Methods and apparatus used in nodes for wireless communication

Abstract

This application provides a method and apparatus for use in a node for wireless communication. The first node for wireless communication includes: a first transmitter that transmits at least one uplink transmission during a first transmission; wherein any of the at least one uplink transmission is one of a plurality of candidate transmissions; the priority of any of the candidate transmissions is related to a first priority order; the first priority order is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first PRACH transmission, the first PRACH transmission belonging to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

Description

[0001] This application is a divisional application of application number 202380010769.9, filed on May 13, 2023, entitled "Method and apparatus used in a node for wireless communication". Technical Field

[0002] This application relates to the field of communication technology, and more specifically, to a method and apparatus used in a node for wireless communication. Background Technology

[0003] To enhance the coverage performance of the physical random access channel (PRACH), some communication systems (such as new radio (NR) systems) plan to introduce multiple PRACH transmissions.

[0004] In scenarios involving multiple PRACH transmissions, these transmissions may conflict with other transmissions, potentially leading to one or more of the following issues: how to reduce or avoid conflicts between multiple PRACH transmissions and other transmissions; the significant impact of conflicts between multiple PRACH transmissions and other transmissions on system performance (e.g., system resource consumption); increased random access latency due to conflicts between multiple PRACH transmissions and other transmissions; poor performance of multiple PRACH transmissions due to conflicts with other transmissions; or PRACH transmissions becoming a bottleneck in the coverage of the communication system due to conflicts with other transmissions. Summary of the Invention

[0005] This application provides a method and apparatus for use in a node for wireless communication. Various aspects of this application will be described below.

[0006] In a first aspect, a first node for wireless communication is provided, comprising: a first transmitter that transmits at least one uplink transmission at a first transmission time; wherein any of the at least one uplink transmission is one of a plurality of candidate transmissions; the priority of any of the plurality of candidate transmissions is related to a first priority order; the first priority order is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first PRACH transmission, the first PRACH transmission belonging to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0007] In one implementation, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the cell where the first PRACH transmission is located.

[0008] In one implementation, the priority of the first PRACH transmission is related to the carrier on which the first PRACH is located.

[0009] In one implementation, any two PRACH transmission groups among the plurality of PRACH transmission groups may contain different numbers of PRACH transmissions, and the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs.

[0010] In one implementation, the multiple PRACH transmission groups correspond to multiple priority indices, and the priority of the first PRACH transmission is related to the priority index of the PRACH transmission group to which the first PRACH transmission belongs.

[0011] In one implementation, the at least one uplink transmission includes the first PRACH transmission, and the first node further includes: a first receiver, which, in response to the first PRACH transmission, monitors a first random response within a first time window; the start of the first time window is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0012] In one implementation, the priority of the first PRACH transmission is related to the priority index of the first PRACH transmission, and the priority index of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0013] One implementation includes: a second receiver receiving a first configuration signaling, the first configuration signaling being used to determine a plurality of candidate orders, the first priority order being one of the plurality of candidate orders; and the PRACH transmission group to which the first PRACH transmission belongs being used to determine the first priority order from the plurality of candidate orders.

[0014] In one implementation, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; the plurality of candidate orders include a first candidate order and a second candidate order, wherein the first priority order is one of the first candidate order or the second candidate order; when the first PRACH transmission belongs to the first PRACH transmission group, the first priority order is the first candidate order; when the first PRACH transmission belongs to the second PRACH transmission group, the first priority order is the second candidate order.

[0015] In one implementation, the priority of the first PRACH transmission satisfies one or more of the following: the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Shared Channel (PUSCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Control Channel (PUCCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Sound Reference Signal (SRS) transmission.

[0016] As one implementation, the PUSCH transmission includes high-priority PUSCH transmission and low-priority PUSCH transmission, and the PUCCH transmission includes high-priority PUCCH transmission and low-priority PUCCH transmission. The priority of the first PRACH transmission satisfies one or more of the following: the first PRACH transmission has a higher priority than the high-priority PUSCH transmission; the first PRACH transmission has a higher priority than the high-priority PUCCH transmission; the first PRACH transmission has a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the high-priority PUSCH transmission but a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the high-priority PUCCH transmission but a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the low-priority PUCCH transmission.

[0017] In one implementation, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH belongs is the first PRACH transmission group, the priority of the first PRACH transmission is higher than the priority of any PRACH transmission in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH transmission belongs is the second PRACH transmission group, the priority of the first PRACH transmission is lower than the priority of any PRACH transmission in the first PRACH transmission group.

[0018] As one implementation, the first priority order is fixed or network-configured.

[0019] In one implementation, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0020] In one implementation, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

[0021] In a second aspect, a second node for wireless communication is provided, comprising: a first receiver that receives at least one uplink transmission, the at least one uplink transmission being transmitted during a first transmission; wherein any of the at least one uplink transmission is one of a plurality of candidate transmissions; the priority of any of the plurality of candidate transmissions is related to a first priority order; the first priority order is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first physical random access channel (PRACH) transmission, the first PRACH transmission belonging to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0022] In one implementation, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the cell where the first PRACH transmission is located.

[0023] In one implementation, the priority of the first PRACH transmission is related to the carrier on which the first PRACH is located.

[0024] In one implementation, any two PRACH transmission groups among the plurality of PRACH transmission groups may contain different numbers of PRACH transmissions, and the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs.

[0025] In one implementation, the multiple PRACH transmission groups correspond to multiple priority indices, and the priority of the first PRACH transmission is related to the priority index of the PRACH transmission group to which the first PRACH transmission belongs.

[0026] In one implementation, the at least one uplink transmission includes the first PRACH transmission, and the second node further includes: a first transmitter, which, in response to the first PRACH transmission, sends a first random response within a first time window; the start of the first time window is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0027] In one implementation, the priority of the first PRACH transmission is related to the priority index of the first PRACH transmission, and the priority index of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0028] One implementation includes: a second transmitter sending a first configuration signaling message, the first configuration signaling message being used to determine a plurality of candidate orders, the first priority order being one of the plurality of candidate orders; and the PRACH transmission group to which the first PRACH transmission belongs being used to determine the first priority order from the plurality of candidate orders.

[0029] In one implementation, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; the plurality of candidate orders include a first candidate order and a second candidate order, wherein the first priority order is one of the first candidate order or the second candidate order; when the first PRACH transmission belongs to the first PRACH transmission group, the first priority order is the first candidate order; when the first PRACH transmission belongs to the second PRACH transmission group, the first priority order is the second candidate order.

[0030] In one implementation, the priority of the first PRACH transmission satisfies one or more of the following: the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Shared Channel (PUSCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Control Channel (PUCCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Sound Reference Signal (SRS) transmission.

[0031] As one implementation, the PUSCH transmission includes high-priority PUSCH transmission and low-priority PUSCH transmission, and the PUCCH transmission includes high-priority PUCCH transmission and low-priority PUCCH transmission. The priority of the first PRACH transmission satisfies one or more of the following: the first PRACH transmission has a higher priority than the high-priority PUSCH transmission; the first PRACH transmission has a higher priority than the high-priority PUCCH transmission; the first PRACH transmission has a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the high-priority PUSCH transmission but a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the high-priority PUCCH transmission but a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the low-priority PUCCH transmission.

[0032] In one implementation, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH belongs is the first PRACH transmission group, the priority of the first PRACH transmission is higher than the priority of any PRACH transmission in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH transmission belongs is the second PRACH transmission group, the priority of the first PRACH transmission is lower than the priority of any PRACH transmission in the first PRACH transmission group.

[0033] As one implementation, the first priority order is fixed or network-configured.

[0034] In one implementation, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0035] In one implementation, the at least one uplink transmission is sent by the first node, and any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

[0036] Thirdly, a method for use in a first node of wireless communication is provided, comprising: transmitting at least one uplink transmission at a first transmission timing; wherein any of the at least one uplink transmission is one of a plurality of candidate transmissions; the priority of any of the plurality of candidate transmissions is related to a first priority order; the first priority order is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first physical random access channel (PRACH) transmission, the first PRACH transmission belonging to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0037] In one implementation, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the cell where the first PRACH transmission is located.

[0038] In one implementation, the priority of the first PRACH transmission is related to the carrier on which the first PRACH is located.

[0039] In one implementation, any two PRACH transmission groups among the plurality of PRACH transmission groups may contain different numbers of PRACH transmissions, and the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs.

[0040] In one implementation, the multiple PRACH transmission groups correspond to multiple priority indices, and the priority of the first PRACH transmission is related to the priority index of the PRACH transmission group to which the first PRACH transmission belongs.

[0041] In one implementation, the at least one uplink transmission includes the first PRACH transmission, and the method further includes: monitoring a first random response within a first time window as a response to the first PRACH transmission; the start of the first time window is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0042] In one implementation, the priority of the first PRACH transmission is related to the priority index of the first PRACH transmission, and the priority index of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0043] One implementation includes: receiving a first configuration signaling, the first configuration signaling being used to determine a plurality of candidate orders, the first priority order being one of the plurality of candidate orders; and the PRACH transmission group to which the first PRACH transmission belongs being used to determine the first priority order from the plurality of candidate orders.

[0044] In one implementation, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; the plurality of candidate orders include a first candidate order and a second candidate order, wherein the first priority order is one of the first candidate order or the second candidate order; when the first PRACH transmission belongs to the first PRACH transmission group, the first priority order is the first candidate order; when the first PRACH transmission belongs to the second PRACH transmission group, the first priority order is the second candidate order.

[0045] In one implementation, the priority of the first PRACH transmission satisfies one or more of the following: the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Shared Channel (PUSCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Control Channel (PUCCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Sound Reference Signal (SRS) transmission.

[0046] As one implementation, the PUSCH transmission includes high-priority PUSCH transmission and low-priority PUSCH transmission, and the PUCCH transmission includes high-priority PUCCH transmission and low-priority PUCCH transmission. The priority of the first PRACH transmission satisfies one or more of the following: the first PRACH transmission has a higher priority than the high-priority PUSCH transmission; the first PRACH transmission has a higher priority than the high-priority PUCCH transmission; the first PRACH transmission has a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the high-priority PUSCH transmission but a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the high-priority PUCCH transmission but a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the low-priority PUCCH transmission.

[0047] In one implementation, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH belongs is the first PRACH transmission group, the priority of the first PRACH transmission is higher than the priority of any PRACH transmission in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH transmission belongs is the second PRACH transmission group, the priority of the first PRACH transmission is lower than the priority of any PRACH transmission in the first PRACH transmission group.

[0048] As one implementation, the first priority order is fixed or network-configured.

[0049] In one implementation, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0050] In one implementation, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

[0051] Fourthly, a method is provided for use in a second node of wireless communication, comprising: receiving at least one uplink transmission, the at least one uplink transmission being transmitted at a first transmission time; wherein any one of the at least one uplink transmissions is one of a plurality of candidate transmissions; the priority of any one of the plurality of candidate transmissions is related to a first priority order; the first priority order is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first physical random access channel (PRACH) transmission, the first PRACH transmission belonging to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0052] In one implementation, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the cell where the first PRACH transmission is located.

[0053] In one implementation, the priority of the first PRACH transmission is related to the carrier on which the first PRACH is located.

[0054] In one implementation, any two PRACH transmission groups among the plurality of PRACH transmission groups may contain different numbers of PRACH transmissions, and the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs.

[0055] In one implementation, the multiple PRACH transmission groups correspond to multiple priority indices, and the priority of the first PRACH transmission is related to the priority index of the PRACH transmission group to which the first PRACH transmission belongs.

[0056] In one implementation, the at least one uplink transmission includes the first PRACH transmission, and the method further includes: sending a first random response within a first time window as a response to the first PRACH transmission; the start of the first time window is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0057] In one implementation, the priority of the first PRACH transmission is related to the priority index of the first PRACH transmission, and the priority index of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0058] One implementation includes: sending a first configuration signaling message, the first configuration signaling message being used to determine a plurality of candidate orders, the first priority order being one of the plurality of candidate orders; and the PRACH transmission group to which the first PRACH transmission belongs being used to determine the first priority order from the plurality of candidate orders.

[0059] In one implementation, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; the plurality of candidate orders include a first candidate order and a second candidate order, wherein the first priority order is one of the first candidate order or the second candidate order; when the first PRACH transmission belongs to the first PRACH transmission group, the first priority order is the first candidate order; when the first PRACH transmission belongs to the second PRACH transmission group, the first priority order is the second candidate order.

[0060] In one implementation, the priority of the first PRACH transmission satisfies one or more of the following: the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Shared Channel (PUSCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Control Channel (PUCCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Sound Reference Signal (SRS) transmission.

[0061] As one implementation, the PUSCH transmission includes high-priority PUSCH transmission and low-priority PUSCH transmission, and the PUCCH transmission includes high-priority PUCCH transmission and low-priority PUCCH transmission. The priority of the first PRACH transmission satisfies one or more of the following: the first PRACH transmission has a higher priority than the high-priority PUSCH transmission; the first PRACH transmission has a higher priority than the high-priority PUCCH transmission; the first PRACH transmission has a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the high-priority PUSCH transmission but a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the high-priority PUCCH transmission but a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the low-priority PUCCH transmission.

[0062] In one implementation, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH belongs is the first PRACH transmission group, the priority of the first PRACH transmission is higher than the priority of any PRACH transmission in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH transmission belongs is the second PRACH transmission group, the priority of the first PRACH transmission is lower than the priority of any PRACH transmission in the first PRACH transmission group.

[0063] As one implementation, the first priority order is fixed or network-configured.

[0064] In one implementation, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0065] In one implementation, the at least one uplink transmission is sent by the first node, and any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

[0066] Fifthly, a first node for wireless communication is provided, comprising a transceiver, a memory, and a processor, wherein the memory stores a program, the processor invokes the program in the memory, and controls the transceiver to receive or transmit signals to cause the first node to perform the method as described in any implementation of the third aspect.

[0067] In a sixth aspect, a second node for wireless communication is provided, comprising a transceiver, a memory, and a processor, wherein the memory stores a program, the processor invokes the program in the memory, and controls the transceiver to receive or transmit signals to cause the second node to perform the method as described in any implementation of the fourth aspect.

[0068] In a seventh aspect, embodiments of this application provide a communication system including the aforementioned first node and / or second node. In another possible design, the system may further include other devices that interact with the first node or second node as described in the embodiments of this application.

[0069] Eighthly, embodiments of this application provide a computer-readable storage medium storing a computer program that causes a computer to perform some or all of the steps in the methods described above.

[0070] Ninthly, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of the methods described in the foregoing aspects. In some implementations, the computer program product may be a software installation package.

[0071] In a tenth aspect, embodiments of this application provide a chip including a memory and a processor, the processor being able to call and run a computer program from the memory to implement some or all of the steps described in the methods of the foregoing aspects.

[0072] In this embodiment of the application, when the first node has multiple candidate transmissions to send, the first node can determine the priority of the first PRACH transmission among the multiple candidate transmissions according to the PRACH transmission group to which the first PRACH transmission belongs, which helps to avoid conflicts between the first PRACH transmission and other transmissions among the multiple candidate transmissions.

[0073] The methods and apparatus provided in this application for use in nodes for wireless communication are beneficial for optimizing solutions to conflicts between multiple PRACH transmissions and other transmissions.

[0074] The methods and apparatus provided in this application for use in nodes for wireless communication are beneficial in reducing the impact on system performance when multiple PRACH transmissions conflict with other transmissions.

[0075] The methods and apparatus provided in this application for use in nodes for wireless communication are beneficial for reducing random access delay when multiple PRACH transmissions conflict with other transmissions.

[0076] The methods and apparatus provided in this application for use in nodes for wireless communication are beneficial for improving the performance gain of multiple PRACH transmissions.

[0077] The methods and apparatus provided in this application for use in nodes for wireless communication are beneficial for increasing the coverage of communication systems.

[0078] The methods and apparatus provided in this application for use in nodes for wireless communication are beneficial to improving the utilization efficiency of random access resources. Attached Figure Description

[0079] Figure 1 This is a system architecture example diagram of a wireless communication system that can be applied to the embodiments of this application.

[0080] Figure 2 An example of multiple PRACH transmissions colliding with other transmissions.

