Uplink channel sending method, apparatus, device, and storage medium

Abstract

The present application relates to the technical field of communications, and discloses an uplink channel sending method, an apparatus, a device, and a storage medium. The method comprises: sending a first uplink channel, wherein the first uplink channel is related to a random access procedure, and the resource type of an uplink transmission resource corresponding to the first uplink channel corresponds to the type of a random access occasion (RO) where a first physical random access channel (PRACH) transmission in the random access procedure is performed.

Description

Uplink channel transmission method, apparatus, device and storage medium Technical Field

[0001] This application relates to the field of communication technology, and in particular to an uplink channel transmission method, apparatus, device, and storage medium. Background Technology

[0002] In related technologies, during a random access process, the Physical Random Access Channel (PRACH) transmission can be performed on either the conventional random access occasion (RACH Occasion, RO) or the additional RO.

[0003] However, there is no solution yet for how transmission resources should be used for other uplink transmissions during the random access process. Summary of the Invention

[0004] This application provides an uplink channel transmission method, apparatus, device, and storage medium. The technical solution is as follows:

[0005] On one hand, embodiments of this application provide an uplink channel transmission method, the method being executed by a terminal device, the method comprising:

[0006] A first uplink channel is transmitted. The first uplink channel is related to the random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0007] On the other hand, embodiments of this application provide a method for determining transmission power, the method being executed by a terminal device, the method comprising:

[0008] Determine the transmit power or transmit power parameters of the first uplink channel, which is related to the random access procedure.

[0009] On the other hand, embodiments of this application provide an uplink channel transmission method, the method being executed by a network device, the method comprising:

[0010] Send first control information, which is used to schedule a first uplink channel. The first uplink channel is related to the random access procedure, and the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0011] On the other hand, embodiments of this application provide a method for determining transmission power, the method being executed by a network device, the method comprising:

[0012] Send configuration parameters, which are used to determine the transmit power or transmit power parameters of the first uplink channel, which is related to the random access procedure.

[0013] On the other hand, embodiments of this application provide an uplink transmission resource determination apparatus, the apparatus comprising:

[0014] The transmitting module is used to transmit a first uplink channel, which is related to the random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0015] On the other hand, embodiments of this application provide a means for determining transmission power, the means comprising:

[0016] The determination module is used to determine the transmission power or transmission power parameters of the first uplink channel, which is related to the random access procedure.

[0017] On the other hand, embodiments of this application provide an uplink transmission resource determination apparatus, the apparatus comprising:

[0018] The transmitting module is used to transmit first control information, which is used to schedule a first uplink channel. The first uplink channel is related to the random access procedure, and the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0019] On the other hand, embodiments of this application provide a means for determining transmission power, the means comprising:

[0020] The transmitting module is used to transmit configuration parameters, which are used to determine the transmit power or transmit power parameters of the first uplink channel, which is related to the random access procedure.

[0021] On the other hand, embodiments of this application provide a terminal device, the terminal device comprising:

[0022] The transmitting module is used to transmit a first uplink channel, which is related to the random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the random access timing (RO) type of the first physical random access channel (PRACH) transmission in the random access procedure.

[0023] On the other hand, embodiments of this application provide a terminal device, the terminal device comprising:

[0024] The determination module is used to determine the transmission power or transmission power parameters of the first uplink channel, which is related to the random access procedure.

[0025] On the other hand, embodiments of this application provide a network device, the network device comprising:

[0026] The transmitting module is used to transmit first control information, which is used to schedule a first uplink channel. The first uplink channel is related to the random access procedure, and the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0027] On the other hand, embodiments of this application provide a network device, the network device comprising:

[0028] The transmitting module is used to transmit configuration parameters, which are used to determine the transmit power or transmit power parameters of the first uplink channel, which is related to the random access procedure.

[0029] On the other hand, embodiments of this application provide a terminal device, which includes: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the terminal device, the transceiver, or the processor is configured to load and execute the executable instructions to implement an uplink channel transmission method as described above.

[0030] On the other hand, embodiments of this application provide a terminal device, which includes: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the terminal device, the transceiver, or the processor is configured to load and execute the executable instructions to implement the method for determining transmission power as described above.

[0031] On the other hand, embodiments of this application provide a network device, which includes: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the network device, the transceiver, or the processor is configured to load and execute the executable instructions to implement an uplink channel transmission method as described above.

[0032] On the other hand, embodiments of this application provide a network device, which includes: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the network device, the transceiver, or the processor is configured to load and execute the executable instructions to implement a method for determining transmission power as described above.

[0033] On the other hand, embodiments of this application provide a chip, the chip including programmable logic circuitry and / or at least a program, which, when the chip is running on a terminal device, implements the uplink channel transmission method performed by the terminal device as described above.

[0034] On the other hand, embodiments of this application provide a chip, the chip including programmable logic circuitry and / or at least a program, which, when the chip is running on a terminal device, implements the method for determining transmission power as described above for the terminal device.

[0035] On the other hand, embodiments of this application provide a chip that includes programmable logic circuitry and / or at least a program, which, when running on a network device, implements the method for determining transmission power as described above.

[0036] On the other hand, embodiments of this application provide a computer-readable storage medium storing at least one program that is loaded and executed by a processor to implement the uplink channel transmission method performed by the terminal device described above.

[0037] On the other hand, embodiments of this application provide a computer-readable storage medium storing at least one program that is loaded and executed by a processor to implement the method for determining transmission power as described above for the terminal device.

[0038] On the other hand, embodiments of this application provide a computer-readable storage medium storing at least one program that is loaded and executed by a processor to implement the uplink channel transmission method performed by the network device described above.

[0039] On the other hand, embodiments of this application provide a computer-readable storage medium storing at least one program that is loaded and executed by a processor to implement the method for determining transmission power as described above for network devices.

[0040] On the other hand, embodiments of this application provide a computer program product, the computer program product including computer instructions, the computer instructions being stored in a computer-readable storage medium, a processor obtaining the computer instructions from the computer-readable storage medium, and a terminal device executing the computer instructions to implement the uplink channel transmission method as described above.

[0041] On the other hand, embodiments of this application provide a computer program product, the computer program product including computer instructions, the computer instructions being stored in a computer-readable storage medium, a processor retrieving the computer instructions from the computer-readable storage medium, and a terminal device executing the computer instructions to implement the method for determining transmission power as described above.

[0042] On the other hand, embodiments of this application provide a computer program product, the computer program product including computer instructions stored in a computer-readable storage medium, a processor obtaining the computer instructions from the computer-readable storage medium, and a network device executing the computer instructions to implement the uplink channel transmission method as described above.

[0043] On the other hand, embodiments of this application provide a computer program product, the computer program product including computer instructions, the computer instructions being stored in a computer-readable storage medium, a processor retrieving the computer instructions from the computer-readable storage medium, and a network device executing the computer instructions to implement the method for determining transmission power as described above.

[0044] On the other hand, embodiments of this application provide a computer program executed by the processor or transceiver of a terminal device to implement the uplink channel transmission method as described above.

[0045] On the other hand, embodiments of this application provide a computer program executed by the processor or transceiver of a terminal device to implement the method for determining transmission power as described above for the terminal device.

[0046] On the other hand, embodiments of this application provide a computer program executed by a processor or transceiver of a network device to implement the uplink channel transmission method as described above.

[0047] On the other hand, embodiments of this application provide a computer program executed by the processor or transceiver of a network device to implement the method for determining transmission power as described above for network device execution.

[0048] The technical solutions provided in this application embodiment may have the following beneficial effects:

[0049] Since the determination of the transmission power of the first uplink channel requires reference to the transmission power of the first PRACH, in this application, the resource type of the first uplink channel corresponds to the transmission resource type corresponding to the first PRACH. This ensures that the channel interference situation of the first uplink channel is consistent with that of the first PRACH, thereby making the transmission power of the first uplink channel determined based on the transmission power of the first PRACH more accurate. This guarantees the demodulation performance of the first uplink channel and avoids excessive interference from the uplink transmission of the terminal device to other downlink receptions. Attached Figure Description

[0050] Figure 1 illustrates a schematic diagram of the four-step random access process provided by the relevant technology;

[0051] Figure 2 illustrates a schematic diagram of the two-step random access process provided by the relevant technology;

[0052] Figure 3 shows a schematic diagram of the time-domain unit provided by the related technology;

[0053] Figure 4 shows a schematic diagram of the communication system provided in an embodiment of this application;

[0054] Figure 5 shows a flowchart of an uplink channel transmission method provided in an embodiment of this application;

[0055] Figure 6 shows a flowchart of an uplink channel transmission method provided in an embodiment of this application;

[0056] Figure 7 shows a schematic diagram of an uplink channel transmission method provided in an embodiment of this application;

[0057] Figure 8 shows a schematic diagram of an uplink channel transmission method provided in an embodiment of this application;

[0058] Figure 9 shows a schematic diagram of an uplink channel transmission method provided in an embodiment of this application;

[0059] Figure 10 shows a schematic diagram of an uplink channel transmission method provided in an embodiment of this application;

[0060] Figure 11 shows a schematic diagram of an uplink channel transmission method provided in an embodiment of this application;

[0061] Figure 12 shows a schematic diagram of an uplink channel transmission method provided in an embodiment of this application;

[0062] Figure 13 shows a schematic diagram of an uplink channel transmission method provided in an embodiment of this application;

[0063] Figure 14 shows a flowchart of an uplink channel transmission method provided in an embodiment of this application;

[0064] Figure 15 shows a flowchart of an uplink channel transmission method provided in an embodiment of this application;

[0065] Figure 16 shows a flowchart of an uplink channel transmission method provided in an embodiment of this application;

[0066] Figure 17 shows a flowchart of an uplink channel transmission method provided in an embodiment of this application;

[0067] Figure 18 shows a schematic diagram of an uplink channel transmission method provided in an embodiment of this application;

[0068] Figure 19 shows a schematic diagram of an uplink channel transmission method provided in an embodiment of this application;

[0069] Figure 20 shows a flowchart of a method for determining transmission power provided in an embodiment of this application;

[0070] Figure 21 shows a flowchart of a method for determining transmission power provided in an embodiment of this application;

[0071] Figure 22 shows a flowchart of a method for determining transmission power provided in an embodiment of this application;

[0072] Figure 23 shows a schematic diagram of a method for determining transmission power provided in an embodiment of this application;

[0073] Figure 24 shows a schematic diagram of a method for determining transmission power provided in an embodiment of this application;

[0074] Figure 25 shows a schematic diagram of a method for determining transmission power provided in an embodiment of this application;

[0075] Figure 26 shows a combined flowchart of an uplink channel transmission method and a transmission power determination method provided in an embodiment of this application;

[0076] Figure 27 shows a combined flowchart of an uplink channel transmission method and a transmission power determination method provided in an embodiment of this application;

[0077] Figure 28 shows a combined flowchart of an uplink channel transmission method and a transmission power determination method provided in an embodiment of this application;

[0078] Figure 29 shows a combined flowchart of an uplink channel transmission method and a transmission power determination method provided in an embodiment of this application;

[0079] Figure 30 shows a structural block diagram of a terminal device provided in an embodiment of this application;

[0080] Figure 31 shows a structural block diagram of a terminal device provided in an embodiment of this application;

[0081] Figure 32 shows a structural block diagram of a network device provided in an embodiment of this application;

[0082] Figure 33 shows a structural block diagram of a network device provided in an embodiment of this application;

[0083] Figure 34 shows a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0084] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings. Exemplary embodiments will be described in detail here, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. All other embodiments obtained by those skilled in the art without inventive effort in relation to the embodiments of this application are within the scope of protection of this application. The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit this disclosure. The singular forms “a,” “the,” and “the” used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word “if” as used herein may be interpreted as “when”, “when”, or “in response to determination”.

[0085] First, the relevant technologies involved in the embodiments of this application will be introduced:

[0086] Random access procedure

[0087] The random access procedure refers to the process from when a terminal device sends a random access preamble sequence to attempt to access a network device until a basic signaling connection is established between the terminal device and the network device. The random access procedure is one of the most basic requirements for any cellular communication system and is used to enable data communication between the terminal device and the network device.

[0088] In some embodiments, the terminal device obtains the Master Information Block (MIB) sent by the network device by searching the Synchronization Signal and Physical Broadcast Channel (SSB). Based on the MIB, the terminal device obtains the time-domain and frequency-domain resources of the Control Resource Set (CORESET). The terminal device can detect the Downlink Control Information (DCI) of the System Information Block (SIB) on the CORESET and receive SIB1 on the time-frequency resources indicated by the DCI. In this way, it can receive information such as the Initial Uplink Bandwidth Part (Initial UL BWP), Initial Downlink Bandwidth Part (Initial DL BWP), Preamble, and RACH Occasion (RO) indicated in SIB1. According to SIB1, the terminal device transmits the Physical Random Access Channel (PRACH) carrying the preamble in the RO resource associated with the SSB.

[0089] In some embodiments, the random access procedure includes: four-step random access and two-step random access.

[0090] • Four-step random access:

[0091] Figure 1 illustrates the four steps of a contention-based random access procedure:

[0092] (1) The terminal device sends message 1 (Msg1) to the network device: random access preamble.

[0093] The terminal device sends a random access preamble sequence to the network device, which uses this sequence to estimate the terminal device's transmission delay in order to achieve uplink synchronization.

[0094] (2) The network device sends message 2 (Msg2) to the terminal device: Random Access Response (RAR).

[0095] Based on the transmission delay estimated in the first step above, the network device sends a timing advance command to adjust the transmission time of the terminal devices. Message 2 is organized by the network device's Media Access Control (MAC) layer and carried by the Physical Downlink Shared Channel (PDSCH). One message 2 can respond to random access requests from multiple terminal devices simultaneously.

[0096] Network devices schedule message 2 using the Physical Downlink Control Channel (PDCCH) and perform addressing (also known as scrambling) using either the Cell Radio-Network Temporary Identifier (C-RNTI) or the Random Access-Network Temporary Identifier (RA-RNTI). The RA-RNTI is determined by the time-frequency resources of the PRACH carrying message 1. Message 2 contains uplink transmission timing advance and allocates uplink resources and a temporary C-RNTI for message 3.

[0097] (3) The terminal device sends message 3 (Msg3) to the network device: the first scheduled transmission.

[0098] After receiving message 2, the terminal device transmits message 3 on the allocated uplink resources and sends the User Equipment Identifier (UE ID) to the network device through the Physical Uplink Share Channel (PUSCH).

[0099] Optionally, message 3 includes a Common Control Channel (CCCH) Service Data Unit (SDU) for message 4 to carry a contention resolution identifier.

[0100] (4) The network device sends message 4 (Msg4) to the terminal device: contention resolution message.

[0101] Contention resolution messages sent by network devices to end devices on the PDSCH.

[0102] • Two-step random access:

[0103] In a contention-based random access process, the four-step random access procedure can be merged into a two-step random access procedure. Referring to Figure 2, the merged procedure includes message A and message B, and the relevant steps include:

[0104] (1) The terminal device sends message A to the network device.

[0105] Optionally, message A includes the contents of messages 1 and 3 above, that is, message A includes: a random access preamble sequence and a UE ID, and the UE ID can be at least one of: C-RNTI, temporary C-RNTI, and RA-RNTI.

