WO2020135105A1 - Uplink transmission method, uplink transmission apparatus and terminal device - Google Patents

Abstract

Provided are an uplink transmission method, an uplink transmission apparatus and a terminal device, in order to improve data transmission performance. The method comprises: a terminal device receiving first indication information and second indication information, wherein the first indication information comprises resource information; the terminal device determining a first frequency domain interval according to the second indication information, and carrying out idle channel evaluation on the first frequency domain interval; and when it is detected that a channel is idle, the terminal device carrying out uplink transmission on a first resource of the first frequency domain interval, wherein the first resource of the first frequency domain interval is determined according to the resource information.

Description

Uplink transmission method, uplink transmission device, and terminal equipment

This application requires the priority of the Chinese patent application filed on December 24, 2018 in the Chinese Patent Office with the application number 201811582195.X and the application titled "Uplink Transmission Method, Uplink Transmission Device, and Terminal Equipment", all of which are The content is incorporated into this application by reference.

Technical field

The present application relates to the field of communication, and more specifically, to a method of uplink transmission, an apparatus of uplink transmission, and a terminal device.

Background technique

In order to improve spectrum utilization, wireless communication systems can transmit data in unlicensed frequency bands, and communication devices, such as terminal devices or network devices, can use unlicensed frequency band resources for data transmission in a competitive manner. Specifically, in order to solve the problem of reduced reception performance caused by interference, the communication device may perform a channel access process (or rather, listen before talking (LBT) before using unlicensed frequency band resources for data transmission. ) To access the channel, the channel can be occupied for a period of time after the channel access process is completed. The communication device may perform the channel access process through, for example, signal detection, energy detection (or power detection).

In some systems that use unlicensed frequency bands, for example, in the future 5th generation (5G) system or new radio (NR) system, wideband operation is deployed, a large bandwidth Supports multiple bandwidth parts (BWP or BP). Then, in a system that introduces a large-bandwidth operation, for example, in a new radio-unlicensed (NR-U) system, how to perform uplink transmission by a communication device is an urgent problem to be solved.

Summary of the invention

The present application provides an uplink transmission method, an uplink transmission device, and terminal equipment, with a view to improving data transmission performance.

In the first aspect, a method of uplink transmission is provided, which may be executed by a terminal device, or may be executed by a chip configured in the terminal device.

The method includes: receiving first indication information, the first indication information includes resource information; receiving second indication information; determining a first frequency domain interval according to the second indication information, and performing first channel access on the first frequency domain interval Process; according to the result of the first channel access process, uplink transmission is performed on the first resource in the first frequency domain interval, and the first resource is determined according to the resource information.

The first indication information may also be called first trigger information or trigger A, and the second indication information may also be called second trigger information or trigger B. The resource information in the first indication information may include, for example, frequency domain resource information, and the frequency domain resource information may include: bandwidth part (BWP) information, or subband information, or physical resources Block (physical resource block, PRB) information, etc., this is not limited.

The frequency domain interval may be a continuous interval (that is, continuous frequency domain resources) or a discontinuous interval (that is, discontinuous frequency domain resources). The frequency domain interval may be BWP or sub-band, and the frequency domain interval corresponds to a certain bandwidth, for example, 20 MHz (Mega Hertz, MHz).

The determined first frequency domain interval includes the resource indicated by the resource information. In other words, the terminal device determines the first frequency domain interval including the resource indicated by the resource information in the frequency domain interval indicated by the second indication information according to the second indication information.

It should be understood that the channel access process may also be referred to as a clear channel assessment (CCA) process, that is, used for channel assessment, such as listening before talking (LBT) (or detection first) The post-send mechanism competes for the use of resources in unlicensed frequency bands. When the channel is detected to be idle, the terminal device can send data; otherwise, the terminal device is not currently sending data on the channel.

Based on the above technical solution, the terminal device receives the first indication information and the second indication information, and determines the frequency domain interval (for example, denoted as the first channel access process) in the frequency domain according to the second indication information. A frequency domain interval), so that it can share the transmission opportunities of network devices, and it is easier to obtain the channel, which can improve the data transmission performance. In addition, the terminal device determines the resource for transmitting data according to the result of the channel access process and the resource information in the first indication information, so as to be able to communicate with the network device, where the resource for transmitting data may be an uplink transmission resource It may also be a downlink transmission resource, which is described in detail in the following embodiments.

With reference to the first aspect, in some implementation manners of the first aspect, the method further includes: performing a second channel access process on the second frequency domain interval, where the resource information corresponds to resources located on multiple frequency domain intervals, and The second frequency domain interval is a frequency domain interval other than the first frequency domain interval among the multiple frequency domain intervals; according to the result of the second channel access process, uplink transmission is performed on the second resource in the second frequency domain interval, The second resource is determined based on the resource information.

Based on the above technical solution, the terminal device performs a channel access process on multiple frequency domain intervals, so as to increase the possibility of acquiring an idle channel as much as possible for the terminal device to transmit data. Wherein, the data transmitted by the terminal device during uplink transmission on the first resource and the data transmitted by the terminal device during uplink transmission on the second resource may be the same data or different data. limited.

With reference to the first aspect, in some implementation manners of the first aspect, determining the first frequency domain interval according to the second indication information includes: the second indication information carries identification information of the first frequency domain interval, and determining the first A frequency domain interval; or, determining that the frequency domain interval carrying the second indication information is the first frequency domain interval.

Based on the above technical solution, the frequency domain interval (for example, denoted as the first frequency domain interval) may be indicated explicitly or implicitly (indirectly). Wherein, indicating the frequency domain interval explicitly includes: carrying the identification information of the frequency domain interval in the second indication information, so that the terminal device can determine the frequency domain interval according to the identification information. Implicitly or indirectly indicating the frequency domain interval includes: the terminal device determining the first frequency domain interval according to the frequency domain interval carrying the second indication information or the interval where the frequency domain is located.

With reference to the first aspect, in some implementations of the first aspect, the resource information includes information of the frequency domain resource that activates the bandwidth part BWP; or, the resource information includes information of the frequency domain resource of the subband that activates the BWP and the identifier of the subband Information; or, the resource information includes information of the frequency domain resource that activates the BWP subband.

Among them, a BWP includes at least one subband, and each subband corresponds to a certain bandwidth, for example, 20 MHz.

Based on the above technical solution, the resource information carried in the first indication information may have various forms. For example, the resource information includes information of at least one frequency domain resource that activates BWP. For another example, the resource information includes information of a frequency domain resource that activates at least one subband in the BWP, and carries identification information of the at least one subband. For another example, the resource information includes information of a frequency domain resource that activates at least one subband in the BWP. Wherein, if both the resource information and the second indication information include the identification information of the subband, the subband identification in the resource information includes the subband identification in the second indication information. It is described in the following examples.

With reference to the first aspect, in some implementation manners of the first aspect, the second indication information includes information about an absolute time domain position used for transmitting data; the method further includes: determining a resource for transmitting data according to the information about the absolute time domain position Position in the time domain.

Based on the above technical solution, the second indication information may also carry time domain resource information, and then the terminal device may determine the time domain resource for transmitting data according to the absolute time domain position information in the second indication information.

With reference to the first aspect, in some implementation manners of the first aspect, the second indication information includes information about the first offset, and the first offset corresponds to any one of the following: transmission parameters, subbands, BWP; method It also includes: determining the location of the resource for transmitting data in the time domain according to the first time and the information about the first offset, where the first time is the time when the second indication information is received.

The first offset may be used to indicate the offset between the time when the terminal device receives the second indication information and the time when the data is transmitted.

Based on the above technical solution, the second indication information may also carry information of the first offset, and the time domain resource for transmitting data is determined according to the first offset and the time when the second indication information is received.

With reference to the first aspect, in some implementation manners of the first aspect, the first indication information further includes indication information relative to the time domain location, and the indication information relative to the time domain location is used to indicate that the resource for transmitting data by the terminal device is in the time domain Relative position.

Based on the above technical solution, the first indication information may also carry indication information relative to the time domain position, that is, the relative position in the time domain of the resources of multiple terminal devices transmitting data, so even if the network device allocates resources to multiple terminal devices The positions in the frequency domain are the same, and there is no mutual interference between the multiple terminal devices, and multiplexing between the terminal devices in the time domain can be achieved. The relative position may be referred to as an offset, and the offset may correspond to a transmission parameter or subband or BWP.

With reference to the first aspect, in some implementation manners of the first aspect, the second indication information includes information about the first absolute time domain position; the method further includes: according to the indication information of the relative time domain position and the first absolute time domain position The information determines the location of the data transmission resource in the time domain.

With reference to the first aspect, in some implementations of the first aspect, the second indication information includes information about the second offset, and the second offset corresponds to any one of the following: transmission parameters, subbands, and BWP; The method further includes: determining the location of the resource for transmitting data in the time domain based on the first time, the information about the second offset, and the indication information relative to the time domain position, and the first time is the time when the second indication information is received.

Based on the above technical solution, the second indication information may carry the offset information, and the absolute time domain position (or the time domain range of the data transmitted by the terminal device) is determined according to the offset information and the time when the second indication information is received , And then determine the location of the time-domain resource for transmitting data according to the absolute time-domain location and the relative time-domain location. The offset can correspond to a transmission parameter, subband, or BWP, that is, an independent offset can be configured for different subbands, BWP, and transmission parameters, and the terminal device can determine the data used to transmit data according to the actual situation. The location of time domain resources.

With reference to the first aspect, in some implementation manners of the first aspect, the second indication information further includes a priority identifier.

Based on the above technical solution, the terminal device may determine whether trigger A (for example, recorded as the first indication information) is triggered according to the priority identifier in the second indication information. When the trigger of the terminal device is triggered, the terminal device is in the second The channel access process is performed on the first frequency domain interval in which the indication information is displayed or implicitly indicated.

With reference to the first aspect, in some implementation manners of the first aspect, the priority identifier includes any one of the following: an identifier of the terminal device, a BWP identifier, a service identifier, a logical channel identifier, and an identifier of a transmission parameter.

Based on the above technical solution, for different terminal devices, or for different BWPs, or for different services, or for different logical channels, or for different transmission parameters, etc., priority is carried in the second indication information Level identification, so that the terminal device whose priority level meets the requirements, or the BWP whose priority level meets the requirements, or the service whose priority level meets the requirements, or the logical channel whose priority level meets the requirements, or the transmission parameter whose priority level meets the requirements By using the above method, it is possible to realize a suitable terminal device or a suitable BWP or a suitable service or a suitable logical channel or a suitable transmission parameter.

In a second aspect, a method for receiving data is provided. The method may be executed by a network device, or may be executed by a chip configured in the network device.

The method includes: sending first indication information, the first indication information includes resource information; sending second indication information, the second indication information can be used to indicate a first frequency domain interval, and the first frequency domain interval is used by a terminal device to perform a channel Access process; receiving data sent by the terminal device using the first resource in the first frequency domain interval, and the first resource is determined according to the resource information.

The first indication information may also be called first trigger information or trigger A, and the second indication information may also be called second trigger information or trigger B. The resource information in the first indication information may include, for example, frequency domain resource information, and the frequency domain resource information may include: BWP information, or subband information, or physical resource block information, etc., which is not limited.

The frequency domain interval may be a continuous interval (that is, continuous frequency domain resources) or a discontinuous interval (that is, discontinuous frequency domain resources). The frequency domain interval may be BWP or subband, and the frequency domain interval corresponds to a certain bandwidth, for example, 20 MHz.

Based on the above technical solution, the network device sends the first indication information and the second indication information to the terminal device, which is convenient for the terminal device to determine the frequency domain interval for performing the channel access process according to the second indication information (for example, denoted as the first frequency domain interval), Therefore, the terminal device can share the transmission opportunity of the network device, and it is easier to obtain the channel. In addition, the resource carried by the data sent by the terminal device to the network device is determined according to the result of the channel access process and combined with the resource information in the first indication information. Through the above process, the terminal device can perform uplink transmission in a system that introduces bandwidth operation, which improves data transmission performance.

With reference to the second aspect, in some implementation manners of the second aspect, the second indication information can be used to indicate the first frequency domain interval, including: the second indication information carries identification information of the first frequency domain interval, and the identification information Used to indicate the first frequency domain interval.

With reference to the second aspect, in some implementations of the second aspect, the resource information includes frequency domain resource information that activates the bandwidth part of the BWP; or, the resource information includes frequency domain resource information and subband identification of the subband that activates the BWP Information; or, the resource information includes information of the frequency domain resource that activates the BWP subband.

With reference to the second aspect, in some implementations of the second aspect, the second indication information includes information about the absolute time domain position used to transmit the data.

With reference to the second aspect, in some implementation manners of the second aspect, the second indication information includes information about the first offset, and the first offset corresponds to any one of the following: transmission parameters, subbands, and BWP; The information of a time and the first offset can be used by the terminal device to determine the position of the resource for transmitting data in the time domain, where the first time is the time when the second indication information is sent.

With reference to the second aspect, in some implementation manners of the second aspect, the first indication information further includes indication information about a relative time domain location, and the indication information about the relative time domain location is used to indicate that the resource for transmitting data by the terminal device is in the time domain Relative position.