[0081] Figure 3 This is a flowchart illustrating a method used in a first node for wireless communication, as provided in an embodiment of this application.

[0082] Figure 4 This is a flowchart illustrating a method used in a second node for wireless communication, as provided in an embodiment of this application.

[0083] Figure 5 This is a schematic diagram of the structure of a node used for wireless communication according to an embodiment of this application.

[0084] Figure 6 This is a schematic diagram of the structure of a node used for wireless communication, provided for another embodiment of this application.

[0085] Figure 7 A schematic structural diagram of the device provided in the embodiments of this application.

[0086] Figure 8 This is a schematic diagram of the hardware module of the communication device provided in an embodiment of this application. Detailed Implementation

[0087] Communication system architecture

[0088] Figure 1This is a system architecture example diagram of a wireless communication system 100 applicable to embodiments of this application. The wireless communication system 100 may include a network device 110 and a user equipment 120. The network device 110 may be a device that communicates with the user equipment 120. The network device 110 may provide communication coverage for a specific geographical area and may communicate with the user equipment 120 located within that coverage area.

[0089] Figure 1 An exemplary embodiment shows a network device and two user devices. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of user devices within its coverage area. This application embodiment does not limit this.

[0090] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0091] It should be understood that although the technical solutions of the embodiments of this application can be used for random access, they can also be used for beam failure recovery. Furthermore, the technical solutions of the embodiments of this application can be used for Type-1 random access procedure and Type-2 random access procedure. Furthermore, the technical solutions of the embodiments of this application can be used with a Uu interface and a PC5 interface. Furthermore, the technical solutions of the embodiments of this application can be used for single-carrier communication and multi-carrier communication. Furthermore, the technical solutions of the embodiments of this application can be used for multi-antenna communication and single-antenna communication. Furthermore, the technical solutions of the embodiments of this application can be used in scenarios involving user equipment and base stations, but they are also applicable to vehicle-to-everything (V2X) scenarios, communication scenarios between user equipment and relays, and communication scenarios between relays and base stations, achieving similar technical effects in user equipment and base station scenarios. Furthermore, the technical solutions of this application can be applied to various communication scenarios, such as enhanced mobile broadband (eMBB), ultra-reliable and low-latency communication (URLLC), and massive machine-type communication (mMTC). In addition, adopting a unified solution for different scenarios helps reduce hardware complexity and cost.

[0092] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as: 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation mobile communication systems, satellite communication systems, etc.

[0093] The user equipment in the embodiments of this application can also be referred to as terminal equipment, access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device. The user equipment in the embodiments of this application can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as handheld devices with wireless connectivity, vehicle-mounted devices, etc. The user equipment in the embodiments of this application can be a mobile phone, tablet, laptop, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in V2X or D2D, etc. For example, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0094] The network device in this application embodiment can be a device for communicating with user equipment. This network device can also be called an access network device or a radio access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects user equipment to a wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master MeNB, auxiliary SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or similar, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. Base stations can also be mobile switching centers, devices that perform base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, network-side devices in 6G networks, and devices that perform base station functions in future communication systems. Base stations can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0095] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0096] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0097] Network equipment and user equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network equipment and user equipment are located.

[0098] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

[0099] PRACH transmission coverage enhancement

[0100] The coverage performance of a communication system (such as an NR system) is an important factor that operators need to consider when deploying communication networks for commercial purposes. This is because the coverage performance of a communication system directly affects the service quality of the communication system and the operator's costs, such as the operator's capital expenditure (CAPEX) and operating expense (OPEX).

[0101] The coverage performance of a communication system varies depending on the frequency band it operates in. For example, compared to LTE systems, NR systems operate at higher frequencies (such as millimeter-wave bands), resulting in greater path loss and consequently, poorer coverage performance. Therefore, as communication systems support increasingly higher frequency bands, enhancing their coverage becomes a crucial issue that needs to be addressed.

[0102] In most real-world deployment scenarios, uplink coverage performance is a bottleneck for enhancing communication system coverage because user devices are generally less capable than network devices. Furthermore, with the development of communication technologies, uplink traffic is increasing in emerging vertical use cases, such as video uploading. In scenarios with high uplink traffic, how to enhance uplink coverage is a problem that needs further resolution.

[0103] In related technologies, there are already coverage enhancement solutions for certain uplinks. For example, NR release 17 (Rel-17) has designed coverage enhancement schemes for the Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), and message 3 (Msg3) in the random access procedure.

[0104] However, Rel-17 did not design a coverage enhancement scheme for PRACH. But PRACH transmission performance is crucial for many processes, including initial access and beam failure recovery. Therefore, enhancing PRACH coverage is also very important. Based on this, through the 3rd generation partnership project (3GPP) RP-221858, Rel-18 formally established the work item (WI) for "further NR coverage enhancements," with enhancing PRACH transmission coverage performance being one of the key topics of this work item.

[0105] One possible implementation is to use multiple PRACH transmissions to enhance PRACH coverage. That is, PRACH coverage enhancement can be achieved through repeated PRACH transmissions (e.g., sending a preamble multiple times within a PRACH). It should be noted that in this application, "multiple PRACH transmissions" can also be replaced with terms such as multiple PRACH transmissions, multiple PRACH sending, multiple PRACH sending, repeated PRACH transmissions, and Type-3 Random Access Procedure, etc., and the embodiments of this application are not limited in this regard. In other words, "multiple PRACH transmissions" mentioned in this application can be replaced with at least one of the following: multiple PRACH transmissions, multiple PRACH sending, multiple PRACH sending, repeated PRACH transmissions, repeated PRACH sending, and Type-3 Random Access Procedure.

[0106] In this application embodiment, multiple PRACH transmissions can refer to multiple PRACH transmissions using the same beam or multiple PRACH transmissions using different beams. Taking multiple PRACH transmissions using the same beam as an example, the 3GPP radio access network (RAN) 1#110bis-e conference has reached an agreement: PRACH timings (or RACH timings) that are at least located in different time instances can be used for multiple PRACH transmissions using the same beam. Alternatively, a Physical Random Access Channel (PRACHoccasion) group (ROG) can be used for multiple PRACH transmissions using the same beam.

[0107] Furthermore, the RAN1#110bis-e meeting further defined the number of multiple PRACH transmissions using the same beam (the number of PRACH transmissions / repetition factor), which can include at least 2, 4, and 8. In other words, a ROG can include 2, 4, or 8 valid Physical Random Access Channel occasions (ROs). The ROG will be further described below.

[0108] Physical Random Access Channel Timing Group

[0109] In some scenarios, the term ROG is introduced to indicate a set containing multiple ROs; therefore, ROG can also be called a "RO set". This application does not limit the name of ROG. For ease of description, this application is based on ROG. This application does not limit the name of the physical random access channel timing; for example, physical random access channel timing can also be called random access timing, or transmission timing, etc. For ease of description, this application is based on physical random access channel timing, and the physical random access channel timing mentioned in this application can be used interchangeably with random access timing and transmission timing.

[0110] As an example, ROG can be used for multiple PRACH transmissions employing the same beam.

[0111] As an example, an ROG may include multiple ROs corresponding to PRACH that use the same beam transmission.

[0112] As an example, it has also been discussed in some meetings (e.g., 3GPP RAN1#110bis-e) that ROs located in different time instances can be used for multiple PRACH transmissions using the same beam. That is, multiple ROs in a single ROG can be located in different time instances.

[0113] As an example, for a certain number of PRACH transmissions, a ROG includes valid ROs, which helps the certain number of PRACH transmissions pass through valid ROs.

[0114] As an example, all ROs in a ROG can be associated with a synchronization signal block (or synchronization signal / physical broadcast channel block, SS / PBCH block, SSB). For simplicity, the synchronization signal block will be referred to as SSB below, and it can be arbitrarily replaced with the SS / PBCH block. Of course, in this embodiment, a ROG can be associated with multiple SSBs.

[0115] As mentioned earlier, uplink transmissions can include various types, such as PUSCH transmissions, PUCCH transmissions, PRACH transmissions (e.g., single PRACH transmissions, multiple PRACH transmissions), and sounding reference signal (SRS) transmissions. In some cases, conflicts may occur between these multiple uplink transmissions. The following provides an example of situations where conflicts may arise between multiple uplink transmissions.

[0116] As an example, when multiple uplink transmissions overlap in the time domain, conflicts may occur between them. For instance, conflicts may occur when at least two of the following transmissions overlap in the time domain: PUSCH transmission, PUCCH transmission, single PRACH transmission, and SRS transmission.

[0117] As an example, when a user equipment allocates more power to multiple uplink transmissions at a transmission time than its maximum transmit power, it may cause multiple uplink transmissions to conflict.

[0118] As an example, conflicts may occur between multiple uplink transmissions due to reasons such as power allocation exceeding limits caused by dual connectivity, slot format determination, transmission timing of multiple uplink transmissions at the same time domain resource location (such as the same time slot), and too small gap between multiple uplink transmissions.

[0119] In the event of a conflict between multiple uplink transmissions, the user equipment may need to abandon sending part of the uplink transmission or reduce the transmit power of part of the uplink transmission at the time of the conflict. For example, the user equipment may need to abandon sending PRACH or reduce the transmit power of PRACH at the time of the conflict.

[0120] As one possible implementation, when at least two of the multiple uplink transmissions—including single PRACH transmission, PUSCH transmission, PUCCH transmission, and SRS transmission—collide, the user equipment can allocate power or perform uplink transmissions in the following descending priority order to ensure that the user equipment's total transmit power does not exceed its maximum transmit power. This descending priority order is shown below.

[0121] 1. PRACH transmission on the primary cell (PCell);

[0122] 2. PUCCH or PUSCH transport with a high-priority index (or even higher-priority index);

[0123] 3. PUCCH or PUSCH transmissions with the same priority index;

[0124] (1) A PUCCH transmission carrying one or more of the following: hybrid automatic repeat request-ACK (HARQ-ACK) information, scheduling request (SR), link recovery request (LRR), or a PUSCH transmission carrying HARQ-ACK information with the priority index.

[0125] (2) PUCCH transmission carrying channel state information (CSI), or PUSCH transmission carrying CSI;

[0126] (3) PUSCH transmission without HARQ-ACK information or CSI carrying the priority index, PUSCH transmission of Type-2 random access procedure, and PUSCH transmission on PCell.

[0127] 4. SRS transmission (aperiodic SRS has higher priority than semi-persistent SRS and / or periodic SRS), or PRACH transmission on non-PCell.

[0128] As can be seen from the above order, PRACH transmission on the PCell has the highest priority and will be transmitted first in the event of a conflict between multiple uplink transmissions. Next, high-priority PUCCH and PUSCH will be transmitted. Then, low-priority PUCCH and PUSCH will be transmitted. Finally, PRACH from SRS and non-PCells will be transmitted.

[0129] When multiple PUCCHs and / or PUSCHs have the same priority, PUCCHs carrying HARQ-ACK information, SR, or LRR can be transmitted first, or PUSCHs carrying HARQ-ACK information can be transmitted first; then PUCCHs carrying CSI or PUSCHs carrying CSI can be transmitted; finally, PUSCHs without HARQ-ACK information or CSI, PUSCHs with Type-2 random access procedures, and PUSCHs transmitted on PCells can be transmitted, etc.

[0130] However, the above solution addresses conflicts between single PRACH transmissions and other transmissions. For multiple PRACH transmissions, multiple PRACHs need to be sent on multiple ROs. Therefore, the probability of conflicts between multiple PRACH transmissions and other transmissions is higher when using multiple PRACH transmissions. The following section will discuss this further. Figure 2 This will be introduced.

[0131] Figure 2 An example of multiple PRACH transmissions colliding with other transmissions (such as other uplink transmissions). Figure 2 As shown, multiple PRACH transmissions may be transmitted on multiple ROs (RO#0 to RO#7 in the figure). On some of these ROs, conflicts may occur due to time-domain overlap with other uplink transmissions (other uplink transmission 1 in the figure); on some of these ROs, conflicts may occur due to the gap between other uplink transmissions (other uplink transmission 2 in the figure) being too small.

[0132] In summary, since multiple PRACH transmissions in a single random access attempt occupy multiple ROGs, especially some ROGs that include up to 8 ROs, the probability of multiple PRACH transmissions colliding with other transmissions is significantly increased, and a single random access attempt may collide with a variety of other transmissions.

[0133] In some cases, if the ROG (Resource Access Group) resources are network-configured, when multiple PRACH transmissions frequently conflict with other transmissions, the user equipment (UE) may abandon all or part of the PRACH transmissions. As a result, the UE may need to frequently occupy additional ROG resources to retransmit PRACHs for random access. Therefore, multiple PRACH transmissions result in more severe system resource consumption and increased UE access latency than single PRACH transmissions.

[0134] Furthermore, at least one PRACH transmission in a random access attempt may conflict with or overlap with a single PRACH transmission. In such cases, how the user equipment should avoid or resolve the conflict is also a problem that needs to be addressed.

[0135] In other words, in scenarios involving multiple PRACH transmissions, one or more of the following problems may occur: how should the user equipment handle conflicts between multiple PRACH transmissions and other transmissions; the significant impact of conflicts between multiple PRACH transmissions and other transmissions on system performance (such as system resource consumption); increased random access latency due to conflicts between multiple PRACH transmissions and other transmissions; poor performance of multiple PRACH transmissions; PRACH transmissions becoming a bottleneck in the coverage of the communication system; and low utilization efficiency of random access resources.

[0136] To address the aforementioned issues, embodiments of this application provide a method and apparatus for use in nodes for wireless communication. This method determines the priority of a first PRACH transmission among multiple candidate transmissions based on the PRACH transmission group to which the first PRACH transmission belongs. This may achieve one or more of the following objectives: optimizing solutions for conflicts between multiple PRACH transmissions and other transmissions; reducing the impact of conflicts between multiple PRACH transmissions and other transmissions on system performance; reducing random access latency when multiple PRACH transmissions conflict with other transmissions; improving the performance gain of multiple PRACH transmissions and increasing coverage; and improving the utilization efficiency of random access resources.

[0137] This application can be applied to scenarios involving multiple PRACH transmissions, meaning that multiple PRACH transmissions can be repeated to achieve PRACH coverage enhancement.

[0138] This application can be applied to various random access procedures. As one embodiment, this application can be applied to a four-step random access procedure. As another embodiment, this application can be applied to a two-step random access procedure. As one embodiment, this application can be applied to a contention-based random access procedure. As yet another embodiment, this application can be applied to a non-contention-based random access procedure.

[0139] This application can be applied to random access procedures initiated by different triggering methods. As one embodiment, this application can be applied to random access procedures triggered by physical downlink control channel (PDCCH) orders. As another embodiment, this application can be applied to random access procedures triggered by medium access control (MAC) entities. As yet another embodiment, this application can be applied to random access procedures triggered by radio resource control (RRC) events.

[0140] As an example, the multiple PRACH transmissions mentioned in this application may refer to multiple PRACH transmissions using the same beam, so as to obtain signal tonoise ratio (SNR) gain by repeating multiple PRACH transmissions on the same beam.

[0141] As an example, the multiple PRACH transmissions mentioned in this application may refer to multiple PRACH transmissions using different beams, in order to obtain diversity gain by repeatedly transmitting multiple PRACHs on different beams.

[0142] The methods and apparatus provided in this application are illustrated below through multiple embodiments or examples. It should be understood that, unless otherwise specified, the embodiments and features in the first node of this application can be applied to the second node, and vice versa. Unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0143] Figure 3 This is a flowchart illustrating a method used in a node for wireless communication according to an embodiment of this application. Figure 3 The method shown can be executed by the first node. A brief introduction to the first node follows.

[0144] As an example, the first node can be any type of node in the communication system capable of sending at least one uplink transmission.

[0145] As an example, the first node can be a user equipment; for example, the first node can be... Figure 1 User equipment 120 is shown.

[0146] As an example, the first node can be a network-controlled repeater (NCR).

[0147] As an example, the first node can be a relay, such as a relay terminal.

[0148] As one example, the first node may include a first transmitter.

[0149] As one embodiment, the first node may include one or more receivers. For example, the first node may include a first receiver and a second receiver.

[0150] The following is about Figure 3 The method shown will be introduced. See also Figure 3 , Figure 3 The method shown may include step S310.