[0106] (2) After receiving message A from the terminal device, the network device sends message B to the terminal device.

[0107] Optionally, message B includes the contents of messages 2 and 4 above, that is, message B includes: random access response and contention resolution information.

[0108] Subband non-overlapping full duplex (SBFD)

[0109] To overcome the problems of weak uplink coverage, high uplink latency, and insufficient uplink capacity caused by limited uplink (UL) resource allocation in Time Division Duplexing (TDD) technology, SBFD technology was proposed. SBFD technology refers to the ability to simultaneously transmit and receive data on different subbands within the same subframe, time slot, or symbol. SBFD technology is primarily used on the network equipment side, while the user equipment (UE) side maintains its current state, meaning that data is only transmitted or only received within the same subframe / time slot / symbol. SBFD technology can also be called Cross Division Duplex (XDD) technology.

[0110] For example, as shown in Figure 3, the SBFD technology configures a portion of the frequency domain resources corresponding to a downlink (DL) time domain unit as an uplink subband. As shown in part (a) of Figure 3, the middle subband of the frequency domain resources corresponding to a downlink time domain unit is configured as an uplink subband, or, as shown in part (b) of Figure 3, the upper portion of the frequency domain resources corresponding to a downlink time domain unit is configured as an uplink subband.

[0111] In related technologies, the protocol stipulates that RACH transmission is supported on the SBFD symbol in Radio Resource Control (RRC) IDLE / INACTIVE / CONNECTED states, and supports two RACH configuration options:

[0112] Option 1: For SBFD-aware UEs and legacy UEs, reuse the same RACH configuration, for example, both use the RO configured in rach-ConfigCommon;

[0113] Option 2: Two separate RACH configurations, one legacy RACH configuration and one additional RACH configuration.

[0114] For random access operation for SBFD-aware UEs in RRC CONNECTED state, at least consider the following options:

[0115] -Option 1:Use one single RACH configuration with possible enhancement;

[0116] -Option 2:Use two separate RACH configurations,including one legacy RACH configuration and one additional RACH configuration.

[0117] Regardless of the RACH configuration option, there are two types of ROs for terminals that support SBFD: legacy RO and additional RO.

[0118] A traditional RO is an RO that is available under traditional rules, such as the RO in the uplink symbol (UL symbol) and flexible symbol in option 1.

[0119] The definition of additional RO differs slightly for the two RACH configuration options: For RACH configuration option 1, additional RO includes the RO in the SBFD symbol configured for downlink and the RO in the SBFD symbol configured for downlink and flexible across TDD; for RACH configuration option 2, additional RO includes the RO in the additional RACH configuration.

[0120] For RAN1 discussion purpose,'additional-ROs' is defined as the following:

[0121] -For RACH configuration Option 1, additional-ROs include the ROs in SBFD symbols configured as downlink by tdd-UL-DL-ConfigurationCommon, and the ROs across SBFD symbols configured as downlink and SBFD symbols configured as flexible by tdd-UL-DL-ConfigurationCommon.

[0122] -For RACH configuration Option 2,additional-ROs are the ROs configured by the additional RACH configuration.

[0123] PRACH power control

[0124] The PRACH power control adopts an open-loop power control mechanism. The UE sets the PRACH transmission power based on factors such as the expected received power configured by the network equipment and the path loss measured by the downlink reference signal.

[0125] The terminal determines the PRACH transmit power using the following formula: P PRACH，b，f，c (i)=min{P CMAX，f，c (i), P PRACH，target，f，c +PL b，f，c [dBm]

[0126] Where f is the carrier; c is the serving cell; b is the BWP; i is the PRACH transmission opportunity; P CMAX，f，c (i) is the maximum output power configured by the network device for the UE; P PRACH，target，f，c For the leading target power; PL b，f，c This refers to path loss.

[0127] The formula for calculating the target received power (PREAMBLE_RECEIVED_TARGET_POWER) is shown below.

[0128] PREAMBLE_RECEIVED_TARGET_POWER=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP

[0129] The target power level (preambleReceivedTargetPower, or simply power level) is configured via RRC signaling; the preamble increment (DELTA_PREAMBLE) is determined based on at least one of the following: the random access preamble format, the subcarrier spacing used, and a fixed value agreed upon by the protocol; the power ramp counter (PREAMBLE_POWER_RAMPING_COUNTER), also known as the preamble power ramp count, is determined based on the power ramp counter, initialized to 1 at the beginning of each random access procedure, and incremented by 1 with each retransmission; the power ramp step size (PREAMBLE_POWER_RAMPING_STEP), also known as the preamble power ramp step size, is used to indicate the power ramp step size.

[0130] When the number of PRACH transmissions reaches the preambleTransMax parameter configured in the RRC (the maximum number of preamble transmissions, also known as the maximum number of random access preamble transmissions), a random access problem is indicated to the higher layers, or the random access process is considered unsuccessful.

[0131] In other words, at the start of the random access procedure, the MAC (Medium Access Control) layer initializes the power ramp-up counter and the random access preamble transmission counter to 1. If the UE sends a PRACH but does not receive a RAR response from the network or fails to receive a conflict resolution message, the random access preamble transmission counter is incremented by 1 (indicating that the UE needs to retransmit the PRACH). If the random access preamble transmission counter is greater than 1, the power ramp-up counter is incremented by 1. Thus, when setting the power, since PREAMBLE_RECEIVED_TARGET_POWER = preambleReceivedTargetPower + DELTA_PREAMBLE + (PREAMBLE_POWER_RAMPING_COUNTER – 1) × PREAMBLE_POWER_RAMPING_STEP, the power ramp-up for PRACH retransmission and the counting of PRACH transmissions are naturally achieved.

[0132] Regardless of the RACH configuration option, SBFD supports configuring power parameters separately for traditional RO and additional RO, at least supporting separate configuration of preambleReceivedTargetPower. Other parameters, such as powerRampingStep and preambleTransMax, are pending further study (FFS).

[0133] Msg3 PUSCH power control

[0134] The overall design concept of Msg3 PUSCH power control is to adjust the transmit power based on PRACH:

[0135] 1) The open-loop power control parameters of Msg3 PUSCH are based on the open-loop power control parameters of PRACH, preambleReceivedTargetPower, with adjustments made to msg3-DeltaPreamble.

[0136] 2) The closed-loop power control parameters of Msg3 PUSCH are adjusted based on the total power ramp-up of multiple transmissions of PRACH, with δmsg2,b,f,c (δmsg2,b,f,c is the TPC value contained in RAR).

[0137] The terminal determines the transmission power of PUSCH using the following formula 1:

[0138] Where f is the carrier; c is the serving cell; b is the BWP, i represents the transmission timing, j represents the configuration parameter index, and q is the base station. d 1 represents the reference signal index, and l represents the PUSCH power control adjustment status index.

[0139] P CMAX,f,c (i) represents the maximum allowed transmit power of the terminal in subframe i.

[0140] P O_PUSCH,b,f,c (j) indicates the nominal power offset of the PUSCH, broadcast by system message or RRC signaling.

[0141] This represents the gain related to the number of allocated resource blocks and the subcarrier spacing.

[0142] α b,f,c (j)·PL b,f,c (q d ) represents the path loss compensation term, where α b,f,c (j) is the path loss compensation factor, PL b,f,c (q d ) is path loss.

[0143] Δ TF,b,f,c (i) represents the adjustment factor associated with the modulation and coding scheme (MCS).

[0144] f b,f,c (i,l) represents dynamic power adjustment based on Transmit Power Control (TPC) commands. The TPC command is used to indicate the amount of power increased or decreased by the terminal via the TPC field in Downlink Control Information (DCI).

[0145] P O_PUSCH,b,f,c (j) is determined by the following formula 2: P O_PUSCH,b,f,c (j)=P O_NOMINAL_PUSCH,f,c (j)+P O_UE_PUSCH,b,f,c (j)

[0146] Among them, P O_NOMINAL_PUSCH,f,c (j) is a public configuration, P O_UE_PUSCH,b,f,c (j) is a UE-specific configuration.

[0147] For the initial / retransmission of Msg3 PUSCH in RAR uplink scheduling, j=0, P O_UE_PUSCH,b,f,c (0) = 0. Where, P O_NOMINAL_PUSCH,f,c (0)=PO_PRE +Δ PREAMBLE_Msg3 P O_PRE Configured by the parameter preambleReceivedTargetPower, Δ PREAMBLE_Msg3 Configured by the parameter msg3-DeltaPreamble.

[0148] The parameter preambleReceivedTargetPower(P) O_PRE ) and parameter msg3-DeltaPreamble(Δ PREAMBLE_Msg3 Provided by a higher layer; if the parameter msg3-DeltaPreamble is not provided, then for carrier f of serving cell c, Δ PREAMBLE_Msg3 =0dB. (where the parameter preamble ReceivedTargetPower(forP O_PRE )and msg3-DeltaPreamble(forΔ PREAMBLE_Msg3 )are provided by higher layers,orΔ PREAMBLE_Msg3 =0dB if msg3-DeltaPreamble is not provided,for carrier f of serving cell c.)

[0149] For α b,f,c (j), when j=0, if the parameter msg3-Alpha is provided, then α b,f,c (0) equals the value of parameter msg3-Alpha; otherwise, α b,f,c (0) = 1. (For j = 0, α b,f,c (0)is a value of msg3-Alpha,when provided;otherwise,α b,f,c (0) = 1.)

[0150] If the UE receives a random access response message in response to a PRACH transmission or a MsgA transmission on active UL BWP b of carrier f of serving cell c, then f b,f,c(0, l) is determined by the following formula 3: f b,f,c (0,l)=ΔP rampup,b,f,c +δmsg2,b,f,c

[0151] Where, l = 0; and, on the active uplink BWP b of carrier f of serving cell c, δmsg2,b,f,c is a TPC command value indicated in a random access response grant of the random access response message corresponding to a PRACH transmission according to Type-1 random access procedure, or in a random access response grant of the random access response message corresponding to a MsgA transmission according to Type-2 random access procedure with RAR message(s) for fallbackRAR, on active UL BWP b of carrier f of serving cell c);

[0152] ΔP rampup,b,f,c Determined by the following formula 4:

[0153] Here, ΔPrampup_requested,b,f,c is provided by higher layers and corresponds to the total power ramp-up requested by higher layers for carrier f in the serving cell c, from the first to the last random access preamble.

[0154] This is the bandwidth allocated for PUSCH resources, expressed as the number of resource blocks in the first PUSCH transmission on the effective uplink BWP b of carrier f in serving cell c. is the bandwidth of the PUSCH resource assignment expressed in number of resource blocks for the first PUSCH transmission on active UL BWP b of carrier f of serving cell c.)

[0155] Δ TF,b,f,c (0) is the power adjustment of the first PUSCH transmission on the effective uplink BWP b of carrier f in serving cell c. (Δ) TF,b,f,c (0)is the power adjustment of first PUSCH transmission on active UL BWP b of carrier f of serving cell c.)

[0156] The TPC command values ​​used for PUSCH are shown in Table 1 below:

[0157] Table 1

[0158] PRACH resource selection

[0159] Regardless of the RACH configuration option, both traditional RO and supplementary RO types are supported. Therefore, for both RACH initial transmission and retransmission, the question arises of how to choose between the two RO types:

[0160] For the initial PRACH transmission, SBFD supports selecting between traditional RO and additional RO based on certain rules / conditions, which are still in the state of FFS.

[0161] For PRACH retransmission, SBFD supports allowing the terminal to switch to traditional RO to continue RACH attempts after a certain number of PRACH attempts if the initial transmission selects additional RO; if the initial transmission selects traditional RO, then whether RO type switching is allowed is in the FFS state.

[0162] Figure 4 shows a schematic diagram of a communication system provided in an exemplary embodiment of this application. The communication system includes a terminal device 110 and a network device 120.

[0163] The terminal device 110 in this application embodiment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user apparatus. This terminal includes, but is not limited to: handheld devices, wearable devices, in-vehicle devices, and IoT devices, such as: mobile phones, tablets, e-readers, laptops, desktop computers, televisions, game consoles, mobile internet devices (MID), augmented reality (AR) terminals, virtual reality (VR) terminals, mixed reality (MR) terminals, wearable devices, controllers, electronic tags, controllers, wireless terminals in industrial control, self-driving, remote medical, smart grid, transportation safety, smart city, smart home, remote medical surgery, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, and wireless local loops. Loop (WLL) stations, personal digital assistants (PDAs), set-top boxes (STBs), customer premises equipment (CPEs), etc.

[0164] The network device 120 in this embodiment provides wireless communication functionality. This network device 120 includes, but is not limited to: an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a Home Evolved Node B (or Home Node B, HNB), a Baseband Unit (BBU), an Access Point (AP) in a Wi-Fi system, a wireless relay node, a wireless backhaul node, a Transmission Point (TP), or a Transmission and Reception Point (TRP), etc. It can also be used for next-generation Node B (Next Generation Node) systems in 5G mobile communication systems. B, gNB) or transmission point (TRP or TP), or, in a 5G system, one or a group of antenna panels (including multiple antenna panels) of a base station, or, network nodes constituting a gNB or transmission point, such as baseband unit (BBU) or distributed unit (DU), or base stations in Beyond Fifth Generation (B5G) mobile communication systems or 6th Generation (6G) mobile communication systems, or core network (CN), fronthaul, backhaul, radio access network (RAN), network slicing, etc., or serving cell, primary cell (PCell), primary secondary cell (PSCell), special cell (SpCell), secondary cell (SCell), neighboring cell, etc. of terminal equipment.

[0165] Terminal device 110 and network device 120 communicate with each other via some air interface technology. For example, there are two communication scenarios between terminal device 110 and network device 120: uplink communication scenario and downlink communication scenario. Uplink communication refers to terminal device 110 sending signals to network device 120; downlink communication refers to network device 120 sending signals to terminal device 110.

[0166] The technical solutions provided in the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Advanced Long Term Evolution (LTE-A) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5G mobile communication systems, NR systems, evolution systems of NR systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, Terrestrial Networks (TN) systems, Non-Terrestrial Networks (NTN) systems, and Wireless Local Area Networks (WLANs). Networks (WLAN), Wi-Fi, cellular IoT systems, cellular passive IoT systems, and can also be applied to subsequent evolution systems of 5G NR systems, as well as B5G, 6G and subsequent evolution systems.

[0167] In some embodiments of this application, "NR" may also be referred to as a 5G NR system or a 5G system. The 5G mobile communication system may include Non-Standalone (NSA) and / or Standalone (SA) networking. The technical solutions provided in the embodiments of this application can also be applied to Machine-Type Communication (MTC), Long Term Evolution-Machine (LTE-M) technology, Device-to-Device (D2D) networks, Machine-to-Machine (M2M) networks, Internet of Things (IoT) networks, or other networks. For example, an IoT network may include a vehicle-to-everything (V2X) network. In this context, the communication methods in the vehicle-to-everything (V2X) system are collectively referred to as vehicle to other devices (V2X, where X can represent anything). For example, V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (V2P) communication, or vehicle to network (V2N) communication, etc.

