, comprising a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to perform the method in the first aspect or any of the implementation forms thereof.

[0013] In a sixth aspect, a network device is provided, comprising a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to perform the method in the second aspect or any of the implementation forms thereof.

[0014] In a seventh aspect, a chip is provided for implementing the method in any of the first aspect to the second aspect or any of the implementation forms thereof.

[0015] In particular, the chip comprises a processor configured to invoke and run a computer program from a memory, so that a device installed with the chip performs the method in any of the first aspect to the second aspect or any of the implementation forms thereof.

[0016] In an eighth aspect, a computer readable storage medium is provided for storing a computer program, which causes a computer to perform the method in any of the first aspect to the second aspect or any of the implementation forms thereof.

[0017] In a ninth aspect, a computer program product is provided, comprising computer program instructions, which cause a computer to perform the method in any of the first aspect to the second aspect or any of the implementation forms thereof.

[0018] In a tenth aspect, a computer program is provided, which, when running on a computer, causes the computer to perform the method in any of the first aspect to the second aspect or any of the implementation forms thereof.

[0019] Through the above technical solution, the second device indicates to the first device on the receiving side whether the second device initiates the request-response process by sending the first control information, so that the channel or signal transmission based on the transceiving interaction between the first device and the second device can be used. BRIEF DESCRIPTION OF DRAWINGS

[0020] FIGS. 1A-1C is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

[0021] FIG. 2 is a schematic diagram of RTS / CTS based information transmission.

[0022] FIG. 3 is a schematic interaction diagram of a method of wireless communication according to embodiments of the present application.

[0023] FIG. 4 is a schematic block diagram of a device of wireless communication according to embodiments of the present application.

[0024] FIG. 5 is a schematic block diagram of a device of wireless communication according to embodiments of the present application.

[0025] FIG. 6 is a schematic block diagram of a communication device according to embodiments of the present application.

[0026] FIG. 7 is a schematic block diagram of a chip according to embodiments of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in embodiments of the present application will be described below with reference to the drawings in embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without creative work based on the embodiments in the present application shall fall within the scope of the present application.

[0028] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) system or other communication systems, etc.

[0029] Generally, the traditional communication system supports a limited number of connections, which is easy to implement. However, with the development of communication technology, the mobile communication system will not only support the traditional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0030] The communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) network deployment scenario.

[0031] The communication system in the embodiments of the present application can be applied to an unlicensed spectrum, which can also be regarded as a shared spectrum, or can be applied to a licensed spectrum, which can also be regarded as a non-shared spectrum.

[0032] The embodiments of the present application can be applied to a non-terrestrial network (NTN) system, and can also be applied to a terrestrial network (TN) system.

[0033] The embodiments of the present application combine network devices and terminal devices, wherein the terminal device can also be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device, etc.

[0034] The terminal device can be a station (STATION, ST) in a WLAN, can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (PLMN) network, etc.

[0035] In the embodiments of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0036] In the embodiments of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc. The terminal device involved in the embodiments of the present application can also be referred to as a terminal, a user equipment (UE), an access terminal device, a vehicle-mounted terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus, etc. The terminal device can also be fixed or mobile.

[0037] By way of example and without limitation, the terminal device in the embodiments of the present application can also be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes, etc. The wearable device is a portable device that is directly worn on the body or integrated into the clothes or accessories of the user. The wearable device is not only a hardware device, but also has powerful functions through software support and data interaction and cloud interaction. The general wearable smart device includes a device with full functions and large size, which can realize complete or partial functions without relying on a smart phone, such as a smart watch or smart glasses, etc., and a device that focuses on a certain application function and needs to cooperate with other devices such as a smart phone, such as various smart wristbands and smart jewelry for monitoring vital signs, etc.

[0038] In embodiments of the present application, the network device can be a device for communicating with the mobile device, and the network device can be an access point (AP) in a WLAN, a base transceiver station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, a network device in an NR network (gNB), or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.

[0039] By way of example and not limitation, in embodiments of the present application, the network device can have a mobile characteristic, for example, the network device can be a mobile device. In some embodiments of the present application, the network device can be a satellite, a balloon station. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments of the present application, the network device can also be a base station arranged at a location on land, water, etc.

[0040] In embodiments of the present application, the network device can serve a cell, and the terminal device communicates with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be a cell corresponding to the network device (e.g., a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell (Small cell). The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, etc., which have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.

[0041] Exemplary, FIG. 1A An exemplary architecture of a communication system is provided in embodiments of the present application. As shown in FIG. 1A The communication system 100 can include a network device 110, which can be a device for communicating with a terminal device 120 (or a communication terminal, a terminal). The network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area.

[0042] FIG. 1A Exemplarily, one network device and two terminal devices are shown, in some embodiments of the present application, the communication system 100 can include a plurality of network devices and each network device can include other number of terminal devices within the coverage range of the network device, which is not limited in the embodiments of the present application.

[0043] Exemplarily, FIG. 1B Another schematic diagram of the architecture of a communication system is provided in some embodiments of the present application. Please refer to FIG. 1B , which includes a terminal device 1101 and a satellite 1102, and the terminal device 1101 and the satellite 1102 can communicate wirelessly. The network formed between the terminal device 1101 and the satellite 1102 can also be referred to as NTN. In FIG. 1B the architecture of the communication system shown, the satellite 1102 can have the function of a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. Under the system architecture, the satellite 1102 can be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1102 can be included in the communication system, and each network device 1102 can include other number of terminal devices within the coverage range of the network device, which is not limited in the embodiments of the present application.

[0044] Exemplarily, FIG. 1C Another schematic diagram of the architecture of a communication system is provided in some embodiments of the present application. Please refer to FIG. 1C , which includes a terminal device 1201, a satellite 1202 and a base station 1203, and the terminal device 1201 and the satellite 1202 can communicate wirelessly, and the satellite 1202 and the base station 1203 can communicate. The network formed between the terminal device 1201, the satellite 1202 and the base station 1203 can also be referred to as NTN. In FIG. 1C the architecture of the communication system shown, the satellite 1202 can 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 can be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1203 can be included in the communication system, and each network device 1203 can include other number of terminal devices within the coverage range of the network device, which is not limited in the embodiments of the present application.

[0045] It should be noted that FIGS. 1A-1C only as an example of the system to which the present application is applicable, of course, the method shown in the embodiments of the present application can also be applicable to other systems, for example, 5G communication system, LTE communication system, etc., which is not limited in the embodiments of the present application.

[0046] In some embodiments of the present application, FIGS. 1A-1CThe illustrated wireless communication system can also include a Mobility Management Entity (MME), an Access and Mobility Management Function (AMF), and other network entities, which are not limited in the embodiments of the present application.

[0047] It should be understood that the devices with communication functions in the network / system in the embodiments of the present application can be referred to as communication devices. For example, FIG. 1A For example, the communication system 100, the communication devices can include network devices 110 and terminal devices 120 with communication functions, which can be specific devices as described above, and details are not described herein again. The communication devices can 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 the embodiments of the present application.

[0048] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" herein is only used to describe the association relationship of the associated objects. For example, A and / or B can represent three cases: A alone, A and B together, and B alone. In addition, the character " / " generally represents an "or" relationship between the associated objects.

[0049] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, indirect indication, or can represent an associated relationship. For example, A indicates B, which can mean that B can be obtained by A directly; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0050] In the description of the embodiments of the present application, the term "corresponding" can represent a direct or indirect corresponding relationship between the two, or an associated relationship between the two, or an indication and being indicated, configuration and being configured, etc.

[0051] The indication information in the embodiments of the present application includes at least one of physical layer signaling (such as downlink control information (DCI)), radio resource control (RRC) signaling, and media access control control element (MAC CE).

[0052] The high-layer parameter or high-layer signaling in the embodiments of the present application includes at least one of a system message, Radio Resource Control (RRC) signaling and a Media Access Control Control Element (MAC CE).

[0053] In some embodiments of the present application, "predefined" can be implemented by pre-storing corresponding codes, tables or other means for indicating relevant information in devices (for example, including terminal devices and network devices), and the specific implementation manner of the present application is not limited. For example, predefined can refer to defined in a protocol.

[0054] In some embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, for example, can include an LTE protocol, an NR protocol and a related protocol applied to a future communication system, and the present application is not limited thereto.

[0055] In order to better understand the embodiments of the present application, first, the related technologies of the present application are described.

[0056] Currently, the NR system mainly considers two frequency bands, FR1 (Frequency range 1) and FR2 (Frequency range 2). As an example, the frequency domain ranges included in FR1 and FR2 are shown in Table 1.

[0057] Table 1

[0058] Frequency band definitions Corresponding frequency band ranges FR1 410 MHz - 7.125 GHz FR2 24.25 GHz - 52.6 GHz

[0059] With the evolution of the NR system, the technology on new frequency bands such as high frequency also begins to be researched. The frequency domain ranges included in the new frequency bands are shown in Table 2. For the convenience of description, the present application uses FRX to represent, and it should be understood that the frequency band name should not constitute any limitation. For example, FRX can be FR3.

[0060] Table 2: Range of new frequency bands

[0061]

[0062]

[0063] The FRX frequency band includes licensed spectrum and unlicensed spectrum. In other words, the FRX frequency band includes unshared spectrum or dedicated spectrum, and also includes shared spectrum.

[0064] Unlicensed spectrum is the spectrum divided by countries and regions that can be used for communication of radio equipment, which is generally considered as a shared spectrum, i.e., communication equipment in different communication systems can use the spectrum as long as it meets the regulatory requirements set by the country or region on the spectrum, without the need to apply for exclusive spectrum authorization from the government.

[0065] In order for various communication systems using unlicensed spectrum for wireless communication to coexist on the spectrum in a friendly manner, some countries or regions have stipulated regulatory requirements that must be met for using unlicensed spectrum. For example, communication equipment follows the "listen before talk (LBT)" principle, i.e., before a communication equipment transmits a signal on a channel of unlicensed spectrum, it needs to perform channel sensing first, and only when the channel sensing result is that the channel is idle, the communication equipment can transmit a signal; if the channel sensing result of the communication equipment on the channel of unlicensed spectrum is that the channel is busy, the communication equipment cannot transmit a signal. For another example, in order to ensure fairness, the length of time during which a communication equipment transmits a signal on a channel of unlicensed spectrum in one transmission cannot exceed a certain length of time. For another example, in order to avoid the power of a signal transmitted on a channel of unlicensed spectrum being too large to affect the transmission of other important signals on the channel, the communication equipment needs to follow the restriction of not exceeding the maximum power spectral density when transmitting a signal on a channel of unlicensed spectrum. It should be noted that in some countries or regions, there is no LBT requirement for unlicensed spectrum included in the FRX frequency band.

[0066] Basic concepts on unlicensed spectrum:

[0067] Maximum Channel Occupancy Time (MCOT): refers to the maximum length of time during which a channel of shared spectrum can be used for signal transmission after successful channel sensing.

[0068] Channel Occupancy Time (COT): refers to the length of time during which a channel of shared spectrum is used for signal transmission after successful channel sensing, which can also be considered as the length of time during which a channel of shared spectrum is occupied after successful channel sensing. The length of time during which the channel is occupied by signals can be continuous or discontinuous, and the length of time includes the total time of signal transmission by the device initiating channel occupancy and the device sharing channel occupancy.

[0069] Network device initiated COT (gNB / eNB-initiated COT): also referred to as network device initiated COT, refers to the COT obtained by a network device on a channel of shared spectrum after successful channel sensing. In the network device initiated COT, in addition to being used for transmission by the network device, it can also be used for transmission by a terminal device under certain conditions.

[0070] UE-initiated COT: also referred to as terminal device initiated COT, refers to a channel occupancy time obtained by a terminal device after a successful channel detection on a channel of a shared spectrum. Within the UE-initiated COT, in addition to being able to be used for transmission by the terminal device, it can also be used for transmission by a network device under certain conditions.

[0071] DL transmission burst: a set of downlink transmissions (i.e., including one or more downlink transmissions) by a network device, which are consecutive transmissions (i.e., there is no gap between the multiple downlink transmissions), or which have a gap but the gap is less than or equal to a preset value, for example, the preset value is 16μs on the FR1 frequency band. If the gap between two downlink transmissions by the network device is greater than the preset value 16μs, then the two downlink transmissions are considered to belong to two downlink transmission opportunities.

[0072] UL transmission burst: a set of uplink transmissions (i.e., including one or more uplink transmissions) by a terminal device, which are consecutive transmissions (i.e., there is no gap between the multiple uplink transmissions), or which have a gap but the gap is less than or equal to a preset value, for example, the preset value is 16μs on the FR1 frequency band. If the gap between two uplink transmissions by the terminal device is greater than the preset value 16μs, then the two uplink transmissions are considered to belong to two uplink transmission opportunities.

[0073] It should be understood that on the FRX frequency band, the above-mentioned preset value can be other values, for example, 8μs. This application does not limit this.