[0151] In step S310, at least one uplink transmission is sent during the first transmission timing.

[0152] This application does not specifically limit the first transmission timing in its embodiments. For example, the first transmission timing can be a transmission timing at any time-domain resource location (such as a timeslot, symbol, etc.), at which the at least one uplink transmission can be sent. As one embodiment, the first transmission timing can be a PRACH transmission timing. As another embodiment, the first transmission timing can be both a PRACH transmission timing and a PUSCH transmission timing.

[0153] As one embodiment, the multiple uplink transmissions in the at least one uplink transmission are frequency division multiplexed.

[0154] As an example, the multiple uplink transmissions in the at least one uplink transmission are non-overlapping in the frequency domain, or the multiple uplink transmissions in the at least one uplink transmission are orthogonal in the frequency domain.

[0155] As an example, any one of the at least one uplink transmissions is one of a plurality of candidate transmissions.

[0156] This application does not specifically limit the multiple candidate transmissions. For example, the multiple candidate transmissions may include multiple uplink transmissions; or, the multiple candidate transmissions may include multiple uplink transmissions and sidelink transmissions, etc.

[0157] As an example, the plurality of candidate transmissions includes one or more of the following transmissions: PUSCH transmission, PUCCH transmission, PRACH transmission, and SRS transmission.

[0158] As an example, if the plurality of candidate transmissions includes a PRACH transmission, the PRACH transmission includes a single PRACH transmission and / or multiple PRACH transmissions.

[0159] As one embodiment, the plurality of candidate transmissions includes one or more of the following transmissions: PRACH transmissions belonging to a first PRACH transmission group, and PRACH transmissions belonging to a second PRACH transmission group. For example, the first PRACH transmission group includes one or more PRACH transmissions, the second PRACH transmission group includes one or more PRACH transmissions, and the plurality of candidate transmissions includes at least one PRACH transmission from both the one or more PRACH transmissions included in the first PRACH transmission group and at least one PRACH transmission from the one or more PRACH transmissions included in the second PRACH transmission group.

[0160] As one embodiment, the plurality of candidate transmissions may include, in addition to the PRACH transmissions belonging to the first PRACH transmission group and the PRACH transmissions belonging to the second PRACH transmission group, other PRACH transmissions. For example, the plurality of candidate transmissions may include one or more of the following transmissions: PRACH transmissions belonging to the first PRACH transmission group, PRACH transmissions belonging to the second PRACH transmission group, and PRACH transmissions belonging to the third PRACH transmission group.

[0161] As an example, the plurality of candidate transmissions includes one or more of the following transmissions: PRACH transmissions belonging to a first PRACH transmission group, PRACH transmissions belonging to a second PRACH transmission group, PUSCH transmissions, PUCCH transmissions, and SRS transmissions.

[0162] As an example, the priority of any candidate transmission among the plurality of candidate transmissions is related to a first priority order.

[0163] As one embodiment, the first priority order is used to allocate power to the at least one uplink transmission. For example, in the event that multiple candidate transmissions conflict at the first transmission timing, the first priority order is used to allocate power to the at least one uplink transmission to ensure that the power allocated to the at least one uplink transmission does not exceed the maximum transmit power of the first node, thereby helping to avoid conflicts between the multiple candidate transmissions at the first transmission timing.

[0164] As one embodiment, the first priority order is used to determine the at least one uplink transmission. For example, in the event that the plurality of candidate transmissions conflict at the first transmission timing, the priority order of the plurality of candidate transmissions is used to determine the at least one uplink transmission from the plurality of candidate transmissions so that the at least one uplink transmission can be sent at the first transmission timing, thereby helping to avoid the plurality of candidate transmissions conflicting at the first transmission timing.

[0165] As an example, the first priority order is used to determine the priority of any one of the plurality of candidate transmissions.

[0166] As an example, the first priority order is fixed. In other words, the first priority order is statically configured.

[0167] As an example, the first priority order is configured by the network.

[0168] For details regarding the first priority order, please refer to the following text, which will not be elaborated here.

[0169] As an example, the priority order of the plurality of candidate transmissions is used to allocate power to the at least one uplink transmission. For instance, if the plurality of candidate transmissions conflict at the first transmission timing, the priority order of the plurality of candidate transmissions is used to allocate power to the at least one uplink transmission to ensure that the power allocated to the at least one uplink transmission does not exceed the maximum transmit power of the first node, thereby helping to avoid conflicts between the plurality of candidate transmissions at the first transmission timing.

[0170] As one embodiment, the priority order of the plurality of candidate transmissions is used to determine the at least one uplink transmission. For example, in the event that the plurality of candidate transmissions conflict at the first transmission timing, the priority order of the plurality of candidate transmissions is used to determine the at least one uplink transmission from the plurality of candidate transmissions so that the at least one uplink transmission can be sent at the first transmission timing, thereby helping to avoid the plurality of candidate transmissions conflicting at the first transmission timing.

[0171] As one embodiment, the plurality of candidate transmissions includes a first PRACH transmission, which belongs to one of a plurality of PRACH transmission groups.

[0172] As an example, the first PRACH transmission is one of the plurality of candidate transmissions.

[0173] As an example, any one of the plurality of PRACH transport groups includes at least one PRACH transport.

[0174] As one embodiment, the plurality of PRACH transport groups include the first PRACH transport group and the second PRACH transport group.

[0175] As a sub-implementation of the above embodiments, the first PRACH transmission belongs to the first PRACH transmission group. As another sub-implementation, the first PRACH transmission belongs to the second PRACH transmission group.

[0176] As one embodiment, the plurality of PRACH transport groups include the first PRACH transport group, the second PRACH transport group, and the third PRACH transport group.

[0177] As a sub-implementation of the above embodiments, the first PRACH transmission belongs to the first PRACH transmission group. As another sub-implementation, the first PRACH transmission belongs to the second PRACH transmission group. As yet another sub-implementation, the first PRACH transmission belongs to the third PRACH transmission group.

[0178] This application does not specifically limit the method of dividing the multiple PRACH transmission groups. As one embodiment, the number of PRACH transmissions included in any PRACH transmission group among the multiple PRACH transmission groups may differ. However, this application is not limited to this; for example, the carriers of any PRACH transmission groups among the multiple PRACH transmission groups may be different.

[0179] More detailed information about the multiple PRACH transport groups can be found in the following description, but for the sake of brevity, it will not be elaborated here.

[0180] In this embodiment, the priority of the first PRACH transmission may be related to one or more factors, and this embodiment is not limited in this regard. It should be noted that the priority of the first PRACH transmission can also be understood as the priority of the first PRACH transmission among the multiple candidate transmissions, and the priority of the first PRACH transmission mentioned below and the priority of the first PRACH transmission among the multiple candidate transmissions can be used interchangeably.

[0181] As an example, the priority of the first PRACH transmission is related to at least one of the following three factors: the PRACH transmission group to which the first PRACH transmission belongs, the cell where the first PRACH transmission is located, and the carrier on which the first PRACH is located. This will be described below.

[0182] As an example, the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs. For example, if the PRACH transmission to which the first PRACH transmission belongs is the first PRACH transmission group, then the priority of the first PRACH transmission is related to the first PRACH transmission group.

[0183] In this embodiment, when a first node has multiple candidate transmissions to send, the first node can determine the priority of the first PRACH transmission among the multiple candidate transmissions based on the PRACH transmission group to which the first PRACH transmission belongs. This helps to avoid conflicts between the first PRACH transmission and other transmissions among the multiple candidate transmissions. Furthermore, this embodiment may achieve one or more of the following objectives: optimizing solutions for conflicts between multiple PRACH transmissions and other transmissions; reducing the impact of conflicts between multiple PRACH transmissions and other transmissions on system performance; reducing random access latency when multiple PRACH transmissions conflict with other transmissions; improving the performance gain of multiple PRACH transmissions and increasing coverage; and improving the efficiency of random access resource utilization.

[0184] As one embodiment, the priority of the first PRACH transmission is related to the cell in which the first PRACH transmission is located. For example, the priority of the first PRACH transmission is only related to the cell in which the first PRACH transmission is located; or, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the cell in which the first PRACH transmission is located; or, the priority of the first PRACH transmission is related to both the cell in which the first PRACH transmission is located and the carrier in which the first PRACH transmission is located.

[0185] As an example, the fact that the priority of the first PRACH transmission is related to the cell where the first PRACH transmission is located can mean that the cell where the first PRACH transmission is located is used to determine the priority of the first PRACH transmission, or that the priority of the first PRACH transmission is determined based on the cell where the first PRACH transmission is located.

[0186] As an example, the cell in which the first PRACH transmission occurs is the primary cell.

[0187] As one embodiment, the cell in which the first PRACH transmission occurs is a serving cell of a non-primary cell. For example, the cell in which the first PRACH transmission occurs is a serving cell of a primary or secondary cell. Alternatively, the cell in which the first PRACH transmission occurs is a serving cell of a secondary cell.

[0188] As an example, the plurality of candidate transmissions includes one or more of the following transmissions: PRACH transmissions belonging to the first PRACH transmission group on the primary cell, PRACH transmissions belonging to the second PRACH transmission group on the primary cell, PRACH transmissions belonging to the first PRACH transmission group on non-primary cells, PRACH transmissions belonging to the second PRACH transmission group on non-primary cells, PUSCH transmissions with a fourth priority index, PUCCH transmissions with a fourth priority index, PUSCH transmissions with a fifth priority index, PUCCH transmissions with a fifth priority index, and SRS transmissions.

[0189] As an example, the fourth priority index and the fifth priority index are not equal. For instance, the priority corresponding to the fourth priority index is higher than the priority corresponding to the fifth priority index. Further details regarding the fourth and fifth priority indexes can be found later.

[0190] As one embodiment, the priority of the first PRACH transmission is related to the carrier in which the first PRACH transmission is located. For example, the priority of the first PRACH transmission is only related to the carrier in which the first PRACH transmission is located; or, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the carrier in which the first PRACH transmission is located; or, the priority of the first PRACH transmission is related to the transmission group to which the first PRACH transmission belongs, the cell in which the first PRACH transmission is located, and the carrier in which the first PRACH transmission is located.

[0191] As an example, the fact that the priority of the first PRACH transmission is related to the carrier on which the first PRACH transmission is located can mean that the carrier on which the first PRACH transmission is located is used to determine the priority of the first PRACH transmission, or that the priority of the first PRACH transmission is determined based on the carrier on which the first PRACH transmission is located.

[0192] As a specific embodiment, the priority of the first PRACH transmission is related to the transmission group to which the first PRACH transmission belongs, the cell where the first PRACH transmission is located, and the carrier where the first PRACH transmission is located. Alternatively, the transmission group to which the first PRACH transmission belongs, the cell where the first PRACH transmission is located, and the carrier where the first PRACH transmission is located can be used together to determine the priority of the first PRACH; or the priority of the first PRACH transmission can be determined jointly based on the transmission group to which the first PRACH transmission belongs, the cell where the first PRACH transmission is located, and the carrier where the first PRACH transmission is located.

[0193] As mentioned earlier, the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs. As one embodiment, the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs.

[0194] As a sub-implementation of the above embodiments, if the plurality of PRACH transmission groups are divided according to the number of PRACH transmissions included in the PRACH transmission group, or if the number of PRACH transmissions included in any of the plurality of PRACH transmission groups is different, then the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH belongs. This can be understood as the priority of the first PRACH transmission being related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH belongs.

[0195] As one embodiment, the PRACH transmission group to which the first PRACH transmission belongs is used to determine the priority of the first PRACH transmission; in other words, the priority of the first PRACH transmission is determined based on the PRACH transmission group to which the first PRACH transmission belongs. For example, if the PRACH transmission group to which the first PRACH transmission belongs is the first PRACH transmission group, then the first PRACH transmission group is used to determine the priority of the first PRACH transmission.

[0196] As one embodiment, the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs is used to determine the priority of the first PRACH transmission.

[0197] As a sub-implementation of the above embodiments, if the plurality of PRACH transmission groups are divided according to the number of PRACH transmissions included in the PRACH transmission group, or if the number of PRACH transmissions included in any of the plurality of PRACH transmission groups is different, then the PRACH transmission group to which the first PRACH transmission belongs is used to determine the priority of the first PRACH transmission. This can be understood as the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs being used to determine the priority of the first PRACH transmission.

[0198] As an example, the priority of the first PRACH transmission being related to the PRACH transmission group to which the first PRACH transmission belongs may include or be replaced by: the priority of the first PRACH transmission being related to the priority index of the first PRACH transmission, and the priority index of the first PRACH transmission being related to the PRACH transmission group to which the first PRACH transmission belongs.

[0199] As an example, the priority of the first PRACH transmission being related to the priority index of the first PRACH transmission may include or be replaced by: the priority index of the first PRACH transmission being used to determine the priority of the first PRACH transmission, or the priority of the first PRACH transmission being determined based on the priority index of the first PRACH transmission.

[0200] As one embodiment, the priority index of the first PRACH transmission being related to the PRACH transmission group to which the first PRACH transmission belongs may include or be replaced by: the PRACH transmission group to which the first PRACH transmission belongs being used to determine the priority index of the first PRACH transmission, or the priority index of the first PRACH transmission being determined based on the PRACH transmission group to which the first PRACH transmission belongs.

[0201] As one embodiment, the priority index of the first PRACH transmission being related to the PRACH transmission group to which the first PRACH transmission belongs may include: the priority index of the first PRACH transmission being related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs; or, the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs being used to determine the priority index of the first PRACH transmission; or, the priority index of the first PRACH transmission being determined based on the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs.

[0202] As an example, the priority index of the first PRACH transmission is either a first priority index or a second priority index.

[0203] As an example, the first priority index is greater than the second priority index.

[0204] As an example, a PRACH transmission with the first priority index has a higher priority than a PRACH transmission with the second priority index. For instance, if the priority index of the first PRACH transmission is the first priority index, then the first PRACH transmission has a higher priority than other PRACH transmissions with the second priority index.

[0205] As an example, "PRACH transmission with the first priority index" is equivalent to the PRACH transmission having the first priority index as its priority index. For example, "first PRACH transmission with the first priority index" is equivalent to the first PRACH transmission having the first priority index as its priority index.

[0206] As an example, "PRACH transmission with the second priority index" is equivalent to the PRACH transmission having the second priority index as its priority index. Similarly, "other PRACH transmissions with the second priority index" is equivalent to the other PRACH transmissions having the second priority index as their priority index.

[0207] As an example, the first PRACH transmission belongs to the first PRACH transmission group, and the priority index of the first PRACH transmission is the first priority index.

[0208] As an example, the first PRACH transmission belongs to the second PRACH transmission group, and the priority index of the first PRACH transmission is the second priority index.

[0209] As an example, the priority index of the first PRACH transmission is one of a plurality of priority indices.

[0210] For example, the plurality of priority indices includes a first priority index and a second priority index, wherein the first priority index indicates high priority or higher priority, and the second priority index indicates low priority or lower priority. The priority index of the first PRACH transmission is either the first priority index or the second priority index.

[0211] Alternatively, the plurality of priority indices may include a first priority index, a second priority index, and a third priority index, wherein the first priority index indicates the highest priority, the second priority index indicates a higher priority, and the third priority index indicates a low or lowest priority. The priority index of the first PRACH transmission is one of the first priority index, the second priority index, and the third priority index.

[0212] As an example, the plurality of candidate transmissions includes one or more of the following transmissions: a PRACH transmission belonging to a first PRACH transmission group, a PRACH transmission belonging to a second PRACH transmission group, a PUSCH transmission with a fourth priority index, a PUCCH transmission with a fourth priority index, a PUSCH transmission with a fifth priority index, a PUCCH transmission with a fifth priority index, and an SRS transmission.

[0213] As an example, the fourth priority index is a positive integer.

[0214] As an example, the fifth priority index is a non-negative integer.

[0215] As an example, the fourth priority index and the second priority index are not equal.

[0216] As an example, the fourth priority index is greater than the second priority index.

[0217] As an example, the fifth priority index is less than the first priority index.

[0218] As mentioned earlier, the first PRACH transmission belongs to one of multiple PRACH transmission groups. The multiple PRACH transmission groups will be described in more detail below.