[0168] It should be understood that in the description of the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between them, or a relationship of instruction and being instructed, configuration and being configured, etc. In the embodiments of this application, "predefined" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), and this application does not limit the specific implementation method. For example, predefined can refer to what is defined in a protocol. In the embodiments of this application, "protocol" can refer to standard protocols in the field of communication, such as LTE protocol, NR protocol, Internet of Things protocol, and related protocols applied to future communication systems, and this application does not limit it.

[0169] Based on the above description of the relevant technologies, it can be concluded that:

[0170] 1) The transmit power of Msg3 PUSCH is determined based on the transmit power of PRACH;

[0171] 2) During a random access process, PRACH transmissions can be selected on either a traditional RO or an additional RO;

[0172] 3) Supports configuring power control parameters for PRACH transmitted on traditional RO and additional RO respectively. At least the configuration of preambleReceivedTargetPower is supported. Other parameters such as powerRampingStep and preambleTransMax are in FFS state.

[0173] In the technical solutions provided by related technologies, it is uncertain whether the symbol type corresponding to Msg3 PUSCH should be consistent with the RO type corresponding to PRACH transmission. To solve this problem, this application proposes an uplink channel transmission method. This method ensures that the symbol type corresponding to Msg3 PUSCH is consistent with the RO type corresponding to PRACH transmission, guaranteeing that the channel interference situation of Msg3 PUSCH is consistent with that of the first PRACH. This, in turn, makes the transmission power of Msg3PUSCH determined based on the transmission power of the first PRACH more accurate.

[0174] Figure 5 illustrates a flowchart of an uplink channel transmission method provided in an exemplary embodiment of this application. The method is executed by a terminal device and includes:

[0175] Step 220: The terminal device sends the first uplink channel. The first uplink channel is related to the random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0176] In some embodiments, the random access procedure includes the four-step random access shown in FIG1 and / or the two-step random access shown in FIG2.

[0177] For the four-step random access process, the first uplink channel includes: the PUSCH corresponding to message 3, and / or the Physical Uplink Control Channel (PUCCH) corresponding to message 4.

[0178] For a two-step random access procedure, the first uplink channel includes the PUCCH corresponding to message B.

[0179] This application mainly uses a four-step random access process as an example for illustration.

[0180] The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access process, including one or more of the following:

[0181] The resource type of the uplink transmission resource corresponding to the first uplink channel is the first resource type, and the RO type of the first PRACH transmission in the random access process is the first RO type;

[0182] The resource type of the uplink transmission resource corresponding to the first uplink channel is the second resource type, and the RO type of the first PRACH transmission in the random access process is the second RO type.

[0183] In summary, the determination of the transmission power of the first uplink channel requires reference to the transmission power of the first PRACH. In this application, the resource type of the first uplink channel corresponds to the transmission resource type corresponding to the first PRACH, ensuring that the channel interference situation of the first uplink channel is consistent with that of the first PRACH. This makes the transmission power of the first uplink channel determined based on the transmission power of the first PRACH more accurate, guaranteeing the demodulation performance of the first uplink channel. Simultaneously, it avoids excessive interference from the uplink transmission of the terminal device to other downlink receptions.

[0184] Figure 6 illustrates a flowchart of an uplink channel transmission method provided in an exemplary embodiment of this application. The method is executed by a network device and includes:

[0185] Step 320: The network device receives the first uplink channel. The first uplink channel is related to the random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0186] In some embodiments, the random access procedure includes the four-step random access shown in FIG1 and / or the two-step random access shown in FIG2.

[0187] For the four-step random access process, the first uplink channel includes: the PUSCH corresponding to message 3, and / or the Physical Uplink Control Channel (PUCCH) corresponding to message 4.

[0188] For a two-step random access procedure, the first uplink channel includes the PUCCH corresponding to message B.

[0189] This application mainly uses a four-step random access process as an example for illustration.

[0190] The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access process, including one or more of the following:

[0191] The resource type of the uplink transmission resource corresponding to the first uplink channel is the first resource type, and the RO type of the first PRACH transmission in the random access process is the first RO type;

[0192] The resource type of the uplink transmission resource corresponding to the first uplink channel is the second resource type, and the RO type of the first PRACH transmission in the random access process is the second RO type.

[0193] In summary, the determination of the transmission power of the first uplink channel requires reference to the transmission power of the first PRACH. In this application, the resource type of the first uplink channel corresponds to the transmission resource type corresponding to the first PRACH, ensuring that the channel interference situation of the first uplink channel is consistent with that of the first PRACH. This makes the transmission power of the first uplink channel determined based on the transmission power of the first PRACH more accurate, guaranteeing the demodulation performance of the first uplink channel. Simultaneously, it avoids excessive interference from the uplink transmission of the terminal device to other downlink receptions.

[0194] Based on the embodiments shown in Figures 5 and / or 6, the following exemplary description is provided:

[0195] 1. Resource type for uplink transmission resources corresponding to the first uplink channel

[0196] Resource types include:

[0197] • The first resource type includes time-domain units configured with sub-bands, or time-domain units configured with sub-bands in the first set of time-domain units;

[0198] • The second resource type includes time-domain units without configured subbands, or time-domain units in the second set of time-domain units without configured subbands.

[0199] The subband includes uplink subband and / or downlink subband, the first time domain unit set includes downlink time domain unit and / or flexible time domain unit, and the second time domain unit set includes uplink time domain unit and / or flexible time domain unit.

[0200] Alternatively, it can be understood that the first resource type is the SBFD resource type described in the background section above. For example, taking the resource corresponding to the first resource type as an SBFD symbol, an SBFD symbol includes symbols configured with SBFD subbands, or, an SBFD symbol includes symbols configured with SBFD subbands in the tdd-UL-DL-ConfigurationCommon configuration for downlink symbols and / or flexible symbols. SBFD subbands include uplink subbands and / or downlink subbands.

[0201] Alternatively, the second resource type can be understood as a resource type that does not include SBFD subbands. For example, taking the resource corresponding to the second resource type as non-SBFD symbols, non-SBFD symbols include symbols without configured SBFD subbands, or, non-SBFD symbols include uplink symbols and / or flexible symbols, or, non-SBFD symbols include uplink symbols and / or flexible symbols without configured SBFD subbands. SBFD subbands include uplink subbands and / or downlink subbands.

[0202] For example, as shown in Figure 7, {symbol 0, symbol 1, symbol 2} are downlink symbols configured with uplink subbands, meaning the resource type corresponding to {symbol 0, symbol 1, symbol 2} is the first resource type. {symbol 3, symbol 4, symbol 5, symbol 6} are symbols without configured subbands, meaning the resource type corresponding to {symbol 3, symbol 4, symbol 5, symbol 6} is the second resource type.

[0203] 2. For the RO type of the first PRACH transmission.

[0204] RO types include:

[0205] • First type of RO, including ROs related to sub-band full-duplex;

[0206] • Second RO type, including ROs that are not related to sub-band full-duplex.

[0207] Among them, the ROs related to subband full-duplex include: ROs on the subbands in the time domain units configured with subbands in the first time domain unit set.

[0208] ROs unrelated to subband full-duplex include: ROs in the uplink time domain unit, and / or, ROs in the flexible time domain unit.

[0209] Alternatively, the first RO type can be understood as the additional RO type described in the background section above. The second RO type is the RO type corresponding to the first RO type, such as the traditional RO type described in the background section above.

[0210] For example, as shown in Figure 8, symbol 0 is an uplink symbol, and no subband is configured in symbol 0, so RO 1 in symbol 0 is of the second RO type. Symbol 3 is a downlink symbol, and an uplink subband is configured in symbol 3, so RO 2 in symbol 3 is of the first RO type.

[0211] In some embodiments, the RO associated with subband full-duplex includes ROs in time domain units configured with subbands in the first time domain unit set, including: ROs in SBFD symbols configured for downlink under TDD and ROs in SBFD symbols configured for both downlink and flexible TDD.

[0212] In some embodiments, ROs unrelated to subband full-duplex include ROs configured for uplink symbols and / or ROs configured for flexible SBFD symbols.

[0213] In some embodiments, in a flexible symbol, even if an SBFD subband is configured and the RO is within the SBFD subband, the RO is still a second type of RO. For example, as shown in FIG8, if symbol 0 is a flexible symbol and an uplink subband is configured in symbol 0, then RO 2 in symbol 0 is of the second type of RO.

[0214] In some embodiments, the RO associated with subband full-duplex includes: the RO configured by the first random access configuration. The first random access configuration is a random access configuration associated with subband full-duplex. The first random access configuration may also be referred to as an additional RACH configuration.

[0215] In some embodiments, the ROs (Redirect Access Routers) unrelated to subband full-duplex include: the ROs configured by the second random access configuration. The second random access configuration is a random access configuration unrelated to subband full-duplex. The second random access configuration may also be referred to as a legacy RACH configuration.

[0216] In some embodiments, the RO associated with subband full-duplex can also be called an additional RO, and the RO not associated with subband full-duplex can also be called a conventional RO.

[0217] As mentioned in the background section above, regardless of the RACH configuration option, there are two types of ROs for terminals that support SBFD: legacy RO and additional RO.

[0218] A traditional RO is a RO that is available under traditional rules, such as the ROs in the uplink symbol (UL symbol) and flexible symbol in option 1, or the ROs available in the traditional RACH configuration in option 2.

[0219] The definition of additional RO differs slightly for the two RACH configuration options: For RACH configuration option 1, additional RO includes the RO in the SBFD symbol configured for downlink and the RO in the SBFD symbol configured for downlink and flexible across TDD; for RACH configuration option 2, additional RO includes the RO in the additional RACH configuration.

[0220] 3. Correspondence between resource types and RO types

[0221] Resource types correspond to RO types, including:

[0222] • The resource type is the first resource type, and the RO type is the first RO type;

[0223] For example, the resource type of the uplink transmission resource corresponds to the RO type of the first PRACH transmission in the random access process, which means that the resource type of the uplink transmission resource is the first resource type, and the RO type of the first PRACH transmission in the random access process is the first RO type.

[0224] • The resource type is the second resource type, and the RO type is the second RO type.

[0225] For example, the resource type of the uplink transmission resource corresponds to the RO type of the first PRACH transmission in the random access process, which means that the resource type of the uplink transmission resource is the second resource type, and the RO type of the first PRACH transmission in the random access process is the second RO type.

[0226] In some embodiments, the method further includes: the terminal device determining the uplink transmission resource corresponding to the first uplink channel based on the RO type of the first PRACH transmission.

[0227] For example, if the RO type of the first PRACH transmission is the first RO type, then the uplink transmission resource corresponding to the first uplink channel is determined to be the transmission resource corresponding to the first resource type. As another example, if the RO type of the first PRACH transmission is the second RO type, then the uplink transmission resource corresponding to the first uplink channel is determined to be the transmission resource corresponding to the second resource type.

[0228] For example, as shown in Figure 9, if the terminal device transmits the first PRACH on the first RO type, the terminal device sends PUCCH 1 to the network device, and the resource type corresponding to PUCCH 1 is the first resource type. If the terminal device transmits the first PRACH on the second RO type, the terminal device sends PUCCH 2 to the network device, and the resource type corresponding to PUCCH 2 is the second resource type.

[0229] In some embodiments, the RO type is a first RO type, including one or more of the following:

[0230] • All PRACH transmissions in the random access process belong to the first RO type, and the first PRACH transmission is at least one of all PRACH transmissions;

[0231] • In the random access process, the RO type of the PRACH transmission in the first PRACH transmission set is the second RO type, the RO type of the PRACH transmission in the second PRACH transmission set is the first RO type, the first PRACH transmission set is before the second PRACH transmission set, and the first PRACH transmission is at least one of the second PRACH transmission set.

[0232] Optionally, all PRACH transmissions prior to the first PRACH transmission belong to the first RO type, including the first PRACH transmission itself. For example, as shown in Figure 10, all PRACH transmissions prior to the first PRACH transmission (including PRACH 1, PRACH 2, etc.) belong to the first RO type, and the first PRACH transmission also belongs to the first RO type.

[0233] Optionally, in the PRACH transmissions prior to the first PRACH transmission, the RO type of the initial PRACH transmission is the second RO type. After the number of PRACH transmissions in the second RO type reaches a threshold, the transmission switches to the first RO type. For example, as shown in Figure 11, the RO type corresponding to the initial PRACH 1 is the second RO type. Assuming the threshold is 2, if the RO type corresponding to PRACH 2 is also the second RO type, the terminal device will switch to the first RO type when transmitting PRACH 3, and the RO type corresponding to the first PRACH transmission will be the first RO type.

[0234] In some embodiments, the RO type is a second RO type, including one or more of the following:

[0235] • All PRACH transmissions in the random access process belong to the second RO type, and the first PRACH transmission is at least one of all PRACH transmissions;

[0236] • In the random access process, the RO type of the PRACH transmission in the third PRACH transmission set is the first RO type, the RO type of the PRACH transmission in the fourth PRACH transmission set is the second RO type, the third PRACH transmission set precedes the fourth PRACH transmission set, and the first PRACH transmission is at least one of the fourth PRACH transmission sets.

[0237] Optionally, all PRACH transmissions prior to the first PRACH transmission belong to the second RO type, including the first PRACH transmission, which also belongs to the second RO type. For example, as shown in Figure 12, all PRACH transmissions prior to the first PRACH transmission (including PRACH 1, PRACH 2, etc.) belong to the second RO type, and the first PRACH transmission also belongs to the second RO type.

[0238] Optionally, in the PRACH transmissions prior to the first PRACH transmission, the RO type of the initial PRACH transmission is the first RO type. After the number of PRACH transmissions in the first RO type reaches a first quantity threshold, the transmission switches to the second RO type. For example, as shown in Figure 13, the RO type corresponding to the initial PRACH 1 is the first RO type. Assuming the quantity threshold is 2, if the RO type corresponding to PRACH 2 is also the first RO type, the terminal device will switch to the second RO type when transmitting PRACH 3, and the RO type corresponding to the first PRACH transmission will be the second RO type.

[0239] Based on this scheme, during a random access process, if the RO type corresponding to a PRACH transmission switches from the first RO type to the second RO type, then the RO type of the first PRACH transmission is considered to be the second RO type. Conversely, if the RO type corresponding to a PRACH transmission switches from the second RO type to the first RO type, then the RO type of the first PRACH transmission is considered to be the first RO type. This scheme provides a solution for handling the issue of a switch in the RO type corresponding to a PRACH transmission during a random access process.

[0240] It should be noted that the embodiments shown in Figure 5 and Figure 6 can be combined to form a new combined embodiment.

[0241] 4. For the first uplink channel, which is the PUSCH corresponding to message 3.

[0242] In some embodiments, after receiving first control information sent by the network device, the terminal device sends a first uplink channel.

[0243] Figure 14 illustrates a flowchart of an uplink channel transmission method provided in an exemplary embodiment of this application. The method is executed by a terminal device and includes:

[0244] Step 420: The terminal device receives the first control information, which is used to schedule the first uplink channel.

[0245] In some embodiments, the first control information is RAR or DCI. RAR or DCI is used to schedule the PUSCH corresponding to message 3.

[0246] Figure 15 illustrates a flowchart of an uplink channel transmission method provided in an exemplary embodiment of this application. The method is executed by a network device and includes:

[0247] Step 520: The network device sends first control information, which is used to schedule the first uplink channel.