With reference to the second aspect, in some implementation manners of the second aspect, the second indication information includes information about the first absolute time domain position, and the indication information about the relative time domain position and the first absolute time domain position information can be used for the terminal The device determines the location of the data transmission resource in the time domain.

With reference to the second aspect, in some implementations of the second aspect, the second indication information includes information about the second offset, and the second offset corresponds to any one of the following: transmission parameters, subbands, BWP, and The time, the second offset information, and the indication information relative to the time domain position can be used for the terminal device to determine the position of the resource for transmitting data in the time domain, where the first time is the time when the second indication information is sent.

With reference to the second aspect, in some implementation manners of the second aspect, the second indication information further includes a priority identifier.

With reference to the second aspect, in some implementations of the second aspect, the priority identifier includes any one of the following: an identifier of the terminal device, a BWP identifier, a service identifier, a logical channel identifier, and an identifier of a transmission parameter.

In a third aspect, the present application provides an apparatus for uplink transmission, having a function to implement the terminal device behavior in any aspect of the above method, including a unit or component corresponding to the step or function described in the method of the first aspect (means). The steps or functions may be implemented by software, hardware, or a combination of hardware and software.

In a fourth aspect, the present application provides an apparatus for receiving data, having a function to implement the behavior of a network device in any aspect of the above method, which includes a unit or component corresponding to the step or function described in the method of the second aspect (means). The steps or functions may be implemented by software, hardware, or a combination of hardware and software.

In a fifth aspect, the present application provides an apparatus for uplink transmission, including a processor, which is connected to a memory, and the processor is used to read and execute a program stored in the memory to implement the method provided in the first aspect above .

Optionally, there are one or more processors and one or more memories.

Alternatively, the memory may be integrated with the processor, or the memory and the processor are provided separately.

In the specific implementation process, the memory may be non-transitory (non-transitory) memory, such as read-only memory (read only memory (ROM), which may be integrated with the processor on the same chip, or may be set in different On the chip, the embodiments of the present application do not limit the type of memory and the manner of setting the memory and the processor.

It should be understood that the related data interaction process, for example, sending a configuration message may be a process of outputting instruction information from the processor, and receiving capability information may be a process of receiving input capability information by the processor. Specifically, the processed output data may be output to the transmitter, and the input data received by the processor may come from the receiver. Among them, the transmitter and the receiver may be collectively referred to as a transceiver.

The device in the fifth aspect may be a chip, and the processor may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software At this time, the processor may be a general-purpose processor, implemented by reading software codes stored in a memory, the memory may be integrated in the processor, or may be located outside the processor and exist independently.

According to a sixth aspect, the present application provides an apparatus for receiving data, including a processor, connected to a memory, and the processor is used to read and execute a program stored in the memory to implement the method provided in the second aspect above .

Optionally, there are one or more processors and one or more memories.

Alternatively, the memory may be integrated with the processor, or the memory and the processor are provided separately.

In the specific implementation process, the memory may be non-transitory (non-transitory) memory, such as read-only memory (read only memory (ROM), which may be integrated with the processor on the same chip, or may be set in different On the chip, the embodiments of the present application do not limit the type of memory and the manner of setting the memory and the processor.

It should be understood that the related data interaction process, for example, sending a configuration message may be a process of outputting instruction information from the processor, and receiving capability information may be a process of receiving input capability information by the processor. Specifically, the processed output data may be output to the transmitter, and the input data received by the processor may come from the receiver. Among them, the transmitter and the receiver may be collectively referred to as a transceiver.

The device in the sixth aspect above may be a chip, and the processor may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software At this time, the processor may be a general-purpose processor, implemented by reading software codes stored in a memory, the memory may be integrated in the processor, or may be located outside the processor and exist independently.

In a seventh aspect, the present application provides an apparatus for uplink transmission, including a processor and an interface circuit. The processor is configured to communicate with other devices through the interface circuit and execute the method provided in the first aspect above.

Optionally, there are one or more processors and one or more memories.

In an eighth aspect, the present application provides a device for receiving data, including a processor and an interface circuit, the processor is configured to communicate with other devices through the interface circuit, and execute the method provided in the second aspect above.

Optionally, there are one or more processors and one or more memories.

In a ninth aspect, the present application provides a program that, when executed by a processor, is used to execute the method provided in the first aspect or the second aspect above.

According to a tenth aspect, the present application provides a program product, such as a computer-readable storage medium, including the program of the ninth aspect.

Based on the above technical solution, the terminal device receives the first indication information and the second indication information, and determines the frequency domain interval for the channel access process according to the second indication information, so that the transmission opportunities of the network device can be shared, and the channel is more easily obtained. In addition, the terminal device determines the resource for transmitting data according to the result of the channel access process and the resource information in the first indication information, so that it can communicate with the network device.

BRIEF DESCRIPTION

FIG. 1 is a schematic diagram of a communication system applicable to an embodiment of the present application;

2 is a schematic diagram of a network architecture applicable to an embodiment of the present application;

FIG. 3 is another schematic diagram of a network architecture applicable to an embodiment of the present application;

4 is a schematic diagram of a BWP applicable to an embodiment of this application;

5 is a schematic diagram of two-level scheduling applicable to the embodiment of the present application;

6 is a schematic interaction diagram of an uplink transmission method according to an embodiment of the present application;

7 is a schematic diagram of information indicating terminal device subbands or BWPs applicable to the embodiment of the present application;

8 is a schematic diagram of an uplink transmission method according to an embodiment of the present application;

9 is a schematic diagram of an uplink transmission method according to another embodiment of the present application;

10 is a schematic diagram of an uplink transmission method according to yet another embodiment of the present application;

11 is a schematic diagram of an uplink transmission method according to yet another embodiment of the present application;

12 is a schematic block diagram of an apparatus provided by an embodiment of the present application;

13 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

14 is a schematic structural diagram of a network device provided by an embodiment of the present application;

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

detailed description

The technical solutions in this application will be described below with reference to the drawings.

The technical solutions of the embodiments of the present application may be applied to various communication systems, such as, but not limited to, narrowband Internet of Things (NB-IoT), global mobile communication (GSM) systems , Code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service (GPRS), long-term evolution (long term evolution) , LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile communication system (universal mobile telecommunication system, UMTS), global interconnected microwave access ( Worldwide interoperability for microwave access (WiMAX) communication system, future 5th generation (5G) system or new radio (NR), etc.

FIG. 1 shows a schematic diagram of a communication system 100 applicable to an embodiment of the present application. As shown in FIG. 1, the terminal 130 accesses a wireless network to obtain services of an external network (such as the Internet) through the wireless network, or communicates with other terminals through the wireless network. The wireless network includes a RAN 110 and a core network (CN) 120, where the RAN 110 is used to access the terminal 130 to the wireless network, and the CN 120 is used to manage the terminal and provide a gateway for communication with an external network.

Among them, the terminal, also known as user equipment (user equipment (UE), mobile station (MS), mobile terminal (MT), etc.), is a device that provides voice/data connectivity to users. For example, a handheld device with a wireless connection function, or a vehicle-mounted device. At present, some examples of terminals are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, and augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, self-driving wireless terminals, wireless terminals in remote medical surgery, and smart grids Wireless terminals, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, etc.

The network device is a device in a wireless network, for example, a radio access network (RAN) node that connects a terminal to the wireless network. At present, some examples of RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (BSC), base transceiver station (BTS), home base station (eg, home evolved NodeB, or home Node B, HNB), baseband unit (base) , BBU), or wireless fidelity (Wifi) access point (access point, AP), etc. In a network structure, the network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node.

FIG. 2 shows a schematic diagram of a network architecture provided by an embodiment of the present application. As shown in Figure 2, the network architecture includes core network (CN) equipment and RAN equipment. The RAN equipment includes a baseband device and a radio frequency device. The baseband device can be implemented by one node or multiple nodes. The radio frequency device can be implemented independently from the baseband device, can also be integrated into the baseband device, or can be partly remote. Integrated in the baseband device. For example, in an LTE communication system, a RAN device (eNB) includes a baseband device and a radio frequency device, where the radio frequency device can be remotely arranged relative to the baseband device, such as a remote radio unit (RRU) remotely arranged relative to the BBU .

The communication between the RAN device and the terminal follows a certain protocol layer structure. For example, the control plane protocol layer structure may include a radio resource control (radio resource control (RRC) layer, a packet data convergence layer protocol (packet data convergence protocol, PDCP) layer, a radio link control (radio link control (RLC) layer, a media access The functions of protocol layer such as media access (MAC) layer and physical layer. The user plane protocol layer structure can include PDCP layer, RLC layer, MAC layer and physical layer protocol layer functions; in one implementation, the PDCP layer can also include a service data adaptation (service data adaptation (SDAP) layer .

The functions of these protocol layers may be implemented by one node, or may be implemented by multiple nodes; for example, in an evolved structure, RAN equipment may include a centralized unit (CU) and a distributed unit (DU), Multiple DUs can be centrally controlled by a CU. As shown in FIG. 2, CU and DU can be divided according to the protocol layer of the wireless network. For example, the functions of the PDCP layer and above are set in the CU, and the functions of the protocol layers below PDCP, such as the RLC layer and the MAC layer, are set in the DU.

RAN equipment can be implemented by a node to implement radio resource control (RRC), packet data convergence layer protocol (packet data convergence protocol, PDCP), radio link control (radio link control (RLC), and media access control ( The functions of the protocol layer such as Media Access (MAC); or multiple nodes can implement the functions of these protocol layers; for example, in an evolutionary structure, the RAN device may include a centralized unit (CU) and a distribution unit (CU) distributed, unit (DU), multiple DUs can be centrally controlled by a CU. As shown in FIG. 2, CU and DU can be divided according to the protocol layer of the wireless network. For example, the functions of the PDCP layer and above are set in the CU, and the functions of the protocol layers below PDCP, such as the RLC layer and the MAC layer, are set in the DU.

This division of the protocol layer is only an example, and it can also be divided at other protocol layers, for example, at the RLC layer, the functions of the RLC layer and above are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU; Or, in a certain protocol layer, for example, some functions of the RLC layer and the functions of the protocol layer above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer are set in the DU. In addition, it can also be divided in other ways, for example, according to delay, and the function that the processing time needs to meet the delay requirement is set in the DU, and the function that does not need to meet the delay requirement is set in the CU.

In addition, the radio frequency device can be remotely located, not placed in the DU, or integrated in the DU, or partly remotely and partially integrated in the DU, without any limitation here.

FIG. 3 shows another schematic diagram of a network architecture applicable to an embodiment of the present application. Compared with the architecture shown in FIG. 2, the control plane (CP) and user plane (UP) of the CU can also be separated and implemented into different entities, namely, the control plane CU entity (CU-CP entity) and the user plane CU entity. (CU-UP entity).

In the above network architecture, the signaling generated by the CU can be sent to the terminal through the DU, or the signaling generated by the terminal can be sent to the CU through the DU. The DU can pass the protocol layer encapsulation directly to the terminal or CU without parsing the signaling. If the transmission of such signaling between the DU and the terminal is involved in the following embodiments, at this time, the sending or receiving of the signaling by the DU includes such a scenario. For example, the signaling of the RRC or PDCP layer will eventually be processed as the signaling of the PHY layer and sent to the terminal, or converted from the received signaling of the PHY layer. Under this architecture, the RRC or PDCP layer signaling can also be considered to be sent by the DU, or sent by the DU and the radio frequency.

In the above embodiment, the CU is divided into network devices on the RAN side. In addition, the CU may also be divided into network devices on the CN side, which is not limited herein.

The devices in the following embodiments of the present application may be located in a terminal or a network device according to the functions they implement. When the above CU-DU structure is adopted, the network device may be a CU node, or a DU node, or a RAN device including a CU node and a DU node.

It should be understood that the foregoing FIGS. 1 to 3 are only exemplary descriptions, and should not constitute any limitation to the present application.

To facilitate understanding of the embodiments of the present application, the following first briefly introduces several concepts involved in the embodiments of the present application.

1. Licensed-assisted access technology: use the carrier assistance on the licensed frequency band to communicate with the carrier on the unlicensed frequency band.

Taking the LTE communication system as an example, the carrier aggregation (CA) configuration and structure are used to configure the carrier on the operator's licensed frequency band (for convenience of differentiation and description, referred to as the licensed carrier or licensed frequency band), and the licensed carrier In order to assist the use of the carrier on the unlicensed frequency band (referred to as an unlicensed carrier or unlicensed frequency band for convenience of distinction and description) for communication. That is to say, the communication device can use the licensed carrier as the primary component carrier (PCC) or the primary cell (PCell) as the CA, and the unlicensed carrier as the secondary component carrier (SCC) as the primary component carrier (PCell) ) Or secondary cell (SCell). Therefore, communication devices can use licensed carriers to inherit the traditional advantages of wireless communication in the LTE system, such as advantages in mobility, security, quality of service, and simultaneous handling of multi-user scheduling, and can also achieve network capacity offload by using unlicensed carriers The purpose is to reduce the load of the licensed carrier.