[0219] As one embodiment, the plurality of PRACH transmission groups each have the same priority. For example, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the first PRACH transmission group and the second PRACH transmission group have the same priority.

[0220] As one embodiment, the multiple PRACH transmission groups each have different or partially different priorities. For example, the multiple PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, where the priority of the first PRACH transmission group is different from that of the second PRACH transmission group. Alternatively, the multiple PRACH transmission groups include a first PRACH transmission group, a second PRACH transmission group, and a third PRACH transmission group, where the priority of the first PRACH transmission group is the same as that of the third PRACH transmission group, and both are different from the priority of the second PRACH transmission group.

[0221] As an example, at least one of the plurality of PRACH transport groups belongs to the first PRACH transport group.

[0222] As an example, any one of the plurality of PRACH transport groups belongs to the first PRACH transport group.

[0223] As one embodiment, the first PRACH transmission group includes multiple PRACH transmissions, and the multiple PRACHs included in the first PRACH transmission group are time-division multiplexed.

[0224] As one embodiment, the first PRACH transmission group includes multiple PRACH transmissions, which are non-overlapping in the time domain, or the multiple PRACH transmissions included in the first PRACH transmission group are orthogonal in the time domain.

[0225] As an example, one of the plurality of PRACH transport groups belongs to the second PRACH transport group.

[0226] As an example, the second PRACH transport group includes only one PRACH transport.

[0227] As an example, at least one of the plurality of PRACH transport groups belongs to the first PRACH transport group, and one of the plurality of PRACH transport groups belongs to the second PRACH transport group.

[0228] As an example, any two PRACH transport groups among the plurality of PRACH transport groups may contain different numbers of PRACH transports.

[0229] As a sub-implementation of the above embodiments, the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the transmission group to which the first PRACH transmission belongs. In other words, the number of PRACH transmissions included in the transmission group to which the first PRACH transmission belongs is used to determine the priority of the first PRACH.

[0230] As one example, the plurality of PRACH transport groups correspond to a plurality of priorities.

[0231] As a sub-implementation of the above embodiments, the priority of the first PRACH transmission is related to the priority of the PRACH transmission group to which the first PRACH transmission belongs.

[0232] As an example, the priority of any PRACH transmission group among the plurality of PRACH transmission groups is fixed.

[0233] As an example, the priority of any PRACH transport group among the plurality of PRACH transport groups is statically configured. For example, the priority of any PRACH transport group among the plurality of PRACH transport groups is predefined by the protocol.

[0234] As one embodiment, the priority of any PRACH transport group among the plurality of PRACH transport groups is configured by the network. For example, the priority of any PRACH transport group among the plurality of PRACH transport groups is configured by the network through higher-layer signaling (such as RRC signaling).

[0235] As one embodiment, the plurality of PRACH transport groups each correspond to a plurality of priority indices. As one embodiment, any two priority indices among the plurality of priority indices are different.

[0236] As a sub-implementation of the above embodiments, the priority of the first PRACH transmission is related to the priority index of the PRACH transmission group to which the first PRACH transmission belongs.

[0237] As an example, the priority index corresponding to any PRACH transport group among multiple PRACH transport groups is configured by the network, for example, by the network through higher-layer signaling (such as RRC signaling).

[0238] As an example, the PRACH transmission to which the first PRACH transmission belongs is the first PRACH transmission group.

[0239] As an example, the first PRACH transport group corresponds to the first priority index.

[0240] As an example, the first PRACH transport group corresponds to the second priority index.

[0241] As an example, the first priority index is not equal to the second priority index.

[0242] As an example, the first priority index is a positive integer.

[0243] As an example, the second priority index is a non-negative integer.

[0244] As an example, the first priority index is greater than the second priority index.

[0245] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is different from the number of PRACH transmissions included in the second PRACH transmission group.

[0246] As a sub-example of the above embodiments, the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group. However, the embodiments of this application are not limited to this. In some embodiments, the number of PRACH transmissions included in the first PRACH transmission group is less than the number of PRACH transmissions included in the second PRACH transmission group.

[0247] As one embodiment, the first PRACH transport group includes multiple PRACH transports, while the second PRACH transport group includes only one PRACH transport.

[0248] As a sub-example of the above embodiment, the number of PRACH transmissions included in the first PRACH transmission group is one of {2, 4, 8}.

[0249] As a sub-example of the above embodiments, the first PRACH transmission group includes two PRACH transmissions, and the second PRACH transmission group includes one PRACH transmission.

[0250] As a sub-example of the above embodiments, the first PRACH transmission group includes 4 PRACH transmissions, and the second PRACH transmission group includes 1 PRACH transmission.

[0251] As a sub-example of the above embodiments, the first PRACH transmission group includes 8 PRACH transmissions, and the second PRACH transmission group includes 1 PRACH transmission.

[0252] As one embodiment, the first PRACH transmission group includes multiple PRACH transmissions, the second PRACH transmission group includes multiple PRACH transmissions, and the number of multiple PRACH transmissions included in the first PRACH transmission group is greater than the number of multiple PRACH transmissions included in the second PRACH transmission group.

[0253] As a sub-example of the above embodiment, the number of PRACH transmissions included in the first PRACH transmission group is one of {4, 8}, and the number of PRACH transmissions included in the second PRACH transmission group is one of {2, 4}.

[0254] As a sub-example of the above embodiment, the first PRACH transmission group includes 4 PRACH transmissions, and the second PRACH transmission group includes 2 PRACH transmissions.

[0255] As a sub-example of the above embodiment, the first PRACH transmission group includes 8 PRACH transmissions, and the second PRACH transmission group includes 2 PRACH transmissions.

[0256] As a sub-example of the above embodiments, the first PRACH transmission group includes 8 PRACH transmissions, and the second PRACH transmission group includes 4 PRACH transmissions.

[0257] As an example, the number of PRACH transmissions included in the first PRACH transmission group is not less than a first integer, and the number of PRACH transmissions included in the second PRACH transmission group is less than the first integer.

[0258] As an example, the first integer is a positive integer.

[0259] This application does not limit the specific value of the first integer in the embodiments. Several values ​​of the first integer are given below as examples.

[0260] As an example, the first integer is 2. The first PRACH transmission group includes at least 2 PRACH transmissions, and the second PRACH transmission group includes at least 2 PRACH transmissions. For example, the first PRACH transmission group includes one of {2, 4, 8}, and the second PRACH transmission group includes 1 PRACH transmission.

[0261] As an example, the first integer is 3 or 4. The first PRACH transmission group includes a number of PRACH transmissions of not less than 3 or 4, and the second PRACH transmission group includes a number of PRACH transmissions of less than 3 or less than 4. For example, the first PRACH transmission group includes a number of PRACH transmissions of {4, 8}, and the second PRACH transmission group includes a number of PRACH transmissions of {1, 2}.

[0262] As an example, the first integer is any integer from 5 to 8. The number of PRACH transmissions included in the PRACH transmission group is not less than 5 / 6 / 7 / 8, and the number of PRACH transmissions included in the second PRACH transmission group is less than 5 / 6 / 7 / 8. For example, the number of PRACH transmissions included in the first PRACH transmission group is one of {8}, and the number of PRACH transmissions included in the second PRACH transmission group is one of {1, 2, 4}.

[0263] As mentioned earlier, the priority of the first PRACH transmission is related to the PRACH transmission group to which it belongs. For example, the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the PRACH transmission group to which it belongs; in other words, the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs is used to determine the priority of the first PRACH transmission. The priority of the first PRACH transmission will be described in more detail below.

[0264] As an example, the priority of the first PRACH transmission satisfies one or more of the following: the priority of the first PRACH transmission is higher than the priority of the PUSCH transmission; the priority of the first PRACH transmission is higher than the priority of the PUCCH transmission; the priority of the first PRACH transmission is higher than the priority of the SRS transmission.

[0265] As a sub-implementation of the above embodiments, the priority of the first PRACH transmission satisfies one of the above conditions. For example, the priority of the first PRACH transmission is higher than the priority of the PUSCH transmission. As a specific example, the PRACH transmission group to which the first PRACH transmission belongs includes multiple PRACH transmissions, and the priority of the first PRACH transmission is higher than the priority of the PUSCH transmission. As another example, the priority of the first PRACH transmission is higher than the priority of the SRS transmission. As a specific example, the PRACH transmission group to which the first PRACH transmission belongs includes multiple PRACH transmissions, and the priority of the first PRACH transmission is higher than the priority of the SRS transmission.

[0266] As a sub-implementation of the above embodiments, the priority of the first PRACH transmission satisfies multiple conditions described above. For example, the priority of the first PRACH transmission is higher than the priorities of the PUSCH and PUCCH transmissions. Another example is that the priority of the first PRACH transmission is higher than the priorities of the PUSCH and SRS transmissions, etc.

[0267] As an example, if the priority of the first PRACH transmission is higher than the priority of the SRS transmission, the priority of the first PRACH transmission can be higher than the priority of the PUSCH transmission or the PUCCH transmission, or it can be lower than the priority of the PUSCH transmission or the PUCCH transmission. This application embodiment does not limit this.

[0268] As an example, the PUSCH transmission includes high-priority PUSCH transmission and low-priority PUSCH transmission, and the PUCCH transmission includes high-priority PUCCH transmission and low-priority PUCCH transmission. The priority of the first PRACH transmission satisfies one or more of the following: the first PRACH transmission has a higher priority than the high-priority PUSCH transmission; the first PRACH transmission has a higher priority than the high-priority PUCCH transmission; the first PRACH transmission has a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the high-priority PUSCH transmission but a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the high-priority PUCCH transmission but a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the low-priority PUCCH transmission.

[0269] As a sub-implementation of the above embodiments, the priority of the first PRACH transmission satisfies one of the above conditions. For example, the priority of the first PRACH transmission is higher than that of the higher-priority PUSCH transmission. As a specific example, the PRACH transmission group to which the first PRACH transmission belongs includes multiple PRACH transmissions, and the priority of the first PRACH transmission is higher than that of the higher-priority PUSCH transmission. As another example, the priority of the first PRACH transmission is lower than that of the lower-priority PUSCH transmission. As a specific example, the PRACH transmission group to which the first PRACH transmission belongs includes multiple PRACH transmissions, and the priority of the first PRACH transmission is lower than that of the lower-priority PUSCH transmission.

[0270] As a sub-implementation of the above embodiments, the priority of the first PRACH transmission satisfies multiple conditions described above. For example, the priority of the first PRACH transmission is higher than that of the high-priority PUSCH transmission and the low-priority PUSCH transmission. Another example is that the priority of the first PRACH transmission is higher than that of the low-priority PUSCH transmission and the low-priority PUCCH transmission, etc.

[0271] As one embodiment, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the cell where the first PRACH transmission is located. For example, if the PRACH transmission to which the first PRACH transmission belongs includes multiple PRACH transmissions, the priority of the first PRACH transmission on the primary cell is higher than the priority of the PUSCH transmission, and the priority of the first PRACH transmission on a non-primary cell is lower than the priority of the PUSCH transmission. Alternatively, if the PRACH transmission to which the first PRACH transmission belongs includes multiple PRACH transmissions, the priority of the first PRACH transmission on the primary cell and the first PRACH transmission on both the primary and non-primary cells is higher than the priority of the PUSCH transmission. Or, if the PRACH transmission to which the first PRACH transmission belongs includes multiple PRACH transmissions, the priority of the first PRACH transmission on the primary cell is higher than the higher-priority PUSCH transmission, and the priority of the first PRACH transmission on a non-primary cell is lower than the higher-priority PUSCH transmission but higher than the lower-priority PUSCH transmission. For simplicity, this application will not list them all.

[0272] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH belongs is the first PRACH transmission group, the priority of the first PRACH transmission is higher than the priority of any PRACH transmission in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH transmission belongs is the second PRACH transmission group, the priority of the first PRACH transmission is lower than the priority of any PRACH transmission in the first PRACH transmission group.

[0273] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; and any PRACH transmission in the first PRACH transmission group has a higher priority than any PRACH transmission in the second PRACH transmission group.

[0274] As an example, the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs. The following describes the priority of the first PRACH transmission group by taking the example that the multiple PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, where the number of PRACH transmissions in the first PRACH transmission group is greater than the number of PRACH transmissions in the second PRACH transmission group (for example, the first PRACH transmission group includes multiple PRACH transmissions, and the second PRACH transmission includes one PRACH transmission), and the PRACH transmission group to which the first PRACH transmission belongs is the first PRACH transmission group.

[0275] As an example, the priority of the first PRACH transmission group satisfies one or more of the following: the priority of the first PRACH transmission group is higher than the priority of the PUSCH transmission; the priority of the first PRACH transmission group is higher than the priority of the PUCCH transmission; the priority of the first PRACH transmission group is higher than the priority of the SRS transmission; the priority of the first PRACH transmission group is higher than the priority of the second PRACH transmission group.

[0276] As an example, the priority of the first PRACH transmission group satisfies one of the above-described conditions. For example, the priority of the first PRACH transmission group is higher than the priority of the PUSCH transmission. Or, the priority of the first PRACH transmission group is higher than the priority of the SRS transmission, and so on.

[0277] As an example, the priority of the first PRACH transmission group satisfies at least two of the above-mentioned conditions. For example, the priority of the first PRACH transmission group is higher than the priority of the PUSCH transmission and higher than the priority of the PUCCH transmission. Or, the priority of the first PRACH transmission group is higher than the priority of the SRS transmission and higher than the priority of the second PRACH transmission group, and so on.

[0278] As an example, when the first PRACH transmission includes multiple PRACH transmissions, the priority of the first PRACH transmission group is higher than that of PUSCH transmission, PUCCH transmission, and SRS transmission. In this way, by increasing the priority of multiple PRACH transmissions, it is beneficial to solve the problems of large resource consumption and longer access delay caused by abandoning or reducing the transmission power of multiple PRACH transmissions.

[0279] As an example, PUSCH transmission includes high-priority PUSCH transmission and low-priority PUSCH transmission. For example, PUSCH transmission includes PUSCH transmission with a fourth priority index and PUSCH transmission with a fifth priority index, where the fourth priority index is higher than the fifth priority index.

[0280] As an example, the priority of the first PRACH transmission group satisfies one or more of the following: the priority of the first PRACH transmission group is higher than that of the high-priority PUSCH transmission; the priority of the first PRACH transmission group is higher than that of the low-priority PUSCH transmission; the priority of the first PRACH transmission group is lower than that of the high-priority PUSCH transmission but higher than that of the low-priority PUSCH transmission; the priority of the first PRACH transmission group is higher than that of the SRS transmission; the priority of the first PRACH transmission group is higher than that of the second PRACH transmission group.

[0281] As an example, the priority of the first PRACH transmission group satisfies one of the above-described conditions. For example, the priority of the first PRACH transmission group is higher than that of the high-priority PUSCH transmission. Alternatively, the priority of the first PRACH transmission group is lower than that of the high-priority PUSCH transmission but higher than that of the low-priority PUSCH transmission. Or, the priority of the first PRACH transmission group is higher than that of the low-priority PUSCH transmission. In this case, the priority of the first PRACH transmission group can be higher or lower than that of the high-priority PUSCH transmission; this embodiment of the application does not limit this.

[0282] As an example, the priority of the first PRACH transmission group satisfies multiple of the above-described conditions. For instance, the priority of the first PRACH transmission group is higher than that of the high-priority PUSCH transmission and also higher than that of the low-priority PUSCH transmission. Alternatively, the priority of the first PRACH transmission group is higher than that of the low-priority PUSCH transmission and also higher than that of the SRS transmission, and so on.

[0283] As an example, the priority of the first PRACH transport group is indicated by the priority index corresponding to the first PRACH transport group.

[0284] It should be understood that the priority or priority index of any PRACH transport group (such as the first PRACH transport group) among the plurality of PRACH transport groups is related to the first priority order. The first priority order is described in detail below.

[0285] As an example, the first priority order is one of a plurality of candidate orders.

[0286] As one example, the first configuration signaling is used to determine the plurality of candidate orders.

[0287] See also Figure 3 As an example, the method of this application embodiment further includes step 305. It should be understood that... Figure 3 The dashed box is used to indicate step S305 because step S305 is an optional step.

[0288] In step S305, a first configuration signaling is received, which is used to determine the plurality of candidate orders.

