RU2775831C2 - Uplink transmission method, terminal device and network device - Google Patents

Abstract

FIELD: wireless communication.

SUBSTANCE: first transmission power is set for the first uplink channel based on channel priority of the first uplink channel, channel priority of the first physical random access channel (hereinafter – PRACH) and channel priority of the second PRACH. In this case, the first uplink channel contains at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH). The first time domain resource, at which the first uplink channel is located, the second time domain resource, at which the first PRACH is located, and the third time domain resource, at which the second PRACH is located, are overlapped. Channel priority of the second PRACH is higher than channel priority of the first uplink channel, channel priority of the first uplink channel is higher than channel priority of the first PRACH, and the first transmission power is more than 0. A terminal device sends the first uplink channel with the first transmission power.

EFFECT: improvement of performance at limited transmission power.

19 cl, 13 dwg

Description

[0001] The present application claims priority on the basis of Chinese Patent Application No. 201710682571.1, filed August 10, 2017, entitled "UPLINK TRANSMISSION METHOD, TERMINAL DEVICE, AND NETWORK DEVICE", which is incorporated herein by reference in its entirety.

FIELD OF TECHNOLOGY

[0002] This application relates to the field of wireless communication and, more specifically, to the uplink transmission method, terminal device and network device.

BACKGROUND OF THE INVENTION

[0003] In the system of long-term development (Long Term Evolution, LTE) and advanced system of long-term development (Long Term Evolution-Advanced, LTE-A) mobile communication technology of the 4th generation (4th Generation, 4G) (4th Generation mobile communications technology) , the terminal device sends a Physical Uplink Shared Channel (PUSCH) based on the Uplink Grant (UL grant) information of the network device, or sends a Physical Random Access Channel (PRACH) to connection with the network device, or sends a Physical Uplink Control Channel (PUCCH), or sends a Sounding Reference Signal (SRS) or the like.

[0004] In order to meet the health requirement of the human body, a limit is set on the maximum transmit power of the terminal device. When multiple channels (eg, PRACH, PUSCH, PUCCH, and SRS) need to be sent on the same time domain resource due to the mentioned maximum transmit power limitation, how the power should be set is a task to be solved. The power setting principle is defined in the protocol of 4G mobile communication technology.

[0005] Compared with 4G mobile communication technology, in the New Radio (NR) system of 5th Generation (5G) mobile communication technology, there are many types of services, and different types of services correspond to different service requirements. For example, an Ultra-Reliable and Low Latency Communications (URLC) service requires low latency and high reliability, that is, the transmission is completed in 1 ms; enhanced mobile broadband (eMBB) service does not have any delay requirement but requires high spectrum efficiency; and the Machine Type Communication (MTC) service requires periodic low power transmission.

[0006] If the NR system still follows the 4G mobile communication technology protocol, channels of some types of services that require low delay and high reliability cannot be transmitted, which affects the transmission quality of the service.

SUMMARY OF THE INVENTION

[0007] This application provides an uplink transmission method, a terminal device, and a network device, so that the terminal device can more properly set the transmission power to improve the transmission quality of a service.

[0008] According to a first aspect, an uplink transmission method is provided. The method includes: setting, by a terminal device, a first transmission power for a first uplink channel based on a channel priority of the first uplink channel and a channel priority of the first physical random access channel PRACH, wherein the first uplink channel includes at least one of the physical uplink shared channel PUSCH and the physical uplink control channel PUCCH, the first time domain resource on which the first uplink channel is located and the second time domain resource on which the first PRACH is located overlap, the channel priority of the first channel the uplink is greater than or equal to the channel priority of the first PRACH, and the first transmit power is greater than 0; and sending, by the terminal apparatus, the first uplink channel at the first transmission power.

[0009] According to the uplink transmission method in the first aspect, when the PUSCH time domain resource and/or the PUCCH time domain resource overlaps/overlaps the time domain resource of the first PRACH, the PUSCH priority and/or the PUCCH priority is/are set higher than or equal to (equal to) the channel priority of the first PRACH, and the terminal device sets the first transmit power for the PUSCH and/or PUCCH based on this channel priority, so that compared to the current solution, the transmit power can be more preferably set for the PUSCH and/or PUCCH, and the power setting is more correct and more appropriate for the PUSCH and/or PUCCH, thereby improving the transmission quality of the service.

[0010] It should be understood that the first uplink channel may include one or more uplink channels, wherein the durations of the time domain resources on which the first uplink channels are located may be the same or may be different; the first PRACH may include one or more PRACHs, and the first PRACH may be from the same system or may be from different systems.

[0011] It should be understood that the PUSCH may be a normal PUSCH or may be a short physical uplink shared channel (short PUSCH, sPUSCH), and the duration of the time domain resource on which the sPUSCH is located is from one symbol to one slot.

[0012] It should be understood that the PUCCH may be a normal PUCCH or may be a short physical uplink control channel (short PUCCH, sPUCCH), and the duration of the time domain resource on which the sPUCCH is located is from one symbol to one slot.

[0013] In an exemplary implementation of the first aspect, the first uplink channel includes at least one of the following PUSCHs: PUSCH transmission without grant, PUSCH retransmission; PUSCH corresponding to the first scheduling request, wherein the first scheduling request is used by the terminal device to request the first data transmission resource; PUSCH corresponding to the first logical channel; PUSCH, which carries a transport block of the first transport block size; PUSCH, which carries the transport block of the first code rate; PUSCH, which carries the transport block of the first modulation scheme; and PUSCH, which carries information about the first delay requirement, wherein the first delay requirement is less than or equal to the first time threshold. In this exemplary implementation, the PUSCH is predefined as at least one of a PUSCH corresponding to a scheduling request, a PUSCH corresponding to a logical channel, a PUSCH that carries a transport block of a specific transport block size, a PUSCH that carries a code rate transport block, and a PUSCH that carries information about the delay requirement, and/or the PUSCH is predetermined to be at least one of a PUSCH transmission without grant and a retransmitted PUSCH. When the PUSCH meets some predetermined condition, the PUSCH is considered to be of relatively high importance and the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH.

[0014] It should be understood that the first uplink channel includes a PUSCH that carries a transport block of a first transport block size, wherein the first transport block size is A bits (or A bytes) and A is a positive integer greater than; or the first uplink channel includes a PUSCH that carries a transport block of a first transport block size, wherein the smallest value of the first transport block size is B bits (or B bytes), and B is a positive integer; or the first uplink channel includes a PUSCH that carries a transport block of a first transport block size, wherein the largest value of the first transport block size is C bits (or C bytes), and C is a positive integer; or the first uplink channel includes a PUSCH that carries a transport block of a first transport block size, where the first transport block size ranges from P to Q bits (or P to Q bytes), and P and Q are positive integers .

[0015] It should be understood that the first uplink channel includes a PUSCH that carries a transport block of a first code rate, where the first code rate is F and F is a positive number; or the first uplink channel includes a PUSCH that carries a transport block of a first code rate, wherein the smallest value of the first code rate is G and G is a positive number; or the first uplink channel includes a PUSCH that carries a transport block of a first code rate, wherein the largest value of the first code rate is H and H is a positive number; or the first uplink channel includes a PUSCH that carries a transport block of the first code rate, wherein the range of the first code rate is I to J, and I and J are positive numbers.

[0016] In an exemplary implementation of the first aspect, the first uplink channel includes a PUCCH and/or PUSCH, and the PUCCH and/or PUSCH include/include at least one of the following uplink control information: ACK acknowledgment information; information corresponding to the second delay requirement, wherein the second delay requirement is less than or equal to the second time threshold; and a second scheduling request, wherein the second scheduling request is used by the terminal device to request a second communication resource. In this exemplary implementation, when the PUCCH and/or PUSCH includes at least one of the ACK information and the predetermined second scheduling request information, the PUCCH and/or PUSCH is considered to have a relatively high importance and the channel priority of the first uplink channel is higher. or equal to the channel priority of the first PRACH.

[0017] In an exemplary implementation of the first aspect, the first PRACH includes at least one of the following PRACHs: a PRACH in a serving cell of a secondary sTAG time alignment group; and PRACH in the first format. In this exemplary implementation, when the first PRACH is in the serving cell of the secondary sTAG and/or the first PRACH exists in the first format, the first PRACH is considered to have a relatively high importance and the channel priority of the first uplink channel is greater than or equal to the channel priority first PRACH.

[0018] In an exemplary implementation of the first aspect, setting by the terminal device the first transmission power for the first uplink channel based on the channel priority of the first uplink channel and the channel priority of the first PRACH includes: setting by the terminal device the first transmission power for the first uplink channel based on the channel priority of the second PRACH, the channel priority of the first uplink channel, and the channel priority of the first PRACH, wherein the first time domain resource on which the first uplink channel is located, the second time domain resource on which the first PRACH is located, and the third resource the time domain on which the second PRACH is located overlap, and the channel priority of the second PRACH is higher than the channel priority of the first uplink channel.

[0019] In an exemplary implementation of the first aspect, the method further includes: the terminal device discarding the first PRACH and setting the second transmit power to 0 for the first PRACH.

[0020] In an exemplary implementation of the first aspect, the method further includes: receiving by the terminal device first information, wherein the first information is used to instruct the terminal device to send the first PRACH, and the first information is configured in higher layer signaling or carried over a physical channel. In this exemplary implementation, when the first PRACH is a specific PRACH defined using said information, the first PRACH is considered to be of relatively low importance and the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH.

[0021] In an exemplary implementation of the first aspect, the method further includes: receiving, by the terminal device, second information on the third time domain resource, wherein the second information is used to instruct the terminal device to send the first uplink channel on the first time domain resource, and the channel priority the first uplink channel is greater than or equal to the channel priority of the first PRACH; or the terminal device receiving the second information on the third time domain resource, wherein the second information is used to instruct the terminal device to send the first uplink channel on the first time domain resource and the time interval from the start of the third time domain resource to the start of the first time domain resource less than or equal to the third time threshold. In this possible implementation, when the first uplink channel is explicitly or implicitly indicated as an important channel, and/or when the time interval from the sending time of the second information used for scheduling the first uplink channel to the sending time of the first uplink channel less than some particular threshold value, the first uplink channel is considered to have a relatively high importance and the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH.

[0022] In an exemplary implementation of the first aspect, the duration of the first time domain resource is the first time duration and/or the subcarrier spacing of the frequency domain resource on which the first uplink channel is located is the first subcarrier spacing; and/or the duration of the second time domain resource is the second time duration and/or the subcarrier spacing of the frequency domain resource on which the first PRACH is located is the second subcarrier spacing; and/or the first uplink channel is the first uplink channel retransmitted for the Kth time, where K ^is an integer greater than or equal to 1. In this possible implementation, when the first uplink channel uses a specific time duration and/or a specific subcarrier spacing, the first PRACH uses a specific time duration and/or a specific subcarrier spacing, and/or the first uplink channel is retransmitted for the Kth time, the first uplink channel is considered to have relatively high importance and priority channel of the first uplink channel is higher than or equal to the channel priority of the first PRACH.

[0023] In an exemplary implementation of the first aspect, the method further includes: setting, by the terminal device, a second transmit power for the first PRACH based on the channel priority of the first uplink channel and the channel priority of the first PRACH, wherein the sum of the first transmit power and the second transmit power is less than or equal to the maximum allowable transmission power of the terminal device, and the second transmission power is greater than 0; and sending by the terminal device the first PRACH with the second transmission power.

[0024] In an exemplary implementation of the first aspect, the second transmit power is less than the required power of the first PRACH.

[0025] In an exemplary implementation of the first aspect, the sum of the required power of the first uplink channel and the required power of the first PRACH is greater than the first available power value, wherein the first available power value is less than or equal to the maximum allowable transmit power, and the sum of the first transmit power and the second power transmission is less than or equal to the first available power value.

[0026] In an exemplary implementation of the first aspect, the first available power value is the terminal device's available transmit power minus the required power of the second PRACH.

[0027] According to a second aspect, a terminal device is provided, configured to perform the method in the first aspect, or any possible implementation of the first aspect. In particular, the terminal device may include a module configured to perform the method according to the first aspect, or any possible implementation of the first aspect.

[0028] The communication device is provided according to the third aspect. The communication device may be a terminal device or may be a chip located in the terminal device. The communication device includes a processor and a memory, wherein the memory is configured to store an instruction, the processor is configured to execute said instruction stored in the memory, and such execution of said instruction stored in the memory allows the communication device to perform the method according to the first aspect, or any possible implementation of the first aspect. Of course, the communications device may further include a transceiver, wherein the transceiver is communicatively coupled to a processor and/or memory to receive and send data.