2. Unlicensed frequency band:

Simply put, unlicensed bands are frequency bands that can be used without official restrictions. Unlicensed bands are relative to licensed bands. The essence of resource sharing on unlicensed frequency bands is to only specify the limits on the transmission power, out-of-band leakage and other indicators for the use of a specific frequency spectrum to meet the basic coexistence requirements between multiple devices that share the frequency band. During the process, when the terminal device transmits signals to the access network device in the cell through the channel of the unlicensed spectrum, it needs to obtain the channel usage right of the unlicensed spectrum, and follow the restrictions on the transmission power and bandwidth of the resource usage on the unlicensed spectrum Claim. It does not limit the radio technology, operating companies and service life, but it does not guarantee the quality of services on it. Operators can use the unlicensed frequency band resources to achieve the purpose of network capacity distribution, but they need to comply with the regulatory requirements for unlicensed frequency band resources in different regions and different spectrums. These requirements are usually formulated to protect public systems such as radar, and to ensure that multiple systems do not cause harmful effects and coexist with each other as much as possible, including transmit power limits, out-of-band leakage indicators, indoor and outdoor use restrictions, and some regions There are some additional coexistence strategies. For example, each communication device may use a listen-before-talk (listen before talk, LBT) (or rather, detect before send) mechanism to compete for the use of resources in unlicensed frequency bands.

3. Listen to LBT first:

Generally, LBT is performed with a granularity of 20 MHz. Before a communication device sends a signal (for example, a data signal) on a certain channel (for example, referred to as a first channel), it can first detect whether the first channel is idle, for example, whether it is detected that a nearby communication device is occupying the first channel Sending a signal, this detection process may be called clear channel assessment (clear channel assessment, CCA) or channel access process. In the embodiment of the present application, there are at least two channel access processes, which are referred to as a first channel access process and a second channel access process. The first channel access process may be: based on energy detection of a fixed duration, for a certain bandwidth, such as 20 MHz, the signal energy received by the communication device (the communication device may be a terminal device or a network device) within a fixed duration is less than Or equal to the first preset threshold, the channel is considered to be idle, so that the communication device can use the idle channel to transmit data; otherwise, the channel is considered to be busy, so that the communication device does not use the busy channel to transmit data. The second channel access process may be: energy detection based on the back-off mechanism. For a certain bandwidth, the communication device randomly selects a value A from a window (or range of values), and the communication device detects at least A idle energy After the detected time slot, the channel is considered to be idle, so that the communication device can use the idle channel to transmit data; otherwise, the channel is considered to be busy, so that the communication device does not use the busy channel to transmit data. Wherein, idle energy detection means that the energy of the received signal within a fixed duration is less than or equal to the second preset threshold. Wherein, the first preset threshold and the second preset threshold may be predefined, for example, predefined by the protocol, which is not limited.

Two results can be obtained when performing the channel access process: the channel access process is completed and the channel access process is not completed. Among them, the channel access process is completed, which means that the channel is determined to be idle before the time domain start position of the time-frequency resource used for data transmission; the channel access process is not completed, which means that the channel is started from the time domain of the time-frequency resource used for data transmission The channel is determined to be busy before the start position.

4. Bandwidth (BWP or BP):

Since the transmission or reception capabilities of different terminal devices in the same cell in NR may be different, the system can configure the corresponding bandwidth for each terminal device. This part of the bandwidth allocated to the terminal device is called BWP, and the terminal device is on its own BWP transmission. Generally, each serving cell activates one BWP, and the terminal device transmits and receives data on the activated BWP, or multiple BWPs can also be activated, which is not limited herein. FIG. 4 shows a schematic diagram of BWP. The size of the BWP is less than or equal to the bandwidth capability of the terminal, that is, the maximum bandwidth supported by the terminal. BWP may be a continuous set of frequency domain resources on the carrier. Continuous frequency domain resources are beneficial to reduce the complexity of resource allocation. For example, BWP may include multiple consecutive subcarriers; for another example, BWP may include multiple consecutive physical resource blocks (PRB); for another example, BWP A plurality of subbands may be included, and each subband corresponds to a certain frequency domain bandwidth, for example, 20 MHz. BWP can also be a discontinuous frequency domain resource, which is conducive to the use of discrete resources. The terminal device can support multiple BWPs, that is, the network device can configure multiple BWPs for the terminal device. When multiple BWPs are configured, the frequency domain resources that can be occupied by different BWPs may partially overlap or may not overlap each other. The bandwidth of frequency domain resources occupied by different BWPs may be the same or different.

For different terminal devices, the system can be configured with different BWP. In order to support different services, different BWP may support different configuration parameters (numerology). Different BWP may be configured with different transmission bandwidth (for example, BWP contains different number of resource blocks (RB)), different subcarrier intervals, or different cyclic prefix (CP), etc., here or For non-exclusive meaning, that is, the bandwidth of the BPW, the subcarrier interval and the CP may be partially different, or they may all be different. It should be understood that the specific content contained in the numerology listed here is only an exemplary description, and should not constitute any limitation to this application. For example, numerology may also include other granularity parameters that can be supported in NR.

Introducing wideband operation in NR, one wideband supports multiple BWP or subbands. Generally, LBT is performed at a granularity of 20MHz. If the NR-U carrier is greater than 20MHz, then a parallel multiple sub-band channel access process (or LBT) is required. If the channel access process of the band is not completed (or LBT succeeds or fails), the 20MHz subband cannot be used to send data.

LAA-LTE does not support wideband operation. When wideband operation is introduced in NR, how to support two-level scheduling of wideband operation in NR-U is the main concern of this application.

5. Two-level scheduling:

For the LAA system, 3GPP introduced a two-level scheduling mode that can support scheduling across transmission opportunities. FIG. 5 shows a schematic diagram of the subframe structure of the two-level scheduling mode in the LAA system. Although FIG. 5 takes the TDD frame structure as an example for description, it is only used as an example and does not limit the use of the two-level scheduling mode, and it can also be used for the FDD frame structure.

As shown in FIG. 5, when a terminal device (such as the terminal device 130 in the wireless communication system 100 shown in FIG. 1) performs uplink transmission, it obtains a two-level uplink grant (UL grant), that is, the first grant in FIG. 5 (for example, The first triggered uplink authorization (triggered UL) may also be called trigger A) and the second authorization (for example, the second triggered uplink authorization may also be called trigger B). The terminal device performs data transmission after receiving the two-level scheduling uplink authorization. The subframe in the dotted frame represents the effective subframe area of the first authorization indication.

The first authorization is mainly used to indicate the frequency domain resources and relative time of the terminal device during uplink transmission. The first authorization may be that the network device notifies the terminal device through a physical downlink control channel (PDCCH), for example, through downlink control Send information (downlink control information, DCI). The DCI may be a dedicated DCI, which may be scrambled using a cell radio network temporary identifier (C-RNTI). The terminal device may perform the grouping process according to the first authorization, and deliver the grouped data packet to the physical layer.

The second authorization is mainly used to indicate the absolute time. The terminal device may determine the time domain position of the uplink transmission according to the relative time indicated in the first authorization and the absolute time indicated in the second authorization, and then perform the uplink transmission. The second authorization may be notified by the network device to the terminal device through DCI, and the DCI is, for example, a common DCI. The dedicated DCI refers to the DCI of a specific terminal device. For example, the DCI can be scrambled by the C-RNTI of the terminal device, and the terminal device that can descramble the DCI can correctly receive the DCI. The public DCI is a plurality of terminals DCI shared by devices, for example, terminal devices in the same cell share the DCI.

In the embodiments of the present application, in consideration of the introduction of wideband operation in NR, a method is provided to enable two-level scheduling that supports wideband operation in NR-U.

6. Time-frequency resources:

In the embodiment of the present application, data or information may be carried by time-frequency resources, where the time-frequency resources may include resources in the time domain and resources in the frequency domain. In the time domain, the time-frequency resource may include one or more time-domain units (or, may also be referred to as time units), and in the frequency domain, the time-frequency resource may include one or more frequency-domain units.

Among them, a time domain unit (also called time unit) can be a symbol, or a mini-slot, or a slot, or a subframe (subframe), where a sub The duration of a frame in the time domain may be 1 millisecond (ms), one slot consists of 7 or 14 symbols, and one mini slot may include at least one symbol (for example, 2 symbols or 7 symbols or 14 symbols) Symbols, or any number of symbols less than or equal to 14 symbols). The above-mentioned time-domain unit sizes are just for the convenience of understanding the scheme of the present application, and should not be understood as limiting the application. It is understandable that the above-mentioned time-domain unit sizes may be other values, which are not limited in this application.

A frequency domain unit may be a PRB, an RB, or a resource block group (RBG), or a predefined subband.

The embodiments of the present application will be described in detail below with reference to the drawings.

In order to facilitate understanding of the embodiments of the present application, before introducing the embodiments of the present application, the following points will be made.

In the embodiments of the present application, the first, second, third, fourth, and various numerical numbers are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application. For example, differentiating different indication information, different BWP, different subbands, etc.

In the embodiments of the present application, "LBT on a subband", "Channel detection on a subband", and "Channel access process on a subband" are often used interchangeably, but those skilled in the art can understand this meaning. For the terminal device, LBT on the subband, channel detection on the subband, and channel access process on the subband are all used to indicate that channel monitoring is performed on the subband to detect whether the subband is idle . Therefore, in the embodiments of the present application, when the difference is not emphasized, the meaning to be expressed is the same.

In the embodiments of the present application, subbands and PRBs are used as an example of frequency domain units to describe the specific method of uplink transmission in detail, but this should not constitute any limitation to the present application. It should be understood that the subband and the PRB are only two possible forms of the frequency domain unit, and the frequency domain unit may also be a subcarrier, RB, etc., which is not limited in this application.

In the embodiment of the present application, "pre-acquisition" may include signaling indication or pre-defined by the network device, for example, protocol definition. Among them, "pre-defined" can be achieved by pre-storing corresponding codes, tables or other methods that can be used to indicate relevant information in the device (for example, including terminal devices and network devices), and this application does not do for its specific implementation limited.

The "save" involved in the embodiments of the present application may refer to being saved in one or more memories. The one or more memories may be set separately, or may be integrated in an encoder or decoder, a processor, or a communication device. The one or more memories may also be partly set separately and partly integrated in a decoder, processor, or communication device. The type of memory may be any form of storage medium, which is not limited in this application.

The "protocol" in the embodiments of the present application may refer to a standard protocol in the communication field, and may include, for example, the NR protocol and related protocols applied in a future communication system, which is not limited in this application.

In the embodiments of the present application, the "instruction" may include a display instruction (or called direct instruction) and a hidden instruction (or called indirect instruction). The information indicated by certain information (the second instruction information as described below) is called information to be indicated. In the specific implementation process, there are many ways to indicate the indication information, such as but not limited to, you can directly indicate Information to be indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance.

In the embodiment of the present application, "and/or" describes the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate: A exists alone, A and B exist simultaneously, and exist alone B these three cases. The character "/" generally indicates that the related object is a "or" relationship. "At least one" means one or more than one; "At least one of A and B", similar to "A and/or B", describes the relationship of related objects, indicating that there can be three relationships, for example, A and B At least one of them can indicate that there are three situations: A exists alone, A and B exist simultaneously, and B exists alone.

In the embodiments of the present application, "plurality" refers to two or more, and other quantifiers are similar.

It should be understood that the communication method provided by the present application may be applicable to a wireless communication system, for example, the wireless communication system 100 shown in FIG. 1. The terminal device in the embodiment of the present application can communicate with one or more network devices at the same time. For example, the network device in the embodiment of the present application can correspond to the network device 110 in FIG. 1, and the terminal device in the embodiment of the present application can correspond to于terminal device 130.

In the following, without loss of generality, the interaction process between a terminal device and a network device is taken as an example to describe in detail the embodiments of the present application. The terminal device may be any terminal device that has a wireless connection relationship with one or more network devices in a wireless communication system. It can be understood that any terminal device in the wireless communication system can implement wireless communication based on the same technical solution. This application does not limit this.

FIG. 6 is a schematic flowchart of an uplink transmission method 200 according to an embodiment of the present application shown from the perspective of device interaction. As shown in FIG. 6, the method 200 shown in FIG. 6 may include steps 210 to 240, and each step is described in detail below.

In step 210, the network device sends first indication information to the terminal device, and accordingly, the terminal device receives the first indication information sent by the network device.

The first indication information may also be called first trigger information or trigger A or first authorization. And the first indication information includes resource information.