[0074] Successful channel detection: also referred to as LBT success or channel detection idle. For example, the energy detection in the listening time slot of the channel is lower than the energy detection threshold.

[0075] Failed channel detection: also referred to as LBT failure or channel detection busy. For example, the energy detection in the listening time slot of the channel is higher than or equal to the energy detection threshold.

[0076] Receive-side assisted channel access

[0077] Receive-side assisted channel listening is an LBT method based on a Request To Send / Clear To Send (RTS / CTS) mechanism. As shown in FIG. 1, the network device sends an RTS to the terminal device, and the terminal device sends a CTS to the network device. The network device and the terminal device can perform channel detection on the channel during the RTS and CTS time slots, respectively. FIG. 2The network device sends a signal similar to RTS to inquire whether the terminal device is ready for data reception before transmission. After receiving the RTS signal, if the LBT process is successful, the terminal device can send a signal similar to CTS, for example, report its interference measurement result, to the network device to inform the network device that it is ready for data reception. After receiving the CTS, the network device can perform downlink transmission to the terminal device. Or, if the terminal device does not receive the RTS, or the terminal device receives the RTS but cannot send the CTS due to the failure of the LBT process, the terminal device will not send the CTS signal to the network device, and the network device can give up the downlink transmission to the terminal device without receiving the CTS signal from the terminal device.

[0078] Channel access of unlicensed spectrum on FRX band

[0079] On the FRX band, for countries and regions with LBT requirements, the LBT method (i.e., channel access method) can include omnidirectional LBT, directional LBT, receive-side assisted LBT, and no LBT. Among them, for the channel access method without LBT, it may also be subject to certain conditions such as automatic transmit power control (ATPC), DFS, long-term interference detection, or other interference elimination mechanisms. In addition, switching between channel access with LBT and channel access without LBT can also be performed.

[0080] For countries and regions without LBT requirements, whether to introduce certain conditions such as whether to apply DFS, apply ATPC, apply long-term interference detection, limit a certain duty cycle, limit a certain transmit power, limit MCOT, and the like also needs to be considered.

[0081] After the introduction of the FRX band, due to the higher frequency band, the LBT method on the unlicensed spectrum on the FRX band is different from the LBT method on the unlicensed spectrum on the FR1 band. For example, a channel access method based on transceiver interaction, also known as a receive-side assisted channel access method, can be introduced on the FRX band. Therefore, how to support the receive-side assisted channel access (or receive-side assisted channel detection, receive-side assisted LBT) method in the NR-U system on the FRX band is an urgent problem to be solved.

[0082] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined with the technical solutions of the embodiments of the present application as optional schemes, which all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0083] FIG. 3is a schematic interaction diagram of a method 300 of wireless communication according to an embodiment of the application, as FIG. 3 shown, the method 300 comprises the following contents:

[0084] S310, a first device receives first control information sent by a second device, the first control information being used for the first device to determine whether the second device initiates a request-acknowledgement process to the first device;

[0085] S320, the first device determines whether to send acknowledgement information to the second device according to the first control information.

[0086] In some embodiments, the request-acknowledgement process is used to assist channel detection of the second device, or is used to assist channel access of the second device.

[0087] In some embodiments, the request-acknowledgement process is used to assist channel detection of the first device, or is used to assist channel access of the first device.

[0088] In some embodiments, the request-acknowledgement process can comprise an RTS / CTS transmission process, as FIG. 2 shown.

[0089] In some embodiments, the request-acknowledgement process can comprise that the second device initiates a request, for example, sends transmission request information to the first device, and the first device sends acknowledgement information to the second device after receiving the request sent by the second device.

[0090] In some embodiments of the application, the first device sends acknowledgement information to the second device after receiving the request sent by the second device, under the condition that a certain condition is met.

[0091] In some embodiments, the acknowledgement information comprises Hybrid Automatic Repeat request Acknowledgement (HARQ-ACK) information, or the acknowledgement information only comprises Acknowledgement (ACK) information. The HARQ-ACK information comprises ACK information or Negative Acknowledgement (NACK) information.

[0092] In some embodiments, the acknowledgement information comprises measurement information of the first device, for example, CSI measurement result, beam information, precoding information, interference measurement result, RRM or RLM measurement result, etc.

[0093] In some embodiments, the response information is used to indicate to the second device whether to allow transmission, for example, ACK indicates to allow transmission, and NACK indicates not to allow transmission.

[0094] In some embodiments, the response information is used to indicate to the second device to allow transmission.

[0095] In some embodiments of the present application, the first device comprises a terminal device, the second device comprises a network device, the first control information can be first downlink control information (DCI), and the first DCI corresponds to a first DCI format.

[0096] In some embodiments of the present application, the first downlink control information can be transmitted through a physical downlink control channel (PDCCH), that is, the first downlink control information can be carried in the PDCCH.

[0097] In some embodiments of the present application, the first DCI format comprises at least one of the following DCI formats:

[0098] a DCI format for scheduling a physical downlink shared channel (PDSCH);

[0099] a DCI format for activating a semi-persistent scheduling (SPS) PDSCH;

[0100] a DCI format for releasing a semi-persistent scheduling (SPS) PDSCH;

[0101] a DCI format for scheduling a physical uplink shared channel (PUSCH);

[0102] a DCI format for activating a configure grant (CG) PUSCH;

[0103] a DCI format for releasing a CG PUSCH;

[0104] a DCI format for activating a configure grant (CG) physical sidelink channel;

[0105] a DCI format for releasing a configure grant (CG) physical sidelink channel.

[0106] As an example, the first DCI format includes DCI format 1_1, DCI format 1_2, DCI format 0_1, or DCI format 0_2, etc. By implementing the function of whether to initiate the request-acknowledgement process through the existing DCI format instead of introducing a new DCI format, the first device can be avoided to detect more DCI formats, thereby avoiding enhancing the PDCCH blind detection complexity of the first device.

[0107] In some embodiments of the present application, the first device includes a first terminal device, the second device includes a second terminal device, and the first control information can be first sidelink control information (SCI), and the first control information corresponds to a first SCI format.

[0108] In some embodiments of the present application, the first sidelink control information can be transmitted through a physical sidelink control channel (PSCCH), that is, the first sidelink control information can be carried in the PSCCH.

[0109] In some embodiments, the first SCI format includes an SCI format for scheduling a physical sidelink shared channel (PSSCH).

[0110] As an example, the first SCI format is SCI format 1-A, SCI format 2-A, or SCI format 2-B. By implementing the function of whether to initiate the request-acknowledgement process through the existing SCI format instead of introducing a new SCI format, the first device can be avoided to detect more SCI formats, thereby avoiding enhancing the control channel blind detection complexity of the first device.

[0111] In some embodiments of the present application, the first device includes a network device, the second device includes a terminal device, and the first control information is uplink control information.

[0112] That is, the embodiments of the present application can be applied to downlink reception side assisted channel detection, sidelink reception side assisted channel detection, and uplink reception side assisted channel detection.

[0113] In some embodiments of the present application, the first control information corresponds to a first control information format, and the first control information format corresponds to a first radio network temporary identifier (RNTI).

[0114] In some embodiments of the present application, the first RNTI is a RNTI dedicated to the first device. For example, the first RNTI is a Cell Radio Network Temporary Identity (C-RNTI) or a Configured Scheduling RNTI (CS-RNTI) or a Modulation and Coding Scheme RNTI (MCS-C-RNTI) or the like of the first device.

[0115] In some embodiments of the present application, the first control information can be control information dedicated to the first device.

[0116] For example, the second device is a network device, and the first control information is a first DCI. For example, the first DCI can be carried in a dedicated Physical Downlink Control Channel (PDCCH) of the terminal device.

[0117] In some embodiments of the present application, the first control information can be common control information. For example, the first control information can be transmitted through a Group common (GC) PDCCH.

[0118] In some embodiments of the present application, the first control information can also be carried through a physical signal such as a reference signal. As an example, the above process can include: the first device receives a reference signal transmitted by the second device, the reference signal being used by the first device to determine whether the second device initiates a request-acknowledgement process to the first device, and the first device determines whether to transmit acknowledgement information to the second device according to the reference signal.

[0119] In some embodiments of the present application, the S320 can include:

[0120] If it is determined according to the first control information that the second device initiates the request-acknowledgement process to the first device, the first device determines to transmit the acknowledgement information to the second device; and / or,

[0121] If it is determined according to the first control information that the second device does not initiate the request-acknowledgement process to the first device, the first device determines not to transmit the acknowledgement information to the second device.

[0122] In some embodiments of the present application, the acknowledgement information is used to indicate that transmission is allowed, for example, ACK information.

[0123] In some embodiments of the present application, the first device determines to send the second device the response information if the first device receives the first control information sent by the second device.

[0124] In some embodiments of the present application, the first device determines to send the second device the response information if it is determined from the first control information that the second device does not initiate the request-response procedure to the first device, wherein the response information is used to indicate no permission of transmission, e.g. NACK information. In some embodiments of the present application, whether the second device initiates the request-response procedure to the first device can be determined according to whether the first control information includes transmission request information.

[0125] As an example, the first device determines that the second device initiates the request-response procedure to the first device if the first control information includes the transmission request information.

[0126] As another example, the first device determines that the second device does not initiate the request-response procedure to the first device if the first control information does not include the transmission request information.

[0127] In some embodiments, the first device can send the second device the response information, e.g. ACK, if the first control information includes transmission request information. Or, the first device can not send the second device the response information, or send the second device the response information used to indicate no permission of transmission, if the first control information does not include transmission request information.

[0128] In some embodiments, whether the first control information includes the transmission request information is configured by a network device. Or, whether the first control information can be used to initiate the request-response procedure is configured by a network device.

[0129] As an example, a network device can configure whether the first control information includes the transmission request information through a high layer parameter, or the network device can configure whether the information field corresponding to the transmission request information is included in the control information format corresponding to the first control information through a high layer parameter. For example, the high layer parameter takes a first value to indicate that the first control information includes the transmission request information, and the high layer parameter takes a second value to indicate that the first control information does not include the transmission request information. For another example, if the high layer parameter is configured to indicate that the first control information includes the transmission request information, if the high layer parameter is not configured, it indicates that the first control information does not include the transmission request information.

[0130] In some embodiments, whether the transmission request information is included in the first control information is configured by the terminal device. Alternatively, whether the first control information can be used to initiate the request-answer procedure is configured by the terminal device.

[0131] As an example, the terminal device can be configured by a higher layer parameter whether the first control information includes the transmission request information, or whether the first control information corresponds to a control information format including the information field corresponding to the transmission request information. For example, the higher layer parameter takes a first value, indicating that the first control information includes the transmission request information, and takes a second value, indicating that the first control information does not include the transmission request information. As another example, if the higher layer parameter is configured, indicating that the first control information includes the transmission request information, if the higher layer parameter is not configured, indicating that the first control information does not include the transmission request information.

[0132] In this case, the first device is the first terminal device, and the second device can be the second terminal device. The terminal device configuring the higher layer parameter can be the third terminal device. The third terminal device can be the first terminal device, or the second terminal device, or a control node of the first terminal device, or a control node of the second terminal device. The control node of the first terminal device can be a group head terminal of a terminal group to which the first terminal device belongs, and the control node of the second terminal device can be a group head terminal of a terminal group to which the second terminal device belongs.

[0133] In some cases, the third terminal device and the second terminal device can be the same terminal device. In other cases, the third terminal device and the first terminal device can be the same terminal device, and the group head terminals corresponding to the first terminal device and the second terminal device are the same terminal device.

[0134] In some embodiments, the first control information includes the transmission request information, and the first control information corresponds to a first control information format.

[0135] As an implementation, the first control information format can include an information field for carrying the transmission request information, i.e., the transmission request information corresponds to a dedicated information field in the first control information field. In some embodiments, the first control information format can also include an information field for carrying scheduling information. In this implementation, the first control information format can be used to simultaneously send the transmission request information and the scheduling information to the first device.

[0136] As another implementation, the transmission request information is multiplexed in an existing information field in the first control information format. This implementation can reduce the control information overhead.

[0137] As one example, the first control information format is a DCI format for scheduling a PDSCH or activating a SPS PDSCH transmission. The first device is a terminal device and the second device is a network device. If the terminal device receives the first control information including the transmission request information, the terminal device determines to send an acknowledgement information to the network device. Further, in a case that the terminal device sends the acknowledgement information to the network device, the terminal device receives the PDSCH scheduled by the first control information or receives the SPS PDSCH activated by the first control information.

[0138] As another example, the first control information format is a DCI format for scheduling a PUSCH or activating a CG PUSCH transmission. The first device is a terminal device and the second device is a network device. If the terminal device receives the first control information including the transmission request information, the terminal device determines to send an acknowledgement information to the network device. Further, in a case that the terminal device sends the acknowledgement information to the network device, the terminal device sends the PUSCH scheduled by the first control information or sends the CG PUSCH activated by the first control information.