[0248] In some embodiments, the first control information is RAR. RAR is used to schedule the PUSCH corresponding to message 3.

[0249] Based on the embodiments shown in FIG14 and / or FIG15, the following exemplary description is provided:

[0250] In some embodiments, the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission. For example, the resource type of the uplink transmission resource corresponding to the first uplink channel is a first resource type, and the RO type of the first PRACH transmission is a first RO type. Alternatively, the resource type of the uplink transmission resource corresponding to the first uplink channel is a second resource type, and the RO type of the first PRACH transmission is a second RO type.

[0251] In some embodiments, it is not expected that the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission.

[0252] Among them, resource types that do not correspond to RO types include:

[0253] • The resource type is the first resource type, and the RO type is the second RO type;

[0254] • The resource type is the second resource type, and the RO type is the first RO type.

[0255] For example, the terminal device does not expect the uplink transmission resource corresponding to the first uplink channel to be of the first resource type, and the RO type of the first PRACH transmission to be of the second RO type. Or, for another example, the terminal device does not expect the uplink transmission resource corresponding to the first uplink channel to be of the second resource type, and the RO type of the first PRACH transmission to be of the first RO type.

[0256] In some embodiments, the first control information includes a time-domain resource indication field, which is used to determine the uplink transmission resource corresponding to the first uplink channel. The uplink transmission resource is determined based on the time-domain resource indication field and a time-domain cell corresponding to the RO type. The time-domain resource indication field is used to indicate the time slot offset between the first control information and the first uplink channel. The time slot offset is calculated when the resource type of the first uplink transmission resource corresponds to the RO type.

[0257] One implementation involves the terminal device receiving or detecting a RAR, which is used to schedule the PUSCH transmission corresponding to message 3. The resource type of the PUSCH transmission corresponding to message 3 corresponds to the RO type of the first PRACH transmission.

[0258] In one implementation, the terminal device receives or detects a Resource Allocation (RAR), which is used to schedule the PUSCH transmission corresponding to message 3. The terminal device does not expect the resource type of the PUSCH transmission corresponding to message 3 to not correspond to the RO type of the first PRACH transmission.

[0259] One implementation involves a terminal device receiving or detecting a Responsive Access Registry (RAR), which is used to schedule the PUSCH transmission corresponding to message 3. The RAR includes a Time Domain Resource Indicator (TRO) field, which indicates the time slot offset k0 between the RAR and the PUSCH corresponding to message 3. This time slot offset is calculated only for the time slot corresponding to the resource type of the RO type corresponding to the first PRACH transmission. This can be understood as the time domain unit where the PUSCH corresponding to message 3 is located being the k0th or k0+1th available time domain unit after the time domain unit where the RAR is located. This available time domain unit is determined based on the time domain unit corresponding to the resource type of the RO type corresponding to the first PRACH transmission, or the time slot corresponding to the resource type of the RO type corresponding to the first PRACH transmission is the available time slot corresponding to the PUSCH transmission corresponding to message 3.

[0260] One implementation involves a terminal device receiving or detecting a Responsive Access Registry (RAR), which is used to schedule the transmission of the PUSCH corresponding to message 3. The RAR includes a time-domain resource indicator field, which indicates the time slot offset k0 between the RAR and the PUSCH corresponding to message 3. The PUSCH corresponding to message 3 is transmitted within the first available time slot after the time slot offset from the time slot where the RAR is located. This available time slot is determined based on the time slot corresponding to the resource type of the RO type corresponding to the first PRACH transmission, or the time slot corresponding to the resource type of the RO type corresponding to the first PRACH transmission is the available time slot corresponding to the PUSCH transmission corresponding to message 3.

[0261] In some embodiments, the method further includes: the terminal device determining the transmission resources of the first uplink channel based on the first control information.

[0262] In some embodiments, the method further includes: the terminal device does not expect to receive the second control information, the second control information is used to schedule the first uplink channel, and the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission.

[0263] One implementation is that the terminal device does not expect to receive or detect a RAR, which is used to schedule the PUSCH transmission corresponding to message 3, and the resource type of the PUSCH transmission corresponding to message 3 does not correspond to the RO type of the first PRACH transmission.

[0264] Since the transmission power of the PUSCH corresponding to message 3 is determined based on the transmission power of the PRACH, the advantage of determining the resource type of subsequent uplink transmissions (such as the PUSCH transmission corresponding to message 3) based on the RO type of the PRACH transmission is that: the power control of the PUSCH corresponding to message 3 will be simpler, and the existing mechanism can be reused to the maximum extent; in addition, if the resource type of the PUSCH transmission corresponding to message 3 corresponds to the RO type of the PRACH transmission, the interference consistency between the corresponding RO type and resource type is relatively high. Determining the resource type of subsequent uplink transmissions based on the RO type of the corresponding PRACH is also beneficial for the base station to judge the interference situation.

[0265] It should be noted that the embodiments shown in Figure 14 and Figure 15 can be combined to form a new combined embodiment. Alternatively, the embodiments shown in Figure 5 and Figure 14 can be combined to form a new combined embodiment. Step 420 occurs before step 220. Alternatively, the embodiments shown in Figure 6 and Figure 15 can be combined to form a new combined embodiment. Step 520 occurs before step 320. Alternatively, the embodiments shown in Figure 5, Figure 6, Figure 14, and Figure 15 can be combined to form a new combined embodiment. Step 520 occurs before step 420, step 420 occurs before step 220, and step 220 occurs before step 320.

[0266] Figure 16 illustrates a flowchart of an uplink channel transmission method provided in an exemplary embodiment of this application. The method is executed by a terminal device and a network device. Taking a four-step random access procedure as an example, the method includes:

[0267] Step 1: The terminal device sends message 1 to the network device, and the network device receives message 1 sent by the terminal device;

[0268] The RO type of message 1 includes: first RO type and / or second RO type. See the embodiments described in section 2 above.

[0269] Step 2: The network device sends message 2 to the terminal device, and the terminal device receives message 2 sent by the network device;

[0270] Message 2 carries a RAR, which is used to schedule the PUSCH corresponding to message 3.

[0271] Step 3: The terminal device sends message 3 to the network device, and the network device receives message 3 sent by the terminal device;

[0272] The resource types used to transmit the PUSCH corresponding to message 3 include: a first resource type and / or a second resource type. See the embodiment described in section 1 above.

[0273] In some embodiments, the RO type of message 1 corresponds to the resource type of the PUSCH used to transmit message 3.

[0274] Optionally, if the RO type of message 1 is the first RO type, then the resource type used to transmit the PUSCH corresponding to message 3 is the first resource type. Optionally, if the RO type of message 1 is the second RO type, then the resource type used to transmit the PUSCH corresponding to message 3 is the second resource type.

[0275] Step 4: The network device sends message 4 to the terminal device, and the terminal device receives message 4 sent by the network device.

[0276] 5. For the first uplink channel, which is the PUCCH corresponding to message 4.

[0277] In some embodiments, the method further includes: the terminal device determining the uplink transmission resource corresponding to the first uplink channel based on the RO type corresponding to the first PRACH transmission.

[0278] For example, if the RO type corresponding to the first PRACH transmission is a first RO type, then the uplink transmission resource corresponding to the first uplink channel is determined to be a transmission resource of the first resource type. Or, if the RO type corresponding to the first PRACH transmission is a second RO type, then the uplink transmission resource corresponding to the first uplink channel is determined to be a transmission resource of the second resource type.

[0279] Figure 17 illustrates a flowchart of an uplink channel transmission method provided in an exemplary embodiment of this application. The method is executed by a terminal device and a network device. Taking a four-step random access procedure as an example, the method includes:

[0280] Step 11: The terminal device sends message 1 to the network device, and the network device receives message 1 sent by the terminal device;

[0281] The RO type of message 1 includes: first RO type and / or second RO type. See the embodiments described in section 2 above.

[0282] Step 12: The network device sends message 2 to the terminal device, and the terminal device receives message 2 sent by the network device;

[0283] Step 13: The terminal device sends message 3 to the network device, and the network device receives message 3 sent by the terminal device;

[0284] Step 14: The network device sends the first control information to the terminal device, and the terminal device receives the first control information sent by the network device;

[0285] For example, the first control information includes a DCI. The DCI is used to schedule the PUCCH corresponding to message 4. For instance, the DCI carries the target duration k1.

[0286] Step 15: The network device sends message 4 to the terminal device, and the terminal device receives message 4 sent by the network device;

[0287] Step 16: The terminal device sends the PUCCH corresponding to message 4 to the network device, and the network device receives the PUCCH corresponding to message 4 sent by the terminal device.

[0288] The resource types used to transmit the PUCCH corresponding to message 4 include: a first resource type and / or a second resource type. See the embodiment described in section 1 above.

[0289] In some embodiments, the RO type of message 1 corresponds to the resource type of the PUCCH used to transmit message 4.

[0290] Optionally, if the RO type of message 1 is the first RO type, then the resource type used to transmit the PUCCH corresponding to message 4 is the first resource type. Optionally, if the RO type of message 1 is the second RO type, then the resource type used to transmit the PUCCH corresponding to message 4 is the second resource type.

[0291] In some embodiments, after receiving the PDSCH corresponding to message 4, the terminal device sends the PUCCH corresponding to message 4 to the network device within the first target time domain unit after the target duration k1 time domain units following the time domain unit where the PDSCH is located. Optionally, the PUCCH corresponding to message 4 carries a Hybrid Automatic Repeat request ACK (HARQ-ACK) signal.

[0292] In one scenario, when counting the time-domain units of the target duration, the first resource type and / or the second resource type are not distinguished. Alternatively, the target duration k1 can be understood as the duration of k1 consecutive time-domain units following the PDSCH corresponding to message 4. For example, as shown in Figure 18, assuming the terminal device receives the PDSCH corresponding to message 4 on symbol 0, and the target duration k1 corresponds to 3 symbols, then the target duration 1 includes consecutive symbols 1 to 3. It should be noted that in this case, the time-domain unit where the PUCCH is located is the first "available" time-domain unit after k1 time-domain units following the time-domain unit where the PDSCH is located. The "available" time-domain unit is determined based on the RO type of the PRACH transmission. The resource type corresponding to the "available" time-domain unit corresponds to the RO type of the PRACH transmission.

[0293] In one scenario, when counting time-domain units of the target duration, the resource type of the counted time-domain units is determined based on the RO type corresponding to the first PRACH transmission. Alternatively, it can be understood that if the RO type corresponding to the first PRACH transmission is the first RO type, the target duration k1 includes k1 time-domain units of the first resource type. If the RO type corresponding to the first PRACH transmission is the second RO type, the target duration k1 includes k1 time-domain units of the second resource type. For example, as shown in Figure 18, assuming the terminal device receives the PDSCH corresponding to message 4 on symbol 0, and the target duration includes 3 symbols of the first resource type, then the target duration 2 includes symbols 3 to 5. For example, as shown in Figure 18, assuming the terminal device receives the PDSCH corresponding to message 4 on symbol 0, and the target duration includes 3 symbols of the second resource type, then the target duration 3 includes symbols 1 to 7. It should be noted that in this case, the time-domain unit where the PUCCH is located is the k1th or k1+1th available time-domain unit after the time-domain unit where the PDSCH is located. The "available" time domain unit is determined based on the RO type in which the PRACH transmission takes place. The resource type corresponding to the "available" time domain unit corresponds to the RO type in which the PRACH transmission takes place.

[0294] Optionally, the resource type of the transmission resource corresponding to the first target time domain unit corresponds to the RO type of message 1. For example, if the RO type of message 1 is the first RO type, then the resource type of the first target time domain unit is the first resource type. If the RO type of message 1 is the second RO type, then the resource type of the first target time domain unit is the second resource type. For example, as shown in Figure 19, the transmission resource type for PUCCH transmission by the terminal device is selected and determined by the terminal device itself. For example, since the resource type corresponding to PUCCH1 is the second resource type, when the RO type corresponding to the first PRACH transmission is the second RO type, the terminal device selects the symbol containing PUCCH1 as the first target time domain unit. Since the resource type corresponding to PUCCH2 is the first resource type, when the RO type corresponding to the first PRACH transmission is the first RO type, the terminal device selects the symbol containing PUCCH2 as the first target time domain unit.

[0295] 6. For the first PRACH transmission

[0296] In some embodiments, the first PRACH transmission is the most recent PRACH transmission during the random access process. Alternatively, it can be understood as follows: if the terminal device determines the uplink transmission resource corresponding to the first uplink channel at a first moment, then the first PRACH transmission is the most recent PRACH transmission during the random access process relative to that first moment.

[0297] In some embodiments, the first PRACH transmission is the PRACH transmission corresponding to the first control information during random access. The first control information is sent by the network device to the terminal device and is used to schedule the first uplink channel. After receiving the first control information, the terminal device determines the uplink transmission resources corresponding to the first uplink channel based on the first control information.

[0298] In summary, the determination of the transmission power of the first uplink channel requires reference to the transmission power of the first PRACH. In this application, the advantage of determining the resource type of subsequent uplink transmissions based on the RO type of the most recent PRACH transmission is that: 1) During multiple PRACH transmissions, PRACH resources can be selected to support switching from supplementary RO to traditional RO transmission. Therefore, when determining the resource type of the PUSCH transmission corresponding to message 3, it is necessary to know which PRACH transmission's corresponding RO was used as the basis for determination; 2) It ensures the demodulation / detection performance of the PUSCH corresponding to message 3. Since only the most recent PRACH transmission undergoes power ramp-up during multiple PRACH transmissions, allowing the base station to receive it correctly, determining the resource type of the PUSCH corresponding to message 3 based on the RO type of the most recent PRACH transmission facilitates the base station's power adjustment of the PUSCH corresponding to message 3, thus ensuring the demodulation / detection performance of the PUSCH corresponding to message 3 to a certain extent.

[0299] In some embodiments, the resource type of the uplink transmission resource corresponding to the first uplink channel is not limited to the RO type corresponding to the first PRACH transmission. Even if the RO type corresponding to the first PRACH transmission is an additional RO, the transmission of Msg3 PUSCH can still be scheduled on non-SBFD symbols. However, since the resource type of Msg3 PUSCH transmission and the RO type corresponding to the first PRACH transmission may not correspond, the interference situation may be different. If the Msg3 power is still determined based on the first PRACH power, it may not be possible to guarantee the correct demodulation of Msg3 PUSCH, or it may cause significant potential interference in the transmission of Msg3 PUSCH.

[0300] Based on this, embodiments of this application provide a method for determining transmission power, which can clearly define the transmission power of Msg3 PUSCH. When the symbol type corresponding to Msg3PUSCH is inconsistent with the RO type corresponding to PRACH transmission, or when the RO type corresponding to PRACH transmission includes traditional RO and additional RO, the method provided in this application embodiment can determine a reasonable Msg3 PUSCH transmission power according to the configuration parameters or parameter values ​​corresponding to different scenarios.

[0301] Figure 20 illustrates a flowchart of a method for determining transmission power provided in an exemplary embodiment of this application. The method is executed by a terminal device and includes:

[0302] Step 620: The terminal device determines the transmission power or transmission power parameters of the first uplink channel, which is related to the random access procedure.