In the embodiment of the present application, in a two-level scheduling within a BWP, a BWP may include at least two subbands, each subband (subband) corresponds to a certain frequency domain bandwidth, for example, it may be 20 MHz, and the subbands may be continuous The spectrum resource may also be non-contiguous spectrum resource. The resource information in the first indication information may include, for example, frequency domain resource information, and the frequency domain resource information may include at least one of the following: BWP information, subband information, and PRB information. For example, the frequency domain resource information may include BWP information, subband information, or PRB information, and the corresponding BWP, subband or PRB may be determined correspondingly as the resource indicated by the first indication information. For another example, the frequency domain resource information may include BWP information and subband information, and then it may be determined that the BWP subband is the resource indicated by the first indication information. For another example, the frequency domain resource information may include BWP information and PRB information, and then it may be determined that the PRB of the BWP is the resource indicated by the first indication information. For another example, the frequency domain resource information may include subband information and PRB information, and then the PRB of the subband may be determined to be the resource indicated by the first indication information. For another example, the frequency domain resource information may include BWP information, subband information, and PRB information, and then it may be determined that the PRB of the BWP subband is the resource indicated by the first indication information. The cell corresponding to the resource indicated by the resource information in the first indication information and the cell sending the first indication information may be the same cell or different cells, which is not limited in this embodiment of the present application.

In step 220, the network device sends second indication information to the terminal device, and accordingly, the terminal device receives the second indication information sent by the network device.

The second indication information may also be referred to as second trigger information or trigger B or second authorization. As described above, the terminal device acquires the first indication information and the second indication information when performing two-level scheduled uplink transmission, and the terminal device transmits data after receiving the first indication information and the second indication information. In the embodiment of the present application, the first indication information may be used for the first authorization, and the second indication information may be used for the second authorization.

The first indication information may be sent through the PDCCH, that is, the network device notifies the terminal device of the first indication information through the PDCCH. The first indication information may be identified by a terminal device, such as a cell radio network temporary identifier (cell radio network temporary identifier, C-RNTI) or a modulation and coding scheme radio network temporary identifier (modulation coding, scheme radio scheme network temporary identifier, mcs-RNTI) To scramble. The second indication information may be sent through the PDCCH. The second indication information may be scrambled using a public radio network temporary identifier (RNTI) or a group RNTI. At least one terminal device in the cell may be informed of the second indication information.

In step 230, the terminal device determines the first frequency domain interval according to the second indication information, and performs the first channel access process on the first frequency domain interval.

The determined first frequency domain interval includes the resource indicated by the resource information. In other words, the terminal device determines the first frequency domain interval including the resource indicated by the resource information in the frequency domain interval indicated by the second indication information according to the second indication information.

The first frequency domain interval may include at least one subband and/or at least one BWP. The first channel access process is performed at the granularity of the subband. When the first frequency domain interval includes one subband, the terminal device may perform the first channel access process on the subband. When the first frequency domain interval includes multiple subbands, the terminal device may perform multiple first channel access processes on the multiple subbands. The specific subband on which the first channel access process is performed may be determined according to the resource information, for example The first channel access process is performed on the subband with the resource indicated by the resource information. In this regard, the embodiments of the present application are not limited. When the first frequency domain interval includes a BWP, the terminal device may perform the first channel access process on the subband corresponding to the BWP, where the subband corresponding to the BWP may include one or more. The one or more subbands may be determined according to the resource information. For example, when the BWP includes a subband with the resource indicated by the resource information, the terminal device may perform the first channel access process on the one subband; when the BWP includes multiple When there are subbands of the resource indicated by the resource information, the terminal device may perform multiple first channel access procedures on the multiple subbands. When the first frequency domain interval includes multiple BWPs, the method for determining the subband on which the first channel access process can be performed on each BWP is the same as described above, that is, it can be determined according to the resource information. The above methods can also be combined, that is, the first frequency domain interval can include both BWP and subbands, for example, subband 1 including BWP1 and BWP2, then the first subband with the resource indicated by the resource information in BWP1 can be used. One channel access process, and when subband 1 of BWP2 has the resource indicated by the resource information, the first channel access process may be performed on subband 1 of BWP2.

The method for the terminal device to determine the first frequency domain interval according to the second indication information includes any one of the following.

Method A: display instructions (or direct instructions)

The second indication information carries identification information of the first frequency domain interval.

Optionally, the second indication information carries identification information of at least one subband and/or at least one BWP, so that the terminal device determines the first frequency domain interval.

For example, when the first frequency domain interval includes a subband, the second indication information may carry the identifier of the subband, and the number of subbands may be one or more. When the first frequency domain interval includes BWP, the second indication information may carry the BWP identifier, and the number of BWPs may be one or more, and the BWP may include one or more subbands. When the first frequency domain interval includes the BWP and the subband, the second indication information may carry the identifier of the BWP and the identifier of the subband. The BWP indicated by the BWP identification may include the subband indicated by the subband identification, or may not include the subband indicated by the subband identification.

For a possible implementation manner of the indication of the subband identification, the information of the first frequency domain interval of the terminal device is indicated by an X-bit bitmap (bitmap), where X is an integer greater than 1 or equal to 1. For example, as shown in FIG. 7, it is assumed that the terminal device subband information is notified through a 6-bit bitmap. Each bit represents a subband. A value of 1 indicates that the corresponding subband can perform the first channel access process, which is 0. It indicates that the first channel access process or the second channel access process is not performed (described below), and the shaded part in FIG. 7 is 1. Suppose there are subband 1, subband 2, subband 3, subband 4, subband 5, and subband 6. It can be seen from FIG. 7 that the subband 3 and the subband 6 corresponding to the shadow can perform the first channel access process, then the subband 3 and the subband 6 belong to the first frequency domain interval.

Method B: Implicit instructions (or indirect instructions)

The terminal device determines the first frequency domain interval according to the frequency domain interval where the resource carried by the second indication information is located.

The terminal device determines the first frequency domain interval according to the subband or BWP corresponding to the second indication information. For example, assuming that the terminal device receives the second indication information through the resources of subband 3, it may determine that the first frequency domain interval is subband 3, and the terminal device may perform the first channel access process on subband 3. For example, assuming that the terminal device receives the second indication information through the resources of BWP1, it may determine that the first frequency domain interval is BWP1, and the terminal device may perform the first channel access process on BWP1.

It should be noted that the two methods for determining the first frequency domain interval are introduced through the methods A and B above. The embodiments of the present application are not limited thereto, and any method that can determine the first frequency domain interval belongs to this Apply for the protection scope of the embodiments.

In step 240, the terminal device transmits data on the first resource in the first frequency domain interval according to the result of the first channel access process.

If the terminal device determines that the first frequency domain interval includes N subbands or M BWPs, the terminal device performs the first channel access process on each subband or BWP, and the first channel access process for any subband or BWP It includes two results: the channel access process is completed (that is, LBT succeeds) and the channel access process is not completed (that is, LBT fails), where N and M are integers greater than 1 or equal to 1, and N and M can be equal, and It may not be equal. N subbands may belong to one BWP or multiple BWP. When the terminal device determines that the channel access process of a subband or BWP is completed, the terminal device may use the resources belonging to the subband or BWP in the first resource to transmit data; when the terminal device determines that the channel access process is not completed, the terminal device determines Data in the first resource belonging to the subband or BWP cannot be used to transmit data.

The first resource is a resource in the first frequency domain interval, and the first resource is determined according to the resource information. The first resource may be an uplink time-frequency resource (or referred to as an uplink transmission resource), which indicates that the terminal device may use the uplink time-frequency resource to send uplink data to the network device, that is, send uplink data to the network device on the first resource.

It should be understood that the upstream time-frequency resources in this application are used as an example for illustrative description, and this application is not limited thereto. For example, in the embodiment of the present application, the first indication information also allocates the first resource and the downlink time-frequency resource. (Or called downlink transmission resource), if it is the first resource and the downlink time-frequency resource, it means that the terminal device receives the downlink data on the downlink time-frequency resource and decodes the downlink data to obtain the decoding result. The first resource sends a hybrid automatic repeat request (HARQ) feedback to the network device, that is, after the channel access process is completed, an acknowledgment (ACK) or non-acknowledgement (NACK) is sent to the network device.

Among them, HARQ is a technology that combines forward error correction (FEC) and automatic repeat request (ARQ) methods. FEC adds redundant information so that the receiving end (such as terminal equipment) can correct some errors, thereby reducing the number of retransmissions. FEC is commonly referred to as redundant channel coding. For errors that cannot be corrected by FEC, the receiving end requests the sending end to retransmit data through the ARQ mechanism. The receiving end uses an error detection code, such as cyclic redundancy check (CRC), to detect whether the received data packet is in error. If there is no error, a positive ACK is sent. If there is an error, the receiving end will discard the data packet or save the data packet and wait for the data to be retransmitted, which can be combined and used, and send a NACK to the sending end. After receiving the NACK, the sending end (such as a network device) usually retransmits the same data. Among them, the terminal device may also be used as the sending end, and the network device or the terminal device as the receiving end.

The following describes three embodiments applicable to the present application in combination with three scenarios.

scene 1

The resource information includes information of the frequency domain resource that activates BWP.

The frequency domain resource may be a PRB, and the number of the PRB is numbered according to the PRB in the entire BWP. FIG. 8 shows a specific example, which will be exemplarily described below in conjunction with FIG. 8. As shown in FIG. 8, suppose a BWP includes 6 PRBs, and the frequency domain resource numbers are from PRB1 to PRB6, and the BWP is denoted as BWP1. Assume that PRB1 and PRB2 are located in subband 1, PRB3 and PRB4 are located in subband 2, and PRB5 and PRB6 are located in subband 3. It is assumed that the network device allocates frequency domain resources PRB1 and PRB4 for the terminal device to transmit data. The network device sends first indication information to the terminal device. The resource information in the first indication information includes PRB1 and PRB4, that is, the first indication information indicates that PRB1 and PRB4 can be used for the terminal device to transmit data. After receiving the first indication information, the terminal device may determine that the frequency domain resources allocated by the network device for the terminal device to transmit data are PRB1 and PRB4.

It should be noted that FIG. 8 is only an exemplary description for ease of understanding. The number of subbands in the BWP and the number of PRBs in each subband are arbitrary, which is not limited in the embodiment of the present application.

After receiving the second indication information sent by the network device, the terminal device determines the first frequency domain interval, and performs the first channel access process on the first frequency domain interval. The method for the terminal device to determine the first frequency domain interval has been described above, for example, any one of the methods A and B listed above, which is concise here and will not be repeated here.

In a possible implementation manner, the terminal device performs the first channel access process on the first frequency domain interval.

Taking FIG. 8 as an example, after receiving the first indication information, the terminal device learns that the frequency domain resources allocated by the network device to the terminal device include PRB1 and PRB4 according to the resource information in the first indication information. It is assumed that the second indication information indicates that BWP is BWP1. For example, after receiving the second indication information, the terminal device determines, through the above method A or method B, that the first frequency domain interval indicated in the second indication information is subband 1 or subband 2, Then, the terminal device may perform the first channel access process on subband 1 or subband 2.

For example, the terminal device performs the first channel access process on subband 1. If the terminal device determines that the channel access process is completed, the terminal device may use part or all of the frequency domain resources of PRB1 to transmit data; if the terminal device determines channel access If the process is not completed, the terminal device does not use PRB1 to transmit data. For another example, the terminal device performs the first channel access process on the subband 2. If the terminal device determines that the channel access process is completed, the terminal device may use part or all of the frequency domain resources of PRB4 to transmit data; if the terminal device determines the channel access If the entry process is not completed, the terminal device does not use PRB4 to transmit data.

In another possible implementation manner, the terminal device performs the first channel access process on the first frequency domain interval, and performs the second channel access process on the remaining frequency domain interval. The resource information corresponds to resources located on multiple frequency domain intervals, and the remaining frequency domain intervals are frequency domain intervals other than the first frequency domain interval among the multiple frequency domain intervals. It should be noted that, if the remaining interval includes multiple frequency domain intervals, each frequency domain interval in the multiple frequency domain intervals may perform the second channel access process.

For example, suppose there are 3 subbands, which are respectively denoted as subband 1, subband 2, and subband 3. The frequency domain resources allocated by the network device are located in subband 1 and subband 2, and the terminal device determines the first frequency according to the second indication information. If the domain interval is subband 2, then the terminal device performs the first channel access process in subband 2 and the second channel access process in subband 1. The terminal device uses the first channel access process to share the transmission opportunities of the network device, so that the channel is more easily obtained, and the delay of data transmission is reduced.

The following will still use FIG. 8 as an example to illustrate the above process. After receiving the first indication information, the terminal device learns that the frequency domain resources allocated by the network device to the terminal device include PRB1 and PRB4 according to the resource information in the first indication information. Assuming that the second indication information indicates that BWP is BWP1, if the terminal device receives the second indication information, and determines that the first frequency domain interval is subband 1 through the above method A or method B, then the terminal device may perform subband 1 on subband 1. One-channel access process.

The terminal device performs the first channel access process on subband 1. If the terminal device determines that the channel access process is completed, the terminal device may use part or all of the frequency domain resources of PRB1 of the subband 1 to transmit data; if the terminal device determines that the channel access process is not completed, the terminal device does not use the subband 1 PRB1 transmits data.

The terminal device may also perform the second channel access process on the subband 2. If the terminal device determines that the channel access process is completed, the terminal device may use part or all of the frequency domain resources of PRB 4 of the subband 2 to transmit data; if the terminal device determines that the channel access process is not completed, the terminal device does not use the subband 2 PRB4 transmits data.