[0139] As yet another example, the first control information format is a DCI format for releasing a SPS PDSCH or releasing a CG PUSCH. The first device is a terminal device and the second device is a network device. If the terminal device receives the first control information including the transmission request information, the terminal device determines to send an acknowledgement information to the network device. In some embodiments of the present application, the acknowledgement information includes ACK information corresponding to the first control information, e.g., the acknowledgement information is used to indicate that the terminal device receives the DCI for releasing the SPS PDSCH or releasing the CG PUSCH and receives the transmission request information. Further, in a case that the terminal device sends the acknowledgement information to the network device, the terminal device no longer receives the SPS PDSCH or no longer sends the CG PUSCH.

[0140] As a further example, the first control information format is a DCI format for activating or releasing a configured grant physical sidelink channel. The first device is a terminal device, and the second device is a network device. If the terminal device receives the first control information including the transmission request information, the terminal device determines to send a response information to the network device. In some embodiments of the present application, the response information includes ACK information corresponding to the first control information, e.g., the response information is used to indicate that the terminal device receives the DCI for activating or releasing the configured grant physical sidelink channel and receives the transmission request information. Further, in the case that the terminal device sends the response information to the network device, the terminal device can start or stop the transmission of the configured grant physical sidelink channel with another terminal device.

[0141] As a further example, the first control information format is a SCI format for scheduling a PSSCH transmission. The first device is a first terminal device, and the second device is a second terminal device. If the first terminal device receives the first control information including the transmission request information, the first terminal device determines to send a response information to the second terminal device. Further, in the case that the first terminal device sends the response information to the second terminal device, the first terminal device receives the PSSCH scheduled by the first control information.

[0142] In some embodiments, the first control information includes format indication information, which is used to indicate whether the first control information includes the transmission request information, in other words, the format indication information can indicate whether the first control information is used to send the transmission request information.

[0143] For example, the format indication information includes 1 bit, when the 1 bit indicates a preset value, e.g., “1”, it is used to indicate that the first control information includes the transmission request information; when the 1 bit indicates another preset value, e.g., “0”, the format indication information is used to indicate that the first control information does not include the transmission request information.

[0144] As an example, assume that the network device configures by a higher layer parameter that the transmission request information can be included in the DCI format 1_1 for scheduling a PDSCH, and the format indication information is included in the DCI format 1_1. When the terminal device receives the DCI corresponding to the DCI format 1_1, if the format indication information in the DCI indicates that the DCI includes the transmission request information, the terminal device interprets the DCI according to the information field corresponding to the transmission request information; if the format indication information in the DCI indicates that the DCI does not include the transmission request information, the terminal device interprets the DCI according to the information field corresponding to the scheduling of the PDSCH.

[0145] In some embodiments, the second device initiates the request-acknowledgement procedure to the first device according to the content of the transmission request information. For example, when the transmission request information includes resource for transmitting the acknowledgement information, beam for transmitting the acknowledgement information, or other related information, the second device is considered to initiate the request-acknowledgement procedure to the first device.

[0146] That is, the transmission request information can be used to determine whether the second device initiates the request-acknowledgement procedure to the first device, and / or resource, beam, channel access manner, or other related information for the first device to transmit the acknowledgement information. It should be understood that the resource, beam, channel access manner, or other related information for the first device to transmit the acknowledgement information can be determined by the transmission request information, can be predefined or configured by a higher layer parameter, or can be partially determined by the transmission request information and partially predefined or configured by a higher layer parameter, and the present application is not limited in this regard.

[0147] The following describes specific implementations of the transmission request information in combination with specific embodiments. It should be understood that the following information content is only an example, and the present application is not limited in this regard.

[0148] In some embodiments of the present application, the transmission request information includes at least one of the following information:

[0149] The first indication information, the at least one frequency domain resource indication information, the beam indication information, the acknowledgement resource indication information, and the channel access indication information, wherein the first indication information is used to indicate whether to initiate the request-acknowledgement procedure.

[0150] In some embodiments, the number of bits occupied by the first indication information in the first control information is configured by a network device, for example, by a higher layer parameter.

[0151] In some other embodiments, the number of bits occupied by the first indication information in the first control information is configured by a third device with a management control function, for example, a third terminal device, for example, by a higher layer parameter.

[0152] In this case, the first device is a first terminal device, the second device is a second terminal device, and the third terminal device can be the first terminal device, or the second terminal device, or a control node of the first terminal device, or a control node of the second terminal device. The control node of the first terminal device is, for example, a group head terminal of a terminal group to which the first terminal device belongs, and the control node of the second terminal device is, for example, a group head terminal of a terminal group to which the second terminal device belongs.

[0153] In some cases, the third terminal device and the second terminal device can be the same terminal device. In other cases, the third terminal device and the first terminal device can be the same terminal device, and the group head terminals corresponding to the first terminal device and the second terminal device are the same terminal device.

[0154] In yet other embodiments, the number of bits occupied by the first indication information in the first control information can also be predefined.

[0155] That is, the first indication information can be configured by a network device corresponding to the first device or a control node having a management control function for the first device, or predefined.

[0156] It should be understood that the configuration of the number of bits occupied by the beam indication information, the response resource indication information, the signal access indication information, and the frequency domain resource indication information in the first control information is similar to the configuration of the number of bits occupied by the first indication information in the first control information, and thus will not be described here for brevity.

[0157] That is, the number of bits occupied by the at least one information included in the transmission request information in the first control information is determined according to a high-layer parameter configured by a network device or the third device, or the number of bits occupied by the at least one information included in the transmission request information in the first control information is predefined.

[0158] Taking the response resource indication information as an example, for example, assuming that the network device configures the response resource indication information to correspond to M states through a high-layer parameter, or the response resource indication information is predefined to correspond to M states, then the number of bits corresponding to the response resource indication information in the first control information format is ceil (log2 (M)) bits, where log2 represents the logarithm with base 2, and ceil represents the ceiling. For example, M = 8, and the corresponding number of bits is 3 bits.

[0159] In some embodiments, the first indication information is used to indicate whether the second device initiates the request-response process to the first device.

[0160] As an example, the first indication information is 1 bit, and the value of the 1 bit is used to indicate whether the second device initiates the request-response process to the first device.

[0161] For example, when the value of the 1 bit is a first preset value, for example, 1, it is used to indicate that the second device initiates the request-response process to the first device, and when the value of the 1 bit is a second preset value, for example, 0, it is used to indicate that the second device does not initiate the request-response process to the first device.

[0162] In this case, the first indication information can be considered as being related to a frequency domain resource associated with the first control information. For example, the first control information is used to schedule or activate a physical channel or physical signal transmission on a first bandwidth part (BWP), and the first indication information is associated with the first BWP.

[0163] In some embodiments, the first indication information is carried in a dedicated information field in the first control information. For example, an information field can be newly added in the first control information to carry the first indication information.

[0164] In other embodiments, the first indication information can be multiplexed in an existing information field in the first control information.

[0165] As an example, the first control information includes a first information field, and the first indication information is represented by a first state of the first information field in the first control information. For example, when the value of the first information field is the first state, the first information field is used to indicate that the request-acknowledgement process is not initiated to the first device. For another example, when the value of the first information field is not the first state, the first information field is used to determine whether to initiate the request-acknowledgement process, or the first information field is not used to determine whether to initiate the request-acknowledgement process. That is, when the value of the first information field is the first state, the first information field is interpreted according to the first indication information, and when the value of the first information field is not the first state, the first information field is interpreted according to the original meaning of the first information field.

[0166] In some embodiments of the present application, the first state can be an invalid state or a reserved state.

[0167] In some embodiments of the present application, the first information field includes at least one information field.

[0168] For example, the first information field is an information field corresponding to acknowledgement resource indication information, if the acknowledgement resource indication information indicates an invalid acknowledgement resource, for example, does not indicate the time domain position of the acknowledgement resource, it means that the second device does not initiate the request-acknowledgement process to the first device; or, if the acknowledgement resource indication information indicates a valid acknowledgement resource, it means that the first information field is interpreted according to the acknowledgement resource indication information, and the second device initiates the request-acknowledgement process to the first device, wherein the acknowledgement resource used in the request-acknowledgement process is determined according to the valid acknowledgement resource indicated by the acknowledgement resource indication information.

[0169] As a further example, the first indication information is represented by a value of a part or all bits of the first control information being a second state. For example, when the value of the part or all bits in the first control information is the second state, the first indication information indicates that the request-answer process is not initiated, or in other words, the first control information indicates that the request-answer process is not initiated.

[0170] For example, the value of M bits in the first control information being a first state indicates that the request-answer process is not initiated to the first device if the M bits are all "1" or all "0", otherwise, the M bits are normally interpreted.

[0171] In some embodiments of the present application, the at least one frequency domain resource indication information is associated with at least one cell or at least one BWP or at least one frequency domain resource set, or in other words, each frequency domain resource indication information in the at least one frequency domain resource indication information is associated with a cell or a BWP or a frequency domain resource set. A first frequency domain resource indication information in the at least one frequency domain resource indication information is associated with a first cell or a first BWP or a first frequency domain resource set. The first frequency domain resource indication information is used to indicate whether the second device initiates the request-answer process to the first device on the first cell or the first BWP or the first frequency domain resource set, or the first frequency domain resource indication information is used to indicate whether to initiate the request-answer process corresponding to the first cell or the first BWP or the first frequency domain resource set, or the first frequency domain resource indication information is used to indicate that the response information is associated with the first cell or the first BWP or the first frequency domain resource set.

[0172] In some embodiments of the present application, the first cell is a cell corresponding to the first device, the first BWP is a BWP corresponding to the first cell, and the first frequency domain resource set is a frequency domain resource set corresponding to the first BWP. For example, the first BWP is an active BWP.

[0173] For example, the at least one frequency domain resource indication information includes a first frequency domain resource indication information associated with a first cell, wherein the first frequency domain resource indication information is used to indicate whether the second device initiates the request-answer process corresponding to the first cell to the first device.

[0174] It should be understood that the request-answer process corresponding to the first cell initiated to the first device can mean that the request-answer process is initiated on the first cell, or the request-answer process is initiated on a second cell, wherein the second cell and the first cell have a corresponding relationship.

[0175] As an example, the first frequency domain resource indication information is 1 bit, and a value of the 1 bit is used to indicate whether the second device initiates the request- response process corresponding to the first cell to the first device. For example, when the value of the 1 bit is a first preset value, for example, 1, it is used to indicate that the second device initiates the request-response process corresponding to the first cell to the first device, and when the value of the 1 bit is a second preset value, for example, 0, it is used to indicate that the second device initiates the request-response process corresponding to the first cell to the first device.

[0176] It should be understood that in the above examples, the first cell can also be replaced by other frequency domain concepts, for example, BWP, or a frequency domain resource set, and the like, and the embodiments of the present application do not limit this, that is, the frequency domain resource indication information can be associated with a cell, or associated with a BWP, or associated with a frequency domain resource set, and the like.

[0177] It should also be understood that in the embodiments of the present application, the beam indication information, the response resource indication information and the channel access indication information can be associated with the frequency domain resource, or can also be not associated with the frequency domain resource, that is, the embodiments of the present application can configure transmission request information associated with the frequency domain resource, or can also configure transmission request information not associated with the frequency domain resource, so as to realize different accuracy of the receiving side auxiliary channel detection.

[0178] In some embodiments, the frequency domain resource indication information is carried in a dedicated information field in the first control information. For example, an information field can be added in the first control information to carry the frequency domain resource indication information.

[0179] In other embodiments, the frequency domain resource indication information can multiplex the existing information field in the first control information.

[0180] As an example, the first control information includes a second information field, and the frequency domain resource indication information is indicated by a first state of the second information field in the first control information.

[0181] For example, when the value of the second information field is the first state, the second information field is used to indicate that the second device does not initiate the request- response process corresponding to the associated cell or BWP or frequency domain resource set to the first device. For another example, when the value of the second information field is not the first state, the second information field is not used to determine whether to initiate the request-response process. For another example, when the value of the second information field is not the first state, the second information field is used to determine that the second device initiates the request-response process corresponding to the associated cell or BWP or frequency domain resource set to the first device.

[0182] When the second information field has the first state, the first information field is interpreted according to the frequency domain resource indication information; and when the second information field has a state other than the first state, the first information field is interpreted according to the original definition of the second information field.

[0183] For example, the second information field is an information field corresponding to response resource indication information, and includes N bits. If all the N bits are "1" or "0", it indicates that the second device does not initiate the request-response process corresponding to the associated cell or BWP or frequency domain resource set to the first device; otherwise, the information field is interpreted according to the response resource indication information.

[0184] In some embodiments of the present application, the first state can be an invalid state or a reserved state.

[0185] As another example, the frequency domain resource indication information is indicated by the value of part or all bits of the first control information being in a second state. For example, when the value of the part or all bits in the first control information is in the second state, it indicates that the second device does not initiate the request-response process to the first device corresponding to the associated cell or BWP or frequency domain resource set.