[0289] As one embodiment, the first configuration signaling is used to indicate the plurality of candidate orders.

[0290] As one embodiment, the first configuration signaling is used to indicate the PRACH transport group to which the first PRACH transmission belongs, and the plurality of PRACH transport groups correspond to the plurality of candidate orders. In this way, the first node can determine the candidate order corresponding to the PRACH transport group to which the first PRACH transmission belongs based on the PRACH transport group to which the first PRACH transmission belongs.

[0291] For example, the plurality of candidate orders includes a first candidate order and a second candidate order, and the plurality of PRACH transmission groups includes a first PRACH transmission group and a second PRACH transmission group. The first PRACH transmission group corresponds to the first candidate order, and the second PRACH transmission group corresponds to the second candidate order. When the first configuration signaling indicates that the PRACH transmission to which the first PRACH transmission belongs is the first PRACH transmission group, the candidate order corresponding to the PRACH transmission group to which the first PRACH transmission belongs can be determined as the first candidate order. When the first configuration signaling indicates that the PRACH transmission to which the first PRACH transmission belongs is the second PRACH transmission group, the candidate order corresponding to the PRACH transmission group to which the first PRACH transmission belongs can be determined as the second candidate order.

[0292] As an example, the first configuration signaling is received by the first node using the second receiver.

[0293] As an example, any one of the plurality of candidate orders is used to indicate the priority of any one of the plurality of candidate transmissions.

[0294] As an example, the order of the plurality of candidates is fixed. In other words, the order of the plurality of candidates is statically configured.

[0295] As an example, the order of the multiple candidates is configured by the network.

[0296] As an example, the priority of any candidate transmission among the plurality of candidate transmissions is related to one of the candidate orders among the plurality of candidate orders.

[0297] As an example, the priority of the first PRACH transmission is related to one of the candidate sequences among the plurality of candidate sequences.

[0298] As an example, the first priority order is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0299] As one embodiment, the plurality of candidate orders includes a first candidate order and a second candidate order, wherein the first priority order is one of the first candidate order or the second candidate order.

[0300] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; when the first PRACH transmission belongs to the first PRACH transmission group, the first priority order is the first candidate order; when the first PRACH transmission belongs to the second PRACH transmission group, the first priority order is the second candidate order.

[0301] As one embodiment, the first PRACH transmission group includes multiple PRACH transmissions, and the second PRACH transmission includes only one PRACH transmission. When the first PRACH transmission belongs to the first PRACH transmission group, the first priority order is the first candidate order; when the first PRACH transmission belongs to the second PRACH transmission group, the first priority order is the second candidate order.

[0302] As one embodiment, the first priority order includes the priority order of the PRACH transmission group to which the first PRACH transmission belongs. Alternatively, the first priority order includes the priority order of multiple PRACH transmissions.

[0303] As an example, the first priority order is related to the cell where the first PRACH transmission is located.

[0304] As an example, the first priority order includes the priority order of the cell where the first PRACH transmission is located.

[0305] As an example, the first priority order is related to the carrier on which the first PRACH transmission is located.

[0306] As an example, the PRACH transmission group to which the first PRACH transmission belongs is used to determine the first priority order from the plurality of candidate orders.

[0307] As an example, when the PRACH transmission to which the first PRACH transmission belongs is the first PRACH transmission group, the first priority order is the first candidate order; when the PRACH transmission to which the first PRACH transmission belongs is the second PRACH transmission group, the first priority order is the second candidate order; the first candidate order and the second candidate order are two candidate orders among the plurality of candidate orders.

[0308] As a sub-implementation of the above embodiments, the first PRACH transmission group includes multiple PRACH transmissions, while the second PRACH transmission group includes only one PRACH transmission.

[0309] As an example, the PRACH transmission group to which the first PRACH transmission belongs is the first PRACH transmission group, and the first priority order is the first candidate order; the first candidate order is one of the plurality of candidate orders.

[0310] As an example, the PRACH transmission group to which the first PRACH transmission belongs is the second PRACH transmission group, and the first priority order is the second candidate order; the second candidate order is one of the plurality of candidate orders.

[0311] As an example, the first candidate order is different from the second candidate order.

[0312] As one embodiment, the first priority order includes: the first PRACH transmission group is ordered before PUCCH transmission, PUSCH transmission, and SRS transmission. Alternatively, multiple PRACH transmissions are ordered before PUCCH transmission, PUSCH transmission, and SRS transmission.

[0313] As one embodiment, the first priority order includes: the first PRACH transmission group of the primary cell is ordered before PUCCH transmission, PUSCH transmission, and SRS transmission; the first PRACH transmission group of the non-primary cell is ordered after PUCCH transmission and PUSCH transmission. Alternatively, multiple PRACH transmissions of the primary cell are ordered before PUCCH transmission, PUSCH transmission, and SRS transmission; multiple PRACH transmission groups of the non-primary cell are ordered after PUCCH transmission and PUSCH transmission.

[0314] As one embodiment, the first priority order includes: the first PRACH transmission group of the primary cell is ordered before the high-priority PUCCH and high-priority PUSCH transmissions. Alternatively, multiple PRACH transmissions are ordered before the high-priority PUCCH and high-priority PUSCH transmissions.

[0315] As one embodiment, the first priority order includes: the first PRACH transmission group of a non-primary cell is ordered after the high-priority PUCCH and high-priority PUSCH transmissions. Alternatively, multiple PRACH transmissions of a non-primary cell are ordered after the high-priority PUCCH and high-priority PUSCH transmissions. As an example, the first PRACH transmission group of a non-primary cell may be ordered before the low-priority PUCCH and low-priority PUSCH. As another example, the first PRACH transmission group of a non-primary cell may be ordered after the low-priority PUCCH and low-priority PUSCH.

[0316] As one embodiment, the first priority order includes: the first PRACH transmission group of the non-primary cell is ordered before the low-priority PUCCH and low-priority PUSCH transmissions. For example, the first PRACH transmission group of the non-primary cell is ordered before the low-priority PUCCH and low-priority PUSCH transmissions, and is ordered before the high-priority PUCCH and high-priority PUSCH transmissions. Alternatively, the first PRACH transmission group of the non-primary cell is ordered before the low-priority PUCCH and low-priority PUSCH transmissions, and is ordered after the high-priority PUCCH and high-priority PUSCH transmissions.

[0317] As an example, when multiple PRACH transport groups correspond to multiple priority indices, the first priority order is respectively related to the multiple priority indices corresponding to the multiple PRACH transport groups.

[0318] As one embodiment, the plurality of priority indexes includes a high-priority index and a low-priority index. Alternatively, the plurality of priority indexes includes a first priority index and a second priority index, wherein the priority corresponding to the first priority index is higher than the priority corresponding to the second priority index.

[0319] As an example, the first priority order includes one or more of the following: multiple PRACH transmissions of the primary cell are ordered before PUCCH transmissions, PUSCH transmissions, and SRS transmissions; multiple high-priority PRACH transmissions of non-primary cells are ordered before PUCCH transmissions, PUSCH transmissions, and SRS transmissions; and multiple low-priority PRACH transmissions of non-primary cells are ordered after PUCCH transmissions and PUSCH transmissions.

[0320] As an example, the first priority order includes one or more of the following: multiple PRACH transmissions of the primary cell are ordered before PUCCH transmissions, PUSCH transmissions, and SRS transmissions; multiple high-priority PRACH transmissions of non-primary cells are ordered after PUCCH transmissions and PUSCH transmissions; multiple high-priority PRACH transmissions of non-primary cells are ordered before SRS transmissions; and multiple low-priority PRACH transmissions of non-primary cells are ordered after PUCCH transmissions and PUSCH transmissions.

[0321] As an example, the first priority order includes one or more of the following: multiple PRACH transmissions of the primary cell are ordered before PUCCH transmissions, PUSCH transmissions, and SRS transmissions; multiple high-priority PRACH transmissions of non-primary cells are ordered before high-priority PUCCH transmissions and high-priority PUSCH transmissions; multiple high-priority PRACH transmissions of non-primary cells are ordered after high-priority PUCCH transmissions and high-priority PUSCH transmissions; multiple low-priority PRACH transmissions of non-primary cells are ordered after high-priority PUCCH transmissions and high-priority PUSCH transmissions; and multiple low-priority PRACH transmissions of non-primary cells are ordered after low-priority PUCCH transmissions and low-priority PUSCH transmissions.

[0322] As one embodiment, the plurality of priority indexes includes a highest priority index, a higher priority index, and a low priority index. Alternatively, the plurality of priority indexes includes a first priority index, a second priority index, and a third priority index, with the priorities of the first priority index, the second priority index, and the third priority index decreasing sequentially.

[0323] As an example, the first priority order includes one or more of the following: multiple PRACH transmissions of the primary cell are ordered before PUCCH transmissions, PUSCH transmissions, and SRS transmissions; multiple PRACH transmissions of the highest priority in a non-primary cell are ordered before high-priority PUCCH transmissions and high-priority PUSCH transmissions; multiple PRACH transmissions of higher priority in a non-primary cell are ordered after high-priority PUCCH transmissions and high-priority PUSCH transmissions; multiple PRACH transmissions of higher priority in a non-primary cell are ordered before low-priority PUCCH transmissions and low-priority PUSCH transmissions; multiple PRACH transmissions of lower priority in a non-primary cell are ordered after high-priority PUCCH transmissions and high-priority PUSCH transmissions; and multiple PRACH transmissions of lower priority in a non-primary cell are ordered after low-priority PUCCH transmissions and low-priority PUSCH transmissions.

[0324] As an example, in a carrier aggregation scenario, if multiple uplink transmissions have the same priority order, the first node prioritizes power allocation for transmissions on the master cell group (MCG) or secondary cell group (SCG), rather than power allocation for transmissions on the secondary cell.

[0325] As an example, when there are two UL operators with the same priority order, the UE prioritizes allocating transmission power on the operator configured to transmit PUCCH. If neither of the two UL carriers is configured with PUCCH, the transmission power of the non-supplementary UL carrier is prioritized.

[0326] To facilitate understanding, the priorities and first priority order of multiple PRACH transmissions (e.g., the first PRACH transmission group) mentioned in the embodiments of this application are illustrated below with several examples. It should be noted that the following examples are not intended to limit the technical solutions of this application.

[0327] Example 1:

[0328] In Example 1, the priority of multiple PRACH transmissions on non-PCells is fixed, for example, predefined by the protocol. In other words, the priority of multiple PRACH transmissions on non-PCells is statically configured.

[0329] In Example 1, multiple PRACH transmissions have a higher priority than all PUCCH, PUSCH, or SRS transmissions. This increased priority helps avoid or reduce the resource consumption and access delays caused by multiple PRACH transmissions.

[0330] For example, in Example 1, when any PRACH transmission among multiple PRACH transmissions conflicts with multiple uplink transmissions, the first node (such as a user equipment) allocates power according to a first priority order, thereby ensuring that the total transmit power of the first node does not exceed the maximum transmit power value. The first priority order is as follows.

[0331] 1. Single PRACH transmission on PCell or multiple PRACH transmission on PCell;

[0332] 2. Multiple PRACH transfers on non-PCells;

[0333] 3. PUCCH or PUSCH transport with a high-priority index (or even higher-priority index);

[0334] 4. PUCCH or PUSCH transmissions with the same priority index:

[0335] (1) PUCCH transmission carrying HARQ-ACK information, SR, LRR or one or more of these, or PUSCH transmission carrying HARQ-ACK information of this priority index;

[0336] (2) PUCCH transmission carrying CSI, or PUSCH transmission carrying CSI;

[0337] (3) PUSCH transmission without HARQ-ACK information carrying the priority index or without CSI, PUSCH transmission of random access step type-2, PUSCH transmission on PCell.

[0338] 5. SRS transmission (aperiodic SRS has higher priority than semi-persistent SRS and / or periodic SRS), or single PRACH transmission on a non-PCell.

[0339] As can be seen from the above order, PRACH transmissions on the PCell (including single PRACH transmissions and multiple PRACH transmissions on the PCell) have the highest priority and are transmitted first in the event of conflicts between multiple uplink transmissions. Next, multiple PRACH transmissions on non-PCells are transmitted. Then, high-priority PUCCH and PUSCH are transmitted. Following that, low-priority PUCCH and PUSCH are transmitted. Finally, SRS and PRACH transmissions on non-PCells are transmitted.

[0340] When multiple PUCCHs and / or PUSCHs have the same priority, PUCCHs carrying HARQ-ACK information, SR, or LRR can be transmitted first, or PUSCHs carrying HARQ-ACK information can be transmitted first; then PUCCHs carrying CSI or PUSCHs carrying CSI can be transmitted; finally, PUSCHs without HARQ-ACK information or CSI, PUSCHs with Type-2 random access procedures, and PUSCHs transmitted on PCells can be transmitted, etc.

[0341] Example 2:

[0342] In Example 2, the priorities of multiple PRACH transmissions on non-PCell are fixed or statically configured, such as those predefined by the protocol.

[0343] In Example 2, multiple PRACH transmissions have a lower priority than PUCCH or PUSCH transmissions with higher priority indices.

[0344] For example, in Example 2, when any PRACH transmission among multiple PRACH transmissions conflicts with multiple uplink transmissions, the first node (such as a user equipment) allocates power according to a first priority order, thereby ensuring that the total transmit power of the first node does not exceed the maximum transmit power value. The first priority order is as follows.

[0345] 1. Single PRACH transmission on PCell or multiple PRACH transmission on PCell;

[0346] 2. PUCCH or PUSCH transport with a high-priority index (or even higher-priority index);

[0347] 3. Multiple PRACH transfers on non-PCells;

[0348] 4. PUCCH or PUSCH transmissions with the same priority index:

[0349] (1) PUCCH transmission carrying HARQ-ACK information, SR, LRR or one or more of these, or PUSCH transmission carrying HARQ-ACK information of this priority index;

[0350] (2) PUCCH transmission carrying CSI, or PUSCH transmission carrying CSI;

[0351] (3) PUSCH transmission without HARQ-ACK information carrying the priority index or without CSI, PUSCH transmission of random access step type-2, PUSCH transmission on PCell.

[0352] 5. SRS transmission (aperiodic SRS has higher priority than semi-persistent SRS and / or periodic SRS), or single PRACH transmission on a non-PCell.

[0353] As can be seen from the above order, PRACH transmissions on the PCell (including single PRACH transmissions and multiple PRACH transmissions on the PCell) have the highest priority and are transmitted first in the event of a conflict between multiple uplink transmissions. Next, high-priority PUCCH and PUSCH transmissions are transmitted. Then, multiple PRACH transmissions on non-PCells are transmitted. Following that, low-priority PUCCH and PUSCH transmissions are transmitted. Finally, SRS and PRACH transmissions on non-PCells are transmitted.

[0354] When multiple PUCCHs and / or PUSCHs have the same priority, PUCCHs carrying HARQ-ACK information, SR, or LRR can be transmitted first, or PUSCHs carrying HARQ-ACK information can be transmitted first; then PUCCHs carrying CSI or PUSCHs carrying CSI can be transmitted; finally, PUSCHs without HARQ-ACK information or CSI, PUSCHs with Type-2 random access procedures, and PUSCHs transmitted on PCells can be transmitted, etc.

[0355] Example 3:

[0356] In Example 3, the priority of multiple PRACH transfers on non-PCells is indicated by a priority index.

[0357] In Example 3, the priority index of multiple PRACH transmissions on non-PCells is configured by the network, for example, by the network via RRC signaling.

[0358] In Example 3, two priority indices {p0, p1} are configured for multiple PRACH transports on non-PCell, where priority index p0 indicates low priority and priority index p1 indicates high priority.

[0359] For example, in Example 3, when any PRACH transmission among multiple PRACH transmissions conflicts with multiple uplink transmissions, the first node (such as a user equipment) allocates power according to a first priority order, thereby ensuring that the total transmit power of the first node does not exceed the maximum transmit power value. The first priority order is as follows.