It should be understood that when the terminal device performs the first channel access process on subband 1 and the second channel access process on subband 2, and the terminal device determines that the channel access process is completed, the terminal device may use the subchannel Part or all of the frequency domain resources of PRB1 in band 1 transmit data, and/or the terminal device may use part or all of the frequency domain resources of PRB4 in subband 2 to transmit data. When the terminal device uses the frequency domain resource of PRB1 of subband 1 and the frequency domain resource of PRB4 of subband 2, the transmitted data may be the same or different, which is not limited in this embodiment of the present application.

Scene 2

The resource information includes information of frequency domain resources of the subband that activates the BWP and identification information of the subband.

The frequency domain resource may be a PRB, and the number of the PRB is numbered according to the PRB in the subband. FIG. 9 shows a specific example, which will be exemplarily described below in conjunction with FIG. 9. As shown in FIG. 9, assume that a BWP includes 3 subbands, denoted as subband 1, subband 2, and subband 3. The BWP is denoted as BWP1, and each subband includes 2 PRBs, numbered from PRB1 to PRB2. It is assumed that the network device allocates PRB2 of frequency domain resource subband 1 and PRB1 of subband 3 for the terminal device to transmit data. The network device sends first indication information to the terminal device, the resource information in the first indication information includes PRB2 of subband 1 and PRB1 of subband 3, that is, the first indication information indicates that PRB2 of subband 1 and PRB1 of subband 3 can Used for data transmission by terminal equipment. After receiving the first indication information, the terminal device may determine that the frequency domain resources allocated by the network device for the terminal device to transmit data include PRB2 of subband 1 and PRB1 of subband 3.

It should be noted that FIG. 9 is only an exemplary description for ease of understanding. The number of subbands in the BWP and the number of PRBs in each subband are arbitrary, which is not limited in the embodiments of the present application.

After receiving the second indication information sent by the network device, the terminal device determines the first frequency domain interval, and performs the first channel access process on the first frequency domain interval. The first frequency domain interval is a subset of the subbands indicated by the identifier of the subband in the resource information. The method for the terminal device to determine the first frequency domain interval has been described above, for example, any one of the methods A and B listed above, which is concise here and will not be repeated here.

In a possible implementation manner, the terminal device performs the first channel access process on the first frequency domain interval.

Taking FIG. 9 as an example, after receiving the first indication information, the terminal device learns that the frequency domain resource allocated by the network device to the terminal device includes PRB2 of subband 1 and PRB1 of subband 3. If the first frequency domain interval indicated by the second indication information is subband 1, for example, after receiving the second indication information, the terminal device determines the first frequency domain indicated in the second indication information by using method A or method B as listed above If the interval is subband 1, the terminal device may perform the first channel access process on subband 1. Or, if the first frequency domain interval indicated by the second indication information is subband 3, for example, after receiving the second indication information, the terminal device determines the first indicated in the second indication information by method A or method B as listed above If the frequency domain interval is subband 3, the terminal device may perform the first channel access process on subband 3.

If the first frequency domain interval indicated in the second indication information is subband 1, the terminal device performs the first channel access process on subband 1. If the terminal device determines that the channel access process is completed, the terminal device may use part or all of the frequency domain resources of PRB2 of the subband 1 to transmit data; if the terminal device determines that the channel access process is not completed, the terminal device does not use the subband 1 PRB2 transmits data.

If the first frequency domain interval indicated in the second indication information is subband 3, the terminal device performs the first channel access process on subband 3. If the terminal device determines that the channel access process is completed, the terminal device may use part or all of the frequency domain resources of PRB1 of the subband 3 to transmit data; if the terminal device determines that the channel access process is not completed, the terminal device does not use the subband 3 PRB1 transmits data.

In another possible implementation manner, the terminal device performs the first channel access process on the first frequency domain interval, and performs the second channel access process on the remaining frequency domain interval. The resource information corresponds to resources located on multiple frequency domain intervals, and the remaining frequency domain intervals are frequency domain intervals other than the first frequency domain interval among the multiple frequency domain intervals. It should be noted that, if the remaining interval includes multiple frequency domain intervals, each frequency domain interval in the multiple frequency domain intervals may perform the second channel access process.

Taking FIG. 9 as an example, the above process will be described below. After receiving the first indication information, the terminal device learns that the frequency domain resource allocated by the network device to the terminal device includes PRB2 of subband 1 and PRB1 of subband 3. Assuming that the second indication information indicates that the first frequency domain interval is subband 1, for example, after receiving the second indication information, the terminal device determines the first frequency domain interval indicated in the second indication information by using method A or method B as listed above If it is subband 1, the terminal device may perform the first channel access process on subband 1.

The terminal device performs the first channel access process on subband 1. If the terminal device determines that the channel access process is completed, the terminal device may use part or all of the frequency domain resources of PRB2 of the subband 1 to transmit data; if the terminal device determines that the channel access process is not completed, the terminal device does not use the subband 1 PRB2 transmits data.

The terminal device may also perform the second channel access process on the subband 3. If the terminal device determines that the channel access process is completed, the terminal device may use part or all of the frequency domain resources of PRB1 of the subband 3 to transmit data; if the terminal device determines that the channel access process is not completed, the terminal device does not use the subband 3 PRB1 transmits data.

It should be understood that when the terminal device performs the first channel access process on subband 1 and the second channel access process on subband 3, and the terminal device determines that the channel access process is completed, the terminal device may use the sub Part or all of the frequency domain resources of PRB2 in band 1 transmit data, and/or, the terminal device may use part or all of the frequency domain resources of PRB1 in subband 3 to transmit data. When the terminal device uses the frequency domain resource of PRB2 of subband 1 and the frequency domain resource of PRB1 of subband 3 to transmit data, the transmitted data may be the same or different, which is not limited in this embodiment of the present application.

Scene 3

The resource information includes information of frequency domain resources of the sub-band that activates BWP.

The frequency domain resource may be a PRB, and the number of the PRB is numbered according to the PRB in the subband. FIG. 10 shows a specific example, which will be exemplarily described below in conjunction with FIG. 10. As shown in FIG. 10, suppose a BWP includes 3 subbands, denoted as subband 1, subband 2, and subband 3. The BWP is denoted as BWP1, and each subband includes 2 PRBs, numbered from PRB1 to PRB2. It is assumed that the network device indicates the information of the number of subbands and the PRB number information inside the subband when allocating the frequency domain resources. Assume that the network device allocates two subbands of PRB1 for the terminal device to transmit data. The network device sends first indication information to the terminal device. The resource information in the first indication information includes PRB1 of the two subbands, that is, the first indication information indicates that PRB1 of the two subbands can be used for the terminal device to transmit data. After receiving the first indication information, the terminal device may determine that the frequency domain resource allocated by the network device for data transmission by the terminal device is located in PRB1 of the two subbands, but the terminal device does not know which of the two subbands is PRB1.

It should be noted that FIG. 10 is only an exemplary description for ease of understanding. The number of subbands in the BWP and the number of PRBs in each subband are arbitrary, which is not limited in the embodiments of the present application.

After receiving the second indication information sent by the network device, the terminal device determines the first frequency domain interval, and performs the first channel access process on the first frequency domain interval. The method for the terminal device to determine the first frequency domain interval has been described above, for example, any one of the methods A and B listed above, which is concise here and will not be repeated here.

Taking FIG. 10 as an example, after receiving the first indication information, the terminal device learns that the frequency domain resource allocated by the network device to the terminal device is located in PRB1 in two subbands. It is assumed that the second indication information indicates that the first frequency domain interval is subband 1, for example, after receiving the second indication information, the terminal device determines the first frequency domain interval indicated in the second indication information by using method A or method B as listed above If it is subband 1, the terminal device may perform the first channel access process on subband 1.

For example, the terminal device performs the first channel access process on subband 1, if the terminal device determines that the channel access process is completed, the terminal device may use part or all of the frequency domain resources of PRB1 of the subband 1 to transmit data; if the terminal The device determines that the channel access process is not completed, and the terminal device does not use the PRB1 of the subband 1 to transmit data.

In addition, the terminal device may perform the second channel access process on the subband without indication, for example, perform the second channel access process on the subband 2 and subband 3, and if the terminal device determines that the channel access process is completed, the terminal The device may use part or all of the frequency domain resources of the PRB1 of the subband 2 or 3 to transmit data; if the terminal device determines that the channel access process is not completed, the terminal device does not use the PRB1 of the subband 2 or 3 to transmit data.

It should be understood that when the terminal device performs the first channel access process on subband 1 and the second channel access process on subband 2 or 3, and the terminal devices all determine that the channel access process is completed, the terminal device may Part or all of the frequency domain resources of PRB2 of subband 1 are used to transmit data, and/or, the terminal device may use part or all of the frequency domain resources of PRB1 of subband 2 or 3 to transmit data. When the terminal device uses the frequency domain resource of PRB2 in subband 1 and the frequency domain resource of PRB1 using subband 2 or 3, the transmitted data may be the same or different, which is not limited in this embodiment of the present application.

The foregoing uses FIG. 8 to FIG. 10 to introduce three scenarios applicable to the embodiments of the present application. Based on any of the solutions shown in FIG. 8 to FIG. 10 above, the terminal device can determine the frequency domain interval for the channel access process according to the second indication information, so that it can share transmission opportunities of the network device and obtain the channel more easily. In addition, the terminal device determines the resource for transmitting data according to the result of the channel access process and the resource information in the first indication information, so that it can communicate with the network device.

In this application, the terminal device may also determine the time domain resource used for data transmission according to the second indication information, or the first indication information and the second indication information. The following is a detailed description.

Optionally, the first indication information further includes indication information of a first relative time (ie, an example of relative time domain position), which is used for multiplexing multiple terminal devices in the time domain. As shown in FIG. 11, the first indication information may indicate the relative time-domain positions of terminal device A, terminal device B, and terminal device C. The time-domain resources of different terminal devices are located at different positions, for example, at different time slots. , Even in the same frequency domain resources, the terminal devices will not interfere with each other. Among them, the first relative time may also be referred to as an offset (offset), which is recorded as the first type of offset for distinction. The first type of offset may correspond to at least one of the following: transmission parameters, subbands, BWP. Taking the first type of offset corresponding to the subband as an example, the first type of offset corresponding to the subband means that independent offsets can be configured for different subbands, such as subband 1, subband 2, subband Belt 3 can be configured with the first type of offsets: offset 1, offset 2, offset 3, respectively. Transmission parameters include but are not limited to at least one of the following: physical uplink shared channel (PUSCH) duration (duration), subcarrier spacing (subcarrier spacing (SCS)), modulation coding scheme (modulation coding scheme (MCS) table ( table).

Optionally, the second indication information includes information related to the location of the time-domain resource used to transmit data. The terminal device determines the time domain resource for transmitting data according to the second indication information, or according to the second indication information and the first indication information.

In a possible implementation manner, the terminal device determines the time domain resource for transmitting data according to the second indication information.

For example, the second indication information includes information about the absolute time domain position for transmitting data, and the terminal device determines the time domain resource for transmitting data according to the information about the absolute time domain position.

For another example, the second indication information includes offset information. For distinction, the second type of offset is recorded. The time domain resource for transmitting data is determined according to the offset information and the time when the second indication information is received. . The second type of offset represents the offset between the absolute time domain position used by the terminal device to transmit data and the time when the second indication information is received. Taking the time domain unit as a time slot as an example, if the offset is 3 and the time slot at which the terminal device currently receives the second indication information is time slot 0, then for the terminal device, the data transmission is in time slot 3 .

In another possible implementation manner, the terminal device determines the time domain resource for transmitting data according to the second indication information and the first indication information.

The terminal device can at least determine the time domain resource for transmitting data in any of the following ways.

Way 1

The second indication information includes information about the second relative time (that is, an example of the offset), and the terminal device determines the time domain resource for transmitting data according to the first relative time and the second relative time.

The second relative time may also be referred to as an offset. For distinction, it is recorded as a third type of offset. The third type of offset may correspond to at least one of the following: transmission parameters, subbands, and BWP. Taking the third type of offset corresponding to the subband as an example, the third type of offset corresponding to the subband means that independent offsets can be configured for different subbands, such as subband 1, subband 2, subband Band 3 can be configured with a third type of offset: offset A, offset B, and offset C, respectively.

The second indication information further includes indication information of the second relative time, for example, for the scenario 3 (as shown in FIG. 10) described above, the indication information of the second relative time is used to indicate the first An offset between indication information (ie, an example of the third type of offset), and the second indication information carries identification information of at least one subband and corresponding offset information. By carrying the identification information of the sub-band, different terminal devices are time-division multiplexed in the time domain, thereby solving the interference problem. If the first indication information includes a first relative time and the second indication information includes a second relative time, the terminal device may determine the time domain for transmitting data according to the first relative time of the first indication information and the second relative time of the second indication information Resources.