[0186] Taking the BWP associated with the frequency domain resource indication information as an example. As an example, the terminal device is configured with N BWPs, and the frequency domain resource indication information includes N bits, each bit corresponding to a BWP. When a bit indicates a preset value, for example, "1", it is used to indicate that the request-response process corresponding to the BWP is initiated; when a bit indicates another preset value, for example, "0", it is used to indicate that the request-response process corresponding to the BWP is not initiated, where N is a positive integer.

[0187] As another example, the terminal device is configured with N BWPs, and the first control information is transmitted through a first BWP in the N BWPs. The frequency domain resource indication information includes N-1 bits, each bit corresponding to a BWP in the N BWPs except the first BWP. When a bit indicates a preset value, for example, "1", it is used to indicate that the request-response process corresponding to the BWP is initiated; when a bit indicates another preset value, for example, "0", it is used to indicate that the request-response process corresponding to the BWP is not initiated.

[0188] For the first BWP, whether to initiate the request-response process can be implicitly indicated.

[0189] In some embodiments of this application, the beam indication information is used to determine at least one of the following: first beam information associated with the first control information, second beam information associated with physical channel transmission, and third beam information associated with the response information. For example, the beam indication information is used to determine at least one of the following: first reference signal information associated with the first control information, second reference signal information associated with physical channel transmission, and third reference signal information associated with the response information.

[0190] In some embodiments of this application, beam information may be replaced with reference signal information, reference signal index, or TCI information.

[0191] In some embodiments, the first beam information associated with the first control information may be beam information used to transmit the first control information, or beam information used to determine the transmission beam of the first control information. Alternatively, the first beam information associated with the first control information may be information of a first reference signal having a quasi-co-located QCL relationship with the first control information or the physical channel or physical signal carrying the first control information, such as the index of the first reference signal or the first TCI information.

[0192] In some embodiments, the physical channel carrying the first control information may be a PDCCH, PUCCH, or a physical side-by-side control channel, such as PSCCH.

[0193] In some embodiments, the physical signal carrying the first control information may be an SSB, CSI-RS, or SRS, or a physical side-tracking signal, such as a side-tracking CSI-RS or phase-tracking reference signals (PT-RS).

[0194] In some embodiments, the second beam information associated with the physical channel can be beam information used to transmit the physical channel. For example, the beam used to transmit the physical channel can be determined based on the second beam information associated with the physical channel. Alternatively, the second beam information associated with the physical channel can be information about a second reference signal that has a QCL relationship with the physical channel, such as the index of the second reference signal or second TCI information.

[0195] In some embodiments, the physical channel may be the physical channel corresponding to the first control information, such as the physical channel scheduled or activated by the first control information.

[0196] In other embodiments, the second beam information is beam information used to transmit physical signals. The physical signals can be physical signals corresponding to the first control information, such as physical signals scheduled or activated by the first control information.

[0197] In some embodiments, the first device is a terminal device, the second device is a network device, and the physical channel can include a PDSCH, a PUSCH, a SPS PDSCH, or a CG PUSCH. The physical signal can include a CSI-RS or an SRS.

[0198] In other embodiments, the first device is a first terminal device, the second device is a second terminal device, and the physical channel can include a physical sidelink channel, for example, a physical sidelink shared channel (PSSCH). The physical signal can include a reference signal on a sidelink.

[0199] In some embodiments, the third beam information associated with the response information can be beam information used to transmit the response information. Alternatively, the third beam information associated with the response information can be information of a third reference signal having a QCL relationship with the response information or a physical channel or a physical signal carrying the response information, for example, an index of the third reference signal.

[0200] In some embodiments, the third beam information is used by the first device to determine a beam used in a channel access procedure, and / or the third beam information is used to determine a beam used by the first device to transmit the response information.

[0201] For example, the channel access procedure can be a channel access procedure corresponding to transmission of the response information by the first device.

[0202] In some embodiments of the present application, the first beam information includes at least one of the following:

[0203] Transmission configuration indication (TCI) indication information associated with the first control information;

[0204] Reference signal information associated with the first control information.

[0205] In some embodiments, the TCI indication information can be used to indicate a quasi-co-located (QCL) reference signal corresponding to a downlink signal or a downlink channel, so that a receiving end can perform reception of the downlink signal or the downlink channel based on the QCL reference signal.

[0206] In some embodiments, the TCI indication information is used to indicate at least one of the following information:

[0207] A TCI state ID, used to identify a TCI state;

[0208] QCL information 1;

[0209] QCL information 2.

[0210] Wherein, one QCL information contains the following information:

[0211] QCL type (type) configuration, which can be one of QCL type A, QCL type B, QCL type C, QCL type D;

[0212] QCL reference signal configuration, including the cell ID where the reference signal is located, BWP ID and the identification of the reference signal (which can be CSI-RS resource ID or SSB index).

[0213] Wherein, the QCL type of at least one of QCL information 1 and QCL information 2 must be one of type A, type B, type C, and the QCL type of the other QCL information (if configured) must be QCL type D.

[0214] Wherein, the definition of different QCL type configurations is as follows:

[0215] 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread};

[0216] 'QCL-TypeB': {Doppler shift, Doppler spread};

[0217] 'QCL-TypeC': {Doppler shift, average delay};

[0218] 'QCL-TypeD': {Spatial Rx parameter}.

[0219] As an example, the reference signal information associated with the first control information can include a reference signal index associated with the first control information.

[0220] In some embodiments, the second device is a network device, and the first beam information can include a Synchronization Signal Block (SSB) index or a Channel State Information Reference Signal (CSI-RS) index associated with the first control information.

[0221] In some embodiments, the first device is configured with a first beam information set including a plurality of first beam information, and the beam indication information is used to indicate a target first beam information from the first beam information set. For example, each first beam information corresponds to a respective index, and the beam indication information can be used to indicate the index of the target first beam information.

[0222] In some embodiments of the present application, the first beam information set is configured by the network device or predefined.

[0223] In some other embodiments, the first device is configured with a first beam information set including one first beam information, and the first device can use the configured one first beam information. In this case, the beam indication information is not used to indicate the first beam information, or the first beam information is not included in the beam indication information, i.e., the second device does not need to indicate the first beam information to the first device.

[0224] In some embodiments of the present application, the second beam information includes at least one of the following:

[0225] TCI indication information associated with the physical channel transmission,

[0226] reference signal information associated with the physical channel transmission.

[0227] In some embodiments, the reference signal information associated with the physical channel can include a reference signal index associated with the physical channel.

[0228] In some embodiments, the second device is a network device, and the second beam information can include a Synchronization Signal Block (SSB) index or a Channel State Information Reference Signal (CSI-RS) index associated with the physical channel transmission.

[0229] In some embodiments, the first device is configured with a second set of beam information, the second set of beam information including a plurality of second beam information, and the beam indication information is used to indicate a target second beam information from the second set of beam information. For example, each second beam information corresponds to a respective index, and the beam indication information can be used to indicate the index of the target second beam information. In some embodiments of the present application, the second set of beam information is configured by the network device or is predefined.

[0230] In some other embodiments, the first device is configured with a second set of beam information, the second set of beam information including one second beam information, and the first device can use the configured one second beam information. In this case, the beam indication information is not used to indicate the second beam information, or the second beam information is not included in the beam indication information, i.e., the second device does not have to indicate the second beam information to the first device.

[0231] In some embodiments of the present application, the third beam information includes reference signal information associated with the acknowledgement information.

[0232] In some embodiments, the reference signal information associated with the acknowledgement information can include a reference signal index associated with the acknowledgement information.

[0233] In some embodiments, the second device is a network device, and the third beam information can include a Sounding Reference Signal (SRS) index.

[0234] In some embodiments, the first device is configured with a third set of beam information, the third set of beam information including a plurality of third beam information, and the beam indication information is used to indicate a target third beam information from the third set of beam information. For example, each third beam information corresponds to a respective index, and the beam indication information can be used to indicate the index of the target third beam information. In some embodiments of the present application, the third set of beam information is configured by the network device or is predefined.

[0235] In some other embodiments, the first device is configured with a third set of beam information, the third set of beam information including one third beam information, and the first device can use the configured one third beam information. In this case, the beam indication information is not used to indicate the third beam information, or the third beam information is not included in the beam indication information, i.e., the second device does not have to indicate the third beam information to the first device.

[0236] In some embodiments of the present application, the beam indication information further comprises second indication information, wherein the second indication information is used to indicate that the third beam information is associated with the first beam information, or the third beam information is associated with the second beam information. Alternatively, the second indication information is used to indicate that the channel access procedure corresponding to the response information is associated with the first beam information, or the channel access procedure corresponding to the response information is associated with the second beam information.

[0237] In some embodiments of the present application, the second indication information is used to indicate that the channel access procedure corresponding to the response information is associated with the first beam information or the second beam information, or the second indication information is used to indicate that the channel access procedure corresponding to the response information is associated with the third beam information. In some embodiments, when the second indication information indicates that the channel access procedure corresponding to the response information is associated with the first beam information or the second beam information, whether the channel access procedure corresponding to the response information is associated with the first beam information or the second beam information is determined according to a higher layer parameter.

[0238] In some embodiments, the association between the third beam information and the first beam information can mean that the third beam information corresponds to the first beam information, or the third beam information is determined according to the first beam information.

[0239] In some embodiments, the association between the third beam information and the second beam information can mean that the third beam information corresponds to the second beam information, or the third beam information is determined according to the second beam information.

[0240] For example, the second indication information comprises 1 bit, when the 1 bit indicates a preset value such as "1", it is used to indicate that the third beam information is associated with the first beam information; when the 1 bit indicates another preset value such as "0", it is used to indicate that the third beam information is associated with the second beam information.

[0241] In some embodiments, the first device completes the channel access procedure corresponding to the response information according to at least one of the first beam information, the second beam information, the third beam information and the second indication information. For example, if the second indication information indicates that the third beam information is associated with the first beam information, the first device determines the beam used in the channel access procedure corresponding to the response information according to the first beam information; or, if the second indication information indicates that the third beam information is associated with the second beam information, the first device determines the beam used in the channel access procedure corresponding to the response information according to the second beam information.

[0242] In some embodiments of the present application, the beam indication information further comprises third indication information, wherein the third indication information is used to indicate at least one of the following information:

[0243] whether the first beam information is device-specific beam information or common beam information;

[0244] whether the second beam information is device-specific beam information or common beam information;

[0245] whether the third beam information is device-specific beam information or common beam information.

[0246] For example, the third indication information comprises 3 bits, and when the 3 bits correspond to the first beam information, the second beam information and the third beam information respectively, the value of each bit is used to indicate whether the corresponding beam information is device-specific beam information or common beam information. For example, when the bit corresponding to the first beam information takes a preset value such as "1", it is used to indicate that the first beam information is device-specific beam information; and when the bit indicates another preset value such as "0", it is used to indicate that the first beam information is common beam information.

[0247] In some embodiments of the present application, the response resource indication information is used to determine at least one of the following information:

[0248] resource information, wherein the resource information is used to determine a response resource for transmitting the response information;

[0249] first time domain location information, wherein the first time domain location information is used to determine a time domain location of the response resource;

[0250] downlink allocation indication information, wherein the downlink allocation indication information is used to determine a location of the response information in a feedback codebook; and

[0251] power control information, wherein the power control information is used to determine a transmission power of the response information.

[0252] In some embodiments, the response resource comprises a physical uplink control channel (PUCCH) resource, and the resource information comprises PUCCH resource indication information, such as time domain location information and / or frequency domain location information of the PUCCH resource.

[0253] In some embodiments, the response resource comprises a physical sidelink feedback channel (PSFCH), and the resource information comprises PSFCH resource indication information, such as time domain location information and / or frequency domain location information of the PSFCH resource.

[0254] In some embodiments, the response resource comprises a PUCCH resource, and the first time domain location information comprises HARQ feedback timing indication information.

[0255] In some embodiments, the response resource comprises a SRS resource, and the resource information comprises SRS resource indication information, e.g., time domain location information of the SRS resource, and / or frequency domain location information of the SRS resource, and / or SRS index information. The time domain location information of the SRS resource comprises the number of symbols included in the SRS in a corresponding time slot.

[0256] In some embodiments, the response resource comprises a PUCCH resource, and the first time domain location information comprises HARQ feedback timing indication information.

[0257] As an example, the HARQ feedback timing indication information is used to indicate a value in a HARQ feedback timing set. The HARQ feedback timing set can be pre-defined or configured by the network device, and the HARQ feedback timing set comprises at least one K1 value.

[0258] If the HARQ feedback timing set comprises only one K1 value, the HARQ feedback timing indication can not be included in the first control information, and the time domain location of the HARQ feedback resource is determined according to the K1 value in the HARQ feedback timing set.

[0259] For example, the HARQ feedback timing set is pre-defined, and the pre-defined value is {1, 2, 3, 4, 5, 6, 7, 8}. The HARQ feedback timing indication information comprises 3 bits, and the 3 bits of indication information are one-to-one mapped with the 8 values. Specifically, when the HARQ feedback timing indication information is 000, it represents K1 = 1; when the HARQ feedback timing indication information is 001, it represents K1 = 2, and so on.