[0303] In some embodiments, the first uplink channel includes: the PUSCH corresponding to message 3.

[0304] In some embodiments, the transmit power or transmit power parameter of the first uplink channel is determined based on the resource type of the uplink transmission resource corresponding to the first uplink channel and / or the RO type of the first PRACH transmission. The RO type is described in the embodiments in Part 2 above.

[0305] In some embodiments, the terminal device determines the transmission power or transmission power parameters based on the configuration parameters sent by the network device.

[0306] Figure 21 illustrates a flowchart of a method for determining transmission power according to an exemplary embodiment of this application. The method is executed by a terminal device and includes:

[0307] Step 720: The terminal device receives configuration parameters, which are used to determine the transmission power or transmission power parameters of the first uplink channel. The first uplink channel is related to the random access procedure.

[0308] In some embodiments, the configuration parameters include one or more of the following: power ramp-up step size, open-loop power control parameters, a first parameter, a second parameter, and a first offset value. The power ramp-up step size includes a first power ramp-up step size and / or a second power ramp-up step size, wherein the first power ramp-up step size corresponds to a first RO type or a first resource type, and the second power ramp-up step size corresponds to a second RO type or a second resource type.

[0309] In some embodiments, the configuration parameter may take one or more of the following values:

[0310] • A value of 1 corresponds to the first RO type or the first resource type;

[0311] • The value 2 corresponds to the second RO type or the second resource type.

[0312] In some embodiments, the configuration parameter may take one or more of the following values:

[0313] • The value 3 is used to specify the resource type of the uplink transmission resource corresponding to the first uplink channel, which corresponds to the RO type of the first PRACH transmission.

[0314] • A value of 4 indicates that the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission.

[0315] In some embodiments, the configuration parameter may take one or more of the following values:

[0316] • The value is 5, which is used for the resource type of the uplink transmission resource corresponding to the first uplink channel, which is the first resource type and the RO type where the first PRACH transmission is located is the first RO type;

[0317] • The value 6 is used to specify the resource type of the uplink transmission resource corresponding to the first uplink channel as the first resource type and the RO type of the first PRACH transmission as the second RO type;

[0318] • The value is 7, which is used for the resource type of the uplink transmission resource corresponding to the first uplink channel, which is the second resource type, and the RO type of the first PRACH transmission is the first RO type;

[0319] • The value is 8, which is used for the resource type of the uplink transmission resource corresponding to the first uplink channel, which is the second resource type, and the RO type where the first PRACH transmission is located is the second RO type.

[0320] Figure 22 illustrates a flowchart of a method for determining transmit power provided in an exemplary embodiment of this application. The method is performed by a network device and includes:

[0321] Step 820: The network device sends configuration parameters, which are used to determine the transmission power or transmission power parameters of the first uplink channel. The first uplink channel is related to the random access procedure.

[0322] It should be noted that the embodiments shown in Figure 21 and Figure 22 can be combined to form a new combined embodiment.

[0323] In some embodiments, upon receiving the configuration parameters, the terminal device determines the value of the configuration parameters based on the RO type of the first PRACH transmission. For example, if the RO type of the first PRACH transmission is a first RO type, the configuration parameter is determined to be value 1. Or, if the RO type of the first PRACH transmission is a second RO type, the configuration parameter is determined to be value 2.

[0324] Optionally, the terminal device may determine the transmit power or transmit power parameters of the first uplink channel in one or more of the following ways:

[0325] Method 1: Determined based on power ramp-up;

[0326] Method 2: Determined based on the first parameter;

[0327] Method 3: Determined based on the second parameter;

[0328] Method 4: Determined based on the first offset value.

[0329] Regarding method one:

[0330] The configuration parameters include at least the power ramp-up step size. Optionally, the configuration parameters may also include one or more of a first parameter, a second parameter, and a first offset value. Optionally, the other parameters in the configuration parameters besides the power ramp-up step size may adopt conventional configuration methods in related technologies, or they may adopt the configuration methods provided in the embodiments of this application.

[0331] In some embodiments, the transmit power of the first uplink channel is determined based on a first power ramp-up during the random access process, which is the total power ramp-up from the first PRACH preamble transmission to the most recent PRACH preamble transmission.

[0332] For example, as shown in Figure 23, assuming the power of the first PRACH preamble transmission is P0, the power of the second PRACH preamble transmission is P1, and the power of the third PRACH preamble transmission is P2, then the first power ramp-up is P2-P0, or the first power ramp-up is (P1-P0)+(P2-P1).

[0333] In some embodiments, when the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission, the transmission power of the first uplink channel is determined based on the first power ramp-up during the random access process. The first power ramp-up is the total power ramp-up from the first PRACH preamble to the most recent PRACH preamble transmission.

[0334] In some embodiments, the first power ramp is determined based on one or more of the following parameters:

[0335] • The first power ramp-up step corresponds to the first RO type or the first resource type;

[0336] • The second power ramp-up step corresponds to the second RO type or the second resource type;

[0337] • The value of the power ramp-up counter.

[0338] In some embodiments, when both the first PRACH preamble transmission and the most recent PRACH preamble transmission correspond to the first RO type, the first power ramp is determined based on the first power ramp step size and the value of the power ramp counter. The first power ramp is equal to (the value of the power ramp counter - 1) * the first power ramp step size. Since PRACH transmissions during random access only occur on the ROs corresponding to the first RO type, determining the transmission power of the PUSCH corresponding to message 3 based solely on the first power ramp step size corresponding to the first RO type helps ensure that the base station accurately receives the PUSCH corresponding to message 3 and can, to a certain extent, guarantee the demodulation / detection performance of the PUSCH corresponding to message 3.

[0339] For example, as shown in Figure 24, assuming that the first PRACH preamble corresponds to the first RO type, the second PRACH preamble transmission corresponds to the first RO type, and the third PRACH preamble transmission corresponds to the first RO type, then the power ramp counter value is 3, and the first power ramp is (3-1)*first power ramp step size.

[0340] In some embodiments, when both the first PRACH preamble transmission and the most recent PRACH preamble transmission correspond to the second RO type, the first power ramp is determined based on the second power ramp step size and the value of the power ramp counter. The first power ramp is equal to (the value of the power ramp counter - 1) * the second power ramp step size. Since PRACH transmissions during random access only occur on the ROs corresponding to the second RO type, determining the transmission power of the PUSCH corresponding to message 3 based solely on the second power ramp step size corresponding to the second RO type helps ensure that the base station accurately receives the PUSCH corresponding to message 3 and can, to a certain extent, guarantee the demodulation / detection performance of the PUSCH corresponding to message 3.

[0341] For example, as shown in Figure 23, assuming that the first PRACH preamble corresponds to the second RO type, the second PRACH preamble transmission corresponds to the second RO type, and the third PRACH preamble transmission corresponds to the second RO type, then the value of the power ramp counter is 3, and the first power ramp is (3-1)*the second power ramp step size.

[0342] In some embodiments, when the transmission from the first PRACH preamble to the xth PRACH preamble corresponds to the first RO type, and the transmission from the (x+1)th PRACH preamble to the most recent PRACH preamble corresponds to the second RO type, the first power ramp is determined based on the values ​​of the first power ramp step size, the second power ramp step size, and the power ramp counter, where x is a positive integer. Alternatively, if during random access, the first PRACH preamble transmission or the initial PRACH preamble transmission corresponds to the first RO type, and after the number of PRACH preamble transmissions reaches a second threshold, the transmission switches to the second RO type, then the first power ramp is determined based on the values ​​of the first power ramp step size, the second power ramp step size, and the power ramp counter. Wherein, the first power climb is equal to the sum of the first value and the offset value. The first value is equal to the product of the power climb counter value minus one and the second power climb step size. The offset value is equal to the product of the second value and the third value. The second value is equal to the first power climb step size minus the second power climb step size. The third value is equal to the power climb counter value corresponding to the RO type conversion minus one. For example, the first power climb is equal to (power climb counter value - 1) * second power climb step size + offset value, and the offset value = (first power climb step size - second power climb step size) * (power climb counter value during RO type conversion - 1).

[0343] For example, as shown in Figure 25, assuming the first PRACH preamble corresponds to the second RO type, the second PRACH preamble transmission corresponds to the second RO type, the third PRACH preamble transmission corresponds to the first RO type, and the fourth PRACH preamble transmission corresponds to the first RO type, then the power ramp counter value during RO type conversion is 2, and the offset value = (first power ramp step size - second power ramp step size) * (2 - 1). The first power ramp is (4 - 1) * second power ramp step size + offset value.

[0344] When PRACH transmission switches from supplementary RO to traditional RO, if the power ramp-up steps for supplementary RO and traditional RO are different, the offset value can compensate for the PRACH transmission power. If the power of Msg3 PUSCH is calculated using the PRACH transmission power as a reference without adding offset compensation, this will cause a deviation in the transmission power of Msg3 PUSCH. If the transmission power of Msg3 PUSCH is too low, it may cause Msg3 PUSCH to fail to demodulate correctly; if the transmission power of Msg3 PUSCH is too high, it may cause excessive potential interference.

[0345] The first power ramp-up is as described above: ΔP rampup,b,f,cThe method for determining the transmission power of the first uplink channel based on the first power ramp-up is described in Formulas 1 and 4 above. Wherein, except for ΔP... rampup,b,f,c Other parameters, besides those mentioned above, use traditional parameter values ​​from related technologies.

[0346] In some embodiments, Method 1 can be used not only for cases where the RO type is a first RO type and a second RO type, but also for cases where two-step random access is converted to four-step random access. Optionally, the RO type corresponding to two-step random access is a 2-step RO type, and the RO type corresponding to four-step random access is a 4-step RO type. In this case, the first RO type includes the 2-step RO type, and the second RO type includes the 4-step RO type; or, the first RO type includes the 4-step RO type, and the second RO type includes the 2-step RO type.

[0347] Regarding method two:

[0348] The configuration parameters include at least a first parameter, which is used to determine the open-loop power control parameters. Optionally, the configuration parameters may also include one or more of the following: power ramp-up step size, a second parameter, and a first offset value. Optionally, the other parameters in the configuration parameters besides the first parameter may adopt conventional configuration methods in related technologies, or they may adopt the configuration methods provided in the embodiments of this application.

[0349] In some embodiments, when the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission, the terminal device determines the open-loop power control parameters of the first uplink channel based on the first parameter. When the resource type of Msg3 PUSCH does not correspond to the RO type corresponding to the first PRACH transmission, the transmit power parameters of Msg3 PUSCH are adjusted to compensate for the inconsistency of interference / channel conditions of different symbol types, so that Msg3 PUSCH can be received correctly, while controlling the potential interference level within a certain range.

[0350] The first parameter is, for example, preambleReceivedTargetPower, or can be understood as the P mentioned above. O_PRE The open-loop power control parameters are as described above for P. O_NOMINAL_PUSCH,f,c (0). The method for determining the transmission power of the first uplink channel based on the first parameter is described in Formulas 1 and 2 above. Wherein, except for P... O_PRE Other parameters, besides those mentioned above, use traditional parameter values ​​from related technologies.

[0351] In some embodiments, the value of the first parameter includes one or more of the following:

[0352] • The first value corresponds to the first RO type or the first resource type;

[0353] • The second value corresponds to the second RO type or the second resource type.

[0354] In some embodiments, the first parameter is determined based on the resource type of the uplink transmission resource corresponding to the first uplink channel. When the resource type is a first resource type, the first parameter takes a first value; when the resource type is a second resource type, the first parameter takes a second value.

[0355] For example, the additional RO and the traditional RO correspond to different first parameters. The terminal determines the corresponding first parameter according to the resource type of Msg3 PUSCH. In one implementation, if the resource type of Msg3 PUSCH is SBFD, the open-loop power control parameter of Msg3 PUSCH is determined according to the first parameter corresponding to the additional RO; if the resource type of Msg3 PUSCH is non-SBFD, the open-loop power control parameter of Msg3 PUSCH is determined according to the first parameter corresponding to the traditional RO. The advantage of determining the corresponding first parameter according to the resource type of Msg3 PUSCH is that the determined first parameter has fully considered the impact of interference / channel conditions of different symbol types.

[0356] For example, the correspondence between the values ​​of the first parameter and the RO type is shown in Table 2 below:

[0357] Table 2

[0358] For example, the correspondence between the values ​​of the first parameter and the resource types is shown in Table 3 below:

[0359] Table 3

[0360] In some embodiments, the first parameter is determined based on the RO type of the first PRACH transmission. When the RO type is a first RO type, the first parameter takes a first value; when the RO type is a second RO type, the first parameter takes a second value.

[0361] For example, the open-loop power control parameters of Msg3 PUSCH are determined based on the first parameter corresponding to the RO type of the first PRACH transmission. In one implementation, if the RO type corresponding to the first PRACH transmission is an additional RO, the open-loop power control parameters of Msg3 PUSCH are determined based on the first parameter corresponding to the additional RO; if the RO type corresponding to the first PRACH transmission is a traditional RO, the open-loop power control parameters of Msg3 PUSCH are determined based on the first parameter corresponding to the traditional RO. Determining the corresponding first parameter based on the RO type of the first PRACH maximizes the reuse of related technologies.

[0362] Regarding method three:

[0363] The configuration parameters include at least a second parameter, which is used to determine the open-loop power control parameters. Optionally, the configuration parameters may also include one or more of the following: power ramp-up step size, a first parameter, and a first offset value. Optionally, the other parameters in the configuration parameters besides the second parameter may adopt conventional configuration methods in related technologies, or they may adopt the configuration methods provided in the embodiments of this application.

[0364] In some embodiments, the network device is configured with at least two second parameters. The at least two second parameters can be implemented by directly configuring or indicating multiple second parameters, or by configuring or indicating one second parameter plus at least one offset value.

[0365] The second parameter is, for example, msg3-DeltaPreamble, or can be understood as the aforementioned Δ PREAMBLE_Msg3 The open-loop power control parameters are as described above for P. O_NOMINAL_PUSCH,f,c (0). The method for determining the transmission power of the first uplink channel based on the second parameter is described in Formulas 1 and 2 above. Wherein, except for Δ... PREAMBLE_Msg3 Other parameters, besides those mentioned above, use traditional parameter values ​​from related technologies.

[0366] Optionally, at least two of the second parameters may take one or more of the following values:

[0367] • The third value is used to determine the resource type of the uplink transmission resource corresponding to the first uplink channel, which corresponds to the RO type of the first PRACH transmission.

[0368] • The fourth value is used when the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission.

[0369] For example, the values ​​of at least two second parameters are shown in Table 4 below:

[0370] Table 4

[0371] Table 4 above shows direct configuration or direct indication. If one second parameter is configured or indicated, and the other is indicated by an offset value, then the values ​​of at least two second parameters are shown in Table 5 or Table 6 below:

[0372] Table 5

[0373] Table 6

[0374] The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission, or the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission, as described in the above embodiments.

[0375] Optionally, at least two of the second parameters may take one or more of the following values:

[0376] • The fifth value is that the resource type of the uplink transmission resource corresponding to the first uplink channel is the first resource type, and the RO type of the first PRACH transmission is the first RO type;

[0377] The sixth value is used to determine that the resource type of the uplink transmission resource corresponding to the first uplink channel is the second resource type, and the RO type of the first PRACH transmission is the second RO type.