For example, taking the time domain unit as a time slot as an example, suppose the frequency domain position of terminal device A to transmit data is subband 1, and the frequency domain position of terminal device B to transmit data is subband 2, if the offset of subband 1 is 0, the offset of subband 2 is 4, and the current time slot receiving the second indication information is time slot 0, then the data transmission for the first indication information associated with subband 1 is from time slot 0 to time slot 3, and then determine the specific time slot for the terminal device A to transmit data according to the first relative time indication of the first indication information. Similarly, the data transmission for the first indication information corresponding to subband 2 is in time slot 4 and after, and then the specific time slot for data transmission by terminal device B is determined according to the first relative time indication of the first indication information. The offset can be defined in advance, for example, a protocol definition or a network device pre-configuration.

Way 2

The second indication information includes information about the third relative time (ie, another example of the offset), and the terminal device determines the time domain resource for transmitting data according to the first relative time and the third relative time.

The second indication information also includes third relative time indication information, which is used to indicate the offset between the first indication information corresponding to different transmission parameters (that is, another example of the third type of offset), and the second indication information carries Identification information of at least one transmission parameter and corresponding offset information. By carrying identification information of transmission parameters, different terminal devices are time-division multiplexed in the time domain, thereby solving interference problems. If the first indication information includes a first relative time and the second indication information includes a third relative time, the terminal device may determine the time domain for transmitting data according to the first relative time of the first indication information and the third relative time of the second indication information Resources.

For example, taking the time domain unit as a time slot as an example, assume that the transmission parameter corresponding to the data transmitted by terminal device A is transmission parameter 1, and the transmission parameter corresponding to the data transmitted by terminal device B is transmission parameter 2. If the offset of transmission parameter 1 is 0, the offset of transmission parameter 2 is 4, and the time slot currently receiving the second indication information is time slot 0, then the data transmission for the first indication information associated with transmission parameter 1 is from time slot 0 to time slot 3, and then determine the specific time slot for the terminal device A to transmit data according to the first relative time indication of the first indication information. Similarly, the data transmission for the first indication information corresponding to the transmission parameter 2 is in time slot 4 and later, and then the specific time slot for the terminal device B to transmit data is determined according to the first relative time indication of the first indication information.

Way 3

The second indication information includes information about the first absolute time (that is, an example of the first absolute time domain position), and the terminal device determines the time domain resource for transmitting data according to the first relative time and the first absolute time.

For example, taking the time domain unit as a time slot as an example, if it is determined that the data transmission of the terminal device is between time slot 0 to time slot 3 according to the first absolute time in the second indication information, then according to the first indication information The first relative time indication determines the specific time slot.

The above exemplarily introduces that the terminal device may determine the time domain resource for transmitting data according to the second indication information, or according to the first indication information and the second indication information, which is not limited to this application.

For different terminal devices, or for different BWPs, or for different services, or for different logical channels, or for different transmission parameters, etc., the first indication information is independently allocated, and the second indication information is Publicly allocated. Taking different terminal devices as an example, where the first indication information is independently allocated may indicate that different terminal devices may receive respective first indication information, and the second indication information is publicly allocated indicating that the second indication information is different terminal devices Both can receive the second indication information. Then, how to use the second indication information can realize a suitable terminal device, or a suitable BWP, or a suitable service, or a suitable logical channel, or a suitable transmission parameter. Optionally, the second indication information carries a priority identifier.

If the first indication information indicates the uplink transmission resource, the terminal device receives the first indication information, for example, if it is a new transmission, then the grouping process can be formed to form a medium access control protocol data unit (medium access control protocol data) unit, MAC PDU), or multiple MAC PDUs, each subband resource corresponds to a MAC PDU, and each MAC PDU corresponds to a priority. If it is retransmission, the MAC packet will be taken from the buffer for transmission without packet processing. The terminal device determines the MAC PDU that can be sent according to the priority identifier in the second indication information.

The second indication information carries priority identification information, for example, the priority identification may include the identification of the terminal device, and then the first indication information notifying the terminal device is triggered (eg, the first authorization is triggered). For another example, the priority identifier may include a BWP identifier, and then notify the terminal device that the first indication information corresponding to at least one BWP is triggered. For another example, the priority identifier may include a service identifier, and then notify the terminal device that the first indication information corresponding to at least one service is triggered. For another example, the priority identifier may include a logical channel identifier, and then notify the terminal device that the first indication information corresponding to at least one logical channel is triggered. For another example, the priority identifier may include an identifier of the transmission parameter, and then notify the terminal device that the first indication information corresponding to at least one transmission parameter is triggered. The first indication information and the second indication information are paired. When the first indication information described above is triggered, it means that the terminal device can perform two-level scheduling uplink transmission according to the first indication information and the second indication information.

It should be understood that the above priority identifier may carry any one or more of the identifier of the terminal device, the BWP identifier, the service identifier, the logical channel identifier, the identifier of the transmission parameter, and so on. The following is a description of each of the five situations.

Case 1: Priority identification includes identification of transmission parameters.

Among them, the transmission parameters include but are not limited to at least one of the following: physical uplink shared channel (physical uplink shared channel, PUSCH) duration (duration), subcarrier spacing (subcarrier spacing (SCS), modulation coding scheme (modulation coding scheme (MCS) Table. The RNTI of the first indication information corresponding to different MCS tables is different.

Taking the MCS table as an example, the second indication information may carry the MCS table indication information. The MCS table indication information is information used to indicate the MCS table. The MCS table indication information may be the identifier of the MCS table (for example, the index of the MCS table). The MCS table contains at least one MCS index, and each MCS index corresponds to a set of parameters. For example, the set of parameters may include a modulation rule (modulation order) and a transport block size (TBS) index. Table 1 exemplarily shows an MCS table, each MCS index in Table 1 corresponds to a modulation rule and a TBS index, and a modulation rule and a TBS index correspond to a physical transmission rate, that is, each MCS index corresponds to a group The physical transmission rate under the parameter.

For the terminal device: the terminal device uses the modulation rule corresponding to the MCS index in the MCS table indicated by the MCS table indication information to modulate the uplink data and/or uplink control information, and/or the terminal device uses the MCS table indication information to indicate The TBS indicated by the TBS index corresponding to the MCS index in the MCS table determines the coding scheme of the uplink data and/or uplink control information.

Table 1

MCS index	Modulation rule	TBS index
0	2	0
1	2	1
2	2	2
3	2	3
4	2	4
5	2	5
6	2	6
7	2	7
8	2	8
9	2	9
10	4	9

11	4	10
12	4	11
13	4	12
14	4	13
15	4	14
16	4	15
17	6	15
18	6	16
19	6	17
20	6	18
twenty one	6	19
twenty two	6	20
twenty three	6	twenty one
twenty four	6	twenty two
25	6	twenty three
26	6	twenty four
27	6	25
28	6	26
29	2	*
30	4	*
31	6	*

For the network device: the network device uses the modulation rule corresponding to the MCS index in the MCS table indicated by the MCS table indication information to demodulate the upstream data and/or upstream control information, and/or the network device uses the MCS table indication information to indicate The TBS indicated by the TBS index corresponding to the MCS index in the MCS table determines the decoding scheme of the uplink data and/or uplink control information.

Case 2: The priority identification includes the identification of the terminal device.

Assume that terminal device A, terminal device B, and terminal device C receive the first indication information sent by the network device. After receiving the first indication information, terminal device A, terminal device B, and terminal device C respectively generate a MAC PDU, such as a data packet, which is recorded as MAC PDU A, MAC PDU B, MAC PDU C.

A possible implementation manner, if the second indication information carries the first indication information indicating that the terminal device A is triggered, the MAC PDU A corresponding to the terminal device A can be sent, so that the MAC PDU B corresponding to the terminal device B and the terminal The MAC corresponding to device C is not sent, that is, terminal device A determines that the channel access process is completed (for example, terminal device A performs the first channel access process and/or terminal device A performs the second channel access process), and sends the MAC PDUA. For another example, if the second indication information carries the first indication information indicating that terminal device B is triggered, then the MAC corresponding to terminal device B can be sent, so that the MAC corresponding to terminal device A and the MAC corresponding to terminal device C The PDU C is not sent, that is, the terminal device B determines that the channel access process is completed (for example, the terminal device B performs the first channel access process and/or the terminal device B performs the second channel access process), and sends the MAC PDU B. For another example, if the second indication information carries the first indication information indicating that terminal device C is triggered, then the MAC corresponding to terminal device C may be sent, so that the MAC corresponding to terminal device B and the MAC corresponding to terminal device A The PDU A is not sent, that is, the terminal device C determines that the channel access process is completed (for example, the terminal device C performs the first channel access process and/or the terminal device C performs the second channel access process), and sends the MAC PDU C. Regarding how to handle the MAC PDU that is not sent, this embodiment of the present application does not limit this.

In another possible implementation manner, the second indication information may carry the priority order of the terminal device to transmit data. For example, the second indication information carries the first indication information indicating that terminal device A and the first indication information of terminal device B are triggered, and the second indication information indicates that the MAC corresponding to terminal device A is preferentially sent, if the terminal device Both A and terminal device B determine that the channel access process is completed, then both the MAC corresponding to terminal device A and the MAC corresponding to terminal device B can be sent, and the MAC PDU is preferentially sent.

Case 3: Priority identification includes service identification.

It is assumed that the terminal device is to send data of multiple services, and is denoted as service 1, service 2, and service 3. After receiving the first indication information, the terminal device generates a MAC PDU for service 1, service 2, and service 3, such as a data packet, and is denoted as MAC PDU 1, MAC PDU 2, MAC PDU 3.

A possible implementation manner, if the second indication information carries the first indication information indicating that the service 1 of the terminal device is triggered, if the terminal device determines that the channel access process is completed, the MAC PDU 1 corresponding to the terminal device may be sent, thereby The MAC PDU 2 corresponding to the terminal device and the MAC PDU 3 corresponding to the terminal device are not sent. For another example, the second indication information carries the first indication information indicating service 2 of the terminal device is triggered, and if the terminal device determines that the channel access process is completed, the MAC corresponding to the terminal device PDU 2 can be sent, so that the MAC corresponding to the terminal device PDU 1 and the MAC PDU 3 corresponding to the terminal device are not sent. For another example, the second indication information carries the first indication information indicating that the service 3 of the terminal device is triggered. If the terminal device determines that the channel access process is completed, the MAC corresponding to the terminal device may be sent, so that the MAC corresponding to the terminal device PDU1 and the MAC corresponding to the terminal equipment PDU2 are not sent. Regarding how to handle the MAC PDU that is not sent, this embodiment of the present application does not limit this.

In another possible implementation manner, the second indication information may carry the priority order of the terminal device to transmit data. For example, the second indication information carries the first indication information indicating the service 1 of the terminal device and the first indication information of the service 2 of the terminal device are both triggered, and the second indication information indicates that the service 1 of the terminal device is preferentially sent, if The terminal device determines that the channel access process is completed, and the MAC PDU 1 corresponding to the terminal device service 1 and the MAC PDU 2 corresponding to the terminal device service 2 can be sent, and the MAC PDU 1 is preferentially sent.

Case 4: The priority identification includes the identification of the logical channel.

Suppose that the terminal device wants to send data located on multiple logical channels, denoted as logical channel 1, logical channel 2, and logical channel 3. After receiving the first indication information, the terminal device generates a MAC PDU for logical channel 1, logical channel 2, and logical channel 3, such as data packets, and is denoted as MAC PDU 1, MAC PDU 2, MAC PDU 3.

A possible implementation manner, if the second indication information carries the first indication information indicating that the logical channel 1 of the terminal device is triggered, and if the terminal device determines that the channel access process is completed, the MAC PDU 1 corresponding to the terminal device may be sent, Therefore, the MAC PDU 2 corresponding to the terminal device and the MAC PDU 3 corresponding to the terminal device are not sent. For another example, the second indication information carries the first indication information indicating the logical channel 2 of the terminal device is triggered. If the terminal device determines that the channel access process is completed, the MAC PDU 2 corresponding to the terminal device can be sent, so that the terminal device corresponds to MAC PDU 1 and MAC PDU 3 corresponding to the terminal device are not sent. For another example, the second indication information carries the first indication information indicating the logical channel 3 of the terminal device is triggered. If the terminal device determines that the channel access process is completed, the MAC PDU 3 corresponding to the terminal device can be sent, so that the corresponding MAC PDU 1 and the MAC PDU 2 corresponding to the terminal device are not sent. Regarding how to handle the MAC PDU that is not sent, this embodiment of the present application does not limit this.

In another possible implementation manner, the second indication information may carry the priority order of the terminal device to transmit data. For example, the second indication information carries the first indication information indicating the logical channel 1 of the terminal device and the first indication information indicating the logical channel 2 of the terminal device are both triggered, and the second indication information indicates that the logical channel of the terminal device is preferentially sent 1. If the terminal device determines that the channel access process is completed, both the MAC PDU 1 corresponding to the logical channel 1 of the terminal device and the MAC PDU 2 corresponding to the logical channel 2 of the terminal device can be sent, and the MAC PDU 1 is preferentially sent.

Case 5: Priority identification includes BWP identification.