[0260] For another example, the network device configures the HARQ feedback timing set to comprise 4 values, and the HARQ feedback timing indication information comprises 2 bits. When the HARQ feedback timing indication information is 00, it indicates the first value in the HARQ feedback timing set; when the HARQ feedback timing indication information is 01, it indicates the second value in the HARQ feedback timing set, and so on.

[0261] In some embodiments of the present application, the PUCCH resource is used to transmit PUCCH format 0.

[0262] In some embodiments, the response resource comprises a PSFCH resource, and the first time domain location information comprises HARQ feedback timing indication information.

[0263] In some other embodiments, the response resource comprises a PRACH resource, and the first time domain location information comprises a random access channel transmission opportunity corresponding to the PRACH resource.

[0264] In yet some other embodiments, the response resource comprises an SRS resource, and the first time domain location information comprises time unit information corresponding to the SRS resource. The time unit information corresponding to the SRS resource comprises at least one of a time slot corresponding to the SRS, a starting symbol of the SRS in the corresponding time slot, and the like.

[0265] In some embodiments of the present application, if the first device needs to feed back response information corresponding to a plurality of frequency domain resources through a physical channel or a physical signal, the response information corresponding to the plurality of frequency domain resources can be transmitted through a PUCCH. If the first device needs to feed back response information corresponding to one frequency domain resource through a physical channel or a physical signal, the response information corresponding to the one frequency domain resource can be transmitted through a PUCCH or a PRACH or an SRS.

[0266] By allowing the response information to be transmitted through different types of resources, flexibility is provided for resource configuration of the network device. For example, the network device can flexibly configure the resource type corresponding to the response information of different terminal devices according to the service load of the terminal devices in the cell, so that the response resources of different terminal devices can be multiplexed, and the spectrum resource utilization efficiency is improved.

[0267] In some embodiments, the downlink assignment indication (DAI) information can comprise DAI counter (C-DAI) information and / or DAI total number (T-DAI) information.

[0268] In some embodiments, the first control information is a first DCI, the first DCI is used for scheduling a first PDSCH transmission, and the first DCI further includes second time domain location information, wherein the resource information and the first time domain location information are used to determine a first PUCCH resource, the resource information and the second time domain location information are used to determine a second PUCCH resource, the first PUCCH resource is used to transmit the response information, and the second PUCCH resource is used to transmit HARQ-ACK information corresponding to the first PDSCH. That is, in the embodiments of the present application, the PUCCH resources used to transmit the HARQ-ACK information and the response information of the PDSCH can be determined according to the same resource information, and the two are only distinguished by different time domain location information.

[0269] In some embodiments of the present application, the channel access indication information is used to determine at least one of the following information:

[0270] a channel access mode corresponding to the response information; and

[0271] a cyclic prefix extension (CPE) length corresponding to the response information.

[0272] In some embodiments, the CPE length corresponding to the response information is the length of the extended CP of the first symbol of the response information.

[0273] In some embodiments, the channel access mode corresponding to the response information is one of the following: channel access without channel detection, first type of channel access, and second type of channel access.

[0274] In some embodiments, the first type of channel access is a channel access mode of randomly backoff multiple listening slots.

[0275] In some embodiments, the second type of channel access is a channel access mode of fixed listening slot length.

[0276] In some embodiments, the first type of channel access can include a first type of channel access corresponding to directional channel detection or a first type of channel access corresponding to omnidirectional channel detection.

[0277] In some embodiments, the second type of channel access can include a second type of channel access corresponding to directional channel detection or a second type of channel access corresponding to omnidirectional channel detection.

[0278] That is, the channel access mode corresponding to the response information can be one of the following:

[0279] channel access without channel detection, first type of channel access corresponding to directional channel detection, second type of channel access corresponding to directional channel detection, first type of channel access corresponding to omni-directional channel detection, second type of channel access corresponding to omni-directional channel detection.

[0280] In some embodiments, the channel access indication information comprises indication information for indicating the channel access mode and / or indication information for indicating the CPE length.

[0281] In some embodiments, the channel access indication information comprises indication information for indicating the channel access mode and indication information for indicating the CPE length; or the channel access indication information is used for indicating the channel access mode and the CPE length jointly coded.

[0282] In some embodiments, the channel access mode and the CPE length can be indicated by different information or can also be indicated by the same information.

[0283] For example, the channel access indication information is used for indicating first channel access indication information, the first channel access indication information corresponds to a group of configurations in a first configuration set, each group of configurations in the first configuration set comprises a channel access mode and / or a length of extended cyclic prefix (CPE).

[0284] In some embodiments of the present application, a group of configurations in the first configuration set is used for indicating that the channel access mode is channel access without channel detection and / or the CPE length is 0.

[0285] For another example, the channel access indication information is used for indicating first channel access indication information and second channel access indication information, the first channel access indication information is used for indicating one of at least one channel access mode, and the second channel access indication information is used for indicating one of at least one CPE length.

[0286] In some embodiments, the channel detection beam type corresponding to the channel access mode comprises omni-directional channel detection or directional channel detection. In some embodiments, the channel detection beam type can be omni-directional or directional. In the directional case, the channel detection beam direction can be a specific associated beam direction or a reference signal index or TCI information.

[0287] In some embodiments, the channel detection beam type corresponding to the channel access mode determined according to the channel access indication information is determined based on a high-layer parameter configured by a network device or indicated by the channel access indication information or preset; and / or the channel detection beam direction (i.e. the beam used in the channel access process) is determined based on a high-layer parameter configured by a network device or indicated by the channel access indication information or preset.

[0288] In some embodiments, the first control information is a first DCI, wherein the first DCI is used for scheduling a first PDSCH transmission, and the channel access manner determined according to the channel access indication information is also used for transmitting HARQ-ACK information corresponding to the first PDSCH.

[0289] In some other embodiments, the first DCI is used for scheduling a first PUSCH transmission, and the channel access manner is also used for transmitting the first PUSCH.

[0290] In some embodiments, if the channel access manner corresponding to the HARQ-ACK information of the first PDSCH is the channel access corresponding to directional channel detection, the beam used in the channel access process of the HARQ-ACK information of the first PDSCH is the same as the beam used in the channel access process of the response information; or the beam used in the channel access process of the HARQ-ACK information of the first PDSCH is determined according to the beam indication information.

[0291] In some other embodiments, if the channel access manner corresponding to the first PUSCH is the channel access corresponding to directional channel detection, the beam used in the channel access process of the first PUSCH is the same as the beam used in the channel access process of the response information; or the beam used in the channel access process of the first PUSCH is determined according to the beam indication information.

[0292] In some embodiments of the present application, when the first device determines to send the response information (such as ACK information) to the second device, if the channel access corresponding to the response information is successful, the first device sends the response information to the second device; if the channel access corresponding to the response information fails, the first device does not send the response information to the second device.

[0293] For the second device, if the second device receives the response information (such as ACK information), it is determined that wireless communication can be performed to the first device, such as downlink transmission or sidelink transmission. If the second device receives NACK information or does not receive any response information, it can be determined that wireless communication is not performed to the first device, such as downlink transmission or sidelink transmission.

[0294] In some embodiments, for the case that channel detection needs to be performed for the transmission of the second device to the first device, the second device needs to perform channel detection before transmission, and if the channel detection is successful, wireless communication can be performed to the first device, such as downlink transmission or sidelink transmission.

[0295] In some embodiments, the channel access manner corresponding to when the second device sends the first control information to the first device is determined based on a higher layer configuration parameter and / or is predefined. That is, the channel access manner used by the second device to send the first control information to the first device can be determined according to a higher layer configuration parameter or is predefined.

[0296] To sum up, the embodiments of the present application can be used for information interaction in the receiving side assisted channel detection process by designing the format used for sending the transmission request information. For example, the first control information can be sent through a dedicated control channel of the first device, and the first control information can include the transmission request information of the second device or can include the scheduling information of the first device or can include both the transmission request information and the scheduling information of the first device. After receiving the transmission request corresponding to the first device in the first control information, the first device can determine the resource of the response information, the beam information corresponding to the response information and other related information according to the transmission request information, so as to realize the information interaction between the first device and the second device.

[0297] The preferred embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the specific details in the above-described embodiments. Within the technical concept range of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all belong to the protection range of the present application. For example, in the above-described specific embodiments, various specific technical features described in the embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combination manners are not described again in the present application. For another example, various different embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the present application, and it should also be considered as the disclosed content of the present application. For another example, under the premise of no conflict, each embodiment described in the present application and / or the technical features in each embodiment can be combined with any prior art, and the technical solutions obtained after combination should also fall within the protection range of the present application.

[0298] It should also be understood that the size of the serial number of the above-mentioned processes does not mean the order of execution in various method embodiments of the present application, and the execution order of the processes should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, the terms "downlink", "uplink" and "sidelink" are used to represent the transmission direction of signals or data, wherein "downlink" is used to represent the transmission direction of signals or data as the first direction from the station to the user equipment of the cell, "uplink" is used to represent the transmission direction of signals or data as the second direction from the user equipment of the cell to the station, and "sidelink" is used to represent the transmission direction of signals or data as the third direction from user equipment 1 to user equipment 2. For example, "downlink signal" represents that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" is only used to describe the association relationship of the associated objects, and indicates that there can be three relationships. Specifically, A and / or B can represent three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0299] The method embodiments of the present application are described in detail above FIG. 3 , and the device embodiments of the present application are described in detail below FIGS. 4-7 . It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0300] FIG. 4 A schematic block diagram of a device 400 for wireless communication according to embodiments of the present application is shown. As shown in FIG. 4 , the device 400 includes:

[0301] The communication unit 410 is configured to receive first control information transmitted by a second device, the first control information being used by the device to determine whether the second device initiates a request-acknowledgement process to the device.

[0302] The processing unit 420 is configured to determine whether to send acknowledgement information to the second device according to the first control information.

[0303] In some embodiments, the processing unit 420 is specifically configured to:

[0304] If it is determined according to the first control information that the second device initiates the request-acknowledgement process to the device, it is determined to send the acknowledgement information to the second device; or,

[0305] If it is determined according to the first control information that the second device does not initiate the request-acknowledgement process to the device, it is determined not to send the acknowledgement information to the second device; or,

[0306] determining to send the second device the response information indicating that transmission is not allowed, if it is determined according to the first control information that the second device does not initiate the request-acknowledgement procedure to the first device.

[0307] In some embodiments, the device comprises a terminal device, the second device comprises a network device, and the first control information corresponds to a first downlink control information (DCI) format.

[0308] In some embodiments, the first DCI format is one of the following DCI formats:

[0309] a DCI format for scheduling a physical downlink shared channel (PDSCH);

[0310] a DCI format for activating a semi-persistent scheduling (SPS) PDSCH;

[0311] a DCI format for releasing the SPS PDSCH;

[0312] a DCI format for scheduling a physical uplink shared channel (PUSCH);

[0313] a DCI format for activating a configured grant (CG) PUSCH;

[0314] a DCI format for releasing the CG PUSCH;

[0315] a DCI format for activating a configured grant physical sidelink channel; and

[0316] a DCI format for releasing the configured grant physical sidelink channel.

[0317] In some embodiments, the device comprises a first terminal device, the second device comprises a second terminal device, and the first control information corresponds to a first sidelink control information (SCI) format.

[0318] In some embodiments, the first SCI format comprises an SCI format for scheduling a physical sidelink shared channel (PSSCH).

[0319] In some embodiments, the processing unit 420 is further configured to:

[0320] determine whether the second device initiates the request-acknowledgement procedure to the device according to whether the first control information comprises transmission request information.

[0321] In some embodiments, the processing unit 420 is specifically configured to:

[0322] determining that the second device initiates the request-acknowledge procedure to the device if the transmission request information is included in the first control information; or

[0323] determining that the second device does not initiate the request-acknowledge procedure to the device if the transmission request information is not included in the first control information.

[0324] In some embodiments, whether the transmission request information is included in the first control information is determined according to a high-layer parameter or predefined.

[0325] In some embodiments, the transmission request information included in the first control information includes at least one of the following information:

[0326] first indication information, at least one frequency domain resource indication information, beam indication information, acknowledge resource indication information and channel access indication information, wherein the first indication information is used to indicate whether to initiate the request-acknowledge procedure.

[0327] In some embodiments, the first indication information is used to indicate that the second device initiates the request-acknowledge procedure to the device; or,

[0328] the first indication information is used to indicate that the second device does not initiate the request-acknowledge procedure to the device.

[0329] In some embodiments, the at least one frequency domain resource indication information is associated with at least one cell or at least one bandwidth part (BWP) or at least one frequency domain resource set.