[0360] 1. Single PRACH transmission on PCell or multiple PRACH transmission on PCell;

[0361] 2. Multiple PRACH transfers on non-PCells with high-priority indexes (higher-priority indexes, such as p1);

[0362] 3. PUCCH or PUSCH transport with a high-priority index (or even higher-priority index);

[0363] 4. PUCCH or PUSCH transmissions with the same priority index:

[0364] (1) PUCCH transmission carrying HARQ-ACK information, SR, LRR or one or more of these, or PUSCH transmission carrying HARQ-ACK information of this priority index;

[0365] (2) PUCCH transmission carrying CSI, or PUSCH transmission carrying CSI;

[0366] (3) PUSCH transmission without HARQ-ACK information carrying the priority index or without CSI, PUSCH transmission of random access step type-2, PUSCH transmission on PCell.

[0367] 5. SRS transmission (aperiodic SRS has higher priority than semi-persistent SRS and / or periodic SRS), or a single PRACH transmission on a non-PCell, or multiple PRACH transmissions on a non-PCell with a low-priority index (such as p0).

[0368] As can be seen from the above order, PRACH transmissions on the PCell (including single PRACH transmissions and multiple PRACH transmissions on the PCell) have the highest priority and are transmitted first in the event of a conflict between multiple uplink transmissions. Next, multiple high-priority PRACH transmissions on non-PCells are transmitted. Then, high-priority PUCCH and PUSCH transmissions are transmitted. Following that, low-priority PUCCH and PUSCH transmissions are transmitted. Finally, SRS, PRACH transmissions on non-PCells, and multiple low-priority PRACH transmissions on non-PCells are transmitted.

[0369] When multiple PUCCHs and / or PUSCHs have the same priority, PUCCHs carrying HARQ-ACK information, SR, or LRR can be transmitted first, or PUSCHs carrying HARQ-ACK information can be transmitted first; then PUCCHs carrying CSI or PUSCHs carrying CSI can be transmitted; finally, PUSCHs without HARQ-ACK information or CSI, PUSCHs with Type-2 random access procedures, and PUSCHs transmitted on PCells can be transmitted, etc.

[0370] Example 4:

[0371] In Example 4, the priority of multiple PRACH transfers on non-PCells is indicated by a priority index.

[0372] In Example 4, the priority index of multiple PRACH transmissions on non-PCells is configured by the network, for example, by the network via RRC signaling.

[0373] In Example 4, two priority indices {p0, p1} are configured for multiple PRACH transports on non-PCell, where priority index p0 indicates low priority and priority index p1 indicates high priority.

[0374] For example, in Example 4, when any PRACH transmission among multiple PRACH transmissions conflicts with multiple uplink transmissions, the first node (such as a user equipment) allocates power according to a first priority order, thereby ensuring that the total transmit power of the first node does not exceed the maximum transmit power value. The first priority order is as follows.

[0375] 1. Single PRACH transmission on PCell or multiple PRACH transmission on PCell;

[0376] 2. PUCCH or PUSCH transport with a high-priority index (or even higher-priority index);

[0377] 3. Multiple PRACH transfers on non-PCells with high-priority indexes (higher-priority indexes, such as p1);

[0378] 4. PUCCH or PUSCH transmissions with the same priority index:

[0379] (1) PUCCH transmission carrying HARQ-ACK information, SR, LRR or one or more of these, or PUSCH transmission carrying HARQ-ACK information of this priority index;

[0380] (2) PUCCH transmission carrying CSI, or PUSCH transmission carrying CSI;

[0381] (3) PUSCH transmission without HARQ-ACK information carrying the priority index or without CSI, PUSCH transmission of random access step type-2, PUSCH transmission on PCell.

[0382] 5. SRS transmission (aperiodic SRS has higher priority than semi-persistent SRS and / or periodic SRS), or a single PRACH transmission on a non-PCell, or multiple PRACH transmissions on a non-PCell with a low-priority index (such as p0).

[0383] As can be seen from the above order, PRACH transmissions on the PCell (including single PRACH transmissions and multiple PRACH transmissions on the PCell) have the highest priority and are transmitted first in the event of a conflict between multiple uplink transmissions. Next, high-priority PUCCH and PUSCH transmissions are transmitted. Then, high-priority multiple PRACH transmissions on non-PCells are transmitted. Following that, low-priority PUCCH and PUSCH transmissions are transmitted. Finally, SRS, PRACH transmissions on non-PCells, and low-priority multiple PRACH transmissions on non-PCells are transmitted.

[0384] When multiple PUCCHs and / or PUSCHs have the same priority, PUCCHs carrying HARQ-ACK information, SR, or LRR can be transmitted first, or PUSCHs carrying HARQ-ACK information can be transmitted first; then PUCCHs carrying CSI or PUSCHs carrying CSI can be transmitted; finally, PUSCHs without HARQ-ACK information or CSI, PUSCHs with Type-2 random access procedures, and PUSCHs transmitted on PCells can be transmitted, etc.

[0385] Example 5:

[0386] In Example 5, the priority of multiple PRACH transfers on non-PCells is indicated by a priority index.

[0387] In Example 5, the priority index of multiple PRACH transmissions on non-PCells is configured by the network, for example, by the network via RRC signaling.

[0388] In Example 5, multiple priority indices {p0, p1, p2} are configured for multiple PRACH transports on non-PCells, where priority index p0 indicates the lowest priority, priority index p1 indicates a higher priority, and priority index p2 indicates the highest priority.

[0389] For example, in Example 5, when any PRACH transmission among multiple PRACH transmissions conflicts with multiple uplink transmissions, the first node (such as a user equipment) allocates power according to a first priority order, thereby ensuring that the total transmit power of the first node does not exceed the maximum transmit power value. The first priority order is as follows.

[0390] 1. Single PRACH transmission on PCell or multiple PRACH transmission on PCell;

[0391] 2. Multiple PRACH transfers on non-PCells with the highest priority index (e.g., p2);

[0392] 3. PUCCH or PUSCH transport with a high-priority index (or even higher-priority index);

[0393] 4. Multiple PRACH transfers with higher priority indexes (such as p1) on non-PCells;

[0394] 5. PUCCH or PUSCH transmissions with the same priority index:

[0395] (1) PUCCH transmission carrying HARQ-ACK information, SR, LRR or one or more of these, or PUSCH transmission carrying HARQ-ACK information of this priority index;

[0396] (2) PUCCH transmission carrying CSI, or PUSCH transmission carrying CSI;

[0397] (3) PUSCH transmission without HARQ-ACK information carrying the priority index or without CSI, PUSCH transmission of random access step type-2, PUSCH transmission on PCell.

[0398] 6. SRS transmission (aperiodic SRS has higher priority than semi-persistent SRS and / or periodic SRS), or a single PRACH transmission on a non-PCell, or multiple PRACH transmissions on a non-PCell with a low-priority index (such as p0).

[0399] As can be seen from the above order, PRACH transmissions on the PCell (including single PRACH transmissions and multiple PRACH transmissions on the PCell) have the highest priority and are transmitted first in the event of a conflict between multiple uplink transmissions. Next, the highest priority multiple PRACH transmissions on non-PCells are transmitted. Then, high-priority PUCCH and PUSCH transmissions are transmitted. Next, relatively high-priority multiple PRACH transmissions on non-PCells are transmitted. Then, low-priority PUCCH and PUSCH transmissions are transmitted. Finally, SRS, PRACH transmissions on non-PCells are transmitted, and low-priority multiple PRACH transmissions on non-PCells are transmitted.

[0400] When multiple PUCCHs and / or PUSCHs have the same priority, PUCCHs carrying HARQ-ACK information, SR, or LRR can be transmitted first, or PUSCHs carrying HARQ-ACK information can be transmitted first; then PUCCHs carrying CSI or PUSCHs carrying CSI can be transmitted; finally, PUSCHs without HARQ-ACK information or CSI, PUSCHs with Type-2 random access procedures, and PUSCHs transmitted on PCells can be transmitted, etc.

[0401] It should be noted that in Examples 1 to 5 mentioned above, both multiple PRACH transmissions and single PRACH transmissions were allocated power or determined whether to abandon transmission according to the first priority order listed above. However, the embodiments of this application are not limited to this. For example, multiple PRACH transmissions and single PRACH transmissions may be allocated power or determined whether to abandon transmission according to the first priority order and the second priority order, respectively. Examples 6 and 7 are described below as examples.

[0402] It should be noted that when a single PRACH transmission is allocated power or determined to abandon transmission according to the second priority order, the second priority order can refer to the decreasing priority order when at least two of the various uplink transmissions such as single PRACH transmission, PUSCH transmission, PUCCH transmission, and SRS transmission conflict, as described above, or refer to the relevant description in Section 7.5 of 3GPP TS 38.213. For the sake of brevity, it will not be repeated here.

[0403] Example 6:

[0404] In Example 6, the priorities of multiple PRACH transmissions on non-PCell are fixed or statically configured, such as those predefined by the protocol.

[0405] In Example 6, multiple PRACH transmissions have a higher priority than all PUCCH, PUSCH, or SRS transmissions. This increased priority helps avoid or reduce the high resource consumption and extended access times associated with multiple PRACH transmissions.

[0406] For example, in Example 6, when any PRACH transmission among multiple PRACH transmissions conflicts with multiple uplink transmissions, the first node (such as a user equipment) allocates power according to a first priority order, thereby ensuring that the total transmit power of the first node does not exceed the maximum transmit power value. The first priority order is as follows.

[0407] 1. Multiple PRACH transfers on PCell;

[0408] 2. Multiple PRACH transfers on non-PCells;

[0409] 3. PUCCH or PUSCH transport with a high-priority index (or even higher-priority index);

[0410] 4. PUCCH or PUSCH transmissions with the same priority index:

[0411] (1) PUCCH transmission carrying HARQ-ACK information, SR, LRR or one or more of these, or PUSCH transmission carrying HARQ-ACK information of this priority index;

[0412] (2) PUCCH transmission carrying CSI, or PUSCH transmission carrying CSI;

[0413] (3) PUSCH transmission without HARQ-ACK information carrying the priority index or without CSI, PUSCH transmission of random access step type-2, PUSCH transmission on PCell.

[0414] 5. SRS transmission (aperiodic SRS has a higher priority than semi-persistent SRS and / or periodic SRS).

[0415] As can be seen from the above order, multiple PRACH transmissions on the PCell have the highest priority and will be transmitted first in the event of a conflict between multiple uplink transmissions. Next, multiple PRACH transmissions on non-PCells will be transmitted. Then, high-priority PUCCH and PUSCH will be transmitted. Next, low-priority PUCCH and PUSCH will be transmitted. Finally, SRS will be transmitted.

[0416] When multiple PUCCHs and / or PUSCHs have the same priority, PUCCHs carrying HARQ-ACK information, SR, or LRR can be transmitted first, or PUSCHs carrying HARQ-ACK information can be transmitted first; then PUCCHs carrying CSI or PUSCHs carrying CSI can be transmitted; finally, PUSCHs without HARQ-ACK information or CSI, PUSCHs with Type-2 random access procedures, and PUSCHs transmitted on PCells can be transmitted, etc.

[0417] Example 7:

[0418] In Example 7, the priority of multiple PRACH transfers on non-PCells is indicated by a priority index.

[0419] In Example 7, the priority index of multiple PRACH transmissions on non-PCells is configured by the network, for example, by the network via RRC signaling.

[0420] In Example 7, two priority indices {p0, p1} are configured for multiple PRACH transports on non-PCell, where priority index p0 indicates low priority and priority index p1 indicates high priority.

[0421] For example, in Example 7, when any PRACH transmission among multiple PRACH transmissions conflicts with multiple uplink transmissions, the first node (such as a user equipment) allocates power according to a first priority order, thereby ensuring that the total transmit power of the first node does not exceed the maximum transmit power value. The first priority order is as follows.

[0422] 1. Multiple PRACH transfers on PCell;

[0423] 2. PUCCH or PUSCH transport with a high-priority index (or even higher-priority index);

[0424] 3. Multiple PRACH transfers on non-PCells with high-priority indexes (higher-priority indexes, such as p1);

[0425] 4. PUCCH or PUSCH transmissions with the same priority index:

[0426] (1) PUCCH transmission carrying HARQ-ACK information, SR, LRR or one or more of these, or PUSCH transmission carrying HARQ-ACK information of this priority index;

[0427] (2) PUCCH transmission carrying CSI, or PUSCH transmission carrying CSI;

[0428] (3) PUSCH transmission without HARQ-ACK information carrying the priority index or without CSI, PUSCH transmission of random access step type-2, PUSCH transmission on PCell.

[0429] 5. SRS transmissions (aperiodic SRS has higher priority than semi-persistent SRS and / or periodic SRS), or multiple PRACH transmissions on non-PCells with low-priority indices (such as p0).

[0430] As can be seen from the above order, multiple PRACH transmissions on the PCell have the highest priority and are transmitted first in the event of a conflict between multiple uplink transmissions. Next, high-priority PUCCH and PUSCH transmissions are transmitted. Then, multiple high-priority PRACH transmissions on non-PCells are transmitted. Following that, low-priority PUCCH and PUSCH transmissions are transmitted. Finally, multiple low-priority PRACH transmissions on SRS and non-PCells are transmitted.

[0431] When multiple PUCCHs and / or PUSCHs have the same priority, PUCCHs carrying HARQ-ACK information, SR, or LRR can be transmitted first, or PUSCHs carrying HARQ-ACK information can be transmitted first; then PUCCHs carrying CSI or PUSCHs carrying CSI can be transmitted; finally, PUSCHs without HARQ-ACK information or CSI, PUSCHs with Type-2 random access procedures, and PUSCHs transmitted on PCells can be transmitted, etc.

[0432] It should be noted that the above examples are not exhaustive, but only a part of the examples listed for ease of understanding. For the sake of brevity, other examples are not listed.

[0433] It should also be noted that in the examples listed above (e.g., Example 3, Example 4, etc.), the number of PRACH transmissions included in multiple PRACH transmissions can be used to determine the priority index of the multiple PRACH transmissions. Alternatively, the number of Ros occupied by multiple PRACH transmissions can be used to determine the priority index of the multiple PRACH transmissions.

[0434] As mentioned earlier, the at least one uplink transmission sent at the first transmission timing is one of a plurality of candidate transmissions. As an embodiment, the at least one uplink transmission includes the first PRACH transmission. That is, in some embodiments, a PRACH transmission (such as the first PRACH transmission) can be sent at the first transmission timing. In this case, the embodiments of this application can also monitor the first random response corresponding to the first PRACH transmission.

[0435] See also Figure 3 As an example, the method of this application embodiment may further include step S320. It should be understood that... Figure 3 The dashed box is used to indicate step S320 because step S320 is an optional step.

[0436] In step S320, as a response to the first PRACH transmission, a first random response is monitored within a first time window. The start of the first time window is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0437] As one embodiment, the starting point of the first time window being related to the PRACH transmission group to which the first PRACH transmission belongs may include or be replaced by: the PRACH transmission group to which the first PRACH transmission belongs being used to determine the starting point of the first time window.

[0438] As one embodiment, the start of the first time window is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs. In other words, the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs is used to determine the start of the first time window.

[0439] As an example, the starting point of the first time window is located after the last multicarrier symbol of the last random access opportunity in the PRACH transmission group to which the first PRACH transmission belongs.

[0440] As an example, the starting point of the first time window is located after the last multicarrier symbol of the last random access opportunity among the multiple random access opportunities included in the PRACH transmission group to which the first PRACH transmission belongs.

[0441] As an example, the starting point of the first time window is located after the last multicarrier symbol of the first random access opportunity in the PRACH transmission group to which the first PRACH transmission belongs.

[0442] As an example, the starting point of the first time window is located after the last multicarrier symbol of the first random access opportunity among the multiple random access opportunities included in the PRACH transmission group to which the first PRACH transmission belongs.

[0443] As an example, the length of the first time window is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0444] As one embodiment, the length of the first time window being related to the PRACH transmission group to which the first PRACH transmission belongs may include or be replaced by: the PRACH transmission group to which the first PRACH transmission belongs being used to determine the length of the first time window.

[0445] As one embodiment, the length of the first time window is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs. Alternatively, the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs is used to determine the length of the first time window.

[0446] As an example, the first time window is a random access response window (RAR window).

[0447] As an example, the first time window is used to receive random access responses.

[0448] As one embodiment, the first time window used to receive the random access response may include or be replaced by: monitoring the random access response within the first time window.