It is assumed that there are multiple BWPs that can be used by the terminal device, denoted as BWP1, BWP2, and BWP3. After receiving the first indication information, the terminal device generates a MAC PDU for the resources of BWP1, BWP2, and BWP3, such as a data packet, which is denoted as MAC PDU 1, MAC PDU 2, MAC PDU 3, respectively.

A possible implementation manner, if the first indication information carrying the BWP1 indicating the terminal device is triggered in the second indication information, and if the terminal device determines that the channel access process is completed, the MAC corresponding to the terminal device may be sent, so that the terminal The MAC corresponding to the device PDU 2 and the MAC corresponding to the terminal device PDU 3 are not sent. For another example, the first indication information carrying the BWP2 indicating the terminal device is triggered in the second indication information, and if the terminal device determines that the channel access process is completed, the MAC PDU 2 corresponding to the terminal device can be sent, so that the MAC device corresponding to the terminal device 1 The MAC PDU corresponding to the terminal device 3 is not sent. For another example, the second indication information carries the first indication information indicating that the BWP3 of the terminal device is triggered. If the terminal device determines that the channel access process is completed, the MAC PDU 3 corresponding to the terminal device can be sent, so that the MAC PDU corresponding to the terminal device 1 The MAC PDU corresponding to the terminal device 2 is not sent. Regarding how to handle the MAC PDU that is not sent, this embodiment of the present application does not limit this.

In another possible implementation manner, the second indication information may carry the priority order of the terminal device to transmit data. For example, the second indication information carries the first indication information indicating the BWP1 of the terminal device and the first indication information of the BWP2 of the terminal device are both triggered, and the second indication information indicates that the BWP1 of the terminal device is preferentially sent, if the terminal device determines After the channel access process is completed, the MAC corresponding to the terminal device BWP1 and the MAC corresponding to the terminal device BWP2 can be sent, and the MAC PDU1 is preferentially sent.

It should be understood that the foregoing has exemplarily described five cases in which the second indication information carries a priority identifier, and the embodiments of the present application are not limited thereto. For example, the above five cases may be used in combination or independently.

It should also be understood that, in the above five cases, the involved channel access process is completed, which may refer to the result of executing the first channel access process or the result of performing the second channel access process. The embodiment is not limited.

Based on the above technical solution, the terminal device receives the first indication information and the second indication information, and determines the frequency domain interval for the channel access process according to the second indication information, so that the transmission opportunities of the network device can be shared, and the channel is more easily obtained. In addition, the terminal device determines the resource for transmitting data according to the result of the channel access process and the resource information in the first indication information, so that it can communicate with the network device.

In addition, based on the above technical solution, for different terminal devices, by carrying the priority identifier in the second indication information, the terminal device whose priority identifier meets the requirements uses the above method, so that the appropriate terminal device can use the above method. Or, for different BWPs, by carrying the priority identifier in the second indication information, the BWP whose priority identifier meets the requirements uses the above method, so that a suitable BWP can use the above method. Alternatively, for different services, by carrying the priority identifier in the second indication information, the services whose priority identifier meets the requirements use the above method, so that the appropriate service can use the above method. Or, for different logical channels, by carrying the priority identifier in the second indication information, the logical channel whose priority identifier meets the requirements uses the above method, so that the appropriate logical channel can use the above method. Or, for different transmission parameters, by carrying the priority identifier in the second indication information, the transmission method whose priority identifier meets the requirements uses the above method, so that the appropriate transmission parameter can be implemented using the above method.

It should be understood that the foregoing is only for ease of understanding, and the interaction between the network device and the terminal device is used as an example to describe in detail the uplink transmission method provided by the embodiments of the present application, but this should not constitute any limitation to the present application. For example, the network device that sends the first indication information to the terminal device and the network device that receives the data sent by the terminal device may be the same network device or different network devices, which is not limited in this application.

The uplink transmission method according to the embodiment of the present application has been described in detail above with reference to FIGS. 6 to 11. Hereinafter, the device of the embodiment of the present application will be described in detail with reference to FIGS. 12 to 15.

12 is a schematic block diagram of an apparatus provided by an embodiment of the present application. As shown in FIG. 12, the device 500 may include a transceiver unit 510 and a processing unit 520.

In a possible design, the apparatus 500 may be the terminal device in the above method 200, for example, may be a terminal device, or a chip configured in the terminal device.

In a possible implementation manner, the transceiving unit 510 is used to receive first indication information, and the first indication information includes resource information; the transceiving unit 510 is further used to receive and receive second indication information; and the processing unit 520 is used to receive the second indication The information determines the first frequency domain interval, and performs the first channel access process on the first frequency domain interval; the transceiving unit 510 is also used to: according to the result of the first channel access process, in the first frequency domain interval first The uplink transmission is performed on the resource, and the first resource is determined according to the resource information.

Optionally, the processing unit 520 is further configured to: perform a second channel access process on the second frequency domain interval, the resource information corresponds to resources located on multiple frequency domain intervals, and the second frequency domain interval is multiple frequency domain intervals In the frequency domain interval except the first frequency domain interval; and the transceiver unit 510 is also used to: according to the result of the second channel access process, perform uplink transmission on the second resource in the second frequency domain interval, the second resource Determined based on resource information.

Optionally, the second indication information carries identification information of the first frequency domain interval, and the processing unit 520 is specifically configured to: determine the first frequency domain interval according to the identification information; or, the processing unit 520 is specifically configured to: determine to bear the second indication The frequency domain interval of the information is the first frequency domain interval.

Optionally, the resource information includes information of a frequency domain resource that activates BWP; or, the resource information includes information of a frequency domain resource of a subband that activates BWP and identification information of the subband; or, the resource information includes frequency of a subband that activates BWP. Information about domain resources.

Optionally, the second indication information includes information about an absolute time domain position for transmitting data; the processing unit 520 is further configured to determine the time domain resource for transmitting data according to the information about the absolute time domain position.

Optionally, the second indication information includes information about the first offset, and the first offset corresponds to any one of the following: transmission parameters, subbands, and BWP; the processing unit 520 is further configured to: according to the first time and the The information of an offset determines the position of the resource for transmitting data in the time domain, and the first time is the time when the second indication information is received.

Optionally, the first indication information further includes indication information of a relative time domain position, and the indication information of the relative time domain position is used to indicate the relative position of the resource for transmitting data of the terminal device in the time domain.

Optionally, the second indication information includes information of the first absolute time domain position; the processing unit 520 is further configured to determine that the resource for transmitting data is in the time domain according to the indication information of the relative time domain position and the information of the first absolute time domain position On the location.

Optionally, the second indication information includes information about a second offset, and the second offset corresponds to any one of the following: transmission parameters, subbands, and BWP; the processing unit 520 is further configured to: according to the first time, the The information about the two offsets and the indication information relative to the position in the time domain determines the position of the resource for transmitting data in the time domain, and the first time is the time when the second indication information is received.

Optionally, the second indication information further includes a priority identifier.

Optionally, the priority identifier includes any one of the following: the identifier of the terminal device, the BWP identifier, the service identifier, the logical channel identifier, and the identifier of the transmission parameter.

It should be understood that the apparatus 500 may correspond to the terminal device in the method 200 according to an embodiment of the present application, and the apparatus 500 may include a unit for executing the method performed by the terminal device in the method 200. In addition, each unit in the device 500 and the other operations and/or functions described above are for implementing the corresponding flow of the method 200, respectively. For the specific process of performing the above corresponding steps by each unit, please refer to the description of the method embodiments in conjunction with FIG. 6 to FIG. 11 in the foregoing, and for the sake of brevity, they will not be repeated here.

It should also be understood that when the apparatus 500 is a chip configured in a terminal device, the transceiver 510 in the apparatus 500 may be an input/output interface.

In another possible design, the apparatus 500 may be the network device in the above method 200, for example, it may be a network device, or a chip configured in the network device.

Specifically, the apparatus 500 may correspond to the network device in the method 200 according to an embodiment of the present application, and the apparatus 500 may include a unit for performing the method performed by the network device in the method 200. In addition, each unit in the device 500 and the other operations and/or functions described above are for implementing the corresponding flow of the method 200, respectively. For the specific process of performing the above corresponding steps by each unit, please refer to the description of the method embodiments in conjunction with FIG. 6 to FIG. 11 in the foregoing, and for the sake of brevity, they will not be repeated here.

It should also be understood that when the apparatus 500 is a chip configured in a network device, the transceiver unit 510 in the apparatus 500 may be an input/output interface.

It should be understood that the division of the units in the above device is only a division of logical functions, and in actual implementation, it may be fully or partially integrated into one physical entity or may be physically separated. Moreover, the units in the device can be implemented in the form of software invoking through processing elements; they can also be implemented in the form of hardware; some units can also be implemented in software invoking through processing elements, and some units can be implemented in hardware. For example, each unit can be a separate processing element, or it can be integrated in a chip of the device. In addition, it can also be stored in the memory in the form of a program, which is called and executed by a processing element of the device. Features. In addition, all or part of these units can be integrated together or can be implemented independently. The processing element described here can also become a processor, which can be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each unit above may be implemented by an integrated logic circuit of hardware in a processor element or in the form of software invoking through a processing element.

In one example, the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or, one or Multiple microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), or a combination of at least two of these integrated circuit forms. For another example, when the unit in the device can be implemented in the form of a processing element scheduling program, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. As another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

The above unit for receiving is an interface circuit of the device for receiving signals from other devices. For example, when the device is implemented as a chip, the receiving unit is an interface circuit used by the chip to receive signals from other chips or devices. The above unit for sending is an interface circuit of the device, which is used to send signals to other devices. For example, when the device is implemented as a chip, the sending unit is an interface circuit used by the chip to send signals to other chips or devices.

13 is a schematic structural diagram of a terminal device 800 provided by an embodiment of the present application. It may be the terminal in the above embodiment, and is used to implement the operation of the terminal in the above embodiment. As shown in FIG. 13, the terminal includes an antenna 810, a radio frequency part 820, and a signal processing part 830. The antenna 810 is connected to the radio frequency section 820. In the downlink direction, the radio frequency part 820 receives the information sent by the network device through the antenna 810, and sends the information sent by the network device to the signal processing part 830 for processing. In the upstream direction, the signal processing section 830 processes the terminal information and sends it to the radio frequency section 820, and the radio frequency section 820 processes the terminal information and sends it to the network device via the antenna 810.

The signal processing part 830 may include a modulation and demodulation subsystem to implement processing of each communication protocol layer of data; it may also include a central processing subsystem to implement processing of the terminal operating system and application layer; in addition, it may also include Other subsystems, such as multimedia subsystems and peripheral subsystems, among which multimedia subsystems are used to control terminal cameras, screen displays, etc., and peripheral subsystems are used to connect with other devices. The modem subsystem can be a separate chip. Optionally, the above device for the terminal may be located in the modem subsystem.

The modem subsystem may include one or more processing elements 831, for example, including a master CPU and other integrated circuits. In addition, the modem subsystem may also include a storage element 832 and an interface circuit 833. The storage element 832 is used to store data and programs, but the program used to execute the method performed by the terminal in the above method may not be stored in the storage element 832, but stored in a memory other than the modem subsystem for use When the modem subsystem is loaded and used. The interface circuit 833 is used to communicate with other subsystems. The above device for the terminal may be located in the modulation and demodulation subsystem, and the modulation and demodulation subsystem may be implemented by a chip including at least one processing element and an interface circuit, where the processing element is used to perform any of the methods performed by the above terminal The various steps of the interface circuit are used to communicate with other devices. In one implementation, the unit that implements the steps of the above method in the terminal may be implemented in the form of a processing element scheduler. For example, the device for the terminal includes a processing element and a storage element, and the processing element calls the program stored in the storage element to execute the above The method executed by the terminal in the method embodiment. The storage element may be a storage element whose processing element is on the same chip, that is, an on-chip storage element.

In another implementation, the program for executing the method executed by the terminal in the above method may be in a storage element on a different chip from the processing element, that is, an off-chip storage element. At this time, the processing element calls or loads the program from the off-chip storage element on the on-chip storage element to call and execute the method executed by the terminal in the above method embodiments.

In yet another implementation, the unit where the terminal implements each step in the above method may be configured as one or more processing elements, and these processing elements are provided on the modem subsystem, where the processing element may be an integrated circuit, for example : One or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these integrated circuits. These integrated circuits can be integrated together to form a chip.

The unit that implements the steps in the above method by the terminal may be integrated together and implemented in the form of a system-on-a-chip (SOC). The SOC chip is used to implement the above method. The chip may integrate at least one processing element and a storage element, and the processing element calls the stored program of the storage element to implement the above terminal execution method; or, the chip may integrate at least one integrated circuit for implementing the above terminal execution Or, it can be combined with the above implementation manners. The functions of some units are implemented by processing elements calling programs, and the functions of some units are implemented by integrated circuits.

It can be seen that the above apparatus for a terminal may include at least one processing element and an interface circuit, where at least one processing element is used to execute any method performed by the terminal provided in the above method embodiments. The processing element can perform part or all of the steps executed by the terminal in the first way: that is, calling the program stored in the storage element; or in the second way: that is, combining the instructions through the integrated logic circuit of the hardware in the processor element Some or all steps executed by the terminal are executed in a manner; of course, some or all steps executed by the terminal may also be executed in combination with the first mode and the second mode.