[0378] • The seventh value is that the resource type of the uplink transmission resource corresponding to the first uplink channel is the first resource type, and the RO type of the first PRACH transmission is the second RO type;

[0379] • The eighth value is used for the resource type of the uplink transmission resource corresponding to the first uplink channel, which is the second resource type, and the RO type of the first PRACH transmission is the first RO type.

[0380] For example, the values ​​of at least two second parameters are shown in Table 7 below:

[0381] Table 7

[0382] Table 7 above shows direct configuration or direct indication. If a second parameter value is configured or indicated, and other values ​​are indicated as offset values, then the optional values ​​of at least two second parameters are shown in Tables 8-11 below:

[0383] Table 8

[0384] Table 9

[0385] Table 10

[0386] Table 11

[0387] Regarding method four:

[0388] The configuration parameters include at least a first offset value, which is used to determine the closed-loop power control parameters. Optionally, the configuration parameters may also include one or more of the following: power ramp-up step size, a first parameter, and a second parameter. Optionally, the other parameters in the configuration parameters besides the first offset value may adopt conventional configuration methods in related technologies, or they may adopt the configuration methods provided in the embodiments of this application.

[0389] The first offset value is used to determine the closed-loop power control parameters of Msg3 PUSCH. It is used to compensate for the difference in total power boost between the two resource types when the RO type corresponding to the first PRACH and the resource type of Msg3 PUSCH do not correspond. The first offset value can also be used to adjust the total transmission power, which is to some extent equivalent to adjusting the closed-loop power control parameters.

[0390] In some embodiments, the first offset value is used when the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission. That is, when the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission, the first offset value is not used to determine the transmission power of the first uplink channel.

[0391] In some embodiments, the first offset value may take one or more of the following values:

[0392] • The ninth value corresponds to the resource type of the uplink transmission resource corresponding to the first uplink channel being the first resource type and the RO type of the first PRACH transmission being the second RO type;

[0393] • The tenth value corresponds to the resource type of the uplink transmission resource corresponding to the first uplink channel being the second resource type and the RO type of the first PRACH transmission being the first RO type.

[0394] Optionally, the first offset value is configured by higher-layer signaling.

[0395] In one implementation, when the resource type of Msg3 PUSCH does not correspond to the RO type corresponding to the first PRACH or the first parameter, the closed-loop power control parameters of Msg3 PUSCH or the transmission power of Msg3 PUSCH are determined based on the first offset value; when the resource type of Msg3 PUSCH corresponds to the RO type corresponding to the first PRACH or the first parameter, the closed-loop power control parameters and / or transmission power of Msg3 PUSCH are not determined based on the first offset value.

[0396] In one implementation, at least one first offset value includes a ninth value and a tenth value. When the resource type of Msg3 PUSCH is SBFD and the RO type corresponding to the first PRACH or the first parameter is conventional RO, the closed-loop power control parameters of Msg3 PUSCH or the transmit power of Msg3 PUSCH are determined according to the ninth value. When the resource type of Msg3 PUSCH is non-SBFD and the RO type corresponding to the first PRACH or the first parameter is additional RO, the closed-loop power control parameters of Msg3 PUSCH or the transmit power of Msg3 PUSCH are determined according to the tenth value. When the resource type of Msg3 PUSCH corresponds to the RO type corresponding to the first PRACH or the first parameter, the closed-loop power control parameters and / or transmit power of Msg3 PUSCH are not determined according to the first offset value.

[0397] Optionally, the first offset value is indicated by the first control information.

[0398] One implementation: The first offset value is indicated by a first indication field. Alternatively, it can be understood that the first control information carries a first indication field, and the value of the first indication field is used to indicate the first offset value. The first indication field is an indication field independent of the Transmission Power Control Command Field (TPC command field). Specifically, assuming the first indication field includes X bits, through protocol agreement or higher-layer signaling configuration, the X bits of the first indication field correspond to 2... X A first offset value. After receiving the first control information, the terminal device can obtain the corresponding first offset value based on the value of the first indication field.

[0399] One implementation: The first offset value is indicated by an extended transmission power control command field. Alternatively, it can be understood that the first control information carries an extended transmission power control command field, the value of which is used to indicate the first offset value. One implementation involves updating the transmission power control command table, the update method including at least one of the following: 1) expanding the power range that the transmission power control command can indicate, for example, increasing the difference between the maximum and minimum values ​​in the transmission power control command table; 2) increasing the number of rows in the transmission power control command table, for example, from 8 rows to 16 rows, and correspondingly increasing the transmission power control command field from 3 bits to 4 bits. After receiving the first control information, the terminal device can obtain the corresponding first offset value based on the value of the extended transmission power control command field.

[0400] Examples of extended transmission power control commands are shown in Table 12 below:

[0401] Table 12

[0402] At this point, the first offset value is implicit in the transmission power control command and may not appear as a separate variable; that is, it is achieved by enhancing the transmission power control command.

[0403] The aforementioned methods for determining the transmission power of the first uplink channel can be implemented individually or in combination, and this application embodiment does not limit this. For example, the above methods two and three can be implemented in combination, that is, the configuration parameters include at least the first parameter and the second parameter, and the terminal device determines the open-loop power control parameters based on the first parameter and the second parameter.

[0404] It should be noted that the above-mentioned uplink channel transmission method and transmission power determination method can be combined to implement a new embodiment.

[0405] Figure 26 illustrates a combined flowchart of an uplink channel transmission method and a transmission power determination method provided in an exemplary embodiment of this application. The method is jointly executed by a terminal device and a network device. The uplink channel includes the PUSCH corresponding to message 3. The method includes:

[0406] Step 21: The network device sends configuration parameters to the terminal device, and the terminal device receives the configuration parameters sent by the network device;

[0407] This configuration parameter is configured by higher-layer signaling. It is used to determine the transmit power or transmit power parameters of the first uplink channel.

[0408] The configuration parameters include one or more of the following: power ramp-up step size, first parameter, second parameter, and first offset value.

[0409] Step 22: The terminal device sends message 1 to the network device, and the network device receives message 1 sent by the terminal device;

[0410] The RO type of message 1 includes: first RO type and / or second RO type. See the embodiments described in section 2 above.

[0411] Step 23: The network device sends message 2 to the terminal device, and the terminal device receives message 2 sent by the network device;

[0412] Message 2 carries a RAR, which is used to schedule the PUSCH corresponding to message 3.

[0413] Step 24: The terminal device determines the transmission power or transmission power parameters of the PUSCH corresponding to message 3;

[0414] Optionally, the terminal device determines the transmit power or transmit power parameters of the first uplink channel based on its own capabilities. See the embodiment shown in step 620 above.

[0415] Optionally, the terminal device determines the transmit power or transmit power parameters of the first uplink channel based on the received configuration parameters. See Methods 1 to 4 above.

[0416] Step 25: The terminal device sends message 3 to the network device, and the network device receives message 3 sent by the terminal device;

[0417] The resource types used to transmit the PUSCH corresponding to message 3 include: a first resource type and / or a second resource type. See the embodiment described in section 1 above.

[0418] In some embodiments, the RO type of message 1 corresponds to the resource type of the PUSCH used to transmit message 3.

[0419] Optionally, if the RO type of message 1 is the first RO type, then the resource type used to transmit the PUSCH corresponding to message 3 is the first resource type.

[0420] Optionally, if the RO type of message 1 is the second RO type, then the resource type used to transmit the PUSCH corresponding to message 3 is the second resource type.

[0421] Step 26: The network device sends message 4 to the terminal device, and the terminal device receives message 4 sent by the network device.

[0422] Figure 27 illustrates a combined flowchart of an uplink channel transmission method and a transmission power determination method provided in an exemplary embodiment of this application. This method is jointly executed by a terminal device and a network device. The method steps are essentially the same as those in the embodiment shown in Figure 26, except that the first offset value is not sent from the network device to the terminal device via higher-layer signaling, but is instead carried in message 2 and indicated to the terminal device.

[0423] In some embodiments, corresponding to Method 1 above, the configuration parameters include at least a power ramp-up step size. The terminal device determines the first power ramp-up based on the power ramp-up step size, as described in the embodiment of Method 1 above. Further, the method by which the terminal device determines the transmission power of the first uplink channel based on the first power ramp-up is described in Formulas 1 and 4 above. The parameters other than the first power ramp-up can use conventional parameter values ​​from related technologies.

[0424] In some embodiments, corresponding to Method 2 above, the configuration parameters include at least a first parameter. The terminal device determines the open-loop power control parameters based on the first parameter, and then further determines the transmission power of the first uplink channel according to Formula 1 and Formula 2 above. The other parameters besides the first parameter can adopt conventional parameter values ​​from related technologies.

[0425] In some embodiments, corresponding to Method 3 above, the configuration parameters include at least the second parameter. The terminal device determines the open-loop power control parameters based on the second parameter, and then further determines the transmission power of the first uplink channel according to Formula 1 and Formula 2 above. The other parameters besides the second parameter can use conventional parameter values ​​from related technologies.

[0426] In some embodiments, corresponding to Method 4 above, the configuration parameters include at least a first offset value. The terminal device determines the closed-loop power control parameters based on the first offset value, and then further determines the transmission power of the first uplink channel according to Formula 1 and Formula 2 above. The other parameters besides the first offset value can adopt conventional parameter values ​​from related technologies.

[0427] Figure 28 illustrates a combined flowchart of an uplink channel transmission method and a transmission power determination method provided in an exemplary embodiment of this application. The method is jointly executed by a terminal device and a network device. The uplink channel includes the PUCCH corresponding to message 4. The method includes:

[0428] Step 31: The network device sends configuration parameters to the terminal device, and the terminal device receives the configuration parameters sent by the network device;

[0429] This configuration parameter is configured by higher-layer signaling. It is used to determine the transmit power or transmit power parameters of the first uplink channel.

[0430] Configuration parameters include open-loop power control parameters and / or the first offset value.

[0431] In some embodiments, the open-loop power control parameter can take at least two values: one corresponding to a first RO type or a first resource type, and the other corresponding to a second RO type or a second resource type.

[0432] Step 32: The terminal device sends message 1 to the network device, and the network device receives message 1 sent by the terminal device;

[0433] The RO type of message 1 includes: first RO type and / or second RO type. See the embodiments described in section 2 above.

[0434] Step 33: The network device sends message 2 to the terminal device, and the terminal device receives message 2 sent by the network device;

[0435] Step 34: The terminal device sends message 3 to the network device, and the network device receives message 3 sent by the terminal device;

[0436] Step 35: The network device sends the first control information to the terminal device, and the terminal device receives the first control information sent by the network device;

[0437] For example, the first control information includes DCI. The DCI is used to schedule the PUCCH corresponding to message 4.

[0438] Step 36: The network device sends message 4 to the terminal device, and the terminal device receives message 4 sent by the network device;

[0439] Step 37: The terminal device determines the transmission power or transmission power parameters of the PUCCH corresponding to message 4;

[0440] Optionally, the terminal device determines the transmit power or transmit power parameters of the first uplink channel based on its own capabilities. See the embodiment shown in step 620 above.

[0441] Optionally, the terminal device determines the transmit power or transmit power parameters of the first uplink channel based on the received configuration parameters. See Methods 1 to 4 above.

[0442] The formula used to determine the transmission power or transmission power parameters of the PUCCH corresponding to message 4 is similar to the formula used to determine the transmission power or transmission power parameters of the PUSCH corresponding to message 3. Refer to the description in relevant protocol 38.213; it will not be repeated here.

[0443] Step 38: The terminal device sends the PUCCH corresponding to message 4 to the network device, and the network device receives the PUCCH corresponding to message 4 sent by the terminal device.

[0444] The resource types used to transmit the PUCCH corresponding to message 4 include: a first resource type and / or a second resource type. See the embodiment described in section 1 above.

[0445] In some embodiments, the RO type of message 1 corresponds to the resource type of the PUCCH used to transmit message 4.

[0446] Optionally, if the RO type of message 1 is the first RO type, then the resource type used to transmit the PUCCH corresponding to message 4 is the first resource type. Optionally, if the RO type of message 1 is the second RO type, then the resource type used to transmit the PUCCH corresponding to message 4 is the second resource type.

[0447] Figure 29 illustrates a combined flowchart of an uplink channel transmission method and a transmission power determination method provided in an exemplary embodiment of this application. This method is jointly executed by a terminal device and a network device. The method steps are essentially the same as those in the embodiment shown in Figure 28, except that the first offset value is not sent from the network device to the terminal device via higher-layer signaling, but is instead carried in the first control information and indicated to the terminal device.

[0448] Figure 30 shows a structural block diagram of a terminal device provided in an exemplary embodiment of this application. The terminal device includes a transmitting module 1110.

[0449] The transmitting module 1110 is used to transmit the first uplink channel, which is related to the random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0450] In some embodiments, the random access procedure includes the four-step random access shown in FIG1 and / or the two-step random access shown in FIG2.

[0451] For the four-step random access process, the first uplink channel includes: the PUSCH corresponding to message 3, and / or the Physical Uplink Control Channel (PUCCH) corresponding to message 4.

[0452] For a two-step random access procedure, the first uplink channel includes the PUCCH corresponding to message B.

[0453] This application mainly uses a four-step random access process as an example for illustration.

[0454] In some embodiments, the first PRACH transmission is the most recent PRACH transmission during the random access process. Alternatively, it can be understood as follows: if the terminal device determines the uplink transmission resource corresponding to the first uplink channel at a first moment, then the first PRACH transmission is the most recent PRACH transmission during the random access process relative to that first moment.

[0455] In some embodiments, the first PRACH transmission is the PRACH transmission corresponding to the first control information during random access. The first control information is sent by the network device to the terminal device, and is used to schedule the uplink transmission corresponding to the first uplink channel. After receiving the first control information, the terminal device determines the uplink transmission resources corresponding to the first uplink channel based on the first control information.

[0456] The implementation methods for resource types are described in Section 1 above. The implementation methods for RO types are described in Section 2 above. The implementation methods corresponding to resource types and RO types are described in Section 3 above.

[0457] When the first uplink channel is the PUSCH corresponding to message 3, the terminal device further includes a receiving module 1120. The receiving module 1120 is used to receive first control information, which is used to schedule the first uplink channel. See the description in section 4 above.

[0458] When the first uplink channel is the PUCCH corresponding to message 4, the terminal device further includes a determination module 1130. The determination module 1130 is used to determine the uplink transmission resource corresponding to the first uplink channel based on the RO type corresponding to the first PUCCH transmission. See the description in section 5 above.

[0459] It should be noted that the content described in the previous embodiments of the uplink channel transmission methods executed by the terminal device is applicable to the terminal device shown in Figure 30. For details not described in detail in this embodiment, please refer to the above embodiments, which will not be repeated here.

[0460] Figure 31 shows a structural block diagram of a terminal device provided in an exemplary embodiment of this application. The terminal device includes a determination module 1210.

[0461] The determining module 1210 is used to determine the transmit power or transmit power parameters of the first uplink channel, which is related to the random access procedure. The RO type of the first PRACH transmission in the random access procedure is either the first RO type or the second RO type. See step 620 above.