[0449] This application does not limit the time-domain unit of the first time window. As one embodiment, the time-domain unit of the first time window can be a time slot. As one embodiment, the time-domain unit of the first time window can be a multi-carrier symbol. Alternatively, this application does not limit the granularity (or scale) of the first time window. As one embodiment, the granularity of the first time window is a time slot. As one embodiment, the granularity of the first time window is a multi-carrier symbol.

[0450] This application does not specifically limit the representation of the length of the first time window in its embodiments. As one embodiment, the length of the first time window can be represented using time slots. As one embodiment, the length of the first time window can be represented using multi-carrier symbols. As one embodiment, the length of the first time window can be represented using subframes. As one embodiment, the length of the first time window can be represented using milliseconds. As one embodiment, the length of the first time window can be represented using seconds. It should be noted that the representation methods mentioned above are merely examples, and the length of the first time window can also be represented in other ways not listed.

[0451] This application does not specifically limit the length of the first time window. The following description uses time slots or milliseconds as examples to illustrate the length of the first time window.

[0452] As one embodiment, the length of the first time window includes at least one time slot, for example, 5 time slots, 10 time slots, etc. Alternatively, the length of the first time window includes multiple time slots, for example, two or more time slots.

[0453] As an example, the length of the first time window is less than or equal to 10 milliseconds.

[0454] As an example, the length of the first time window is less than or equal to 40 milliseconds.

[0455] Of course, the length of the first time window can be other values, and this application embodiment does not limit this.

[0456] As one possible implementation, at one or more transmission times (e.g., at the first transmission time, or at multiple transmission times including the first transmission time), when multiple PRACH transmissions in a random access attempt conflict with other uplink transmissions, it may be considered to abandon multiple PRACH transmissions or abandon other uplink transmissions, or it may be considered to reduce the transmit power of multiple PRACH transmissions or reduce the transmit power of other uplink transmissions.

[0457] Taking the example of abandoning multiple PRACH transmissions or reducing the transmit power of multiple PRACH transmissions, the following two solutions can be considered.

[0458] Option 1: The user equipment abandons all PRACH transmissions in a random access attempt, or reduces the transmit power of all PRACH transmissions in a random access attempt.

[0459] Option 2: The user equipment abandons a PRACH transmission that conflicts with other uplink transmissions in a random access attempt, or reduces the transmit power of a PRACH transmission that conflicts with other uplink transmissions in a random access attempt.

[0460] Therefore, how to determine whether to abandon multiple PRACH transmissions or whether to abandon conflicting PRACH transmissions among multiple PRACH transmissions, or how to determine whether to reduce the transmit power of multiple PRACH transmissions or whether to reduce the transmit power of conflicting PRACH transmissions among multiple PRACH transmissions, remains a problem that needs to be solved.

[0461] To address the above problems, this application provides several solutions, which are described below.

[0462] As an example, any one of the at least one uplink transmissions (the at least one uplink transmission sent during the first transmission timing) is one of a plurality of uplink transmissions to be sent. The plurality of uplink transmissions to be sent are described below.

[0463] As an example, the plurality of uplink transmissions to be sent refers to uplink transmissions that need to be sent at one or more transmission times. For example, the plurality of uplink transmissions to be sent refers to the uplink transmissions that need to be sent at the first transmission time.

[0464] As one embodiment, the at least one uplink transmission is an uplink transmission determined from the plurality of uplink transmissions to be transmitted and transmitted at a first transmission timing. That is, the at least one uplink transmission is a portion or all of the plurality of uplink transmissions to be transmitted.

[0465] As an example, the plurality of uplink transmissions to be sent include one or more of the following: PUSCH transmission, PUCCH transmission, PRACH transmission, and SRS transmission.

[0466] As an example, the plurality of uplink transmissions to be sent include one or more of the following: high-priority PUSCH transmission, low-priority PUSCH transmission, high-priority PUCCH transmission, low-priority PUSCH transmission, PRACH transmission, and SRS transmission.

[0467] As one embodiment, the plurality of uplink transmissions to be transmitted include PUSCH transmission, PUCCH transmission and PRACH transmission, and the at least one uplink transmission includes PUSCH transmission and PUCCH transmission, or the at least one uplink transmission includes PUCCH transmission and PRACH transmission.

[0468] As an example, when the plurality of uplink transmissions to be sent include PRACH transmissions, the PRACH transmissions included in the plurality of uplink transmissions to be sent are one or more of the following: a single PRACH transmission, or multiple PRACH transmissions. For example, the plurality of uplink transmissions to be sent include multiple PRACH transmissions; or, the plurality of uplink transmissions to be sent include a single PRACH transmission and multiple PRACH transmissions.

[0469] As an example, when the plurality of uplink transmissions to be transmitted include PRACH transmissions, the PRACH transmissions included in the plurality of uplink transmissions to be transmitted include one or more of the following: PRACH transmissions in a first PRACH transmission group, and PRACH transmissions in a second PRACH transmission group. The first PRACH transmission group and the second PRACH transmission group belong to the plurality of PRACH transmission groups.

[0470] As an example, when the plurality of uplink transmissions to be transmitted include PRACH transmissions, the PRACH transmissions included in the plurality of uplink transmissions to be transmitted include one or more of the following: PRACH transmissions in a first PRACH transmission group, PRACH transmissions in a second PRACH transmission group, and PRACH transmissions in a third PRACH transmission group. The first PRACH transmission group, the second PRACH transmission group, and the third PRACH transmission group belong to the plurality of PRACH transmission groups.

[0471] As one embodiment, any one of the plurality of uplink transmissions to be transmitted is one of the plurality of candidate transmissions. Alternatively, the plurality of uplink transmissions to be transmitted may be some or all of the plurality of candidate transmissions.

[0472] As an example, the plurality of uplink transmissions to be transmitted include the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0473] As one embodiment, the transmission group to which the first PRACH transmission belongs is a first PRACH transmission group. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the first PRACH transmission group and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs. Alternatively, the priority of the first PRACH transmission group and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0474] As an example, the plurality of uplink transmissions to be transmitted include a PUSCH transmission, a PUCCH transmission, and the first PRACH transmission, and the PUCCH transmission has a higher priority than the PUSCH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the PUCCH transmission are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0475] As an example, when the first PRACH transmission conflicts with multiple other transmissions, the priority of the PRACH transmission group to which the first PRACH transmission belongs and the priority of the transmission with the highest priority among the multiple other transmissions are used to determine whether to abandon the transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the transmission group to which the first PRACH transmission belongs.

[0476] As an example, the PRACH transmission group to which the first PRACH transmission belongs includes multiple PRACH transmissions. When the first PRACH transmission conflicts with multiple other transmissions, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the transmission with the highest priority among the multiple other transmissions are used to determine whether to abandon the transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the transmission group to which the first PRACH transmission belongs.

[0477] Alternatively, when different PRACH transmissions in multiple PRACH transmissions (e.g., the PRACH transmission group to which the first PRACH transmission belongs) conflict with multiple other uplink transmissions (e.g., when different PRACH transmissions in multiple PRACH transmissions conflict with multiple other uplink transmissions at different transmission times), whether the multiple PRACH transmissions are abandoned or have their transmit power reduced depends on the comparison between the priority of the multiple PRACH transmissions and the priority of the highest priority uplink transmission among the multiple other uplink transmissions.

[0478] Previous text Figure 2 For example, in Figure 2 In the example, multiple PRACH transmissions may conflict with other uplink transmissions 1 (e.g., PUCCH transmissions) and other uplink transmissions 2 (e.g., PUSCH transmissions) in the diagram, where the other uplink transmissions 1 have a higher priority than the other uplink transmissions 2. Therefore, in the event of multiple PRACH transmissions conflicting with other uplink transmissions 1 and 2, the priority of the multiple PRACH transmissions can be compared with the priority of other uplink transmissions 1 to determine whether to abandon the multiple PRACH transmissions or reduce their transmit power.

[0479] As an example, the plurality of uplink transmissions to be transmitted include the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

[0480] As an example, "partial PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs" refers to PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs that have conflicting PRACH transmissions.

[0481] As an example, the plurality of uplink transmissions to be transmitted include the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the conflicting PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the conflicting PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs.

[0482] As one embodiment, the transmission group to which the first PRACH transmission belongs is a first PRACH transmission group. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the first PRACH transmission group and the priority of each of the plurality of uplink transmissions to be transmitted are used to determine whether to abandon some PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of some PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs. Alternatively, the priority of the first PRACH transmission group and the priority of each of the plurality of uplink transmissions to be transmitted are used to determine whether to abandon some PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of some PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

[0483] As an example, the plurality of uplink transmissions to be transmitted include a PUSCH transmission, a PUCCH transmission, and the first PRACH transmission. PRACH transmission A (e.g., the first PRACH transmission) in the PRACH transmission group to which the first PRACH transmission belongs conflicts with the PUSCH transmission. PRACH transmission B in the PRACH transmission group to which the first PRACH transmission belongs conflicts with the PUCCH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, then any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs will be... The priority and the priority of the PUSCH transmission are used to determine whether to abandon PRACH transmission A in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of PRACH transmission A in the PRACH transmission group to which the first PRACH transmission belongs. The priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the PUCCH transmission are used to determine whether to abandon PRACH transmission B in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of PRACH transmission B in the PRACH transmission group to which the first PRACH transmission belongs.

[0484] As an example, when the first PRACH transmission conflicts with multiple other transmissions, the priority of the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the multiple other transmissions are used to determine whether to abandon the conflicting PRACH transmission in the transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the conflicting PRACH transmission in the transmission group to which the first PRACH transmission belongs.

[0485] As one embodiment, the PRACH transmission group to which the first PRACH transmission belongs includes multiple PRACH transmissions. When the first PRACH transmission conflicts with multiple other transmissions, the priority of the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the multiple other transmissions are used to determine whether to abandon the conflicting PRACH transmission in the transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the conflicting PRACH transmission in the transmission group to which the first PRACH transmission belongs.

[0486] Alternatively, when different PRACH transmissions in multiple PRACH transmissions (e.g., the PRACH transmission group to which the first PRACH transmission belongs) conflict with multiple other uplink transmissions (e.g., when different PRACH transmissions in multiple PRACH transmissions conflict with multiple other uplink transmissions at different transmission times), whether the conflicting PRACH transmissions in the multiple PRACH transmissions are abandoned or have their transmit power reduced depends on a comparison of the priority of the multiple PRACH transmissions with the priority of each of the multiple other uplink transmissions.

[0487] As before Figure 2 For example, in Figure 2 In the example, multiple PRACH transmissions may conflict with other uplink transmissions 1 (e.g., PUCCH transmissions) and other uplink transmissions 2 (e.g., PUSCH transmissions) in the diagram, where the other uplink transmissions 1 have a higher priority than the other uplink transmissions 2. Therefore, when multiple PRACH transmissions conflict with other uplink transmissions 1 and 2, it can be determined whether to abandon the PRACH transmissions conflicting with other uplink transmissions 1 or reduce their power by comparing the priorities of the multiple PRACH transmissions with the priorities of other uplink transmissions 1; similarly, it can be determined whether to abandon the PRACH transmissions conflicting with other uplink transmissions 2 or reduce their power by comparing the priorities of the multiple PRACH transmissions with the priorities of other uplink transmissions 2.

[0488] The above text combined Figure 3 This application describes in detail, from the perspective of the first node, the method for a first node used in wireless communication provided by the embodiments of this application. The following section, in conjunction with... Figure 4 This application describes the method for using a second node in wireless communication from the perspective of a second node. It should be understood that the descriptions of the first and second nodes correspond to each other; therefore, any parts not described in detail can be found above.

[0489] As an example, the second node may be a node in the communication system that receives at least one uplink transmission.

[0490] As an example, the second node can be a base station.

[0491] As one embodiment, the second node may include the first receiver.

[0492] As one example, the second node may include a first transmitter and a second transmitter.

[0493] Figure 4 This is a flowchart illustrating a method used in a second node for wireless communication, as provided in an embodiment of this application. Figure 4 The method shown may include step S410.

[0494] In step S410, at least one uplink transmission is received. This at least one uplink transmission was sent during the first transmission timing.

[0495] Each of the at least one uplink transmission is one of a plurality of candidate transmissions; the priority of any of the plurality of candidate transmissions is related to a first priority order; the first priority order is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first physical random access channel (PRACH) transmission, the first PRACH transmission belonging to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0496] As an example, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the cell where the first PRACH transmission is located.

[0497] As an example, the priority of the first PRACH transmission is related to the carrier on which the first PRACH is located.

[0498] As an example, any two PRACH transmission groups in the plurality of PRACH transmission groups may contain different numbers of PRACH transmissions, and the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs.

[0499] As an example, the plurality of PRACH transmission groups correspond to a plurality of priority indices, and the priority of the first PRACH transmission is related to the priority index corresponding to the PRACH transmission group to which the first PRACH transmission belongs.

[0500] As one embodiment, the at least one uplink transmission includes the first PRACH transmission, and the method further includes: sending a first random response within a first time window as a response to the first PRACH transmission; the start of the first time window is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0501] As an example, the priority of the first PRACH transmission is related to the priority index of the first PRACH transmission, and the priority index of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0502] As one embodiment, the method includes: sending a first configuration signaling message, the first configuration signaling message being used to determine a plurality of candidate orders, the first priority order being one of the plurality of candidate orders; and the PRACH transmission group to which the first PRACH transmission belongs being used to determine the first priority order from the plurality of candidate orders.

[0503] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; the plurality of candidate orders include a first candidate order and a second candidate order, wherein the first priority order is one of the first candidate order or the second candidate order; when the first PRACH transmission belongs to the first PRACH transmission group, the first priority order is the first candidate order; when the first PRACH transmission belongs to the second PRACH transmission group, the first priority order is the second candidate order.

[0504] As an example, the priority of the first PRACH transmission satisfies one or more of the following: the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Shared Channel (PUSCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Control Channel (PUCCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Sound Reference Signal (SRS) transmission.

[0505] As an example, the PUSCH transmission includes high-priority PUSCH transmission and low-priority PUSCH transmission, and the PUCCH transmission includes high-priority PUCCH transmission and low-priority PUCCH transmission. The priority of the first PRACH transmission satisfies one or more of the following: the first PRACH transmission has a higher priority than the high-priority PUSCH transmission; the first PRACH transmission has a higher priority than the high-priority PUCCH transmission; the first PRACH transmission has a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the high-priority PUSCH transmission but a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the high-priority PUCCH transmission but a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the low-priority PUCCH transmission.

[0506] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH belongs is the first PRACH transmission group, the priority of the first PRACH transmission is higher than the priority of any PRACH transmission in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH transmission belongs is the second PRACH transmission group, the priority of the first PRACH transmission is lower than the priority of any PRACH transmission in the first PRACH transmission group.

[0507] As one example, the first priority order is fixed or network-configured.

[0508] As an example, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0509] As an example, the at least one uplink transmission is sent by the first node, and any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

[0510] The above text combined Figures 1 to 4 The method embodiments of this application are described in detail below, in conjunction with... Figures 5 to 8 The present application provides a detailed description of the apparatus embodiments. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be found in the foregoing method embodiments.

[0511] Figure 5 This is a schematic diagram of the structure of a node used for wireless communication according to an embodiment of this application. Figure 5 The node 500 shown can be any of the first nodes described above. Node 500 may include a first transmitter 510.

[0512] The first transmitter 510 can be used to transmit at least one uplink transmission during a first transmission timing; wherein any one of the at least one uplink transmissions is one of a plurality of candidate transmissions; the priority of any one of the plurality of candidate transmissions is related to a first priority order; the first priority order is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first physical random access channel (PRACH) transmission, the first PRACH transmission belonging to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0513] As an example, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the cell where the first PRACH transmission is located.

[0514] As an example, the priority of the first PRACH transmission is related to the carrier on which the first PRACH is located.

[0515] As an example, any two PRACH transmission groups in the plurality of PRACH transmission groups may contain different numbers of PRACH transmissions, and the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs.

[0516] As an example, the plurality of PRACH transmission groups correspond to a plurality of priority indices, and the priority of the first PRACH transmission is related to the priority index corresponding to the PRACH transmission group to which the first PRACH transmission belongs.