[0029] According to a fourth aspect, a computer storage medium is provided, wherein the computer storage medium stores an instruction, and when the instruction is executed on the computer, the computer is enabled to execute the method according to the first aspect, or any possible implementation of the first aspect.

[0030] According to a fifth aspect, a computer program product is provided including an instruction, and when the computer program product instruction is executed on a computer, the computer executes the method according to the first aspect or any possible implementation of the first aspect.

[0031] According to a sixth aspect, an uplink transmission method is provided. The method includes: sending by a network device first information, wherein the first information is used to instruct the terminal device to send a first PRACH, wherein the first information is configured in higher layer signaling or carried over a physical channel, a second time domain resource on which the first PRACH is located , and the first time domain resource on which the first uplink channel is located overlap, the first uplink channel includes at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH, and the priority the channel of the first uplink channel is higher than or equal to the channel priority of the first PRACH; and detecting, by the network device, the first PRACH in the second time domain resource.

[0032] According to the uplink transmission method in the sixth aspect, the network device instructs the terminal device to send the first PRACH. When the PUSCH time domain resource and/or the PUCCH time domain resource overlaps/overlaps the time domain resource of the first PRACH, the PUSCH channel priority and/or the PUCCH channel priority is/are set higher than or equal to the first PRACH channel priority, so that compared to the existing by decision, the terminal device can more preferably set the transmission power for the PUSCH and/or PUCCH, and the power setting is more correct and more appropriate for the PUSCH and/or PUCCH, thereby improving the transmission quality of the service.

[0033] According to a seventh aspect, an uplink transmission method is provided. The method includes: sending, by the network device, second information on the third time domain resource, wherein the second information is used to instruct the terminal device to send the first uplink channel on the first time domain resource, and the channel priority of the first uplink channel is greater than or equal to the priority channel of the first PRACH; or the network device sending the second information on the third time domain resource, the second information being used to instruct the terminal device to send the first uplink channel on the first time domain resource and the time interval from the start of the third time domain resource to the start of the first time domain resource less than or equal to a third time threshold, wherein the first uplink channel includes at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH, a first time domain resource and a second time domain resource, on which the first PRACH is located overlap and the channel priority of the first uplink channel is greater than or equal to the channel priority of the first PRACH; and detecting, by the network device, the first uplink channel in the first time domain resource.

[0034] According to the uplink transmission method in the seventh aspect, the network device instructs the terminal device to send the first uplink channel. When the PUSCH time domain resource and/or the PUCCH time domain resource overlaps/overlaps the time domain resource of the first PRACH, the first uplink channel is explicitly or implicitly indicated as an important channel, and/or when the time slot since the second information used for scheduling was sent of the first uplink channel, until the sending time of the first uplink channel is less than some specific threshold, the first uplink channel is implicitly indicated as having a relatively high importance, and the channel priority of the first uplink channel is greater than or equal to the channel priority of the first PRACH, so that, compared with the existing solution, the terminal device can more preferably set the transmission power for the PUSCH and/or PUCCH, and the power setting is more correct and more appropriate for the PUSCH and/or PUCCH, thereby improving the transmission quality of the service.

[0035] According to an eighth aspect, a network device is provided, configured to perform the method in the sixth aspect or the seventh aspect. In particular, the network device may include a module configured to perform the method in the sixth aspect or the seventh aspect.

[0036] The communication device is provided according to the ninth aspect. The communication device may be a network device or may be a chip located in the network device. The communication device includes a processor and a memory, wherein the memory is configured to store an instruction, the processor is configured to execute said instruction stored in the memory, and such execution of said instruction stored in the memory allows the communication device to execute the method in the sixth or seventh aspect. aspect. Of course, the communications device may further include a transceiver, wherein the transceiver is communicatively coupled to a processor and/or memory to receive and send data.

[0037] According to a tenth aspect, a computer storage medium is provided, wherein the computer storage medium stores an instruction, and when the instruction is executed on the computer, the computer is enabled to execute the method in the sixth aspect or the seventh aspect.

[0038] According to an eleventh aspect, a computer program product including an instruction is provided, and when the computer program product instruction is executed on the computer, the computer executes the method in the sixth aspect or the seventh aspect.

[0039] The effects that can be obtained according to the aspects from the second aspect to the eleventh aspect correspond to the effects that can be obtained according to the first aspect. The details are not repeated here.

BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG. 1 is a schematic representation of an application scenario to which the solutions according to the embodiments of this application may be applied;

[0041] FIG. 2 is a schematic representation of a power setting method;

[0042] FIG. 3 is a schematic representation of a power setting method;

[0043] FIG. 4 is a schematic flowchart of an uplink transmission method according to an embodiment of this application;

[0044] FIG. 5 is a schematic representation of an uplink transmission method according to an embodiment of this application;

[0045] FIG. 6 is a schematic representation of an uplink transmission method according to another embodiment of this application;

[0046] FIG. 7 is a schematic representation of an uplink transmission method according to another embodiment of this application;

[0047] FIG. 8 is a schematic representation of an uplink transmission method according to another embodiment of this application;

[0048] FIG. 9 is a schematic representation of the transmission of the URLLC service;

[0049] FIG. 10 is a schematic block diagram of a terminal device according to an embodiment of this application;

[0050] FIG. 11 is a schematic block diagram of a terminal device according to another embodiment of this application;

[0051] FIG. 12 is a schematic block diagram of a network device according to an embodiment of this application; and

[0052] FIG. 13 is a schematic block diagram of a network device according to another embodiment of this application.

DESCRIPTION OF EMBODIMENTS

[0053] The technical solutions of the present application will now be described with reference to the accompanying drawings.

[0054] Embodiments of this application can be applied to a variety of wireless communication systems, for example, Global System for Mobile communication (GSM), Code Division Multiple Access (CDMA), Broadband Multiple Access Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), and Universal Mobile Telecommunications System (UMTS), and are particularly applicable to the system LTE, LTE-A system and NR system.

[0055] This application describes embodiments with reference to a network device and a terminal device.

[0056] The terminal device may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile console, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device , user agent, or user device. The terminal device may be a station (STATION, ST) in a wireless local area network (Wireless Local Area Network, WLAN); or may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a portable device having a wireless communication function, a computing device, another processing device connected to the wireless modem, a device in a vehicle, a wearable device; or it may be a terminal device in a next generation communication system such as a 5G system, a terminal device in a future evolved Public Land Mobile Network (PLMN), a terminal device in an NR system, or the like.

[0057] By way of example, and not limitation, in embodiments of this application, the terminal device may be a wearable device. A wearable device may also be referred to as a wearable smart device, and is a general term for devices that can be worn and are intelligently designed for everyday wear using wearables such as glasses, gloves, watches, clothes or shoes. A wearable device is a portable device that is worn directly on the body or embedded in the wearer's clothing or accessories. The wearable device is not just a hardware device, but realizes a powerful function through software support, data exchange, and cloud data exchange. In a broad sense, a wearable smart device includes a device that provides a complete function, is large in size, and can realize all or some of the functions without relying on a smartphone, such as a smart watch or smart glasses; and includes a device that only focuses on a specific type of application function and must be used in conjunction with another device such as a smartphone, such as various smart bracelets and smart jewelry used for vital signs monitoring.

[0058] A network device may be a device configured to communicate with a mobile device. For example, a network device may be an Access Point (AP) in WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, or may be a NodeB (NB) in WCDMA, or may be an evolved Node B (evolved Node B, eNB, or eNodeB) in LTE, or can be a relay node, access point, vehicle device, wearable device, and network device in a future 5G system, or a network device in a future advanced PLMN, or a new generation Node B (new generation NodeB, gNodeB) in the NR system.

[0059] In embodiments of this application, a network device provides a service to a cell, and a terminal device communicates with the network device using a transmission resource (eg, a frequency domain resource or referred to as a spectrum resource) used by the cell. The cell may be a cell corresponding to a network device (eg, a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cell herein may include a Metro cell, a Micro cell, a Pico cell, a Femto cell, or the like. These small cells are characterized by low coverage and low transmission power, and are suitable for providing a high-speed data service.

[0060] In addition, a plurality of cells may operate on the same frequency on a carrier of an LTE system or an NR system. In some specific scenarios, the concept of a carrier can be considered to be similar to the concept of a cell. For example, in a Carrier Aggregation (CA) scenario, when a secondary component carrier is configured for a terminal device, both the carrier index of the secondary component carrier itself and the Cell Identifier (Cell ID) of the secondary cell that operates on the secondary component carrier are transferred. carrier. In this case, the concept of a carrier can be considered to be similar to the concept of a cell, for example, that the terminal device accesses the carrier is equivalent to the terminal device accesses the cell.

[0061] The method and apparatus that are provided in the embodiments of this application can be applied to a terminal device or a network device, and the terminal device or network device includes a hardware layer, an operating system layer operating on top of the hardware layer, and an application layer, running above the operating system level. The hardware level includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement the processing of services through a Process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browser, contacts, word processing software, and instant messaging software. In addition, the specific structure of the execution component of the method provided in the embodiments of this application is not particularly limited in the embodiments of this application, as long as the program recording code of the method provided in the embodiments of the present invention can be run to perform communication according to the method provided in embodiments of the present application. For example, an execution component of the method provided in the embodiments of this application may be a terminal device or a network device, or a functional module that can call a program and execute that program in the terminal device or network device.

[0062] In addition, aspects or features in embodiments of the present application may be implemented as a method, apparatus, or product that uses standard programming and/or development techniques. The term "product" as used in this application encompasses a computer program that can be accessed from any computer-readable component, medium or medium. For example, computer-readable media can include, but is not limited to, a magnetic storage device (such as a hard disk, floppy disk, or magnetic tape), an optical disc (such as a Compact Disc, CD), or a Digital Versatile Disc (Digital Versatile Disc). , DVD)), a smart card, and a flash memory component (such as an Erasable Programmable Read-Only Memory (EPROM), card, flash drive, or flash drive). In addition, the various storage media described in this specification may indicate one or more devices and/or other computer-readable media that are configured to store information. The term "computer-readable medium" may include, but is not limited to, a radio channel and various other media that may store, contain, and/or carry instructions and/or data.

[0063] FIG. 1 is a schematic representation of an application scenario to which the solutions according to the embodiments of this application may be applied. As shown in FIG. 1, the application scenario includes a cell base station 101 as well as a terminal apparatus 102 and a terminal apparatus 103 that are in the coverage area of the cell base station 101 and which communicate with the cell base station 101. The cell base station 101 may be an evolved Node B in the LTE system, the terminal apparatus 102 and the terminal apparatus 103 may be terminal apparatuses in the corresponding LTE system, and the cell base station 101 and the terminal apparatus 102 are apparatuses that support short transmission time interval transmission. (Transmission Time Interval, TTI), and the terminal device 103 is a device that does not support short TTI (sTTI, sTTI) transmission. The cell base station 101 may communicate with the terminal device 102 separately using a short TTI or a normal TTI of one millisecond (ms). The cell base station 101 may communicate with the terminal apparatus 103 using a normal TTI of 1 ms.

[0064] Some of the concepts and technologies in this application are briefly described below.

[0065] Uplink transmission and downlink transmission in an LTE-A system:

[0066] The time domain in the LTE-A system is identified by a radio frame (Radio Frame). Each radio frame includes ten subframes (subframe) of 1 ms, and each subframe includes two slots (slot). For a normal cyclic prefix (normal CP, normal Cyclic Prefix), each slot includes seven symbols (symbol); and for the Extended Cyclic Prefix, each slot includes six characters. A Resource Element (RE) is the smallest unit of time-frequency resource in an LTE-A system, includes one symbol in the time domain, and includes one subcarrier in the frequency domain. The uplink symbol of the LTE-A system is a Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol, and the downlink symbol is an Orthogonal Frequency Division Multiplexing symbol. OFDM). It should be noted that an Orthogonal Frequency Division Multiple Access (OFDMA) uplink multiple access method has been introduced in the subsequent technology of the LTE-A system, and hence the uplink symbol may alternatively be an OFDM symbol. In this application, an uplink symbol and a downlink symbol are briefly referred to as a symbol. Data packets whose TTIs are reduced to between one symbol and 0.5 ms are collectively referred to as sTTI data packets, or a data packet whose TTI is less than 1 ms is referred to as an sTTI data packet.