[0462] The terminal device also includes a receiving module 1220. The receiving module 1220 is used to receive configuration parameters, which are used to determine the transmission power or transmission power parameters of the first uplink channel. The first uplink channel is related to the random access procedure, and the RO type of the first PRACH transmission in the random access procedure is either the first RO type or the second RO type.

[0463] In some embodiments, the configuration parameters include a first parameter and a second parameter, and the transmit power parameters include open-loop power control parameters. The open-loop power control parameters of the first uplink channel are determined based on the first parameter and the second parameter, whereby the first parameter indicates the target received power of the random access preamble, and the second parameter indicates the offset between the open-loop power control parameters and the first parameter.

[0464] In some embodiments, the configuration parameters include a first offset value, and the transmit power parameters include closed-loop power control parameters. The transmit power or closed-loop power control parameters of the first uplink channel are determined based on the first offset value.

[0465] It should be noted that the methods for determining the transmission power executed by the terminal device described in the preceding embodiments are all applicable to the terminal device shown in Figure 31. For details not elaborated in this embodiment, please refer to the embodiments above; they will not be repeated here.

[0466] Figure 32 shows a structural block diagram of a network device provided in an exemplary embodiment of this application. The network device includes a receiving module 1310.

[0467] The receiving module 1310 and the transmitting module 1410 receive the first uplink channel. The first uplink channel is related to the random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0468] In some embodiments, the random access procedure includes the four-step random access shown in FIG1 and / or the two-step random access shown in FIG2.

[0469] For the four-step random access process, the first uplink channel includes: the PUSCH corresponding to message 3, and / or the Physical Uplink Control Channel (PUCCH) corresponding to message 4.

[0470] For a two-step random access procedure, the first uplink channel includes the PUCCH corresponding to message B.

[0471] This application mainly uses a four-step random access process as an example for illustration.

[0472] In some embodiments, the first PRACH transmission is the most recent PRACH transmission during the random access process. Alternatively, it can be understood as follows: if the terminal device determines the uplink transmission resource corresponding to the first uplink channel at a first moment, then the first PRACH transmission is the most recent PRACH transmission during the random access process relative to that first moment.

[0473] In some embodiments, the first PRACH transmission is the PRACH transmission corresponding to the first control information during random access. The first control information is sent by the network device to the terminal device, and is used to schedule the uplink transmission corresponding to the first uplink channel. After receiving the first control information, the terminal device determines the uplink transmission resources corresponding to the first uplink channel based on the first control information.

[0474] The implementation methods for resource types are described in Section 1 above. The implementation methods for RO types are described in Section 2 above. The implementation methods corresponding to resource types and RO types are described in Section 3 above.

[0475] When the first uplink channel is the PUSCH corresponding to message 3, the terminal device further includes a sending module 1320. The sending module 1320 is used to send first control information, which is used to schedule the first uplink channel. See the description in section 4 above.

[0476] It should be noted that the content described in the previous embodiments of the uplink channel transmission methods performed by the network device is applicable to the network device shown in Figure 32. For details not described in detail in this embodiment, please refer to the above embodiments, which will not be repeated here.

[0477] Figure 33 shows a structural block diagram of a network device provided in an exemplary embodiment of this application, the network device including a transmitting module 1410.

[0478] The transmitting module 1410 is used to transmit configuration parameters, which are used to determine the transmission power or transmission power parameters of the first uplink channel. The first uplink channel is related to the random access procedure, and the RO type of the first PRACH transmission in the random access procedure is either the first RO type or the second RO type.

[0479] In some embodiments, the configuration parameters include a first parameter and a second parameter, and the transmit power parameters include open-loop power control parameters. The open-loop power control parameters of the first uplink channel are determined based on the first parameter and the second parameter, whereby the first parameter indicates the target received power of the random access preamble, and the second parameter indicates the offset between the open-loop power control parameters and the first parameter.

[0480] In some embodiments, the configuration parameters include a first offset value, and the transmit power parameters include closed-loop power control parameters. The transmit power or closed-loop power control parameters of the first uplink channel are determined based on the first offset value.

[0481] It should be noted that the methods for determining the transmission power executed by the terminal device described in the preceding embodiments are all applicable to the terminal device shown in Figure 33. For details not elaborated in this embodiment, please refer to the embodiments above; they will not be repeated here.

[0482] Figure 34 shows a schematic diagram of a communication device provided in one embodiment of this application. This communication device can optionally be implemented as a terminal device or a network device. The communication device may include: a processor 901, a receiver 902, a transmitter 903, a memory 904, and a bus 905.

[0483] The processor 901 includes one or more processing cores. The processor 901 executes various functional applications and information processing by running software programs and modules.

[0484] In some embodiments, when the communication device is implemented as a terminal device, the processor 901 is used to determine the transmission power or transmission power parameters of the first uplink channel, the first uplink channel being related to the random access procedure, and the RO type of the first PRACH transmission in the random access procedure being either the first RO type or the second RO type.

[0485] The receiver 902 and the transmitter 903 can be implemented as a transceiver 906, which can be a communication chip.

[0486] In some embodiments, when the communication device is implemented as a terminal device, the transmitter 903 is used to transmit a first uplink channel, which is related to a random access procedure, and the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0487] In some embodiments, when the communication device is implemented as a terminal device, the receiver 902 is used to receive configuration parameters, which are used to determine the transmission power or transmission power parameters of the first uplink channel. The first uplink channel is related to the random access procedure, and the RO type of the first PRACH transmission in the random access procedure is either the first RO type or the second RO type.

[0488] In some embodiments, when the communication device is implemented as a network device, the receiver 902 is used to receive a first uplink channel, which is related to a random access procedure, and the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0489] In some embodiments, where the communication device is implemented as a network device, the transmitter 903 is used to transmit configuration parameters to determine the transmission power or transmission power parameters of the first uplink channel, which is related to the random access procedure. The RO type of the first PRACH transmission in the random access procedure is either the first RO type or the second RO type.

[0490] The memory 904 is connected to the processor 901 via a bus 905. The memory 904 can be used to store computer programs, and the processor 901 uses to execute the computer programs. Furthermore, the memory 904 can be implemented using any type of volatile or non-volatile storage device or a combination thereof. Volatile or non-volatile storage devices include, but are not limited to: RAM (Random-Access Memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other solid-state storage technologies, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc) or other optical storage, magnetic tape cassettes, magnetic tape, disk storage, or other magnetic storage devices.

[0491] This application also provides a computer-readable storage medium storing a computer program. The computer program is used by the processor of a communication device to implement the various steps in the above-described uplink channel transmission method. In some embodiments, the computer-readable storage medium may include ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives), or optical disc, etc. The random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0492] This application also provides a chip, which includes programmable logic circuitry and / or program instructions. When the chip is run on a terminal device, it is used to implement the various steps in the uplink channel transmission method executed by the terminal device described above. In some embodiments, the chip is used to transmit a first uplink channel, which is related to a random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0493] This application also provides a chip, which includes programmable logic circuitry and / or program instructions. When the chip is run on a terminal device, it is used to implement the various steps in the method for determining the transmission power executed by the terminal device described above. In some embodiments, the chip is used to determine the transmission power or transmission power parameters of a first uplink channel, which is related to a random access procedure. The RO type of the first PRACH transmission in the random access procedure is either a first RO type or a second RO type.

[0494] This application also provides a chip, which includes programmable logic circuitry and / or program instructions. When the chip is run on a network device, it is used to implement the various steps in the uplink channel transmission method executed by the network device described above. In some embodiments, the chip is used to receive a first uplink channel, which is related to a random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure.

[0495] This application also provides a chip, which includes programmable logic circuitry and / or program instructions. When the chip is run on a network device, it is used to implement the various steps in the method for determining the transmit power executed by the network device described above. In some embodiments, the chip is used to transmit configuration parameters, which are used to determine the transmit power or transmit power parameters of a first uplink channel, the first uplink channel being related to a random access procedure. The RO type of the first PRACH transmission in the random access procedure is either a first RO type or a second RO type.

[0496] This application also provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. The processor or transceiver of a terminal device reads and executes the computer instructions from the computer-readable storage medium to implement the various steps in the uplink channel transmission method and / or transmission power determination method executed by the terminal device.

[0497] This application also provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. The processor or transceiver of a network device reads and executes the computer instructions from the computer-readable storage medium to implement the various steps in the uplink channel transmission method and / or transmission power determination method executed by the network device.

[0498] Those skilled in the art will recognize that the functions described in the embodiments of this application in one or more of the above examples can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0499] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