[0517] As an example, the at least one uplink transmission includes the first PRACH transmission, and the first node further includes: a first receiver 520, which monitors a first random response within a first time window in response to the first PRACH transmission; the start of the first time window is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0518] As an example, the priority of the first PRACH transmission is related to the priority index of the first PRACH transmission, and the priority index of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0519] As one embodiment, it includes: a second receiver, receiving a first configuration signaling, the first configuration signaling being used to determine a plurality of candidate orders, the first priority order being one of the plurality of candidate orders; the PRACH transmission group to which the first PRACH transmission belongs being used to determine the first priority order from the plurality of candidate orders.

[0520] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; the plurality of candidate orders include a first candidate order and a second candidate order, wherein the first priority order is one of the first candidate order or the second candidate order; when the first PRACH transmission belongs to the first PRACH transmission group, the first priority order is the first candidate order; when the first PRACH transmission belongs to the second PRACH transmission group, the first priority order is the second candidate order.

[0521] As an example, the priority of the first PRACH transmission satisfies one or more of the following: the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Shared Channel (PUSCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Control Channel (PUCCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Sound Reference Signal (SRS) transmission.

[0522] As an example, the PUSCH transmission includes high-priority PUSCH transmission and low-priority PUSCH transmission, and the PUCCH transmission includes high-priority PUCCH transmission and low-priority PUCCH transmission. The priority of the first PRACH transmission satisfies one or more of the following: the first PRACH transmission has a higher priority than the high-priority PUSCH transmission; the first PRACH transmission has a higher priority than the high-priority PUCCH transmission; the first PRACH transmission has a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the high-priority PUSCH transmission but a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the high-priority PUCCH transmission but a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the low-priority PUCCH transmission.

[0523] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH belongs is the first PRACH transmission group, the priority of the first PRACH transmission is higher than the priority of any PRACH transmission in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH transmission belongs is the second PRACH transmission group, the priority of the first PRACH transmission is lower than the priority of any PRACH transmission in the first PRACH transmission group.

[0524] As one example, the first priority order is fixed or network-configured.

[0525] As an example, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0526] As an example, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

[0527] As one embodiment, the first transmitter 510 may be a transceiver 730. The first node 500 may also include a processor 710 and a memory 720, specifically as follows: Figure 7 As shown.

[0528] Figure 6 This is a schematic diagram of the structure of a node used for wireless communication, provided for another embodiment of this application. Figure 6 The node 600 shown can be any of the second nodes described above. Node 600 may include a first receiver 610.

[0529] The first receiver 610 can be used to receive at least one uplink transmission, which is transmitted during a first transmission; wherein any one of the at least one uplink transmissions is one of a plurality of candidate transmissions; the priority of any one of the plurality of candidate transmissions is related to a first priority order; the first priority order is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first physical random access channel (PRACH) transmission, which belongs to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0530] As an example, the priority of the first PRACH transmission is related to both the PRACH transmission group to which the first PRACH transmission belongs and the cell where the first PRACH transmission is located.

[0531] As an example, the priority of the first PRACH transmission is related to the carrier on which the first PRACH is located.

[0532] As an example, any two PRACH transmission groups in the plurality of PRACH transmission groups may contain different numbers of PRACH transmissions, and the priority of the first PRACH transmission is related to the number of PRACH transmissions included in the PRACH transmission group to which the first PRACH transmission belongs.

[0533] As an example, the plurality of PRACH transmission groups correspond to a plurality of priority indices, and the priority of the first PRACH transmission is related to the priority index corresponding to the PRACH transmission group to which the first PRACH transmission belongs.

[0534] As one embodiment, the at least one uplink transmission includes the first PRACH transmission, and the second node further includes: a first transmitter 620, which, in response to the first PRACH transmission, sends a first random response within a first time window; the start of the first time window is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0535] As an example, the priority of the first PRACH transmission is related to the priority index of the first PRACH transmission, and the priority index of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0536] As one embodiment, it includes: a second transmitter that transmits a first configuration signaling, the first configuration signaling being used to determine a plurality of candidate orders, the first priority order being one of the plurality of candidate orders; and the PRACH transmission group to which the first PRACH transmission belongs being used to determine the first priority order from the plurality of candidate orders.

[0537] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; the plurality of candidate orders include a first candidate order and a second candidate order, wherein the first priority order is one of the first candidate order or the second candidate order; when the first PRACH transmission belongs to the first PRACH transmission group, the first priority order is the first candidate order; when the first PRACH transmission belongs to the second PRACH transmission group, the first priority order is the second candidate order.

[0538] As an example, the priority of the first PRACH transmission satisfies one or more of the following: the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Shared Channel (PUSCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Physical Uplink Control Channel (PUCCH) transmission; the priority of the first PRACH transmission is higher than the priority of the Sound Reference Signal (SRS) transmission.

[0539] As an example, the PUSCH transmission includes high-priority PUSCH transmission and low-priority PUSCH transmission, and the PUCCH transmission includes high-priority PUCCH transmission and low-priority PUCCH transmission. The priority of the first PRACH transmission satisfies one or more of the following: the first PRACH transmission has a higher priority than the high-priority PUSCH transmission; the first PRACH transmission has a higher priority than the high-priority PUCCH transmission; the first PRACH transmission has a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the high-priority PUSCH transmission but a higher priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the high-priority PUCCH transmission but a higher priority than the low-priority PUCCH transmission; the first PRACH transmission has a lower priority than the low-priority PUSCH transmission; the first PRACH transmission has a lower priority than the low-priority PUCCH transmission.

[0540] As one embodiment, the plurality of PRACH transmission groups include a first PRACH transmission group and a second PRACH transmission group, wherein the number of PRACH transmissions included in the first PRACH transmission group is greater than the number of PRACH transmissions included in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH belongs is the first PRACH transmission group, the priority of the first PRACH transmission is higher than the priority of any PRACH transmission in the second PRACH transmission group; if the PRACH transmission group to which the first PRACH transmission belongs is the second PRACH transmission group, the priority of the first PRACH transmission is lower than the priority of any PRACH transmission in the first PRACH transmission group.

[0541] As one example, the first priority order is fixed or network-configured.

[0542] As an example, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

[0543] As an example, the at least one uplink transmission is sent by the first node, and any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including the first PRACH transmission. If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

[0544] As one embodiment, the first receiver 610 may be a transceiver 730. The second node 600 may further include a processor 710 and a memory 720, specifically as follows: Figure 7 As shown.

[0545] Figure 7 This is a schematic structural diagram of a communication device according to an embodiment of this application. Figure 7 The dashed lines in the diagram indicate that the unit or module is optional. The device 700 can be used to implement the methods described in the above method embodiments. The device 700 can be a chip, user equipment, or network device.

[0546] The apparatus 700 may include one or more processors 710. The processor 710 may support the apparatus 700 in implementing the methods described in the preceding method embodiments. The processor 710 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0547] The apparatus 700 may also include one or more memories 720. The memories 720 store a program that can be executed by the processor 710, causing the processor 710 to perform the methods described in the preceding method embodiments. The memories 720 may be independent of the processor 710 or integrated within the processor 710.

[0548] The device 700 may also include a transceiver 730. The processor 710 can communicate with other devices or chips via the transceiver 730. For example, the processor 710 can send and receive data with other devices or chips via the transceiver 730.

[0549] Figure 8 This is a schematic diagram of the hardware module of the communication device provided in an embodiment of this application. Specifically, Figure 8 A block diagram is shown of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0550] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0551] The second communication device 410 includes a controller / processor 475, a memory 476, a data source 477, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0552] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper-layer data packets from the core network or from the data source 477 are provided to the controller / processor 475. The core network and data source 477 represent all protocol layers above the L2 layer. The controller / processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation for the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmitting lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction at the second communication device 410, and mapping of signal clusters based on various modulation schemes (e.g., binary phase shift keying, quadrature phase shift keying, M-phase shift keying, M-quadrature amplitude modulation). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and then uses inverse fast Fourier transform to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by multi-antenna transmit processor 471 into an RF stream, which is then provided to different antennas 420.

[0553] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of Layer 1. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a fast Fourier transform to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted by the second communication device 410 over the physical channel. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover the upper-layer data packets from the second communication device 410. The upper-layer data packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing.

[0554] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, upper-layer data packets are provided to the controller / processor 459 using a data source 467. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between the logical and transport channels, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0555] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 storing program code and data. The memory 476 may be referred to as computer-readable media. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper-layer data packets from the first communication device 450. Upper-layer data packets from the controller / processor 475 can be provided to the core network or all protocol layers above the L2 layer, and various control signals can also be provided to the core network or L3 for L3 processing.

[0556] As one embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first communication device 450 at least: transmits at least one uplink transmission at a first transmission timing; wherein any of the at least one uplink transmission is one of a plurality of candidate transmissions; the priority order of the plurality of candidate transmissions is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first physical random access channel (PRACH) transmission, the first PRACH transmission belonging to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0557] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: transmitting at least one uplink transmission at a first transmission timing; wherein any of the at least one uplink transmission is one of a plurality of candidate transmissions; the priority order of the plurality of candidate transmissions is used to allocate power to the at least one uplink transmission; the plurality of candidate transmissions includes a first physical random access channel (PRACH) transmission, the first PRACH transmission belonging to one of a plurality of PRACH transmission groups; the priority of the first PRACH transmission is related to the PRACH transmission group to which the first PRACH transmission belongs.

[0558] As an example, the first communication device 450 corresponds to the first node in this application.

[0559] As an example, the second communication device 410 corresponds to the second node in this application.

[0560] As an example, the first communication device 450 is a user equipment.

[0561] As an example, the first communication device 450 is an NCR.

[0562] As an example, the first communication device 450 is a wireless repeater.

[0563] As an example, the first communication device 450 is a relay.

[0564] As an example, the first communication device 450 is a V2X-enabled user equipment.

[0565] As an example, the first communication device 450 is a D2D-enabled user equipment.

[0566] As one embodiment, the second communication device 410 is a base station.

[0567] As one embodiment, the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmitter processor 468, and the controller / processor 459 are used to transmit at least one uplink transmission in this application.

[0568] As one embodiment, the antenna 420, the receiver 418, the multi-antenna receiver processor 472, the receiver processor 470, and the controller / processor 475 are used to receive at least one uplink transmission in this application.

[0569] As one embodiment, the antenna 452, the receiver 454, the multi-antenna receiver processor 458, the receiver processor 456, and the controller / processor 459 are used to monitor the first random response in this application.

[0570] As one embodiment, the antenna 420, the transmitter 418, the multi-antenna transmitter processor 471, the transmitter processor 416, and the controller / processor 475 are used to transmit the first random response in this application.

[0571] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal or network device provided in this application, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0572] This application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal or network device provided in this application embodiment, and the program causes a computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0573] This application also provides a computer program. This computer program can be applied to the terminal or network device provided in this application, and the computer program causes the computer to execute the methods performed by the terminal or network device in various embodiments of this application.

[0574] It should be understood that the terms "system" and "network" in this application can be used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0575] In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0576] In the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0577] In the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0578] In this application embodiment, "predefined" or "preconfigured" 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 user equipment and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0579] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0580] In the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0581] In the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0582] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0583] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0584] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0585] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0586] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A first node used for wireless communication, characterized in that, include: The first transmitter sends at least one uplink transmission at the first transmission time. Wherein, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including a first physical random access channel (PRACH) transmission; the first PRACH transmission belongs to one of a plurality of PRACH transmission groups, and the number of PRACH transmissions included in any one of the plurality of PRACH transmission groups is one of {2, 4, 8}; a first priority order is used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs, or whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs, or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs, or whether to reduce the transmit power of part of the PRACH transmissions in the first PRACH transmission group.

2. The first node according to claim 1, characterized in that, The multiple uplink transmissions to be sent include one or more of the following: single PRACH transmission, repeated PRACH transmission.

3. The first node according to claim 1 or 2, characterized in that, Any one of the multiple uplink transmissions to be sent is one of multiple candidate transmissions, and the priority of any one of the multiple candidate transmissions is related to the first priority order.

4. The first node according to any one of claims 1-3, characterized in that, The first priority order is fixed.

5. The first node according to any one of claims 1-4, characterized in that, If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

6. The first node according to any one of claims 1-4, characterized in that, If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

7. A second node used for wireless communication, characterized in that, include: A first receiver receives at least one uplink transmission, which is transmitted during a first transmission. Wherein, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including a first physical random access channel (PRACH) transmission; the first PRACH transmission belongs to one of a plurality of PRACH transmission groups, and the number of PRACH transmissions included in any one of the plurality of PRACH transmission groups is one of {2, 4, 8}; a first priority order is used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs, or whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs, or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs, or whether to reduce the transmit power of part of the PRACH transmissions in the first PRACH transmission group.

8. The second node according to claim 7, characterized in that, The multiple uplink transmissions to be sent include one or more of the following: single PRACH transmission, repeated PRACH transmission.

9. The second node according to claim 7 or 8, characterized in that, Any one of the multiple uplink transmissions to be sent is one of multiple candidate transmissions, and the priority of any one of the multiple candidate transmissions is related to the first priority order.

10. The second node according to any one of claims 7-9, characterized in that, The first priority order is fixed.

11. The second node according to any one of claims 7-10, characterized in that, If the at least one uplink transmission is sent by the first node, and the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

12. The second node according to any one of claims 7-10, characterized in that, If the at least one uplink transmission is sent by the first node, and the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

13. A method used in a first node of wireless communication, characterized in that, include: Send at least one uplink transmission at the first transmission opportunity; Wherein, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including a first physical random access channel (PRACH) transmission; the first PRACH transmission belongs to one of a plurality of PRACH transmission groups, and the number of PRACH transmissions included in any one of the plurality of PRACH transmission groups is one of {2, 4, 8}; a first priority order is used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs, or whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs, or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs, or whether to reduce the transmit power of part of the PRACH transmissions in the first PRACH transmission group.

14. The method according to claim 13, characterized in that, The multiple uplink transmissions to be sent include one or more of the following: single PRACH transmission, repeated PRACH transmission.

15. The method according to claim 13 or 14, characterized in that, Any one of the multiple uplink transmissions to be sent is one of multiple candidate transmissions, and the priority of any one of the multiple candidate transmissions is related to the first priority order.

16. The method according to any one of claims 13-15, characterized in that, The first priority order is fixed.

17. The method according to any one of claims 13-16, characterized in that, If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

18. The method according to any one of claims 13-16, characterized in that, If the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

19. A method used in a second node of wireless communication, characterized in that, include: Receive at least one uplink transmission, said at least one uplink transmission being sent during a first transmission timing; Wherein, any one of the at least one uplink transmissions is one of a plurality of uplink transmissions to be transmitted, the plurality of uplink transmissions to be transmitted including a first physical random access channel (PRACH) transmission; the first PRACH transmission belongs to one of a plurality of PRACH transmission groups, and the number of PRACH transmissions included in any one of the plurality of PRACH transmission groups is one of {2, 4, 8}; a first priority order is used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs, or whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs, or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs, or whether to reduce the transmit power of part of the PRACH transmissions in the first PRACH transmission group.

20. The method according to claim 19, characterized in that, The multiple uplink transmissions to be sent include one or more of the following: single PRACH transmission, repeated PRACH transmission.

21. The method according to claim 19 or 20, characterized in that, Any one of the multiple uplink transmissions to be sent is one of multiple candidate transmissions, and the priority of any one of the multiple candidate transmissions is related to the first priority order.

22. The method according to any one of claims 19-21, characterized in that, The first priority order is fixed.

23. The method according to any one of claims 19-22, characterized in that, If the at least one uplink transmission is sent by the first node, and the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of the highest priority transmission among the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of the PRACH transmission group to which the first PRACH transmission belongs.

24. The method according to any one of claims 19-22, characterized in that, If the at least one uplink transmission is sent by the first node, and the total transmit power of the plurality of uplink transmissions to be transmitted exceeds the maximum transmit power of the first node at one or more transmission times, the priority of any PRACH transmission in the PRACH transmission group to which the first PRACH transmission belongs and the priority of each of the other transmissions in the plurality of uplink transmissions to be transmitted are used to determine whether to abandon part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs or whether to reduce the transmit power of part of the PRACH transmissions in the PRACH transmission group to which the first PRACH transmission belongs.

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