The processing element here is the same as described above, and may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above method, for example, one or more ASICs, or one or more micro-processing DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.

The storage element may be a memory or a collective term for multiple storage elements.

14 is a schematic structural diagram of a network device provided by an embodiment of the present application, which is a schematic structural diagram of a network device provided by an embodiment of the present application. It is used to realize the operation of the network device in the above embodiments. As shown in FIG. 14, the network device includes an antenna 901, a radio frequency device 902, and a baseband device 903. The antenna 901 is connected to the radio frequency device 902. In the upstream direction, the radio frequency device 902 receives the information sent by the terminal through the antenna 901, and sends the information sent by the terminal to the baseband device 903 for processing. In the downlink direction, the baseband device 903 processes the terminal information and sends it to the radio frequency device 902, and the radio frequency device 902 processes the terminal information and sends it to the terminal via the antenna 901.

The baseband device 903 may include one or more processing elements 9031, for example, including a main control CPU and other integrated circuits. In addition, the baseband device 903 may further include a storage element 9032 and an interface 9033. The storage element 9032 is used to store programs and data; the interface 9033 is used to exchange information with the radio frequency device 902, and the interface is, for example, a common public radio interface (common public radio interface) , CPRI). The above apparatus for network equipment may be located in the baseband apparatus 903, for example, the above apparatus for network equipment may be a chip on the baseband apparatus 903, the chip includes at least one processing element and an interface circuit, wherein the processing element is used to perform the above network Each step of any method performed by the device, the interface circuit is used to communicate with other devices. In one implementation, the unit of the network device that implements each step in the above method may be implemented in the form of a processing element scheduler. For example, an apparatus for a network device includes a processing element and a storage element, and the processing element calls the program stored by the storage element to Perform the method performed by the network device in the above method embodiments. The storage element may be a storage element on the same chip as the processing element, that is, an on-chip storage element, or a storage element on a different chip from the processing element, that is, an off-chip storage element.

In another implementation, the unit of the network device that implements the steps in the above method may be configured as one or more processing elements, and these processing elements are provided on the baseband device. The processing elements here may be integrated circuits, such as: Or multiple ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these integrated circuits. These integrated circuits can be integrated together to form a chip.

The units of the network device that implement the various steps in the above method may be integrated together and implemented in the form of a system-on-a-chip (SOC). For example, the baseband device includes the SOC chip for implementing the above method. The chip may integrate at least one processing element and a storage element, and the processing element calls the stored program of the storage element to implement the method performed by the above network device; or, the chip may integrate at least one integrated circuit for implementing the above network The method performed by the device; or, in combination with the above implementation manners, part of the functions of the unit are implemented by processing elements calling programs, and the functions of some of the units are implemented by integrated circuits.

It can be seen that the above apparatus for a network device may include at least one processing element and an interface circuit, where at least one processing element is used to execute any method performed by the network device provided in the above method embodiments. The processing element can perform part or all of the steps performed by the network device in the first way: that is, calling the program stored by the storage element; or in the second way: that is, combining the instructions through the integrated logic circuit of the hardware in the processor element Part or all of the steps performed by the network device; of course, some or all of the steps performed by the above network device may also be performed in combination with the first way and the second way.

The processing element here is the same as described above, and may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above method, for example, one or more ASICs, or one or more micro-processing DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.

The storage element may be a memory or a collective term for multiple storage elements.

15 is a schematic structural diagram of a network device provided by an embodiment of the present application, which is a schematic structural diagram of yet another network device provided by an embodiment of the present application.

As shown in FIG. 15, the network device includes: a processor 1010, a memory 1020, and an interface 1030, and the processor 1010, the memory 1020, and the interface 1030 are signally connected.

The above device is located in the network device, and the functions of each unit can be implemented by the processor 1010 calling the program stored in the memory 1020. That is, the above device includes a memory and a processor, and the memory is used to store a program that is called by the processor to perform the method in the above method embodiments. The processor here may be an integrated circuit with signal processing capabilities, such as a CPU. Or the functions of the above units can be realized by one or more integrated circuits configured to implement the above method. For example: one or more ASICs, or one or more microprocessor DSPs, or one or more FPGAs, or a combination of at least two of these integrated circuit forms. Alternatively, the above implementations can be combined.

An embodiment of the present application further provides a processing device, including a processor and an interface; the processor is used to perform the communication method in the foregoing method embodiment.

It should be understood that the above processing device may be a chip. For example, the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system chip (SoC), or It is a central processor (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (micro controller) , MCU), can also be a programmable controller (programmable logic device, PLD) or other integrated chips.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware processor, or may be executed and completed by a combination of hardware and software modules in the processor. The software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. In order to avoid repetition, they are not described in detail here.

It should be noted that the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software. The aforementioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components . The methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electronically Erase programmable EPROM (EEPROM) or flash memory. The volatile memory may be a random access memory (random access memory, RAM), which is 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 RAM), SDRAM), double data rate synchronous dynamic random access memory (double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection 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 memories of the systems and methods described herein are intended to include, but are not limited to these and any other suitable types of memories.

According to the method provided in the embodiments of the present application, the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on the computer, causes the computer to execute FIG. 6 to FIG. 11 The method of any one of the embodiments is shown.

According to the method provided in the embodiments of the present application, the present application also provides a computer-readable medium that stores program code, and when the program code is run on a computer, the computer is caused to execute the operations shown in FIGS. 6 to 11. The method of any one of the embodiments is shown.

According to the method provided in the embodiments of the present application, the present application further provides a system, which includes the foregoing one or more terminal devices and one or more network devices.

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

The network device in each of the above device embodiments corresponds exactly to the network device or terminal device in the terminal device and method embodiments, and the corresponding steps are performed by corresponding modules or units, for example, the communication unit (transceiver) performs the receiving or The steps of sending, other than sending and receiving, can be executed by the processing unit (processor). The function of the specific unit can refer to the corresponding method embodiment. There may be one or more processors.

The terms "component", "module", "system", etc. used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and/or a computer. By way of illustration, both the application running on the computing device and the computing device can be components. One or more components can reside in a process and/or thread of execution, and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The component may, for example, be based on a signal having one or more data packets (for example, data from two components that interact with another component between a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.

Persons of ordinary skill in the art may realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

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

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

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

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

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

The above is only the specific implementation of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (26)

1. A method of uplink transmission, characterized in that it includes:

   Receiving first indication information, where the first indication information includes resource information;

   Receive the second instruction information;

   Determine a first frequency domain interval according to the second indication information, and perform a first channel access process on the first frequency domain interval;

   According to the result of the first channel access process, uplink transmission is performed on the first resource in the first frequency domain interval, and the first resource is determined according to the resource information.
2. The method according to claim 1, wherein the method further comprises:

   Performing a second channel access process on a second frequency domain interval, the resource information corresponds to resources located on a plurality of frequency domain intervals, and the second frequency domain interval is the plurality of frequency domain intervals except the first A frequency domain interval outside the frequency domain interval;

   According to the result of the second channel access process, uplink transmission is performed on the second resource in the second frequency domain interval, and the second resource is determined according to the resource information.
3. The method according to claim 1 or 2, wherein the determining the first frequency domain interval according to the second indication information comprises:

   The second indication information carries identification information of the first frequency domain interval, and the first frequency domain interval is determined according to the identification information; or

   It is determined that the frequency domain interval carrying the second indication information is the first frequency domain interval.
4. The method according to any one of claims 1 to 3, characterized in that

   The resource information includes information of a frequency domain resource that activates the bandwidth part BWP; or,

   The resource information includes frequency domain resource information of the sub-band that activates BWP and identification information of the sub-band; or,

   The resource information includes information of frequency domain resources that activate the subband of the BWP.
5. The method according to any one of claims 1 to 4, wherein the second indication information includes information about an absolute time domain position for transmitting data;

   The method also includes:

   The position of the resource transmitting the data in the time domain is determined according to the information of the absolute time domain position.
6. The method according to any one of claims 1 to 4, wherein the second indication information includes information of a first offset, and the first offset corresponds to any one of the following: transmission parameters , Sub-band, BWP;

   The method also includes:

   The position of the resource for transmitting the data in the time domain is determined according to the first time and the information of the first offset, and the first time is the time when the second indication information is received.
7. The method according to any one of claims 1 to 4, wherein the first indication information further includes indication information of relative time domain position, and the indication information of relative time domain position is used to indicate the terminal The relative position of the device's data transmission resources in the time domain.
8. The method according to claim 7, wherein the second indication information includes information on a first absolute time domain position;

   The method also includes:

   The position of the resource for transmitting the data in the time domain is determined according to the indication information of the relative time domain location and the information of the first absolute time domain location.
9. The method according to claim 7, wherein the second indication information includes information of a second offset, and the second offset corresponds to any one of the following: transmission parameters, subbands, and BWP;

   The method also includes:

   Determine the location of the resource transmitting the data in the time domain according to the first time, the information about the second offset, and the indication information about the relative time domain position, the first time is to receive the first Two indicate the time of the message.
10. The method according to any one of claims 1 to 9, wherein the second indication information further includes a priority identifier.
11. The method according to claim 10, wherein the priority identifier includes any one of the following: an identifier of a terminal device, a BWP identifier, a service identifier, a logical channel identifier, and an identifier of a transmission parameter.
12. An upstream transmission device, characterized in that it includes:

    A transceiver unit, configured to receive first indication information, where the first indication information includes resource information;

    The transceiver unit is also used to: receive second indication information;

    A processing unit, configured to determine a first frequency domain interval according to the second indication information, and perform a first channel access process on the first frequency domain interval;

    The transceiver unit is further configured to: according to the result of the first channel access process, perform uplink transmission on the first resource in the first frequency domain interval, and the first resource is determined according to the resource information.
13. The device according to claim 12, characterized in that

    The processing unit is further configured to: perform a second channel access process on a second frequency domain interval, the resource information corresponds to resources located on multiple frequency domain intervals, and the second frequency domain interval is the multiple Frequency domain intervals other than the first frequency domain interval in the frequency domain interval;

    And the transceiver unit is further configured to: according to the result of the second channel access process, perform uplink transmission on the second resource in the second frequency domain interval, and the second resource is determined according to the resource information.
14. The device according to claim 12 or 13, wherein

    The second indication information carries identification information of the first frequency domain interval, and the processing unit is specifically configured to: determine the first frequency domain interval according to the identification information; or

    The processing unit is specifically configured to determine that the frequency domain interval carrying the second indication information is the first frequency domain interval.
15. The device according to any one of claims 12 to 14, characterized in that

    The resource information includes information of a frequency domain resource that activates the bandwidth part BWP; or,

    The resource information includes frequency domain resource information of the sub-band that activates BWP and identification information of the sub-band; or,

    The resource information includes information of frequency domain resources that activate the subband of the BWP.
16. The device according to any one of claims 12 to 15, wherein the second indication information includes information about an absolute time-domain position for transmitting data;

    The processing unit is further configured to determine the location of the resource for transmitting the data in the time domain according to the information of the absolute time domain location.
17. The device according to any one of claims 12 to 15, wherein the second indication information includes information of a first offset, and the first offset corresponds to any one of the following: transmission parameters , Sub-band, BWP;

    The processing unit is further configured to determine the location of the resource for transmitting the data in the time domain according to the first time and the information about the first offset, where the first time is for receiving the second indication information time.
18. The device according to any one of claims 12 to 15, wherein the first indication information further includes indication information of a relative time domain position, and the indication information of the relative time domain position is used to indicate the terminal The relative position of the device's data transmission resources in the time domain.
19. The apparatus according to claim 18, wherein the second indication information includes information about a first absolute time domain position;

    The processing unit is further configured to determine the position of the resource for transmitting the data in the time domain according to the indication information of the relative time domain location and the information of the first absolute time domain location.
20. The apparatus according to claim 18, wherein the second indication information includes information of a second offset, and the second offset corresponds to any one of the following: transmission parameters, subbands, and BWP;

    The processing unit is also used to:

    Determine the location of the resource transmitting the data in the time domain according to the first time, the information about the second offset, and the indication information about the relative time domain position, the first time is to receive the first Two indicate the time of the message.
21. The device according to any one of claims 12 to 20, wherein the second indication information further includes a priority identifier.
22. The apparatus according to claim 20, wherein the priority identifier includes any one of the following: an identifier of a terminal device, a BWP identifier, a service identifier, a logical channel identifier, and an identifier of a transmission parameter.
23. An upstream transmission device is characterized by comprising a processor and an interface circuit,

    The processor is used to communicate with a network device through the interface circuit and execute the method according to any one of claims 1 to 11.
24. An upstream transmission device, characterized in that it includes a processor for connecting to a memory, reading and executing a program stored in the memory, so as to implement the method according to any one of claims 1 to 11.
25. A terminal device, characterized by comprising the device according to any one of claims 12 to 22.
26. A computer-readable medium, characterized in that it includes a computer program, which when run on a computer, causes the computer to execute the method according to any one of claims 1 to 11.

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