[0067] Uplink transmission and downlink transmission in an NR system:

[0068] In the NR system, each subframe includes a plurality of OFDM symbols or a plurality of SC-FDMA symbols, but the subframe duration may not be 1 ms, and this depends on the subcarrier spacing value. If the subcarrier spacing is 15 kHz, the subframe length is 1 ms; or if the subcarrier spacing is greater than 15 kHz, the subframe duration may be less than 1 ms. The NR system may include transmitting multiple subcarrier spacings, and different subcarrier spacing patterns are referred to by different numerologies. In other words, the durations of symbols in different numerologies are different.

[0069] Higher level signaling:

[0070] The higher layer signaling may be signaling sent by the upper layer protocol layer, and the upper layer protocol layer is at least one of the protocol layers above the physical layer. The upper-level protocol layer in particular may be at least one of the following protocol layers: a Medium Access Control (MAC) layer, a Radio Link Control (RLC) layer, a Packet Data Convergence protocol layer. Protocol, PDCP), radio resource control layer (Radio Resource Control, RRC), non-access layer (Non-Access Stratum, NAS) and the like.

[0071] Transfer without provision:

[0072] There are many types of services in the NR system of 5G mobile communication technology, and different types of services correspond to different service requirements. Therefore, the NR system introduces a transfer without grant (grant-free or free from grant). In embodiments of the present application, no grant transmission may be understood as any one or more of the following values, or may be understood as a combination of some technical features in the following set of values, or another similar value.

[0073] The non-grant transmission may be as follows: The network device preallocates the transmission resource set to the terminal device and notifies the terminal device of the transmission resource set. When there is a need for uplink data transmission, the terminal device selects at least one transmission resource from a plurality of transmission resources previously allocated by the network device and sends uplink data using the selected transmission resource. The network device detects on one or more transmission resources of the transmission resources of the preallocated set the uplink data sent by the terminal device. The detection may be blind detection, or may be detection performed based on the control field in the uplink data, or may be detection performed in another manner.

[0074] The non-grant transmission may be as follows: The network device preallocates a plurality of transmission resources to a terminal device, and notifies the terminal device of the plurality of transmission resources, so that when there is a need for uplink data transmission, the terminal device selects at least one resource transmission from the transmission resources of the plurality previously allocated by the network device, and sends uplink data using the selected transmission resource.

[0075] The non-grant transmission may be as follows: The terminal device obtains information about a plurality of pre-allocated transmission resources, and when there is a need for uplink data transmission, selects at least one transmission resource from the transmission resources of said plurality and sends uplink data communications using the selected transmission resource. A plurality of transmission resources may be received from a network device or may be predetermined.

[0076] Non-provisioning transmission may refer to a method for implementing uplink data transmission of a terminal device without dynamically scheduling a network device. Dynamic scheduling may be a scheduling technique in which a network device indicates, using signaling, a transmission resource for each uplink data transmission of a terminal device. Optionally, a terminal device's implementation of uplink data transmission may be understood to mean that uplink data transmission of two or more terminal devices is allowed on the same time-frequency resource. Optionally, the transmission resource may be a transmission resource of one or more time domain resources after a certain point at which the terminal device receives said signaling.

[0077] Transmission without grant may mean that the terminal device performs data transmission on the uplink without granting the network device. The grant may be as follows: The terminal device sends an uplink scheduling request to the network device, and the network device sends an uplink grant to the terminal device after receiving the scheduling request, wherein the uplink grant indicates an uplink transmission resource allocated to the terminal device.

[0078] Non-grant transmission may be a contention-based transmission method, and may specifically be as follows: A plurality of terminals simultaneously perform uplink data transmission on the same pre-allocated time-frequency resource without granting a base station.

[0079] In the LTE system and the LTE-A system, the cases where the terminal device sends PRACH, PUSCH, and PUCCH are as follows:

[0080] Send PUSCH:

[0081] Currently, in the LTE system and the LTE-A system, the terminal device sends a PUSCH based on scheduling. The terminal device receives in subframe n uplink scheduling information (Uplink grant, UL grant) carried on the Physical Downlink Control Channel (PDCCH) sent by the network device. The terminal device sends a PUSCH, at the earliest, in subframe n+4 based on the uplink scheduling information.

[0082] Send PUCCH:

[0083] (1) Sending a Hybrid Automatic Repeat request (HARQ), including an acknowledgment (ACKnowledgement, ACK) or a negative acknowledgment (Negative ACKnowledgement, NACK):

[0084] The terminal device receives in subframe n the PDSCH and PDCCH that are sent by the network device, while the PDSCH and PDCCH can carry downlink scheduling information (Downlink grant, DL grant), and the terminal device generates an ACK or NACK based on the decoding status of the PDSCH and sends PUCCH in subframe n+4, the earliest.

[0085] (2) Aperiodic sending of Channel State Information (CSI):

[0086] The terminal device receives in subframe n a UL grant or a DL grant carried on the PDCCH. The terminal device sends the PUCCH in subframe n+4 or subframe n+5 based on the PDCCH indication information.

[0087] (3) CSI Periodic Sending: The terminal device periodically sends a PUCCH.

[0088] (4) Sending a scheduling request: When it is necessary to send uplink data, the terminal apparatus waits for a time point of the scheduling request sending period, and sends a PUCCH at this time point of the scheduling request sending period.

[0089] Send PRACH:

[0090] (1) The terminal device itself may determine whether to send the PRACH, or send the PRACH based on the PDCCH trigger sent by the network device, or send the PRACH based on the Radio Resource Control (RRC) signaling trigger sent by the network device. The PRACH may be used for synchronization between a terminal device and a network device, inter-cell handover, or the like.

[0091] (2) The connection establishment process between the terminal device and the network device is a random access process, and the terminal device sends a PRACH in the random access process. The random access process specifically includes the following steps: The terminal device sends a random access preamble to the network device using PRACH. After receiving the random access preamble, the network device responds to the terminal device with a random access response (Random Access Response, RAR) using the PDSCH. Then, the terminal device sends message 3 in the random access process using PUSCH. Finally, the network device responds to the terminal device with a contention resolution message. In the random access process, the network device and the terminal device transmit messages in a basic transmission unit with a TTI of 1 ms.

[0092] In the LTE system and the LTE-A system, the power setting of each channel by the terminal device is as follows:

[0093] In the standards (or protocols) of the LTE system and the LTE-A system, each channel has a channel priority. The principle of channel prioritization for channels is to ensure that the important channel is sent first. It is determined in the standard that the power is preferably set for the uplink channel having a high channel priority, and then the power is set for the uplink channel having a low channel priority; and if more than one uplink channel has the same channel priority, power compression is performed for a plurality of uplink channels with the same ratio.

[0094] For example, the maximum transmit power of the terminal device is 100 parts (fractions) of power, the required power of the first uplink channel is 50 parts of power, the required power of the second uplink channel is 70 parts of power, and the required power of the third uplink channel is 30 parts of power.

[0095] The channel priorities are assumed to be: channel priority of the first uplink channel > channel priority of the second uplink channel = channel priority of the third uplink channel. The terminal device preferably sets the transmission power for the first uplink channel to 50 parts, and 100-50=50 parts of the power remains. Then, the terminal device sets the transmission powers for the second uplink channel and the third uplink channel. Since the second uplink channel and the third uplink channel have the same channel priority, A*(required power of the second uplink channel + required power of the third uplink channel) = 50, and by calculation it can be obtained that A=0, 5. Therefore, the terminal device sets the power to 0.5*70=35 parts for the second uplink channel, and sets the power to 0.5*30=15 parts for the third uplink channel.

[0096] For the case in which a PRACH and a different type of uplink channel (eg, PUSCH and/or PUCCH) are to be sent in the same subframe, the specifications in the LTE system and the LTE-A system standards in particular are as follows:

[0097] (1) FIG. 2 is a schematic representation of a power setting (adjustment) method. As shown in FIG. 2, if the required power of the PRACH plus the required power of the other type of uplink channel does not exceed the maximum allowable transmit power of the terminal device, the terminal device sends the PRACH using the required PRACH power as the transmit power of the PRACH, and sends the other type of uplink channel using the required the power of the uplink channel of another type as the transmission power of the uplink channel of another type.

[0098] (1) FIG. 3 is a schematic representation of a power setting method. As shown in FIG. 3, if the required power of the PRACH plus the required power of another type of uplink channel exceeds the maximum allowable transmit power of the terminal apparatus, the terminal apparatus preferably provides the transmit power of the PRACH. If there is power remaining after the PRACH transmit power is subtracted from the maximum allowable transmit power of the terminal device, the remaining power is set to a different type of uplink channel. With respect to the required power of the other type of uplink channel, the transmission power that is set for the other type of uplink channel is the power obtained after despreading.

[0099] It should be understood that in the embodiments of this application, the required power is the power that is obtained by the terminal device by calculation based on a set of parameters and that is used to send the channel when the maximum allowable transmit power of the terminal device or the current remaining available transmit power of the terminal device is not taken into account, and the parameter set includes at least one of the following parameters: a path loss value, an initially configured channel transmit power value, a power control adjustment status variable, a beam parameter (beam), and a channel transmission format. The transmit power is the actual power used by the terminal device to send the channel, or may be the power used by the terminal device to send the channel after power adjustment.

[0100] There are many types of services in the NR system of 5G mobile communication technology, and different types of services correspond to different service requirements. For example, a URLLC service or the like requires low latency and high reliability. If the NR system still follows the protocols of the LTE system and the LTE-A system, the URLLC service channel transmission fails, and the power setting of the terminal device is incorrect, which adversely affects the transmission quality of an important service.

[0101] In order to solve the above problem, an embodiment of this application provides an uplink transmission method. FIG. 4 is a schematic flowchart of a method 400 for uplink transmission according to an embodiment of this application. The uplink transmission method 400 is performed by the terminal device and includes the following steps:

[0102] S410. Setting by the terminal device of the first transmission power for the first uplink channel based on the channel priority of the first uplink channel and the channel priority of the first physical random access channel PRACH, wherein the first uplink channel includes at least one of the physical shared channel uplink PUSCH and the physical uplink control channel PUCCH, the first time domain resource on which the first uplink channel is located and the second time domain resource on which the first PRACH is located overlap, the channel priority of the first uplink channel is higher or is equal to the channel priority of the first PRACH, and the first transmit power is greater than 0.

[0103] S420. The terminal device sends the first uplink channel at the first transmission power.

[0104] It should be noted that the fact that the first time domain resource on which the first uplink channel is located and the second time domain resource on which the first PRACH is located overlap means that the first time domain resource and the second time domain resource overlap in the time domain partially or completely.

[0105] According to the uplink transmission method in this embodiment of this application, when the PUSCH time domain resource and/or the PUCCH time domain resource overlaps/overlaps the time domain resource of the first PRACH, the PUSCH priority and/or the PUCCH priority is/are set higher than or equal to the channel priority of the first PRACH, and the terminal device sets the first transmit power for the PUSCH and/or PUCCH based on this channel priority, so that compared with the current solution, the transmit power can be more preferably set for the PUSCH and/or PUCCH, and the power setting is more correct and more appropriate for the PUSCH and/or PUCCH, thereby improving the transmission quality of the service.

[0106] It should be understood that in this embodiment of this application, the first uplink channel may include one or more uplink channels, while the durations of the time domain resources on which the first uplink channels are located may be the same or may be different. For example, the first uplink channel may include a single symbol uplink channel, or may include a two symbol uplink channel, or may include a seven symbol uplink channel, or may include a uplink of 14 symbols. The first PRACH may include one or more PRACHs, and the first PRACH may be from the same system or may be from different systems, eg PRACH NR and/or PRACH LTE.

[0107] It should also be understood that in embodiments of the present application, the PUSCH may be a normal PUSCH or may be a short physical uplink shared channel (short PUSCH, sPUSCH), and the duration of the time domain resource on which the sPUSCH is located is from one character to one slot.

[0108] It should also be understood that in the embodiments of the present application, the PUCCH may be a normal PUCCH or may be a short physical uplink control channel (short PUCCH, sPUCCH), and the duration of the time domain resource on which the sPUCCH is located is from one symbol up to one slot.