A method for transmitting an uplink channel, characterized in that, The method is executed by a terminal device, and the method includes: A first uplink channel is transmitted. The first uplink channel is related to the random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the random access timing (RO) type in which the first physical random access channel (PRACH) transmission occurs during the random access procedure. The method according to claim 1, characterized in that, The resource types include: The first resource type includes time-domain units configured with sub-bands, or time-domain units configured with said sub-bands in the first set of time-domain units; The second resource type includes time-domain units that are not configured with the sub-band, or time-domain units in the second set of time-domain units that are not configured with the sub-band. The subband includes an uplink subband and / or a downlink subband, the first time domain unit set includes a downlink time domain unit and / or a flexible time domain unit, and the second time domain unit set includes an uplink time domain unit and / or a flexible time domain unit. The method according to claim 1 or 2, characterized in that, The RO types include: The first type of RO includes ROs related to sub-band full-duplex; The second type of RO includes ROs that are not related to subband full-duplex. The method according to claim 3, characterized in that, The ROs associated with subband full-duplex include: ROs in the time-domain units configured in the first time-domain unit set; and / or, The ROs unrelated to subband full-duplex include: ROs in the uplink time domain unit, and / or ROs in the flexible time domain unit; The subband includes uplink subband and / or downlink subband, and the first time domain unit set includes downlink time domain unit and / or flexible time domain unit. The method according to claim 3, characterized in that, The ROs associated with subband full-duplex include: the ROs configured by the first random access configuration; and / or, The ROs that are not related to subband full-duplex include: the ROs configured by the second random access configuration. The method according to any one of claims 1 to 5, characterized in that, The resource type corresponds to the RO type, including: The resource type is a first resource type, the RO type is a first RO type; and / or, The resource type is a second resource type, and the RO type is a second RO type. The method according to claim 6, characterized in that, The RO type is the first RO type, including: All PRACH transmissions in the random access process belong to the first RO type, and the first PRACH transmission is at least one of all PRACH transmissions; and / or, In the random access process, the RO type of the PRACH transmission in the first PRACH transmission set is the second RO type, the RO type of the PRACH transmission in the second PRACH transmission set is the first RO type, the first PRACH transmission set is before the second PRACH transmission set, and the first PRACH transmission is at least one of the second PRACH transmission set. The method according to claim 6, characterized in that, The RO type is a second RO type, including: All PRACH transmissions in the random access process belong to the second RO type, and the first PRACH transmission is at least one of all PRACH transmissions; and / or, In the random access process, the RO type of the PRACH transmission in the third PRACH transmission set is the first RO type, and the RO type of the PRACH transmission in the fourth PRACH transmission set is the second RO type. The third PRACH transmission set is prior to the fourth PRACH transmission set, and the first PRACH transmission is at least one of the fourth PRACH transmission sets. The method according to any one of claims 1 to 8, characterized in that, The first PRACH transmission includes: The most recent PRACH transmission from the first uplink channel during the random access process; and / or, During the random access process, the PRACH transmission corresponding to the first control information is used to schedule the first uplink channel. The method according to any one of claims 1 to 9, characterized in that, The method further includes: Receive first control information, the first control information being used to schedule the first uplink channel, the resource type of the uplink transmission resource corresponding to the first uplink channel corresponding to the RO type; or, it is not expected that the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type. The method according to claim 10, characterized in that, The first control information includes a time-domain resource indication field, which is used to determine the uplink transmission resources corresponding to the first uplink channel. The uplink transmission resources are determined based on the time-domain resource indication field and the time-domain unit corresponding to the RO type. The method according to any one of claims 1 to 11, characterized in that, The method further includes: It is not expected to receive the second control information, which is used to schedule the first uplink channel, and the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type. The method according to any one of claims 10 to 12, characterized in that, The resource type does not correspond to the RO type, including: The resource type is a first resource type, the RO type is a second RO type; and / or, The resource type is the second resource type, and the RO type is the first RO type. The method according to any one of claims 1 to 13, characterized in that, The first uplink channel includes the Physical Uplink Shared Channel (PUSCH) corresponding to message 3. A method for determining transmission power, characterized in that, The method is executed by a terminal device, and the method includes: Determine the transmit power or transmit power parameters of the first uplink channel, which is related to the random access procedure. The method according to claim 15, characterized in that, The transmit power of the first uplink channel is determined based on the first power ramp-up during the random access process. The first power ramp-up is the total power ramp-up from the first PRACH preamble transmission to the most recent PRACH preamble transmission. The method according to claim 16, characterized in that, The first power ramp-up is determined based on one or more of the following parameters: The first power ramp-up step size corresponds to the first RO type or the first resource type; The second power ramp-up step corresponds to the second RO type or the second resource type; The value of the power ramp-up counter. The method according to claim 17, characterized in that, When both the first PRACH preamble transmission and the most recent PRACH preamble transmission correspond to the first RO type, the first power ramp is determined based on the first power ramp step size and the value of the power ramp counter; and / or, When both the first PRACH preamble transmission and the most recent PRACH preamble transmission correspond to the second RO type, the first power ramp is determined based on the second power ramp step size and the value of the power ramp counter; and / or, When the first PRACH preamble transmission corresponds to the first RO type from the xth PRACH preamble transmission, and the (x+1)th PRACH preamble transmission corresponds to the second RO type from the most recent PRACH preamble transmission, the first power ramp is determined based on the first power ramp step size, the second power ramp step size, and the value of the power ramp counter, where x is a positive integer. The method according to claim 18, characterized in that, The first power ramp is equal to the sum of a first value and an offset value. The first value is determined based on the value of the power ramp counter and the second power ramp step size. The offset value is determined based on a second value and a third value. The second value is determined based on the difference between the first power ramp step size and the second power ramp step size. The third value is determined based on the value of the power ramp counter corresponding to the RO type conversion. The method according to claim 15, characterized in that, The transmission power parameters include open-loop power control parameters; The open-loop power control parameters of the first uplink channel are determined based on a first parameter and a second parameter. The first parameter is used to indicate the target received power of the random access preamble, and the second parameter is used to indicate the offset value between the open-loop power control parameters and the first parameter. The method according to claim 20, characterized in that, The first parameter can take one or more of the following values: The first value corresponds to the first RO type or the first resource type; The second value corresponds to the second RO type or the second resource type. The method according to claim 21, characterized in that, The first parameter is determined based on the resource type of the uplink transmission resources corresponding to the first uplink channel; or, The first parameter is determined based on the RO type of the first PRACH transmission. The method according to claim 22, characterized in that, When the resource type is the first resource type, the value of the first parameter is the first value; When the resource type is the second resource type, the value of the first parameter is the second value. The method according to claim 22, characterized in that, When the RO type is the first RO type, the value of the first parameter is the first value; When the RO type is the second RO type, the value of the first parameter is the second value. The method according to any one of claims 20 to 24, characterized in that, The second parameter can take one or more of the following values: The third value is used to ensure that the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission. The fourth value is used when the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission. The method according to any one of claims 20 to 24, characterized in that, The second parameter can take one or more of the following values: The fifth value is that the resource type of the uplink transmission resource corresponding to the first uplink channel is the first resource type, and the RO type of the first PRACH transmission is the first RO type. The sixth value is that the resource type of the uplink transmission resource corresponding to the first uplink channel is the second resource type, and the RO type of the first PRACH transmission is the second RO type. The seventh value is that the resource type of the uplink transmission resource corresponding to the first uplink channel is the first resource type, and the RO type of the first PRACH transmission is the second RO type. The eighth value is used for the resource type of the uplink transmission resource corresponding to the first uplink channel, which is the second resource type, and the RO type of the first PRACH transmission is the first RO type. The method according to claim 15, characterized in that, The transmission power parameters include closed-loop power parameters; The transmit power or the closed-loop power control parameter of the first uplink channel is determined based on the first offset value. The method according to claim 27, characterized in that, The first offset value can take one or more of the following values: The ninth value corresponds to the resource type of the uplink transmission resource corresponding to the first uplink channel being the first resource type and the RO type of the first PRACH transmission being the second RO type. The tenth value corresponds to the resource type of the uplink transmission resource corresponding to the first uplink channel being the second resource type and the RO type of the first PRACH transmission being the first RO type. The method according to claim 27 or 28, characterized in that, The first offset value is used because the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission. The method according to any one of claims 27 to 29, characterized in that, The first offset value is indicated by the first control information; The first control information carries a first indication field, the value of which is used to indicate the first offset value; or, The first control information carries an extended transmission power control command field, the value of which is used to indicate the first offset value. The first indication field is an indication field independent of the transmission power control command field. The method according to any one of claims 15 to 30, characterized in that, The RO type of the first PRACH transmission in the random access process is either the first RO type or the second RO type. The method according to claim 31, characterized in that, The first RO type includes ROs related to sub-band full-duplex; The second RO type includes ROs that are not related to subband full-duplex. The method according to claim 32, characterized in that, The ROs associated with subband full-duplex include: ROs in the time-domain units configured in the first time-domain unit set; and / or, The ROs unrelated to subband full-duplex include: ROs in the uplink time domain unit, and / or ROs in the flexible time domain unit; The subband includes uplink subband and / or downlink subband, and the first time domain unit set includes downlink time domain unit and / or flexible time domain unit. The method according to claim 32, characterized in that, The ROs associated with subband full-duplex include: the ROs configured by the first random access configuration; and / or, The ROs that are not related to subband full-duplex include: the ROs configured by the second random access configuration. The method according to any one of claims 31 to 34, characterized in that, The first PRACH transmission includes: The most recent PRACH transmission from the first uplink channel during the random access process; and / or, During the random access process, the PRACH transmission corresponding to the first control information is used to schedule the first uplink channel. The method according to any one of claims 15 to 35, characterized in that, The resource types of the uplink transmission resources corresponding to the first uplink channel include: The first resource type includes time-domain units configured with sub-bands, or time-domain units configured with said sub-bands in the first set of time-domain units; The second resource type includes time-domain units that are not configured with the sub-band, or time-domain units in the second set of time-domain units that are not configured with the sub-band. The subband includes an uplink subband and / or a downlink subband, the first time domain unit set includes a downlink time domain unit and / or a flexible time domain unit, and the second time domain unit set includes an uplink time domain unit and / or a flexible time domain unit. The method according to any one of claims 15 to 36, characterized in that, The first uplink channel includes: the PUSCH corresponding to message 3. A method for transmitting an uplink channel, characterized in that, The method is performed by a network device, and the method includes: Send first control information, which is used to schedule a first uplink channel. The first uplink channel is related to the random access procedure, and the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure. The method according to claim 38, characterized in that, The resource types include: The first resource type includes time-domain units configured with sub-bands, or time-domain units configured with said sub-bands in the first set of time-domain units; The second resource type includes time-domain units that are not configured with the sub-band, or time-domain units in the second set of time-domain units that are not configured with the sub-band. The subband includes an uplink subband and / or a downlink subband, the first time domain unit set includes a downlink time domain unit and / or a flexible time domain unit, and the second time domain unit set includes an uplink time domain unit and / or a flexible time domain unit. The method according to claim 38 or 39 is characterized in that, The RO types include: The first type of RO includes ROs related to sub-band full-duplex; The second type of RO includes ROs that are not related to subband full-duplex. The method according to claim 40, characterized in that, The ROs associated with subband full-duplex include: ROs in the time-domain units configured in the first time-domain unit set; and / or, The ROs unrelated to subband full-duplex include: ROs in the uplink time domain unit, and / or ROs in the flexible time domain unit; The subband includes an uplink subband and / or a downlink subband, and the first time domain unit set includes a downlink time domain unit and / or a flexible time domain unit. The method according to claim 40, characterized in that, The ROs associated with subband full-duplex include: the ROs configured by the first random access configuration; and / or, The ROs that are not related to subband full-duplex include: the ROs configured by the second random access configuration. The method according to any one of claims 38 to 42, characterized in that, The resource type corresponds to the RO type, including: The resource type is a first resource type, the RO type is a first RO type; and / or, The resource type is a second resource type, and the RO type is a second RO type. The method according to claim 43, characterized in that, The RO type is the first RO type, including: All PRACH transmissions in the random access process belong to the first RO type, and the first PRACH transmission is at least one of all PRACH transmissions; and / or, In the random access process, the RO type of the PRACH transmission in the first PRACH transmission set is the second RO type, the RO type of the PRACH transmission in the second PRACH transmission set is the first RO type, the first PRACH transmission set is before the second PRACH transmission set, and the first PRACH transmission is at least one of the second PRACH transmission set. The method according to claim 43, characterized in that, The RO type is a second RO type, including: All PRACH transmissions in the random access process belong to the second RO type, and the first PRACH transmission is at least one of all PRACH transmissions; and / or, In the random access process, the RO type of the PRACH transmission in the third PRACH transmission set is the first RO type, and the RO type of the PRACH transmission in the fourth PRACH transmission set is the second RO type. The third PRACH transmission set is prior to the fourth PRACH transmission set, and the first PRACH transmission is at least one of the fourth PRACH transmission sets. The method according to any one of claims 38 to 45, characterized in that, The first PRACH transmission includes: The most recent PRACH transmission from the first uplink channel during the random access process; and / or, During the random access process, the PRACH transmission corresponding to the first control information is used to schedule the first uplink channel. The method according to any one of claims 38 to 46, characterized in that, The first control information includes a time-domain resource indication field, which is used to determine the uplink transmission resources corresponding to the first uplink channel. The uplink transmission resources are determined based on the time-domain resource indication field and the time-domain unit corresponding to the RO type. The method according to any one of claims 38 to 47, characterized in that, The first uplink channel includes: the PUSCH corresponding to message 3. A method for determining transmission power, characterized in that, The method is performed by a network device, and the method includes: Send configuration parameters, which are used to determine the transmit power or transmit power parameters of the first uplink channel, which is related to the random access procedure. The method according to claim 49, characterized in that, The transmit power parameters include open-loop power control parameters, and the configuration parameters include a first parameter and a second parameter. The first parameter is used to indicate the target receive power of the random access preamble, and the second parameter is used to indicate the offset value between the open-loop power control parameters and the first parameter. The method according to claim 50, characterized in that, The first parameter can take one or more of the following values: The first value corresponds to the first RO type or the first resource type; The second value corresponds to the second RO type or the second resource type. The method according to claim 51, characterized in that, The first parameter corresponds to the resource type of the uplink transmission resource corresponding to the first uplink channel; or, The first parameter corresponds to the RO type in which the first PRACH transmission is located. The method according to claim 52, characterized in that, When the resource type is the first resource type, the value of the first parameter is the first value; When the resource type is the second resource type, the value of the first parameter is the second value. The method according to claim 52, characterized in that, When the RO type is the first RO type, the value of the first parameter is the first value; When the RO type is the second RO type, the value of the first parameter is the second value. The method according to any one of claims 50 to 54, characterized in that, The second parameter can take one or more of the following values: The third value is used to ensure that the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission. The fourth value is used when the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission. The method according to any one of claims 50 to 54, characterized in that, The second parameter can take one or more of the following values: The fifth value is that the resource type of the uplink transmission resource corresponding to the first uplink channel is the first resource type, and the RO type of the first PRACH transmission is the first RO type. The sixth value is that the resource type of the uplink transmission resource corresponding to the first uplink channel is the second resource type, and the RO type of the first PRACH transmission is the second RO type. The seventh value is that the resource type of the uplink transmission resource corresponding to the first uplink channel is the first resource type, and the RO type of the first PRACH transmission is the second RO type. The eighth value is used for the resource type of the uplink transmission resource corresponding to the first uplink channel, which is the second resource type, and the RO type of the first PRACH transmission is the first RO type. The method according to claim 49, characterized in that, The transmit power parameters include closed-loop power parameters, and the configuration parameters include a first offset value, which is used to determine the transmit power of the first uplink channel or the closed-loop power control parameters. The method according to claim 57, characterized in that, The first offset value can take one or more of the following values: The ninth value corresponds to the resource type of the uplink transmission resource corresponding to the first uplink channel being the first resource type and the RO type of the first PRACH transmission being the second RO type. The tenth value corresponds to the resource type of the uplink transmission resource corresponding to the first uplink channel being the second resource type and the RO type of the first PRACH transmission being the first RO type. The method according to claim 57 or 58 is characterized in that, The first offset value is used because the resource type of the uplink transmission resource corresponding to the first uplink channel does not correspond to the RO type of the first PRACH transmission. The method according to any one of claims 57 to 59, characterized in that, The first offset value is indicated by the first control information; The first control information carries a first indication field, the value of which is used to indicate the first offset value; or, The first control information carries an extended transmission power control command field, the value of which is used to indicate the first offset value. The first indication field is an indication field independent of the transmission power control command field. The method according to any one of claims 49 to 60, characterized in that, The RO type of the first PRACH transmission in the random access process is either the first RO type or the second RO type. The method according to claim 61, characterized in that, The first RO type includes ROs related to sub-band full-duplex; The second RO type includes ROs that are not related to subband full-duplex. The method according to claim 62, characterized in that, The ROs associated with subband full-duplex include: ROs on the subband in the time domain units configured with the subband in the first time domain unit set; and / or, The ROs unrelated to subband full-duplex include: ROs in the uplink time domain unit, and / or ROs in the flexible time domain unit; The subband includes uplink subband and / or downlink subband, and the first time domain unit set includes downlink time domain unit and / or flexible time domain unit. The method according to claim 62, characterized in that, The ROs associated with subband full-duplex include: the ROs configured by the first random access configuration; and / or, The ROs that are not related to subband full-duplex include: the ROs configured by the second random access configuration. The method according to any one of claims 61 to 64, characterized in that, The first PRACH transmission includes: The most recent PRACH transmission from the first uplink channel during the random access process; and / or, During the random access process, the PRACH transmission corresponding to the first control information is used to schedule the first uplink channel. The method according to any one of claims 49 to 65, characterized in that, The resource types of the uplink transmission resources corresponding to the first uplink channel include: The first resource type includes time-domain units configured with sub-bands, or time-domain units configured with said sub-bands in the first set of time-domain units; The second resource type includes time-domain units that are not configured with the sub-band, or time-domain units in the second set of time-domain units that are not configured with the sub-band. The subband includes an uplink subband and / or a downlink subband, the first time domain unit set includes a downlink time domain unit and / or a flexible time domain unit, and the second time domain unit set includes an uplink time domain unit and / or a flexible time domain unit. The method according to any one of claims 49 to 66, characterized in that, The first uplink channel includes: the PUSCH corresponding to message 3. A terminal device, characterized in that, The terminal device includes: The transmitting module is used to transmit a first uplink channel, which is related to the random access procedure. The resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the random access timing (RO) type of the first PRACH transmission in the random access procedure. A terminal device, characterized in that, The terminal device includes: The determination module is used to determine the transmission power or transmission power parameters of the first uplink channel, which is related to the random access procedure. A network device, characterized in that, The network device includes: The transmitting module is used to transmit first control information, which is used to schedule a first uplink channel. The first uplink channel is related to the random access procedure, and the resource type of the uplink transmission resource corresponding to the first uplink channel corresponds to the RO type of the first PRACH transmission in the random access procedure. A network device, characterized in that, The network device includes: The transmitting module is used to transmit configuration parameters, which are used to determine the transmit power or transmit power parameters of the first uplink channel, which is related to the random access procedure. A terminal device, characterized in that, The terminal device includes: processor; A transceiver connected to the processor; Memory for storing the executable instructions of the processor; The transceiver is configured to load and execute the executable instructions to implement the uplink channel transmission method as described in any one of claims 1 to 14. A terminal device, characterized in that, The terminal device includes: processor; A transceiver connected to the processor; Memory for storing the executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the method for determining the transmission power as described in any one of claims 15 to 37. A network device, characterized in that, The network device includes: processor; A transceiver connected to the processor; Memory for storing the executable instructions of the processor; The transceiver is configured to load and execute the executable instructions to implement the uplink channel transmission method as described in any one of claims 38 to 48. A network device, characterized in that, The network device includes: processor; A transceiver connected to the processor; Memory for storing the executable instructions of the processor; The transceiver is configured to load and execute the executable instructions to implement the method for determining the transmit power as described in any one of claims 49 to 67. A chip characterized in that, The chip includes programmable logic circuitry and / or program instructions. When the chip is running on a terminal device, the chip is used to implement the uplink channel transmission method as described in any one of claims 1 to 14. A chip characterized in that, The chip includes programmable logic circuitry and / or program instructions, and when the chip is running on a terminal device, the chip is used to implement the method for determining the transmission power as described in any one of claims 15 to 37. A chip characterized in that, The chip includes programmable logic circuitry and / or program instructions, and when the chip is running on a network device, the chip is used to implement the method for determining the transmission power as described in any one of claims 38 to 48. A chip characterized in that, The chip includes programmable logic circuitry and / or program instructions, and when the chip is running on a network device, the chip is used to implement the method for determining the transmission power as described in any one of claims 49 to 67. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which is loaded and executed by a processor to implement the uplink channel transmission method as described in any one of claims 1 to 14, or the transmission power determination method as described in any one of claims 15 to 37, or the transmission power determination method as described in any one of claims 38 to 48, or the transmission power determination method as described in any one of claims 49 to 67. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium. A processor retrieves the computer instructions from the computer-readable storage medium and executes the computer instructions to implement the uplink channel transmission method as described in any one of claims 1 to 14, or the transmission power determination method as described in any one of claims 15 to 37, or the transmission power determination method as described in any one of claims 38 to 48, or the transmission power determination method as described in any one of claims 49 to 67. A computer program, characterized in that, The computer program is executed by the processor of the terminal device to implement the uplink channel transmission method according to any one of claims 1 to 14, or the transmission power determination method according to any one of claims 15 to 37, or the transmission power determination method according to any one of claims 38 to 48, or the transmission power determination method according to any one of claims 49 to 67.

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