[0330] In some embodiments, a first frequency domain resource indication information in the at least one frequency domain resource indication information is associated with a first cell or a first BWP or a first frequency domain resource set, and the first frequency domain resource indication information is used to indicate whether the second device initiates the request-acknowledge procedure to the first device on the first cell or the first BWP or the first frequency domain resource set, wherein the first cell is a cell corresponding to the first device, the first BWP is a BWP corresponding to the first cell, and the first frequency domain resource set is a frequency domain resource set corresponding to the first BWP.

[0331] In some embodiments, the first indication information is carried in a dedicated information field in the first control information; or,

[0332] the first indication information is indicated by a first state of a first information field in the first control information, wherein when a value of the first information field is the first state, the first information field is used to indicate that the request-acknowledge procedure is not initiated; or,

[0333] The first indication information is indicated by a value of part or all bits in the first control information being a second state, wherein the first indication information indicates not to initiate the request-acknowledgement procedure when the value of the part or all bits in the first control information is the second state.

[0334] In some embodiments, the beam indication information is used to determine at least one of the following information:

[0335] The first beam information associated with the first control information, the second beam information associated with a physical channel transmission, and the third beam information associated with the acknowledgement information, wherein the physical channel includes a physical channel corresponding to the first control information.

[0336] In some embodiments, the first beam information includes at least one of the following:

[0337] Transmission configuration indication (TCI) indication information associated with the first control information;

[0338] Reference signal information associated with the first control information.

[0339] In some embodiments, the second beam information includes at least one of the following:

[0340] TCI indication information associated with the physical channel transmission;

[0341] Reference signal information associated with the physical channel transmission.

[0342] In some embodiments, the third beam information includes reference signal information associated with the acknowledgement information.

[0343] In some embodiments, the beam indication information is used to determine the third beam information associated with the acknowledgement information, the third beam information is used to determine a beam used in a channel access procedure, and / or the third beam information is used to determine a beam used by the device to transmit the acknowledgement information.

[0344] In some embodiments, the beam indication information further includes second indication information, wherein the second indication information is used to indicate that the third beam information is associated with the first beam information, or the third beam information is associated with the second beam information.

[0345] In some embodiments, the beam indication information further includes third indication information, wherein the third indication information is used to indicate at least one of the following information:

[0346] Whether the first beam information is device-specific beam information or common beam information;

[0347] whether the third beam information is device-specific beam information or common beam information.

[0348] whether the third beam information is device-specific beam information or common beam information.

[0349] In some embodiments, the response resource indication information is used to determine at least one of the following information:

[0350] resource information used to determine a response resource for transmitting the response information;

[0351] first time domain location information used to determine a time domain location of the response resource;

[0352] downlink assignment indication information used to determine a location of the response information in a feedback codebook; and

[0353] power control information used to determine a transmission power for transmitting the response information.

[0354] In some embodiments, the response resource comprises a physical uplink control channel (PUCCH) resource, and the resource information comprises PUCCH resource indication information; or

[0355] the response resource comprises a physical random access channel (PRACH) resource, and the resource information comprises PRACH resource indication information; or

[0356] the response resource comprises a sounding reference signal (SRS) resource, and the resource information comprises SRS resource indication information.

[0357] In some embodiments, the response resource comprises a PUCCH resource, and the first time domain location information comprises hybrid automatic repeat request (HARQ) feedback timing indication information; or

[0358] the response resource comprises a PRACH resource, and the first time domain location information comprises a random access channel transmission opportunity corresponding to the PRACH resource;

[0359] the response resource comprises a SRS resource, and the first time domain location information comprises time unit information corresponding to the SRS resource.

[0360] In some embodiments, the first control information is a first DCI, the first DCI is used for scheduling a first PDSCH transmission, the first DCI further includes second time domain location information, wherein the resource information and the first time domain location information are used for determining a first PUCCH resource, the resource information and the second time domain location information are used for determining a second PUCCH resource, the first PUCCH resource is used for transmitting the response information, and the second PUCCH resource is used for transmitting HARQ-ACK information corresponding to the first PDSCH.

[0361] In some embodiments, the channel access indication information is used for determining at least one of the following information:

[0362] a channel access mode corresponding to the response information; and

[0363] an extended cyclic prefix (CPE) length corresponding to the response information.

[0364] In some embodiments, the channel access mode corresponding to the response information is one of the following: channel access without channel detection, first type of channel access, and second type of channel access.

[0365] In some embodiments, the first type of channel access is a channel access mode of random backoff for a plurality of listening slots; and / or

[0366] the second type of channel access is a channel access mode of fixed listening slot length.

[0367] In some embodiments, the channel access indication information includes indication information for indicating the channel access mode and / or indication information for indicating the CPE length.

[0368] In some embodiments, the first control information is a first DCI, wherein the first DCI is used for scheduling a first PDSCH transmission, and the channel access mode is further used for transmitting HARQ-ACK information corresponding to the first PDSCH; or

[0369] the first DCI is used for scheduling a first PUSCH transmission, and the channel access mode is further used for transmitting the first PUSCH.

[0370] In some embodiments, the first control information includes transmission request information, and a number of bits occupied by at least one information included in the transmission request information in the first control information is determined according to a higher layer parameter; or

[0371] the number of bits occupied by the at least one information included in the transmission request information in the first control information is predefined.

[0372] In some embodiments, the first control information is device-specific control information.

[0373] In some embodiments, the communication unit can be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit can be one or more processors.

[0374] It should be understood that the device 400 according to the embodiments of the present application can correspond to the first device in the method embodiments of the present application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively for realizing the corresponding process of the first device in the method 300 shown in the figure, which will not be repeated here for brevity. FIG. 3 The method 300 shown in the figure corresponds to the method of the present application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively for realizing the corresponding process of the first device in the method 300 shown in the figure, which will not be repeated here for brevity.

[0375] FIG. 5 is a schematic block diagram of a device for wireless communication according to an embodiment of the present application. FIG. 5 The device 500 shown in the figure includes:

[0376] The communication unit 510 is configured to send first control information to a first device, the first control information being used by the first device to determine whether the device 500 initiates a request-acknowledgement process to the first device.

[0377] In some embodiments, the first device includes a terminal device, the device includes a network device, and the first control information corresponds to a first downlink control information (DCI) format.

[0378] In some embodiments, the first DCI format is one of the following DCI formats:

[0379] a DCI format for scheduling a physical downlink shared channel (PDSCH);

[0380] a DCI format for activating a semi-persistent scheduling (SPS) PDSCH;

[0381] a DCI format for releasing an SPS PDSCH;

[0382] a DCI format for scheduling a physical uplink shared channel (PUSCH);

[0383] a DCI format for activating a configured grant (CG) PUSCH;

[0384] a DCI format for releasing a CG PUSCH;

[0385] a DCI format for activating a configured grant physical sidelink channel; and

[0386] a DCI format for releasing a configured grant physical sidelink channel.

[0387] In some embodiments, the first device comprises a first terminal device, the device comprises a second terminal device, and the first control information corresponds to a first sidelink control information (SCI) format.

[0388] In some embodiments, the first SCI format comprises an SCI format for scheduling a physical sidelink shared channel (PSSCH).

[0389] In some embodiments, whether the first control information comprises transmission request information is used to determine whether the device initiates the request-acknowledgement procedure to the first device.

[0390] In some embodiments, whether the transmission request information is included in the first control information is determined according to a higher layer parameter or predefined.

[0391] In some embodiments, the first control information comprises transmission request information, and the transmission request information comprises at least one of the following information:

[0392] The first indication information, at least one frequency domain resource indication information, beam indication information, acknowledgement resource indication information, and channel access indication information, wherein the first indication information is used to indicate whether to initiate the request-acknowledgement procedure.

[0393] In some embodiments, the first indication information is used to indicate that the device initiates the request-acknowledgement procedure to the first device; or,

[0394] The first indication information is used to indicate that the device does not initiate the request-acknowledgement procedure to the first device.

[0395] In some embodiments, the at least one frequency domain resource indication information is associated with at least one cell or at least one bandwidth part (BWP) or at least one frequency domain resource set.

[0396] In some embodiments, a first frequency domain resource indication information in the at least one frequency domain resource indication information is associated with a first cell or a first BWP or a first frequency domain resource set, and the first frequency domain resource indication information is used to indicate whether the second device initiates the request-acknowledgement procedure to the first device on the first cell or the first BWP or the first frequency domain resource set, wherein the first cell is a cell corresponding to the first device, the first BWP is a BWP corresponding to the first cell, and the first frequency domain resource set is a frequency domain resource set corresponding to the first BWP.

[0397] In some embodiments, the first indication information is carried in a dedicated information field in the first control information; or,

[0398] The first indication information is indicated by a first state of a first information field in the first control information, wherein when a value of the first information field is the first state, the first information field is used to indicate that the request-answer process is not initiated.

[0399] The first indication information is indicated by a value of part or all bits in the first control information being a second state, wherein when the value of the part or all bits in the first control information is the second state, the first indication information indicates that the request-answer process is not initiated.

[0400] In some embodiments, the beam indication information is used to determine at least one of the following information:

[0401] The first beam information associated with the first control information, second beam information associated with a physical channel transmission, and third beam information associated with the answer information, wherein the physical channel includes a physical channel corresponding to the first control information.

[0402] In some embodiments, the first beam information includes at least one of the following:

[0403] Transmission configuration indication (TCI) indication information associated with the first control information;

[0404] Reference signal information associated with the first control information.

[0405] In some embodiments, the second beam information includes at least one of the following:

[0406] TCI indication information associated with the physical channel transmission;

[0407] Reference signal information associated with the physical channel transmission.

[0408] In some embodiments, the third beam information includes reference signal information associated with the answer information.

[0409] In some embodiments, the beam indication information is used to determine the third beam information associated with the answer information, the third beam information is used by the first device to determine a beam used in a channel access procedure, and / or the third beam information is used to determine a beam used by the first device to transmit the answer information.

[0410] In some embodiments, the beam indication information further includes second indication information, wherein the second indication information is used to indicate that the third beam information is associated with the first beam information, or the third beam information is associated with the second beam information.

[0411] In some embodiments, the beam indication information further comprises third indication information, wherein the third indication information is used to indicate at least one of the following information:

[0412] whether the first beam information is device-specific beam information or common beam information;

[0413] whether the second beam information is device-specific beam information or common beam information; and

[0414] whether the third beam information is device-specific beam information or common beam information.

[0415] In some embodiments, the response resource indication information is used to determine at least one of the following information:

[0416] resource information used to determine a response resource for transmitting the response information;

[0417] first time domain location information used to determine a time domain location of the response resource;

[0418] downlink assignment indication information used to determine a location of the response information in a feedback codebook; and

[0419] power control information used to determine a transmission power for transmitting the response information.

[0420] In some embodiments, the response resource comprises a physical uplink control channel (PUCCH) resource, and the resource information comprises PUCCH resource indication information; or

[0421] the response resource comprises a physical random access channel (PRACH) resource, and the resource information comprises PRACH resource indication information; or

[0422] the response resource comprises a sounding reference signal (SRS) resource, and the resource information comprises SRS resource indication information.

[0423] In some embodiments, the response resource comprises a PUCCH resource, and the first time domain location information comprises hybrid automatic repeat request (HARQ) feedback timing indication information; or

[0424] the response resource comprises a PRACH resource, and the first time domain location information comprises a random access channel (RACH) transmission opportunity corresponding to the PRACH resource;

[0425] the response resource comprises an SRS resource, and the first time domain location information comprises time unit information corresponding to the SRS resource.

[0426] In some embodiments, the first control information is a first DCI, the first DCI is used for scheduling a first PDSCH transmission, the first DCI further includes second time domain location information, wherein the resource information and the first time domain location information are used for determining a first PUCCH resource, the resource information and the second time domain location information are used for determining a second PUCCH resource, the first PUCCH resource is used for transmitting the response information, and the second PUCCH resource is used for transmitting HARQ-ACK information corresponding to the first PDSCH.

[0427] In some embodiments, the channel access indication information is used for determining at least one of the following information:

[0428] a channel access mode corresponding to the response information; and

[0429] an extended cyclic prefix (CPE) length corresponding to the response information.

[0430] In some embodiments, the channel access mode corresponding to the response information is one of the following: channel access without channel detection, first type of channel access, and second type of channel access.

[0431] In some embodiments, the first type of channel access is a channel access mode of random backoff for a plurality of listening slots; and / or

[0432] the second type of channel access is a channel access mode of fixed listening slot length.

[0433] In some embodiments, the channel access indication information includes indication information for indicating the channel access mode and / or indication information for indicating the CPE length.

[0434] In some embodiments, the first control information is a first DCI, wherein the first DCI is used for scheduling a first PDSCH transmission, and the channel access mode is further used for transmitting HARQ-ACK information corresponding to the first PDSCH; or

[0435] the first DCI is used for scheduling a first PUSCH transmission, and the channel access mode is further used for transmitting the first PUSCH.

[0436] In some embodiments, the first control information includes transmission request information, and a number of bits occupied by at least one information included in the transmission request information in the first control information is determined according to a higher layer parameter; or

[0437] a number of bits occupied by at least one information included in the transmission request information in the first control information is predefined.