[0109] FIG. 5 and FIG. 6 are corresponding schematic representations of the uplink transmission method in this embodiment of this application. In this embodiment of this application, when the channel priority of the first uplink channel is equal to the channel priority of the first PRACH, as shown in FIG. 5, if the sum of the required power of the first uplink channel and the required power of the first PRACH is less than or equal to the first available power value, the terminal device uses the required power of the first uplink channel as the first transmission power of the first uplink channel, and uses the required power of the first PRACH as the second transmit power of the first PRACH; and as shown in FIG. 6, if the sum of the required power of the first uplink channel and the required power of the first PRACH is greater than the first available power value, the terminal apparatus compresses the required power of the first uplink channel and the required power of the first PRACH with the same ratio, and accordingly uses the compressed required power of the first channel uplink and the compressed required power of the first PRACH as the first transmit power and the second transmit power.

[0110] FIG. 7 and FIG. 8 are corresponding schematic representations of the uplink transmission method in this embodiment of this application. In this embodiment of this application, when the channel priority of the first uplink channel is higher than the channel priority of the first PRACH, the terminal device preferably sets the first transmission power for the first uplink channel based on the first available power value. If the sum of the required power of the first uplink channel and the required power of the first PRACH is less than or equal to the first available power value, the terminal device uses the required power of the first uplink channel as the first transmit power of the first uplink channel, and uses the required power of the first PRACH in as the second transmit power of the first PRACH. If the sum of the required power of the first uplink channel and the required power of the first PRACH is greater than the first available power value, after the terminal device sets the first transmission power for the first uplink channel, as shown in FIG. 7, if there is remaining power based on the first available power value, the terminal device sets the second transmit power for the first PRACH, while the second transmit power is greater than 0. It can be understood that if there is remaining power based on the first available power value, but this power less than the required power of the first PRACH, the terminal device may alternatively stop sending the first PRACH. As shown in FIG. 8, if there is no remaining power based on the first available power value, the terminal device stops sending the first PRACH or sets the second transmit power to 0.

[0111] It should be understood that in embodiments of this application, the first available power value may be a transmit power that can be set by the terminal device for at least the first uplink channel. If power remains after the power is set for the first uplink channel, the first available power value may be the transmit power that can be set for the first uplink channel and the first PRACH. The first available power value may be dynamically determined by the terminal device based on the time domain resource overlap status of the channels, or may be determined by the terminal device based on the indication information or higher layer signaling message sent by the network device, or may be a preset threshold value. In this embodiment of the present application, this is not limited.

[0112] It should be understood that, in this embodiment of this application, that the first time domain resource on which the first uplink channel is located and the second time domain resource on which the first PRACH is located overlap means that the first time domain resource the region and the second time domain resource overlap fully or partially. It is understood that the duration of the first time domain resource and the duration of the second time domain resource may be the same or may be different.

[0113] In addition, it should be understood that when the terminal device needs to send only the first uplink channel and the first PRACH on the overlapping time domain resource, and does not need to send any other channel, the first available power value is the maximum allowable power transfer of the terminal device; and in addition to the first uplink channel and the first PRACH, when the terminal device further needs to send another channel on the overlapped time domain resource, the first available power value may be less than or equal to the terminal device's maximum transmit power.

[0114] Thus, the case this application focuses on is as follows: The uplink transmission method further includes: setting a second transmission power for the first PRACH by the terminal device based on the channel priority of the first uplink channel and the channel priority a first PRACH, wherein the sum of the first transmit power and the second transmit power is less than or equal to the maximum allowable transmit power of the terminal device, and the second transmit power is greater than 0; and sending by the terminal device the first PRACH with the second transmission power.

[0115] Another case on which this application focuses is as follows: When the sum of the required power of the first uplink channel and the required power of the first PRACH is greater than the first available power value because the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH, the second transmit power is less than the required power of the first PRACH.

[0116] In this embodiment of this application, when the sum of the required power of the first uplink channel and the required power of the first PRACH is greater than the first available power value, the sum of the first transmit power and the second transmit power is less than or equal to the first available power value. For example, when the first time domain resource on which the first uplink channel is located, the second time domain resource on which the first PRACH is located, and the time domain resource on which the PRACH having a higher channel priority is located overlap, the channel priorities in this case are as follows: the priority of the PRACH having the higher channel priority > the channel priority of the first uplink channel ≥ the channel priority of the first PRACH. In this case, the available transmit power of the terminal device is the first available power value, and the sum of the first transmit power and the second transmit power is less than the first available power value. For example, when the time domain resource on which the first uplink channel is located, the time domain resource on which the first PRACH is located, and the time domain resource on which the PRACH having a higher channel priority is located overlap, the channel priorities will be: a PRACH channel having a higher channel priority > channel priority of the first uplink channel ≥ channel priority of the first PRACH. In this case, the available transmit power of the terminal device is the first available power value plus the required power value of the PRACH having the higher channel priority, and the terminal device can choose whether to discard the first PRACH or despread the first PRACH. If the first PRACH is discarded, in the current transmission, the second transmit power is 0, and the sum of the first transmit power and the second transmit power may be less than or equal to the first available power value; or if the first PRACH is compressed, the sum of the first transmit power and the second transmit power in the current transmission is equal to the first available power value. It should be noted that the fact that the first time domain resource on which the first uplink channel is located, the second time domain resource on which the first PRACH is located, and the time domain resource on which the PRACH having the higher channel priority is located overlap means that the first time domain resource, the second time domain resource, and the time domain resource on which the PRACH having the higher channel priority is located overlap partially or completely in the time domain, or that the first time domain resource, the second time domain resource, and the time domain resource , on which the PRACH having the higher channel priority is located, have some overlap in the time domain.

[0117] In this embodiment of this application, when the sum of the required power of the first uplink channel and the required power of the first PRACH is greater than the first available power value, the sum of the first transmit power and the second transmit power is less than or equal to the first available power value. For example, when the first uplink channel includes the PUSCH and the PUCCH, the PUSCH is located in the first time domain resource #1, the PUCCH is located in the first time domain resource #2, the first time domain resource includes the first time domain resource #1, and the first time domain resource #2, wherein the first time domain resource #1 and the first time domain resource #2 may be the same or may be different. When the first time domain resource #1 on which the PUSCH is located, the first time domain resource #2 on which the PUCCH is located, and the second time domain resource on which the first PRACH is located overlap, the channel priorities in this case may be as follows: channel priority PUSCH=PUCCH channel priority ≥ first PRACH channel priority, or may be: PUCCH channel priority > PUSCH channel priority ≥ first PRACH channel priority, or may be: PUSCH channel priority > PUCCH channel priority ≥ first PRACH channel priority. In this case, the available transmit power of the terminal apparatus is the first available power value, the sum of the PUCCH transmit power and the PUSCH transmit power is the first transmit power, and the sum of the first transmit power and the second transmit power is less than the first available power value. For example, when the time domain resource on which the PUSCH is located, the time domain resource on which the PUCCH is located, and the time domain resource on which the first PRACH is located overlap, the channel priorities are assumed to be: PUCCH channel priority > PUSCH channel priority ≥ the channel priority of the first PRACH, in which case the available transmit power of the terminal device is the first value of the available power. When the required power of the first uplink channel is greater than or equal to the first available power value, the terminal device first sets the transmission power for PUCCH, and if there is power remaining after the PUCCH transmission power is subtracted from the first available power value, sets the transmission power for PUSCH ; or if no power remains after the PUCCH transmit power is subtracted from the first available power value, sets the transmit power to 0 for the PUSCH or discards the PUSCH. In addition, the terminal device discards the first PRACH. When the required power of the first uplink channel is less than the first available power value, the terminal device may choose whether to discard the first PRACH or despread the first PRACH. If the first PRACH is discarded, in the current transmission, the second transmit power is 0, and the sum of the first transmit power and the second transmit power may be less than or equal to the first available power value; or if the first PRACH is compressed, the sum of the first transmit power and the second transmit power in the current transmission is equal to the first available power value. In addition, it should be noted that the fact that the first time domain resource #1 on which the PUSCH is located, the first time domain resource #2 on which the PUCCH is located, and the second time domain resource on which the first PRACH is located overlap means that the first time domain resource #1, the first time domain resource #2, and the second time domain resource partially or completely overlap in the time domain, or that the first time domain resource #1, the first time domain resource #2, and the second time domain resource have some overlap in the time domain.

[0118] It should be understood that according to the uplink transmission method in this embodiment of this application, under the "specific condition", the channel priority of the first uplink channel (including PUCCH and/or PUSCH) is higher than or equal to the channel priority of the first PRACH, and under a condition other than "specific condition", the channel priority of the first uplink channel (including PUCCH and/or PUSCH) is lower than the channel priority of the first PRACH. For the sake of simplicity in the following description, the PUCCH included in the first uplink channel is briefly referred to as PUCCH, the PUSCH included in the first uplink channel is briefly referred to as PUSCH, and the first PRACH is briefly referred to as PRACH.

[0119] Optionally, the first uplink channel includes at least one of the following PUSCHs: PUSCH transmission without grant; retransmitted PUSCH; PUSCH corresponding to the first scheduling request, wherein the first scheduling request is used by the terminal device to request the first data transmission resource; PUSCH corresponding to the first logical channel; PUSCH, which carries a transport block of the first transport block size; PUSCH, which carries the transport block of the first code rate; PUSCH, which carries the transport block of the first modulation scheme; and PUSCH, which carries information about the first delay requirement, wherein the first delay requirement is less than or equal to the first time threshold. When the first uplink channel is at least one of the above PUSCHs, the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH.

[0120] When the PUSCH is a non-grant PUSCH transmission, the channel priority of the first uplink channel (including the PUSCH) is higher than or equal to the channel priority of the first PRACH. Specifically, the PUSCH in the existing solution is a scheduling-based PUSCH, while the non-provisioning PUSCH transmission is used in the 5G mobile communication technology standard. The non-grant transmission resource is preconfigured by the network device, and the non-grant PUSCH transmission may be used to transmit a service that requires high reliability and low delay, such as a URLLC service, or may be used for another type of service. Since it is highly likely that the PUSCH is used to transmit an important service, in this embodiment of this application, it can be predetermined that when the PUSCH is a non-grant PUSCH transmission, the PUSCH has a higher channel priority and the non-grant PUSCH transmission channel priority is greater than or equal to the priority PRACH channel.

[0121] When the PUSCH is a retransmitted PUSCH, the priority of the PUSCH is higher than or equal to the priority of the PRACH. Typically, in a communication system, the first transmission of data or transport block is referred to as an initial transmission, and the second or later transmission of data or transport block is referred to as a retransmission, also referred to as repeated transmission (retry) or retransmission.

[0122] This embodiment of the present application is applicable to the case in which the initial PUSCH transmission is a no-grant transmission and the PUSCH retransmission is also a no-grant transmission. Since a plurality of retransmissions can increase the probability of accurately transmitting information, grantless transmission supports retransmission to meet the high reliability requirement of some services (eg, URLLC services). When the PUSCH is a retransmitted PUSCH, it is highly likely that the PUSCH is used to carry an important service and the channel priority of the retransmitted PUSCH is higher than or equal to the priority of the PRACH.

[0123] This embodiment of the present application is also applicable to the case in which the initial PUSCH transmission is a non-grant transmission and the PUSCH retransmission is a scheduling-based transmission. This embodiment of the present application is also applicable to the case in which the initial PUSCH transmission is a scheduling-based transmission and the PUSCH retransmission is a non-grant transmission. This embodiment of the present application is also applicable to the case in which the initial PUSCH transmission is a scheduling-based transmission and the PUSCH retransmission is also a scheduling-based transmission. The specific form of retransmission is not limited in this embodiment of this application.

[0124] When the PUSCH is the PUSCH corresponding to the first scheduling request, the priority of the PUSCH is higher than or equal to the priority of the PRACH. The first scheduling request (SR) is used by the terminal device to request the first transmission resource. After first determining the first scheduling request, the terminal apparatus determines the PUSCH corresponding to the first scheduling request, wherein the PUSCH may be a non-grant PUSCH transmission or may be a scheduling-based PUSCH. The first scheduling request may be a scheduling request that is predefined or specified in higher layer signaling. The first scheduling request may respectively request at least one of a time domain resource corresponding to the first communication resource, a frequency domain resource corresponding to the first communication resource, and a priority corresponding to the first communication resource. The first communication resource may be a logical channel, a transmission channel, or a physical channel.

[0125] It should be understood that the time domain resource corresponding to the first data transmission resource may have some specific time domain resource duration, have some specific TTI duration, or have a specific transmission duration. In this embodiment of this application, the time domain resource unit may include any time duration unit such as a character, microsecond, millisecond, second, slot, or subframe. For example, the duration of the time domain resource may be 1 ms, 2 ms, 3 ms, 0.125 ms, 0.5 ms, 0.375 ms, 0.25 ms, 0.0625 ms, one symbol, two symbols, three symbols, four symbols, five characters, six characters, seven characters, 14 characters, 21 characters, or the like. The duration of the time domain resource may be the maximum duration of the time domain resource or the minimum duration of the time domain resource. The specific representation form of the time domain resource corresponding to the first communication resource is not limited in this embodiment of the present application.

[0126] It should be understood that the frequency domain resource corresponding to the first data transmission resource may have a specific subcarrier spacing or have a specific numerology. In this embodiment of the present application, the subcarrier spacing of the frequency domain resource corresponding to the first data transmission resource may include 15 kHz, 30 kHz, 60 kHz, 120 kHz, or the like. The subcarrier spacing in this document may be the maximum subcarrier spacing or the minimum subcarrier spacing. The specific representation form of the frequency domain resource corresponding to the first transmission resource is not limited in this embodiment of the present application.

[0127] It should be understood that the first data transmission resource in this embodiment of this application may be a specific logical channel, a specific physical channel, or a specific transmission channel. Definitions in related communication standards apply to a logical channel, a physical channel, or a transmission channel. For example, a logical channel is a channel used to provide a data service in a Medium Access Control (MAC) layer. The transmission channel is a channel determined based on various transmission formats, and access to a data transmission service is realized using a transmission channel. The bearer is an interface link between the MAC layer and the physical layer. At the physical layer, the required operations such as channel coding and interleaving are performed using a transmission channel. It should be noted that there is a mapping relationship between a transmission channel and a logical channel. After the data service is generated, the data service is first mapped to a logical channel, then mapped to a traffic channel from the logical channel, and then mapped to a physical channel from the traffic channel to send data. The physical channel is a channel in the physical layer and is a channel used to transmit data and/or control information over the air interface.

[0128] In this embodiment of this application, the terminal device sends the first scheduling request to the network device, the network device sends uplink grant information to the terminal device, the uplink grant information is used to instruct the terminal device to send a PUSCH, and the terminal device sends the PUSCH based on the uplink grant information sent by the network device. PUSCH is the PUSCH corresponding to the first scheduling request. It may be predetermined in a system or protocol that a particular type of scheduling request, which is predetermined or configured using higher layer signaling, is an important service scheduling request, so that the network device determines whether the received scheduling request is a specific scheduling request to determine whether it is whether the received scheduling request is an important service scheduling request. When the first scheduling request sent by the terminal device is a specific type of scheduling request, the PUSCH corresponding to the first scheduling request is considered to be used to transmit an important service, and the priority of the PUSCH corresponding to the first scheduling request is higher than or equal to the priority of the PRACH.

[0129] When the PUSCH is the PUSCH corresponding to the first logical channel (namely, a specific logical channel), the priority of the PUSCH is higher than or equal to the priority of the PRACH. In particular, the first logical channel may be a specific logical channel that is predefined or configured in the higher layer signaling. It may be predetermined in the system or protocol that the PUSCH corresponding to the logical channel is used to carry an important service, and the priority of the PUSCH corresponding to the first logical channel is higher than or equal to the priority of the PRACH.

[0130] When the first uplink channel (including PUSCH) is a PUSCH that carries a transport block of a first transport block size (namely, a specific size or a specific size range), the priority of the PUSCH is higher than or equal to the priority of the PRACH. It can be understood that the first transport block size herein may be some particular value, or may be some range, such as greater than or less than Y bits, where Y > 0, or in another example, less than or equal to Z bits, where Z > 0. In other words, the first uplink channel in this embodiment of this application includes a PUSCH that carries a transport block of a first transport block size, where the first transport block size is A bits (or A bytes) and A is positive integer; or a first uplink channel in this embodiment of this application, a PUSCH that carries a transport block of a first transport block size, where the smallest value of the first transport block size is B bits (or B bytes), and B is a positive integer; or the first uplink channel in this embodiment of this application includes a PUSCH that carries a transport block of a first transport block size, wherein the largest value of the first transport block size is C bits (or C bytes), and C is a positive integer; or the first uplink channel in this embodiment of this application includes a PUSCH that carries a transport block of a first transport block size, wherein the range of the first transport block size is P to Q bits (or P to Q bytes), and P and Q are positive integers. In a specific example, when the transport block size of some transport block carried on the PUSCH is 256 bits (which may alternatively be another number of X bits where X > 0), a PUSCH with that transport block size is considered to be used for carrying an important service, and the priority of the PUSCH is greater than or equal to the priority of the PRACH.

[0131] When the PUSCH is a PUSCH that carries a transport block of a first code rate (namely, a specific code rate, or a specific code rate range), the priority of the PUSCH is greater than or equal to the priority of the PRACH. It can be understood that the first code rate herein may be some particular value, or may be some range, such as greater than or equal to D, where D > 0, or in another example, less than or equal to E, where E > 0. In other words , the first uplink channel in this embodiment of this application includes a PUSCH that carries a transport block of a first code rate, where the first code rate is F and F is a positive number; or the first uplink channel in this embodiment of this application includes a PUSCH that carries a transport block of a first code rate, wherein the smallest value of the first code rate is G and G is a positive number; or the first uplink channel in this embodiment of this application includes a PUSCH that carries a transport block of a first code rate, wherein the largest value of the first code rate is H and H is a positive number; or the first uplink channel in this embodiment of this application includes a PUSCH that carries a transport block of a first code rate, wherein the range of the first code rate is I to J, and I and J are positive numbers. In a specific example, when the code rate of the transport block carried on the PUSCH is 1/6 (which may alternatively be a different code rate), the PUSCH at that code rate is considered to be used to carry an important service and the priority of the PUSCH is higher or equals the PRACH channel priority.

[0132] When the PUSCH is a PUSCH that carries a transport block of a first modulation scheme (namely, a specific modulation scheme, or a specific range of modulation schemes), the priority of the PUSCH is higher than or equal to the priority of the PRACH. It is understood that the first modulation scheme herein may be a particular modulation scheme, or may be a plurality of modulation schemes. In particular, for example, when the modulation scheme of the transport block carried in the PUSCH is Quadrature Phase Shift Keying (QPSK) [or may be another modulation scheme, such as Quadrature Amplitude Modulation-16 (Quadrature Amplitude Modulation, QAM) , 64QAM or 256QAM], the PUSCH of this modulation scheme is considered to be used to carry an important service, and the priority of the PUSCH is higher than or equal to the priority of the PRACH.

[0133] It should be understood that when the transport block carried on the PUSCH matches any one or more of the first transport block size, the first code rate, and the first modulation scheme, the priority of the PUSCH is greater than or equal to the priority of the PRACH. In a specific example, when the transport block size of the actual transport block carried on the PUSCH is 256 bits, the code rate is 1/6, and the modulation scheme is QPSK, the PUSCH channel priority is higher than or equal to the PRACH channel priority.

[0134] When the delay requirement of the information carried in the PUSCH is the first delay requirement and the first delay requirement is less than or equal to the first time threshold, the PUSCH priority is higher than or equal to the PRACH priority. In particular, the first time threshold may be predefined or may be configured using higher layer signaling in the system or protocol. The first PUSCH delay requirement is compared with the first time threshold, and if this first delay requirement is less than or equal to the first time threshold, the information carried in the PUSCH can be considered to be urgent service information and the priority of the PUSCH is greater than or equal to the PRACH channel priority; or if this first delay requirement exceeds the first time threshold, the information carried on the PUSCH can be considered to be information about a service that is not urgent, and the priority of the PUSCH is lower than the priority of the PRACH.

[0135] FIG. 9 is a schematic representation of the transmission of the URLLC service. For example, the URLLC service in modern 5G mobile communication technology is a type of service for which the transmission accuracy should be 1 to 10 ^-5 within 1 ms. Therefore, in terms of time only, the maximum time for PUSCH transmission is 1 ms. It can be understood that each time after the PUSCH is transmitted, less time remains for the URLLC service. For example, as shown in FIG. 9, the time for each PUSCH transmission is 0.2 ms, and assuming that the PUSCH is continuously transmitted three times without interruption, the delay requirement remaining after transmission of the first PUSCH is 0.8 ms, the delay requirement remaining after transmission of the second PUSCH, is 0.6 ms, and the delay requirement remaining after transmission of the third PUSCH is 0.4 ms. If the first time threshold is set to 0.5 ms, the channel priority of the first PUSCH and the channel priority of the second PUSCH are lower than the priority of the PRACH channel, and the channel priority of the third PUSCH is higher than or equal to the priority of the PRACH channel.

[0136] Optionally, the first uplink channel includes a PUCCH and/or PUSCH, and the PUCCH and/or PUSCH include/include at least one of the following uplink control information: ACK acknowledgment information; information corresponding to the second delay requirement, wherein the second delay requirement is less than or equal to the second time threshold; and a second scheduling request, wherein the second scheduling request is used by the terminal device to request a second communication resource.

[0137] When the PUCCH is a PUCCH that carries predefined uplink control information (Uplink Control Information, UCI), the priority of the PUCCH is higher than or equal to the priority of the PRACH. Alternatively, when the PUSCH is a PUSCH that carries a predefined UCI, the priority of the PUSCH is higher than or equal to the priority of the PRACH.

[0138] Optionally, the uplink control information may specifically be an ACK, for example, the uplink control information may specifically be a HARQ (ACK) after the M ^th PDSCH retransmission, where M is less than or equal to some preset threshold. Specifically, for example, when downlink data is retransmitted a plurality of times using the PDSCH, and the uplink control information corresponding to the retransmission is ACK, if the network device receives the ACK, the plurality of PDSCH retransmissions may be terminated in advance. Thus, downlink system resource consumption can be reduced and system efficiency can be improved. Therefore, a PUCCH carrying an ACK may be predetermined in a system or protocol to be an important PUCCH, or a PUSCH carrying an ACK may be predetermined in a system or protocol to be an important PUSCH. In addition, when the number of retransmissions is relatively small, after demodulating the ACK, the network device still has time to early stop the retransmission. When the number of retransmissions is relatively high or close to the maximum number of retransmissions, after demodulating the ACK, the network device has no processing time or need to abort the retransmission in advance because the retransmission is completed. Therefore, the threshold value M is input in the above example, and M is an integer greater than or equal to zero. It should be noted that the HARQ (ACK) after the 0 ^th PDSCH retransmission is the HARQ (ACK) after the initial PDSCH transmission.

[0139] Optionally, the uplink control information may specifically be information corresponding to the second delay requirement, and the second delay requirement is less than or equal to the second time threshold. In particular, the second time threshold may be predetermined or may be configured using higher layer signaling in the system or protocol. The second delay requirement, which corresponds to the uplink control information corresponding to the information carried on the PDSCH, is compared with the second time threshold, and if the second delay requirement is less than or equal to the second time threshold, it can be considered that the information carried on the PDSCH , is the urgent service information, and the priority of the PUCCH that carries the PDSCH information is higher than or equal to the priority of the PRACH, or the priority of the PUSCH that carries the PDSCH information is higher than or equal to the priority of the PRACH; or if the second delay requirement is greater than the second time threshold, it can be considered that the information carried on the PDSCH is service information that is not urgent, and the priority of the PUCCH that carries the PDSCH information is lower than the PRACH priority, or the priority the PUSCH that carries PDSCH information is higher than or equal to the PRACH priority.

[0140] Optionally, the uplink control information may specifically be a second scheduling request (namely, a specific scheduling request), and the second scheduling request is used by the terminal device to request a second data transmission resource. It may be predetermined in a system or protocol that a particular type of scheduling request, which is predetermined or configured using higher layer signaling, is an important service scheduling request, so that the network device determines whether the received scheduling request is a specific scheduling request to determine whether it is whether the received scheduling request is an important service scheduling request. When the second scheduling request sent by the terminal device using the PUCCH is a specific type of scheduling request, the priority of the PUCCH that carries the second scheduling request is considered to be higher than or equal to the priority of the PRACH.

[0141] Optionally, the first PRACH includes at least one of the following PRACHs: a PRACH in a serving cell of a secondary time alignment sTAG; and PRACH in the first format. In particular, when the PRACH is some specific PRACH, the channel priority of the first uplink channel (including PUSCH and/or PUCCH) is higher than or equal to the PRACH channel priority.