[0438] In some embodiments, the first control information is control information specific to the first device.

[0439] In some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0440] It should be understood that the device 500 according to the embodiments of this application may correspond to the second device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the device 500 are respectively for implementing FIG. 3 The corresponding process for the second device in method 300 shown will not be elaborated here for the sake of brevity.

[0441] FIG. 6 This is a schematic structural diagram of a communication device 600 provided in an embodiment of this application. FIG. 6 The communication device 600 shown includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0442] In some embodiments of this application, such as FIG. 6 As shown, the communication device 600 may further include a memory 620. The processor 610 can retrieve and run computer programs from the memory 620 to implement the methods described in this embodiment.

[0443] The memory 620 can be a separate device independent of the processor 610, or it can be integrated into the processor 610.

[0444] In some embodiments of this application, such as FIG. 6 As shown, the communication device 600 may also include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0445] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

[0446] In some embodiments of this application, the communication device 600 may specifically be a network device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0447] In some embodiments of the present application, the communication device 600 can be specifically the first device or the second device of the embodiments of the present application, and the communication device 600 can implement the corresponding procedures in the various methods of the embodiments of the present application implemented by the first device or the second device. For the sake of brevity, details are not repeated here.

[0448] When the communication device 600 is the first device, the transceiver 630 can correspond to the communication unit 410 of the device 400, and the processor 610 can correspond to the processing unit 420 in the device 400.

[0449] When the communication device 600 is the second device, the transceiver 630 can correspond to the communication unit 510 of the device 500.

[0450] FIG. 7 FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application. FIG. 7 As shown in the figure, the chip 700 includes a processor 710, which can call and run a computer program from a memory to implement the method in the embodiments of the present application.

[0451] In some embodiments of the present application, as shown in the figure, the chip 700 can further include a memory 720. Wherein, the processor 710 can call and run a computer program from the memory 720 to implement the method in the embodiments of the present application. FIG. 7

[0452] Wherein, the memory 720 can be a separate device independent of the processor 710, or can be integrated in the processor 710.

[0453] In some embodiments of the present application, the chip 700 can further include an input interface 730. Wherein, the processor 710 can control the input interface 730 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

[0454] In some embodiments of the present application, the chip 700 can further include an output interface 740. Wherein, the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

[0455] In some embodiments of the present application, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding procedures in the various methods of the embodiments of the present application implemented by the network device. For the sake of brevity, details are not repeated here.

[0456] ​In some embodiments of the present application, the chip can be applied to the first device or the second device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the first device or the second device in each method of the embodiments of the present application. For brevity, details are not repeated here.

[0457] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system chip, a system chip, a chip system or a system-on-chip chip, etc.

[0458] It should be understood that the processor of the embodiments of the present application can be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method embodiments can be completed by integrated logic circuits of hardware in the processor or instructions in the form of software. The processor mentioned above can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a ready-to-program gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can be any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as hardware code processing executed by the processor, or executed by a combination of hardware and software modules in the code processing processor. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register or other mature storage medium in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and combines the hardware to complete the steps of the above method.

[0459] It is to be understood that the memory in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. The volatile memory can be a random access memory (Random Access Memory, RAM) used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the system and method described herein is intended to include, but not limited to, these and any other suitable types of memory.

[0460] It should be understood that the above-mentioned memory is exemplary but not limiting, for example, the memory in the embodiments of the present application can also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and the like. That is, the memory in the embodiments of the present application is intended to include, but not limited to, these and any other suitable types of memory.

[0461] The embodiment of the present application further provides a computer readable storage medium for storing the computer program.

[0462] Optionally, the computer readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program makes the computer execute the corresponding process realized by the network device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0463] In some embodiments of the present application, the computer readable storage medium can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program makes the computer execute the corresponding process realized by the mobile terminal / terminal device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0464] The embodiment of the present application further provides a computer program product comprising computer program instructions.

[0465] Optionally, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions make the computer execute the corresponding process realized by the network device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0466] In some embodiments of the present application, the computer program product can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program instructions make the computer execute the corresponding process realized by the mobile terminal / terminal device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0467] The embodiment of the present application further provides a computer program.

[0468] Optionally, the computer program can be applied to the network device in the embodiment of the present application, and when the computer program runs on the computer, makes the computer execute the corresponding process realized by the network device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0469] In some embodiments of the present application, the computer program can be applied to the mobile terminal / terminal device in the embodiment of the present application, and when the computer program runs on the computer, makes the computer execute the corresponding process realized by the mobile terminal / terminal device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0470] Those skilled in the art can clearly understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0471] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0472] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0473] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0474] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit.

[0475] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0476] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising: Comprise: The first device receives the first control information sent by the second device, and the first control information is used for the first device to determine whether the second device initiates a request-answer process to the first device; The first device determines whether to send the second device according to the first control information The answer information, including: If it is determined according to the first control information that the second device does not initiate the request-answer process to the first device, the first device determines to send the second device The answer information, the answer information is used to indicate that transmission is not allowed; Wherein, the first control information includes transmission request information, the transmission request information includes first indication information and at least one frequency domain resource indication information, wherein the first indication information is used to indicate whether to initiate the request-answer process; Wherein, the first control information includes a first information field, and the first indication information is represented by the first state of the first information field in the first control information, wherein when the value of the first information field is the first state, the first indication information is read according to the first information field, and when the first information field is not the first state, the first information field is read according to the original meaning of the first information field; Wherein, the at least one frequency domain resource indication information is associated with at least one cell or at least one bandwidth part BWP or at least one frequency domain resource set, wherein the first frequency domain resource indication information in the at least one frequency domain resource indication information is associated with the first cell or the first BWP or the first frequency domain resource set, and the first frequency domain resource indication information is used to indicate whether the second device initiates the request-answer process to the first device on the first cell or the first BWP or the first frequency domain resource set, wherein the first cell is the cell corresponding to the first device, the first BWP is the BWP corresponding to the first cell, and the first frequency domain resource set is the frequency domain resource set corresponding to the first BWP; Wherein, the first control information includes a second information field, and the frequency domain resource indication information is indicated by the first state of the second information field in the first control information, and when the value of the second information field is the first state, the first information field is read according to the frequency domain resource indication information, and when the second information field is not the first state, the second information field is read according to the original definition of the second information field; Wherein, the transmission request information further includes beam indication information, wherein the beam indication information is used to determine the following information: the first beam information associated with the first control information, the second beam information associated with the physical channel transmission, and the third beam information associated with the answer information, wherein the physical channel includes the physical channel corresponding to the first control information.

2. The method of claim 1, wherein, The first device determines whether to send the second device according to the first control information The answer information, further comprising: If it is determined according to the first control information that the second device initiates the request-answer process to the first device, the first device determines to send the second device The answer information; or, If it is determined according to the first control information that the second device does not initiate the request-acknowledgement procedure to the first device, the first device determines not to send the acknowledgement information to the second device.

3. The method according to claim 1 or 2, characterized in that, The first device comprises a terminal device, and the second device comprises a network device, and the first control information corresponds to a first downlink control information (DCI) format.

4. The method of claim 3, wherein, The first DCI format is one of the following DCI formats: a DCI format for scheduling a physical downlink shared channel (PDSCH); a DCI format for activating a semi-persistent scheduling (SPS) PDSCH; a DCI format for releasing the SPS PDSCH; a DCI format for scheduling a physical uplink shared channel (PUSCH); a DCI format for activating a configured grant (CG) PUSCH; a DCI format for releasing the CG PUSCH; a DCI format for activating a configured grant physical sidelink channel; and a DCI format for releasing the configured grant physical sidelink channel.

5. The method according to claim 1 or 2, characterized in that, The first device comprises a first terminal device, and the second device comprises a second terminal device, and the first control information corresponds to a first sidelink control information (SCI) format.

6. The method of claim 5, wherein, The first SCI format comprises an SCI format for scheduling a physical sidelink shared channel (PSSCH).

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises: The first device determines whether the second device initiates the request-acknowledgement procedure to the first device according to whether the first control information comprises transmission request information.

8. The method of claim 7, wherein, The first device determines whether the second device initiates the request-acknowledgement procedure to the first device according to whether the first control information comprises transmission request information, comprising: If the transmission request information is comprised in the first control information, the first device determines that the second device initiates the request-acknowledgement procedure to the first device; or If the transmission request information is not comprised in the first control information, the first device determines that the second device does not initiate the request-acknowledgement procedure to the first device.

9. The method according to claim 7 or 8, characterized in that, Whether the transmission request information is comprised in the first control information is determined according to a higher layer parameter or predefined.

10. The method according to any one of claims 1-9, characterized in that, The transmission request information further comprises at least one of the following information: acknowledgement resource indication information and channel access indication information.

11. The method of claim 10, wherein, The first indication information is used to indicate that the second device initiates the request-acknowledgement procedure to the first device; or The first indication information is used to indicate that the second device does not initiate the request-acknowledgement procedure to the first device. The first indication information is carried in a dedicated information field in the first control information; or 12. The method of claim 10, wherein, When the first indication information is represented by a first state of a first information field in the first control information, the first information field is used to indicate that the request-acknowledgement procedure is not initiated when the first information field takes the first state; or ​ ​ The first indication information is represented by a second state of a part or all bits in the first control information, wherein the first control information indicates not to initiate the request-acknowledgement procedure when the part or all bits in the first control information are in the second state.

13. The method of claim 1, wherein, The first beam information comprises at least one of the following: Transmission configuration indication (TCI) indication information associated with the first control information; Reference signal information associated with the first control information.

14. The method of claim 1, wherein, The second beam information comprises at least one of the following: TCI indication information associated with the physical channel transmission; Reference signal information associated with the physical channel transmission.

15. The method of claim 1, wherein, The third beam information comprises reference signal information associated with the acknowledgement information.

16. The method of claim 1, wherein the third beam information is used by the first device to determine a beam used in a channel access procedure, and / or the third beam information is used to determine a beam used by the first device to transmit the acknowledgement information.

17. The method of claim 1, wherein, The beam indication information further comprises second indication information, wherein the second indication information is used to indicate that the third beam information is associated with the first beam information, or the third beam information is associated with the second beam information.

18. The method of claim 1, wherein, The beam indication information further comprises third indication information, wherein the third indication information is used to indicate at least one of the following: The first beam information is beam information dedicated to the first device or common beam information; The second beam information is beam information dedicated to the first device or common beam information; and The third beam information is beam information dedicated to the first device or common beam information.

19. The method according to any one of claims 10-18, characterized by, The acknowledgement resource indication information is used to determine at least one of the following: Resource information used to determine an acknowledgement resource for transmitting the acknowledgement information; First time domain location information used to determine a time domain location of the acknowledgement resource; Downlink assignment indication information used to determine a location of the acknowledgement information in a feedback codebook; and Power control information used to determine a transmit power for transmitting the acknowledgement information. The acknowledgement resource comprises a physical uplink control channel (PUCCH) resource, and the resource information comprises PUCCH resource indication information; or 20. The method of claim 19, wherein, The acknowledgement resource comprises a physical random access channel (PRACH) resource, and the resource information comprises PRACH resource indication information; or The acknowledgement resource comprises a sounding reference signal (SRS) resource, and the resource information comprises SRS resource indication information. The acknowledgement resource comprises a PUCCH resource, and the first time domain location information comprises hybrid automatic repeat request (HARQ) feedback timing indication information; or 21. The method of claim 20, wherein, The acknowledgement resource comprises a PRACH resource, and the first time domain location information comprises a random access channel (RACH) transmission opportunity corresponding to the PRACH resource; The acknowledgement resource comprises an SRS resource, and the first time domain location information comprises time unit information corresponding to the SRS resource. ​ 22. The method of claim 19, wherein, The first control information is first DCI, the first DCI is used for scheduling first PDSCH transmission, and the first DCI further includes second time domain location information, wherein the resource information and the first time domain location information are used for determining first PUCCH resources, the resource information and the second time domain location information are used for determining second PUCCH resources, the first PUCCH resources are used for transmitting the response information, and the second PUCCH resources are used for transmitting HARQ-ACK information corresponding to the first PDSCH.

23. The method of any one of claims 10 to 22, wherein, The channel access indication information is used to determine at least one of the following: a channel access mode corresponding to the response information; and, An extended cyclic prefix (CPE) length corresponding to the response information.

24. The method of claim 23, wherein, The channel access mode corresponding to the response information is one of the following: channel access without channel detection, first type channel access, and second type channel access.

25. The method of claim 24, wherein, The first type channel access is a channel access mode of random backoff for multiple listening slots; and / or, The second type channel access is a channel access mode of fixed listening slot length.

26. The method of claim 23, wherein, The channel access indication information includes indication information for indicating the channel access mode and / or indication information for indicating the CPE length.