[0142] Optionally, when the PRACH is a PRACH in a serving cell of a secondary Time Alignment Group (sTAG), the channel priority of the first uplink channel is greater than or equal to the channel priority of the PRACH. Due to a factor such as lack of synchronization or the like, in some cases the PRACH needs to be sent to the sTAG, and the PUSCH or PUCCH needs to be sent to the Primary Time Alignment Group (pTAG) or another TAG. In the current power setting solution, the priority of the PRACH is higher and therefore the transmit power of the PUSCH and/or the transmit power of the PUCCH may be insufficient. In 5G mobile communication technology, it is more likely that PUSCH and/or PUCCH carry/carry more important information. Transmission of important information may fail if the power setting solution of 4G mobile communication technology is still used. Therefore, in this embodiment of the present application, it can be predetermined in the system or protocol of the standard that the PRACH transmission in the serving cell of the secondary time alignment group sTAG is delayed and the channel priority of the first uplink channel is higher than or equal to the PRACH channel priority.

[0143] Optionally, when the PRACH is the PRACH in the first format, the channel priority of the first uplink channel is higher than or equal to the PRACH channel priority. Specifically, the PRACH format includes format 1, format 2, format 3, and format 4. It may be predetermined in the system that PRACH in a particular first format (eg, format 1) of the above formats is not urgent. When the PRACH format is the first format, the channel priority of the first uplink channel is higher than or equal to the PRACH channel priority.

[0144] Optionally, when the duration of the second time domain resource is equal to the second time duration and/or the subcarrier spacing of the frequency domain resource on which the first PRACH is located is the second subcarrier spacing, the channel priority of the first uplink channel is greater than or equal to the channel priority of the PRACH. In particular, the following may be predetermined or may be configured using higher layer signaling in the protocol or system: the second frequency domain resource corresponding to the PRACH has some specific numerology, i.e. has some specific subcarrier spacing (eg, second subcarrier spacing), the channel priority of the first uplink channel is greater than or equal to the PRACH channel priority.

[0145] It should be understood that in this embodiment, the second time duration may be a value or a range. For example, the second time duration may specifically be two symbols, or may be less than or equal to seven symbols, or may be greater than or equal to S symbols and less than or equal to T symbols, where S and T are positive integers greater than or equal to 1. It should be noted that a time duration herein may be a symbol, slot, minislot, subframe, or frame. The second subcarrier spacing may be a value or a range. For example, the second subcarrier spacing may specifically be 60 kHz, or may be greater than or equal to 60 kHz, or may be greater than or equal to 30 kHz and less than or equal to 120 kHz.

[0146] Optionally, the uplink transmission method further includes: receiving the first information by the terminal device, wherein the first information is used to instruct the terminal device to send the first PRACH. When the first information is configured in higher layer signaling or is carried on a physical channel, the channel priority of the first uplink channel is higher than or equal to the PRACH channel priority.

[0147] In this embodiment of this application, the first information may be configured using RRC signaling or MAC signaling, that is, the PRACH is a PRACH initiated by an RRC parameter or a MAC parameter. The first information may alternatively be carried on the PDCCH, that is, the first information is the indication information (PDCCH order) carried on the PDCCH, and the PRACH is the PRACH triggered by the PDCCH order. In the above two cases, the PRACH is the PRACH initiated by the network device. The time interval from the time the PUSCH and/or PUCCH is initiated by the network device to the time the PUSCH and/or PUCCH is sent is typically less than or equal to the time interval from the time the PRACH is initiated by the network device to the time the PRACH is sent. Therefore, if the network device initiates PRACH first and then initiates PUSCH and/or PUCCH, it can be assumed that the network device considers, by default, that PUSCH and/or PUCCH are/are more urgent and require higher channel priorities. On the contrary, if the PRACH is initiated after the PUSCH and/or PUCCH is initiated, it should be taken into account that the priority of the PRACH is higher. The terminal device may determine the channel priority of the first uplink channel and the PRACH channel priority based on the trigger time. The terminal device may alternatively determine the channel priority of the first uplink channel and the PRACH channel priority based on whether the PRACH is some PRACH initiated by the network device.

[0148] Accordingly, the network device sends the first information, where the first information is used to instruct the terminal device to send the first PRACH, where the first information is configured in higher layer signaling or is carried on a physical channel, the second time domain resource on which the first PRACH is located , and the first time domain resource on which the first uplink channel is located overlap, the first uplink channel includes at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH, and the priority the channel of the first uplink channel is higher than or equal to the channel priority of the first PRACH; and the network device detects the first PRACH in the second time domain resource.

[0149] It should be understood that the first uplink channel in this case is the first uplink channel to be sent by the terminal device. The first uplink channel may be indicated by the network device or may be sent by the terminal device itself. The specific content of the first uplink channel in this document has been described above, and details are not given here again.

[0150] It should be understood that although the network device instructs the terminal device to send the first PRACH, since the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH, the terminal device may send the first PRACH with very low power, or the terminal device may stop sending the first PRACH. The network device discovers the first PRACH, but may not obtain the first PRACH through discovery.

[0151] In addition, it should be understood that since the terminal device further sends the first uplink channel, the network device can further detect the first uplink channel.

[0152] Optionally, the channel priority of the first uplink channel is higher than or equal to the priority of the PRACH when the uplink transmission method further includes the following cases: The terminal device receives the second information on the third time domain resource, wherein the second information is used, to instruct the terminal apparatus to send the first uplink channel on the first time domain resource, and the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH; or the terminal device receives the second information on the third time domain resource, the second information being used to instruct the terminal device to send the first uplink channel on the first time domain resource and the time interval from the start of the third time domain resource to the start of the first time domain resource less than or equal to the third time threshold.

[0153] Optionally, the terminal device may receive second information that is used to instruct the terminal device to send the first uplink channel (including PUSCH and/or PUCCH) in the first time domain resource. When the second information carries an indication of a bit status (for example, this bit status is used to support the priority of the first uplink channel, for example, when the bit status is 0, the terminal device can know that the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH, and when the bit status is 1, the terminal device can know that the channel priority of the first uplink channel is lower than the channel priority of the first PRACH), the terminal device can know that the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH. Alternatively, the terminal device may learn using the format of the second information (for example, the format of the second information is a specific format, namely the format of the Downlink Control Information (DCI)), for example, when the DCI format is format 1, the terminal device can know that the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH, and when the DCI format is another format, the terminal device can know that the channel priority of the first uplink channel is lower than the channel priority of the first PRACH), that the channel priority of the first the uplink channel is higher than or equal to the channel priority of the first PRACH. Alternatively, when the second information is a specific scrambled Radio Network Temporary Identifier (RNTI), the terminal device may know that the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH. For example, when the RNTI is the first RNTI, the terminal device may know that the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH, and when the RNTI is another RNTI, the terminal device may know that the channel priority of the first uplink channel is lower. channel priority of the first PRACH.

[0154] It should be understood that the network device may indicate, based on the importance of the information carried in the current scheduled PUSCH and/or PUCCH, whether the PUSCH priority and/or PUCCH priority is/are higher than the PRACH priority to ensure that that the PUSCH priority and/or PUCCH priority used for important service transmission is/is higher(s), and the PUSCH priority and/or PUCCH priority used for non-important service is/is lower(s) . It is assumed that the network device is aware of the importance of the information carried in each PUSCH and/or PUCCH.

[0155] Optionally, the second information may be uplink grant information and/or downlink grant information carried on the corresponding physical downlink control channel (Physical downlink Control CHannel, PDCCH).

[0156] Optionally, the terminal device receives the second information on the third time domain resource, wherein the time interval from the start of the third time domain resource to the start of the first time domain resource is less than or equal to the third time threshold, and the second information is used to instruct the terminal the device to send the first uplink channel on the first time domain resource. The third time threshold may be predefined or may be configured using higher layer signaling in the system or protocol. The terminal device compares the time interval from the start time of the third time domain resource to the start time of the first time domain resource with the third time threshold, and if the time interval is less than or equal to the third time threshold, it can be considered that the information carried in the first uplink channel , is the urgent service information. Therefore, the channel priority of the first uplink channel is higher than the PRACH channel priority.

[0157] In the existing LTE frequency division duplex (FDD) system, the time interval from the time of sending scheduling information (namely, the second information) to the time of sending PUSCH and/or PUCCH is four subframes. In the 5G mobile communication system, the time interval value is indicated using scheduling information, that is, the value can be any integer number of symbols greater than or equal to 0. For example, when the time interval from the sending time of the scheduling information to the sending time of the PUSCH and/or PUCCH is eight symbols, and the third time threshold is 14 symbols, the PUSCH priority and/or the PUCCH priority is higher than or equal to/equal to the PRACH priority; when the time interval from the time of sending the scheduling information to the time of sending the PUSCH and/or PUCCH is 28 symbols and the third time threshold is 14 symbols, the PUSCH priority and/or the PUCCH priority is higher than or equal to/equal to the PRACH priority.

[0158] Accordingly, the network device sends the second information on the third time domain resource, wherein the second information is used to instruct the terminal device to send the first uplink channel on the first time domain resource, and the channel priority of the first uplink channel is greater than or equal to the priority channel of the first PRACH; or the network device sends the second information on the third time domain resource, the second information being used to instruct the terminal device to send the first uplink channel on the first time domain resource and the time interval from the start of the third time domain resource to the start of the first time domain resource less than or equal to a third time threshold, wherein the first uplink channel includes at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH, a first time domain resource and a second time domain resource, on which the first PRACH is located overlap and the channel priority of the first uplink channel is greater than or equal to the channel priority of the first PRACH; and the network device detects the first uplink channel in the first time domain resource.

[0159] It should be understood that the first PRACH in this case is the first PRACH to be sent by the terminal device. The first PRACH may be indicated by the network device or may be sent by the terminal device itself. The specific content of the first PRACH in this document has been described above, and details are not provided here again.

[0160] It should be understood that although the terminal device plans to send the first PRACH because the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH, the terminal device may send the first PRACH with very low power, or the terminal device may stop sending the first PRACH.

[0161] The network device may further detect the first PRACH in addition to the first uplink channel, but may not acquire the first PRACH through discovery.

[0162] Optionally, the duration of the first time domain resource of the first uplink channel is equal to the first time duration and/or the subcarrier spacing of the frequency domain resource on which the first uplink channel is located is the first subcarrier spacing.

[0163] In particular, the following may be predefined or may be configured using higher layer signaling or may be notified using a physical channel in the system: When the duration of the first time domain resource corresponding to PUSCH and/or PUCCH is a specific time duration ( e.g., first time duration) or has a specific TTI and/or first frequency domain resource corresponding to PUSCH and/or PUCCH, has some specific numerology, i.e. has some specific subcarrier spacing (e.g., first subcarrier spacing), channel priority of the first uplink channel link is higher than or equal to the PRACH priority.

[0164] In this embodiment of this application, it may be predetermined in a system or protocol that the PUSCH and/or PUCCH that is/which is sent/sent on a particular time-frequency domain resource is used to carry an important service to ensure that the important PUSCH and/or an important PUCCH has/have higher channel priorities. For example, PUSCH and/or PUCCH transmitted(e) in a two-symbol time domain resource has/have higher channel priorities. In another example, PUSCH and/or PUCCH transmitted(e) in a 60 kHz frequency domain resource has/have higher channel priorities. In yet another example, PUSCH and/or PUCCH transmitted(e) in a two-symbol time domain resource and a 60 kHz frequency domain resource has/have higher channel priorities. It should be understood that in this embodiment of this application, the maximum time duration of the first time domain resource may be set to the first time duration, or the minimum time duration of the first time domain resource may be set to the first time duration, and the minimum subcarrier spacing of the first frequency domain resource may be set to the first subcarrier spacing, and the maximum subcarrier spacing of the first frequency domain resource may be set to the first subcarrier spacing.

[0165] It should be understood that in this embodiment, the first time duration may be a value or a range. For example, the first time duration may specifically be one symbol, or may be less than or equal to 14 symbols, or may be greater than or equal to E symbols and less than or equal to F symbols, where E and F are positive integers that are greater than or equal to 1. It should be noted that a time duration herein may be a symbol, slot, minislot, subframe, or frame. The first subcarrier spacing may be a value or a range. For example, the first subcarrier spacing may specifically be 60 kHz, or may be greater than or equal to 30 kHz, or may be greater than or equal to 30 kHz and less than or equal to 120 kHz.

[0166] Optionally, the first uplink channel may be the first uplink channel retransmitted a ^Kth time, where K is an integer greater than or equal to 1.

[0167] In particular, the following may be predefined or may be configured using higher layer signaling or may be signaled using a physical channel in a system or protocol: When PUSCH and/or PUCCH are/is predefined(s) PUSCH and/or PUCCH, eg PUSCH and/or PUCCH is/is PUSCH and/or PUCCH retransmitted(s) for the K-th time, the channel priority of the first uplink channel is higher than or equal to the PRACH channel priority. K is an integer greater than or equal to 1, and K may be a preset threshold value.

[0168] As mentioned above, sending a PUSCH and/or a PUCCH may support multiple retransmissions. The value of K may be predetermined or may be configured using higher layer signaling, or may be configured using a physical channel in a system or protocol. When the current number of PUSCH and/or PUCCH retransmissions is greater than or equal to K, it is considered that the PUSCH and/or PUCCH has been/have been retransmitted a plurality of times, and that the service carried on the PUSCH and/or PUCCH is critical and must be correctly transmitted and the channel priority of the first uplink channel is greater than or equal to the PRACH channel priority. When the current number of PUSCH and/or PUCCH retransmissions is less than K, it is considered that the PUSCH and/or PUCCH transmission may have just started and that there is still a possibility for PUSCH and/or PUCCH retransmissions, and the channel priority of the first uplink channel lower than the PRACH priority.

[0169] It should be understood that the first scheduling request, the first transmission resource, the first logical channel, the first transport block size, the first code rate, the first modulation scheme, the first delay requirement, the first time threshold, the second delay requirement, the second threshold time value, second scheduling request, second transmission resource, first format, third time threshold, first time duration, first subcarrier spacing, second time duration, second subcarrier spacing, K and the like in this description can be configured using higher signaling layer, or may be predefined, or may be communicated using a physical channel. In embodiments of the present application, this is not limited.

[0170] In addition, it should be understood that when the first uplink channel includes any one or more of the first uplink channels (including PUSCH and/or PUCCH) described in the embodiments of this application, or the first PRACH includes any one or more of the PRACHs described in the embodiments of this application, or the first uplink channel includes any one or more of the first uplink channels described in the embodiments of this application, and the first PRACH includes any one or more PRACHs described in the embodiments of this application, the channel priority of the first uplink channel is greater than or equal to the channel priority of the first PRACH.

[0171] The foregoing describes the uplink transmission method provided in the embodiments of this application, and the following describes the terminal device and network device that are provided in the embodiments of this application.

[0172] FIG. 10 is a schematic block diagram of a terminal device 1000 according to an embodiment of this application. As shown in FIG. 10, the terminal apparatus 1000 includes a processing unit 1010 configured to set a first transmit power for a first uplink channel based on a channel priority of the first uplink channel and a channel priority of the first physical random access channel PRACH, wherein the first uplink channel communication includes at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH, a first time domain resource on which the first uplink channel is located, and a second time domain resource on which the first PRACH overlap, the channel priority of the first uplink channel is greater than or equal to the channel priority of the first PRACH, and the first transmission power is greater than 0; and a sending module 1020, configured to send the first uplink channel with the first transmission power received by the processing module 1010.

[0173] When the PUSCH time domain resource and/or the PUCCH time domain resource overlaps/overlaps the time domain resource of the first PRACH, the PUSCH channel priority and/or the PUCCH channel priority is set/set to be higher than or equal to the first PRACH channel priority, and the terminal device in this embodiment of the present application sets the first transmit power for PUSCH and/or PUCCH based on this channel priority, so that compared with the existing solution, the transmit power can be more preferentially set for PUSCH and/or PUCCH and the power setting is more correct and more suitable for PUSCH and/or PUCCH, thereby improving the transmission quality of the service.

[0174] Optionally, in an embodiment, the first uplink channel includes at least one of the following PUSCHs: PUSCH transmission without grant; retransmitted PUSCH; PUSCH corresponding to the first scheduling request, wherein the first scheduling request is used by the terminal device to request the first data transmission resource; PUSCH corresponding to the first logical channel; PUSCH, which carries a transport block of the first transport block size; PUSCH, which carries the transport block of the first code rate; PUSCH, which carries the transport block of the first modulation scheme; and PUSCH, which carries information about the first delay requirement, wherein the first delay requirement is less than or equal to the first time threshold.

[0175] Optionally, in an embodiment, the first uplink channel includes a PUCCH and/or PUSCH, and the PUCCH and/or PUSCH include/include at least one of the following uplink control information: ACK acknowledgment information; information corresponding to the second delay requirement, wherein the second delay requirement is less than or equal to the second time threshold; and a second scheduling request, wherein the second scheduling request is used by the terminal device to request a second communication resource.

[0176] Optionally, in an embodiment, the first PRACH includes at least one of the following PRACHs: a PRACH in a serving cell of a secondary time alignment sTAG; and PRACH in the first format.

[0177] Optionally, in an embodiment, the terminal device further includes a receiving module 1030 configured to receive first information, wherein the first information is used to instruct the terminal device to send the first PRACH, and the first information is configured in higher layer signaling or carried over a physical channel.

[0178] Optionally, in an embodiment, the terminal device further includes a receiving module 1030 configured to receive second information on a third time domain resource, wherein the second information is used to instruct the terminal device to send a first uplink channel on the first resource time domain and the channel priority of the first uplink channel is greater than or equal to the channel priority of the first PRACH; or configured to receive the second information on the third time domain resource, wherein the second information is used to instruct the terminal device to send the first uplink channel on the first time domain resource, and the time interval from the start of the third time domain resource to the start of the first resource time domain is less than or equal to the third time threshold.

[0179] Optionally, in an embodiment, the duration of the first time domain resource is the first time duration and/or the subcarrier spacing of the frequency domain resource on which the first uplink channel is located is the first subcarrier spacing; and/or the duration of the second time domain resource is the second time duration and/or the subcarrier spacing of the frequency domain resource on which the first PRACH is located is the second subcarrier spacing; and/or the first uplink channel is the first uplink channel retransmitted K times, where K is an integer greater than or equal to 1.

[0180] Optionally, in an embodiment, the processing module 1010 is further configured to set the second transmit power for the first PRACH based on the channel priority of the first uplink channel and the channel priority of the first PRACH, wherein the sum of the first transmit power and the second transmit power is less than or equal to the maximum allowable transmission power of the terminal device, and the second transmission power is greater than 0; and the sending module 1020 is further configured to send the first PRACH with the second transmit power received by the processing module.

[0181] Optionally, in an embodiment, the second transmit power is less than the required power of the first PRACH.

[0182] Optionally, in an embodiment, the sum of the required power of the first uplink channel and the required power of the first PRACH is greater than the first available power value, the first available power value is less than or equal to the maximum transmit power, and the sum of the first transmit power and the second power transmission is less than or equal to the first available power value.

[0183] It should be noted that in this embodiment of this application, the processing module 1010 may be implemented by a processor, and the sending module 1020 and the receiving module 1030 may be implemented by a transceiver. As shown in FIG. 11, terminal device 1100 may include processor 1110, transceiver 1120, and memory 1130. Memory 1130 is configured to store code for controlling processor 1110 and transceiver 1120 to perform their respective functions.

[0184] In other words, terminal device 1100 may include a processor 1110, a transceiver 1120, and a memory 1130. Memory 1130 is configured to store an instruction, and processor 1110 and transceiver 1120 are configured to execute that instruction stored in memory 1130. Processor 1110 configured to set the first transmit power for the first uplink channel based on the channel priority of the first uplink channel and the channel priority of the first physical random access channel PRACH, wherein the first uplink channel includes at least one of the physical shared uplink channel PUSCH and the physical uplink control channel PUCCH, the first time domain resource on which the first uplink channel is located and the second time domain resource on which the first PRACH is located overlap, the channel priority of the first uplink channel is the th link is higher than or equal to the channel priority of the first PRACH, and the first transmit power is greater than 0; and the transceiver 1120 is configured to send the first uplink channel at the first transmit power received by the processor 1110.

[0185] The components of the terminal device 1100 may communicate with each other via an internal connection channel to send control signals and/or data.

[0186] The terminal device 1100 shown in FIG. 11 or terminal device 1000 shown in FIG. 10 can implement various processes in the above method embodiment. To avoid repetition, details are again omitted here.

[0187] FIG. 12 is a schematic block diagram of a network device 1200 according to an embodiment of this application. As shown in FIG. 12, the network device 1000 includes a sending module 1210 configured to send first information, the first information is used to instruct the terminal device to send the first PRACH, the first information is configured in higher layer signaling or is carried over a physical channel, the second resource time domain resource on which the first PRACH is located and the first time domain resource on which the first uplink channel is located overlap, the first uplink channel includes at least one of a physical uplink shared channel PUSCH and a physical channel uplink control PUCCH and the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH; and a processing module 1220, configured to detect the first PRACH in the second time domain resource.

[0188] The network device in this embodiment of this application instructs the terminal device to send the first PRACH, and when the PUSCH time domain resource and/or the PUCCH time domain resource overlaps/overlaps the first PRACH time domain resource, sets the PUSCH priority and/or the PUCCH priority higher or equal to the channel priority of the first PRACH, so that, compared with the existing solution, the terminal device can more preferentially set the transmission power for PUSCH and/or PUCCH, and the power setting is more correct and more appropriate for PUSCH and/or PUCCH, thereby improving service transmission quality.

[0189] It should be noted that in this embodiment of this application, the processing module 1220 may be implemented by a processor, and the sending module 1210 may be implemented by a transceiver. As shown in FIG. 13, network device 1300 may include processor 1310, transceiver 1320, and memory 1330. Memory 1330 is configured to store code for controlling processor 1310 and transceiver 1320 to perform their respective functions.

[0190] In other words, network device 1300 may include a processor 1310, a transceiver 1320, and a memory 1330. Memory 1330 is configured to store an instruction, and processor 1310 and transceiver 1320 are configured to execute that instruction stored in memory 1330. Transceiver 1320 configured to send first information, the first information being used to instruct the terminal device to send the first PRACH, the first information being configured in higher layer signaling or being carried on a physical channel, the second time domain resource on which the first PRACH is located, and the first resource time domain on which the first uplink channel is located overlap, the first uplink channel includes at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH, and the priority no channel of the first uplink channel is higher than or equal to the channel priority of the first PRACH; and processor 1310 is configured to detect the first PRACH in the second time domain resource.

[0191] Components of the network device 1300 can communicate with each other through an internal connection channel to send control signals and/or data.

[0192] The network device 1300 shown in FIG. 13 or network device 1200 shown in FIG. 12 can implement various processes in the above method embodiment. To avoid repetition, details are again omitted here.

[0193] An embodiment of this application further provides a network device. The network device has a structure that is similar to that of the network device 1200 shown in FIG. 12 and includes: a sending module configured to send second information on a third time domain resource, wherein the second information is used to instruct the terminal device to send a first uplink channel on the first time domain resource, and the channel priority of the first uplink channel the link is higher than or equal to the channel priority of the first PRACH; or configured to send the second information on the third time domain resource, wherein the second information is used to instruct the terminal device to send the first uplink channel on the first time domain resource and the time interval from the start of the third time domain resource to the start of the first time domain resource. less than or equal to the third time threshold, wherein the first uplink channel includes at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH, a first time domain resource, and a second time domain resource , on which the first PRACH is located, overlap and the channel priority of the first uplink channel is greater than or equal to the channel priority of the first PRACH; and a processing module configured to detect the first uplink channel in the first time domain resource.

[0194] The network device in this embodiment of this application instructs the terminal device to send the first uplink channel, and when the PUSCH time domain resource and/or the PUCCH time domain resource overlaps/overlaps the first PRACH time domain resource, the first uplink channel explicitly or is implicitly indicated as an important channel, and/or when the time interval from the time of sending the second information used for scheduling the first uplink channel to the time of sending the first uplink channel is less than some specific threshold value, the first uplink channel is implicitly indicated as having relatively high importance, and the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH, so that compared with the existing solution, the terminal device can more preferentially set the transmission power for the PUSCH and/or PUCCH, and the power setting is more correct and more appropriate for the PUSCH and/or PUCCH, thereby improving the transmission quality of the service.