27. The method of claim 23, wherein, The first control information is first DCI, wherein the first DCI is used for scheduling first PDSCH transmission, and the channel access mode is further used for transmitting HARQ-ACK information corresponding to the first PDSCH; or, The first DCI is used for scheduling first PUSCH transmission, and the channel access mode is further used for transmitting the first PUSCH.

28. The method of any one of claims 10-27, wherein, The transmission request information included in the first control information includes at least one type of information, and the number of bits occupied by the at least one type of information in the first control information is determined according to a higher layer parameter; or The number of bits occupied by the at least one type of information in the first control information is predefined.

29. The method of any one of claims 1-28, wherein, The first control information is control information dedicated to the first device.

30. A method of wireless communication, comprising: Comprise: The second device sends first control information to the first device, and the first control information is used by the first device to determine whether the second device initiates a request-response process to the first device; Wherein, when the first control information is used by the first device to determine that the second device does not initiate the request-response process to the first device, the second device further receives response information sent by the first device to the second device, and the response information is used to indicate that transmission is not allowed; Wherein, the transmission request information included in the first control information includes first indication information and at least one frequency domain resource indication information, wherein the first indication information is used to indicate whether to initiate the request-response process; The first control information includes a first information field, and the first indication information is represented by a first state of the first information field in the first control information. When the first information field is in the first state, the first information field is interpreted according to the first indication information; when the first information field is not in the first state, the first information field is interpreted according to the original meaning of the first information field. The at least one frequency domain resource indication information is associated with at least one cell or at least one bandwidth part (BWP) or at least one frequency domain resource set. The first frequency domain resource indication information in the at least one frequency domain resource indication information is associated with a first cell or a first BWP or a first frequency domain resource set. The first frequency domain resource indication information is used to indicate whether the second device initiates the request-answer process to the first device on the first cell or the first BWP or the first frequency domain resource set. The first cell is a cell corresponding to the first device, the first BWP is a BWP corresponding to the first cell, and the first frequency domain resource set is a frequency domain resource set corresponding to the first BWP. The first control information includes a second information field, and the frequency domain resource indication information is represented by a first state of the second information field in the first control information. When the second information field is in the first state, the first information field is interpreted according to the frequency domain resource indication information; when the second information field is not in the first state, the second information field is interpreted according to the original definition of the second information field. The transmission request information further includes beam indication information. The beam indication information is used to determine the following information: first beam information associated with the first control information, second beam information associated with physical channel transmission, and third beam information associated with the response information. The physical channel includes a physical channel corresponding to the first control information.

31. The method of claim 30, wherein, The first device includes a terminal device, the second device includes a network device, and the first control information corresponds to a first downlink control information (DCI) format.

32. The method of claim 31, wherein, The first DCI format is one of the following DCI formats: A DCI format for scheduling a physical downlink shared channel (PDSCH); A DCI format for activating a semi-persistent scheduling (SPS) PDSCH; A DCI format for releasing an SPS PDSCH; A DCI format for scheduling a physical uplink shared channel (PUSCH); A DCI format for activating a configured grant (CG) PUSCH; A DCI format for releasing a CG PUSCH; A DCI format for activating a configured grant physical sidelink channel; and A DCI format for releasing a configured grant physical sidelink channel.

33. The method of claim 30, wherein, The first device includes a first terminal device, the second device includes a second terminal device, and the first control information corresponds to a first sidelink control information (SCI) format.

34. The method of claim 33, wherein, The first SCI format includes an SCI format for scheduling a physical sidelink shared channel (PSSCH).

35. The method of any one of claims 30-34, wherein, Whether the first control information includes transmission request information is used to determine whether the device initiates the request-answer process to the first device.

36. The method of any one of claims 30-35, wherein, Whether the transmission request information is included in the first control information is determined according to a high-level parameter or predefined.

37. The method of any one of claims 30-36, wherein, The transmission request information further includes at least one of the following information: The response resource indication information and the channel access indication information.

38. The method of claim 37, wherein, The first indication information is used to indicate that the second device initiates the request-answer process to the first device. Or, The first indication information is used to indicate that the second device does not initiate the request-answer process to the first device.

39. The method of claim 37, wherein, The first indication information is carried in a dedicated information field in the first control information; or, The first indication information is represented by a first state of a first information field in the first control information, wherein when the first information field takes the first state, the first information field is used to indicate that the request-answer process is not initiated; or, The first indication information is represented by a second state of part or all bits in the first control information, wherein when the part or all bits in the first control information take the second state, the first control information indicates that the request-answer process is not initiated.

40. The method of claim 30, wherein, The first beam information includes at least one of the following: Transmission configuration indication (TCI) indication information associated with the first control information; Reference signal information associated with the first control information.

41. The method of claim 30, wherein, The second beam information includes at least one of the following: TCI indication information associated with the physical channel transmission; Reference signal information associated with the physical channel transmission.

42. The method of claim 30, wherein, The third beam information includes reference signal information associated with the response information.

43. The method of claim 30, wherein the third beam information is used by the first device to determine a beam used in a channel access procedure, and / or the third beam information is used to determine a beam used by the first device to transmit the response information.

44. The method of claim 30, wherein, The beam indication information further includes second indication information, wherein the second indication information is used to indicate that the third beam information is associated with the first beam information, or the third beam information is associated with the second beam information.

45. The method of claim 30, wherein, The beam indication information further includes third indication information, wherein the third indication information is used to indicate at least one of the following information: Whether the first beam information is device-specific beam information or common beam information of the first device; Whether the second beam information is device-specific beam information or common beam information of the first device; and Whether the third beam information is device-specific beam information or common beam information of the first device.

46. The method of any one of claims 37-45, wherein, The response resource indication information is used to determine at least one of the following information: Resource information used to determine a response resource for transmitting the response information; First time domain location information used to determine a time domain location of the response resource; Downlink assignment indication information used to determine a location of the response information in a feedback codebook; and Power control information used to determine a transmission power for transmitting the response information. ​ 47. The method of claim 46, wherein, The response resource includes a physical uplink control channel (PUCCH) resource, and the resource information includes PUCCH resource indication information; or The response resource includes a physical random access channel (PRACH) resource, and the resource information includes PRACH resource indication information; or The response resource includes an SRS resource, and the resource information includes SRS resource indication information.

48. The method of claim 46, wherein, The response resource includes a PUCCH resource, and the first time domain location information includes hybrid automatic repeat request (HARQ) feedback timing indication information; or The response resource includes a PRACH resource, and the first time domain location information includes a random access channel transmission opportunity corresponding to the PRACH resource. The response resource includes an SRS resource, and the first time domain location information includes time unit information corresponding to the SRS resource.

49. The method of claim 46, wherein, The first control information is first DCI, the first DCI is used for scheduling first PDSCH transmission, and the first DCI further includes second time domain location information, wherein the resource information and the first time domain location information are used for determining a first PUCCH resource, the resource information and the second time domain location information are used for determining a second PUCCH resource, the first PUCCH resource is used for transmitting the response information, and the second PUCCH resource is used for transmitting HARQ-ACK information corresponding to the first PDSCH.

50. The method of any one of claims 37-49, wherein, The channel access indication information is used for determining at least one of the following information: a channel access mode corresponding to the response information; and An extended cyclic prefix (CPE) length corresponding to the response information.

51. The method of claim 50, wherein, The channel access mode corresponding to the response information is one of the following: channel access without channel detection, first type channel access, and second type channel access.

52. The method of claim 51, wherein, The first type channel access is a channel access mode of randomly backoff multiple listening slots; and / or The second type channel access is a channel access mode of fixed listening slot length.

53. The method of claim 50, wherein, The channel access indication information includes indication information for indicating the channel access mode and / or indication information for indicating the CPE length.

54. The method of claim 50, wherein, The first control information is first DCI, wherein the first DCI is used for scheduling first PDSCH transmission, and the channel access mode is further used for transmitting HARQ-ACK information corresponding to the first PDSCH; or The first DCI is used for scheduling first PUSCH transmission, and the channel access mode is further used for transmitting the first PUSCH.

55. The method of any one of claims 37-54, wherein, The number of bits occupied by at least one information included in the transmission request information in the first control information is determined according to a high-level parameter; or The number of bits occupied by at least one information included in the transmission request information in the first control information is predefined.

56. The method of any one of claims 30-55, wherein, The first control information is control information dedicated to the first device.

57. A wireless communication device, characterized in that, Comprise: A communication unit configured to receive first control information transmitted by a second device, the first control information being used for determining whether the second device initiates a request-response process to the first device; a processing unit, configured to determine whether to send response information to the second device according to the first control information; wherein the processing unit is specifically configured to determine, according to the first control information, that the second device does not initiate the request-response process to the first device, and determine that the first device sends the response information to the second device, the response information being used to indicate that transmission is not allowed; wherein the first control information comprises transmission request information, and the transmission request information comprises first indication information and at least one frequency domain resource indication information, wherein the first indication information is used to indicate whether to initiate the request-response process; wherein the first control information comprises a first information field, and the first indication information is represented by a first state of the first information field in the first control information, wherein when the first information field takes the first state, the first information field is interpreted according to the first indication information, and when the first information field is not in the first state, the first information field is interpreted according to the original meaning of the first information field; wherein the at least one frequency domain resource indication information is associated with at least one cell or at least one bandwidth part (BWP) or at least one frequency domain resource set, wherein first frequency domain resource indication information in the at least one frequency domain resource indication information is used to indicate whether the second device initiates the request-response process to the first device on a first cell or a first BWP or a first frequency domain resource set, wherein the first cell is a cell corresponding to the first device, the first BWP is a BWP corresponding to the first cell, and the first frequency domain resource set is a frequency domain resource set corresponding to the first BWP; wherein the first control information comprises a second information field, and the frequency domain resource indication information is indicated by a first state of the second information field in the first control information, wherein when the second information field takes the first state, the first information field is interpreted according to the frequency domain resource indication information, and when the second information field is not in the first state, the second information field is interpreted according to the original definition of the second information field; wherein the transmission request information further comprises beam indication information, wherein the beam indication information is used to determine first beam information associated with the first control information, second beam information associated with physical channel transmission, and third beam information associated with the response information, wherein the physical channel comprises a physical channel corresponding to the first control information.

58. A wireless communication device, characterized in that, comprises: a communication unit, configured to send first control information to a first device, the first control information being used by the first device to determine whether a second device initiates a request-response process to the first device; wherein the first control information is used by the first device to determine that the second device does not initiate the request-response process to the first device, and the communication unit further receives response information sent by the first device, the response information being used to indicate that transmission is not allowed; The first control information includes transmission request information, and the transmission request information includes first indication information and at least one frequency domain resource indication information. The first indication information is used to indicate whether to initiate the request-answer process. The first control information includes a first information field, and the first indication information is represented by a first state of the first information field in the first control information. When the first information field has a first state, the first information field is interpreted according to the first indication information. When the first information field is not in the first state, the first information field is interpreted according to the original meaning of the first information field. The at least one frequency domain resource indication information is associated with at least one cell or at least one bandwidth part (BWP) or at least one frequency domain resource set. First frequency domain resource indication information in the at least one frequency domain resource indication information is associated with a first cell or a first BWP or a first frequency domain resource set. The first frequency domain resource indication information is used to indicate whether the second device initiates the request-answer process to the first device on the first cell or the first BWP or the first frequency domain resource set. The first cell is a cell corresponding to the first device. The first BWP is a BWP corresponding to the first cell. The first frequency domain resource set is a frequency domain resource set corresponding to the first BWP. The first control information includes a second information field, and the frequency domain resource indication information is indicated by a first state of the second information field in the first control information. When the second information field has a first state, the first information field is interpreted according to the frequency domain resource indication information. When the second information field is not in the first state, the second information field is interpreted according to the original definition of the second information field. The transmission request information further includes beam indication information. The beam indication information is used to determine the following information: first beam information associated with the first control information, second beam information associated with physical channel transmission, and third beam information associated with the response information. The physical channel includes a physical channel corresponding to the first control information.

59. An apparatus for wireless communication, the apparatus comprising: A processor and a memory for storing a computer program. The processor is configured to invoke and run the computer program stored in the memory to execute the method of any one of claims 1-29. A processor and a memory for storing a computer program. The processor is configured to invoke and run the computer program stored in the memory to execute the method of any one of claims 30-56.

60. An apparatus for wireless communication, the apparatus comprising: A processor is configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method of any one of claims 1-29. A computer program for causing a computer to execute the method of any one of claims 1-29.

61. A chip, comprising: Computer program instructions for causing a computer to execute the method of any one of claims 1-29. ​ 62. A computer-readable storage medium, characterized in that, ​ 63. A computer program product, characterized in that, ​ 64. A chip, comprising: comprising a processor for calling and running a computer program from a memory, causing a device in which the chip is installed to perform the method of any one of claims 30 to 56.

65. A computer-readable storage medium, comprising: A computer program for storing, the computer program causing a computer to perform the method of any one of claims 30 to 56.

66. A computer program product, characterised in that, comprising computer program instructions causing a computer to perform the method of any one of claims 30 to 56.

Images