[0195] Similarly, the structure of the network device may alternatively be similar to that of the network device 1300 shown in FIG. 13 and includes a processor, a transceiver, and a memory. The memory is configured to store a code to control the processor and the transceiver to perform the respective functions. The transceiver is configured to send the second information on the third time domain resource, wherein the second information is used to instruct the terminal device to send the first uplink channel on the first time domain resource, and the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH ; or configured to send the second information on the third time domain resource, the second information being used to instruct the terminal device to send the first uplink channel on the first time domain resource and the time interval from the start of the third time domain resource to the start of the first time domain resource. less than or equal to the third time threshold, wherein the first uplink channel includes at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH, a first time domain resource, and a second time domain resource , on which the first PRACH is located, overlap and the channel priority of the first uplink channel is greater than or equal to the channel priority of the first PRACH. The processor is configured to detect the first uplink channel in the first time domain resource.

[0196] The network device may implement various processes in the above embodiment of the method. To avoid repetition, details are again omitted here.

[0197] It should be understood that the processor mentioned in the embodiments of this application may be a central processing unit (Central Processing Unit, CPU) or may be other general purpose processor, digital signal processor (Digital Signal Processor, DSP), special purpose integrated circuit destination (Application-Specific Integrated Circuit, ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistorized logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor, or the processor may be any conventional processor or the like.

[0198] It should be understood that the memory referred to in the embodiments of this application may be volatile memory or non-volatile memory, or may include both volatile memory and non-volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or flash -memory. The volatile memory may be Random Access Memory (RAM) used as an external cache. Many forms of RAM can be used as an example, and not a limiting description, for example, static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM , SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), dynamic random access memory with synchronous link (Synchlink DRAM, SLDRAM) and Rambus Direct Access Dynamic Random Access Memory (Direct Rambus RAM, DR RAM).

[0199] It should be noted that when the processor is a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device, a discrete gate or transistorized logic device, or a discrete hardware component, the memory (storage module) is integrated into the processor.

[0200] It should be noted that the memory described herein includes, but is not limited to, any other appropriate type of memory.

[0201] An embodiment of this application further provides a computer-readable medium, wherein the computer-readable medium stores an instruction, and when the instruction is executed on the computer, the method executed by the terminal device in the above-described embodiment of the method is caused to be executed by the computer.

[0202] An embodiment of this application further provides a computer-readable medium, wherein the computer-readable medium stores an instruction, and when the instruction is executed on the computer, the method executed by the network device in the above-described embodiment of the method is caused to be executed by the computer.

[0203] An embodiment of this application further provides a computer program product including an instruction, wherein when the computer program product instruction is executed on the computer, the computer executes the method performed by the terminal device in the above-described method embodiment.

[0204] An embodiment of this application further provides a computer program product including an instruction, wherein when the computer program product instruction is executed on the computer, the computer executes the method performed by the network device in the above-described method embodiment.

[0205] All or some of the above embodiments may be implemented using software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, the embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When a computer instruction is downloaded and executed on a computer, the procedures or functions according to the embodiments of this application are generated in whole or in part. The computer may be a general purpose computer, a specialized computer, a network of computers, or other programmable devices. The computer instruction may be stored on a computer-readable medium or may be transferred from a computer-readable medium to another computer-readable medium. For example, a computer instruction may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center by wire (for example, using a coaxial cable, optical fiber, or Digital Subscriber Line). , DSL)) or wirelessly (for example, infrared, radio or microwave). Computer-readable media can be any available media that can be accessed by a computer, or a storage device such as a server or data center that combines one or more available media. Suitable media can be magnetic media (e.g. floppy disk, hard disk or magnetic disk), optical media (e.g. Digital Video Disc, DVD), semiconductor media (e.g. Solid State Disk, SSD) ) or the like.

[0206] It should be understood that the first, second, and various numeric designators in this specification are used to distinguish only to simplify the description, and are not intended to limit the scope of this application.

[0207] It should be understood that the term "and/or" in this description is only an associative relationship to describe the associated objects and indicates that three relationships can take place. For example, A and/or B can indicate the following three cases: Only A exists, both A and B exist, and only B exists. In addition, the "/" symbol in this description usually indicates an "or" relationship between associated objects.

[0208] It should be understood that the sequence numbers of the above processes do not indicate the sequence of execution in various embodiments of this application. The execution sequences of the processes should be determined in accordance with the functions and internal logic of the processes and should not be considered as any limitation on the processes for implementing embodiments according to this application.

[0209] One skilled in the art may be aware that the blocks and steps of the algorithm in the examples described with reference to the embodiments disclosed in this specification may be implemented using electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on the specific applications and the conditions of the design constraints of the technical solutions. A person skilled in the art can use various methods to implement the described functions for each particular application, but such an implementation should not be considered to be outside the scope of this application.

[0210] One skilled in the art will readily appreciate that the detailed operating process of the aforementioned system, apparatus, and unit should be referred to the corresponding process description in the aforementioned method embodiments, and such details are again omitted here for simplicity and brevity of description.

[0211] In several embodiments presented in this application, it should be understood that the disclosed system, device and method can be implemented in another way. For example, the device embodiment described is only an example. For example, the division into blocks is only a logical division of functions, but it may be a different division in the actual implementation. For example, many blocks or components may be combined or integrated into another system, or certain features may be ignored or not performed. In addition, the interconnections or direct communications or communications connections illustrated or described may be implemented using certain interfaces. Indirect links or communication connections between devices or units may be implemented in electronic form, mechanical form or in other form.

[0212] Blocks described as separate parts may or may not be physically separate, and parts shown as blocks may or may not be physical units, may be located in the same location, or may be distributed across multiple network blocks. Some or all of the blocks may be selected based on actual requirements in order to achieve the objectives of the decisions in the mentioned embodiments.

[0213] In addition, the functional blocks in the embodiments of this application may be integrated into one processing unit, or each of the units may exist physically separately, or two or more units are integrated into one unit.

[0214] When the functions are implemented in the form of a software functional block and sold or used as an independent product, the functions may be stored on a computer-readable storage medium. Based on this understanding, the substance of the technical solutions in this application, or a certain part that contributes to the prior art, or some of the technical solutions can be implemented in the form of a software product. The computer program product is stored on a storage medium and includes several instructions for instructing a computing device (which may be a personal computer, a server, a network device, or the like) to perform all or some of the steps of the methods described in the embodiments of this application. The above storage media includes: any media that can store program code, such as USB flash drive, removable hard disk, Read-Only Memory (ROM), Random Access Memory (RAM), magnetic disk or optical disc.

[0215] The above descriptions are merely specific implementations of the present application, but are not intended to limit the scope of protection of the present application. Any change or replacement readily detectable by a person skilled in the art within the technical scope disclosed in this application should/should fall within the scope of this application. Therefore, the scope of protection of this application is to be protected by the claims.

Claims (52)

1. An uplink transmission method, comprising: setting (S410) the first transmission power for the first uplink channel based on the channel priority of the first uplink channel, the channel priority of the first physical random access channel (PRACH), and the channel priority of the second PRACH, wherein the first uplink channel comprises at least one of a Physical Uplink Shared Channel (PUSCH) and a Physical Uplink Control Channel (PUCCH), a first time domain resource on which the first uplink channel is located, a second time domain resource on which the first PRACH is located, and a third the time domain resource on which the second PRACH is located overlap, the channel priority of the second PRACH is higher than the channel priority of the first uplink channel, the channel priority of the first uplink channel is higher than the channel priority of the first PRACH, and the first transmit power is greater than 0; and sending (S420) by the terminal apparatus a first uplink channel at a first transmission power. 2. The method of claim 1, wherein the first PRACH contains at least one of the following PRACHs: PRACH in the serving cell of the Secondary Time Alignment Group (sTAG). 3. The method according to claim 1 or 2, while the method further comprises: the terminal device discarding the first PRACH and setting the second transmit power to 0 for the first PRACH. 4. The method according to claim 1 or 2, wherein the method further comprises: setting, by the terminal device, a second transmit power for the first PRACH based on the channel priority of the first uplink channel and the channel priority of the first PRACH, wherein the sum of the first transmit power and the second transmit power is less than or equal to the maximum allowable transmit power of the terminal device, and the second transmit power is greater than 0 ; and the terminal device sending the first PRACH with the second transmit power. 5. The method of claim 4, wherein the second transmit power is less than the required power of the first PRACH. 6. The method of claim 4, wherein the sum of the required power of the first uplink channel and the required power of the first PRACH is greater than the first available power value, wherein the first available power value is less than or equal to the maximum allowable transmit power, and the sum of the first transmit power and the second transmit power is less than or equal to the first available power value. 7. The method of claim 6, wherein the first available power value is the terminal device's available transmit power minus the required power of the second PRACH. 8. The method of claim 1 or 2, wherein the first uplink channel comprises at least one of the following PUSCHs: PUSCH transmission without grant; retransmitted PUSCH; PUSCH corresponding to the first scheduling request, wherein the first scheduling request is used by the terminal device to request the first data transmission resource; PUSCH corresponding to the first logical channel; PUSCH, which carries a transport block of the first transport block size; PUSCH, which carries the transport block of the first code rate; PUSCH, which carries the transport block of the first modulation scheme; and PUSCH that carries information about the first delay requirement, wherein the first delay requirement is less than or equal to the first time threshold. 9. The method of claim 1 or 2, wherein at least one of the PUSCH and PUCCH comprises at least one of the following uplink control information: acknowledgment information (ACK); information corresponding to the second delay requirement, wherein the second delay requirement is less than or equal to the second time threshold; and a second scheduling request, wherein the second scheduling request is used by the terminal device to request a second communication resource. 10. Terminal device for communication, comprising: a processing module configured to set the first transmission power for the first uplink channel based on the channel priority of the first uplink channel, the channel priority of the first physical random access channel (PRACH), and the channel priority of the second PRACH, the first uplink channel comprising at least one of a Physical Uplink Shared Channel (PUSCH) and a Physical Uplink Control Channel (PUCCH), a first time domain resource on which the first uplink channel is located, a second time domain resource on which the first PRACH is located , and the third time domain resource on which the second PRACH is located overlap, the channel priority of the second PRACH is higher than the channel priority of the first uplink channel, the channel priority of the first uplink channel is higher than the channel priority of the first PRACH, and the first transmission power is greater than 0; and a sending module configured to send the first uplink channel with the first transmission power received by the processing module. 11. The terminal device of claim 10, wherein the first PRACH contains at least one of the following PRACHs: PRACH in the serving cell of the Secondary Time Alignment Group (sTAG). 12. The terminal device according to claim 10 or 11, wherein the processing module is further configured to: discarding the first PRACH and setting the second transmit power to 0 for the first PRACH. 13. The terminal device according to claim 10 or 11, wherein the processing module is further configured to set the second transmit power for the first PRACH based on the channel priority of the first uplink channel and the channel priority of the first PRACH, wherein the sum of the first transmit power and the second power transmission is less than or equal to the maximum allowable transmission power of the terminal device, and the second transmission power is greater than 0; and the sending module is further configured to send the first PRACH with the second transmit power received by the processing module. 14. The terminal device of claim 13, wherein the second transmit power is less than the required power of the first PRACH. 15. The terminal device according to claim 13, wherein the sum of the required power of the first uplink channel and the required power of the first PRACH is greater than the first available power value, wherein the first available power value is less than or equal to the maximum allowable transmit power, and the sum of the first transmit power and the second transmit power is less than or equal to the first available power value. 16. The terminal device of claim 15, wherein the first available power value is the available transmit power of the terminal device minus the required power of the second PRACH. 17. The terminal device according to claim 10 or 11, wherein the first uplink channel comprises at least one of the following PUSCHs: PUSCH transmission without grant; retransmitted PUSCH; PUSCH corresponding to the first scheduling request, wherein the first scheduling request is used by the terminal device to request the first data transmission resource; PUSCH corresponding to the first logical channel; PUSCH, which carries a transport block of the first transport block size; PUSCH, which carries the transport block of the first code rate; PUSCH, which carries the transport block of the first modulation scheme; and PUSCH that carries information about the first delay requirement, wherein the first delay requirement is less than or equal to the first time threshold. 18. The terminal device according to claim 10 or 11, wherein at least one of the PUSCH and PUCCH contains at least one of the following uplink control information: acknowledgment information (ACK); information corresponding to the second delay requirement, wherein the second delay requirement is less than or equal to the second time threshold; and a second scheduling request, wherein the second scheduling request is used by the terminal device to request a second communication resource. 19. Computer-readable media containing a computer program that, when executed by a computer, performs the method according to any one of paragraphs. 1-9.

Images