Transmission power-related method and apparatus for node used for wireless communication

Abstract

The present application discloses a transmission power-related method and apparatus for a first node used for wireless communication. A first receiver receives uplink and downlink TDD configuration signaling; and a first transmitter transmits a first signal on a first cell group, first power being the transmission power of the first signal, wherein first reference power is configured for the first node, whether the first node uses the first reference power as the maximum transmission power to determine the first power depends on whether time-domain resources of the first signal overlap with at least one first-type symbol belonging to first-type time-domain resources, the first-type symbol is a symbol of a time slot of a second cell group, the second cell group is different from the first cell group, and the first-type time-domain resources comprise a symbol indicated by the uplink and downlink TDD configuration signaling as a downlink and available for uplink transmission.

Description

A method and apparatus related to transmission power in a node used for wireless communication Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and in particular to a transmission method and apparatus for wireless signals in a wireless communication system supporting a cellular network. Background Art

[0002] In existing NR (New Radio) systems, spectrum resources are statically divided into FDD (Frequency Division Duplex) and TDD (Time Division Duplex) spectrum. For TDD spectrum, both base stations and user equipment (UE) operate in half-duplex mode. This half-duplex mode avoids self-interference and mitigates the impact of cross-link interference (CLI), but it also leads to reduced resource utilization and increased latency. To address these issues, supporting flexible duplex modes or variable link directions (uplink, downlink, or flexible) in TDD or FDD spectrum has become a possible solution. The 3GPP (3rd Generation Partnership Project) RAN (Radio Access Network) 1#103e meeting agreed to research on duplex technologies, specifically the proposed Subband Non-Overlapping Full Duplex (SBFD) mode for gNB (NR Node B). In this mode, the same symbol will be used for uplink in part of the frequency resources and for downlink in another part of the frequency resources, thereby improving resource utilization and reducing latency. Summary of the Invention

[0003] In a scenario where symbols indicated as downlink by uplink and downlink TDD configuration signaling and available for uplink transmission are configured, how to determine the transmission power of the signal on a cell group is an important issue that needs to be considered; the present application discloses a solution to the above problem. It should be noted that the present application can be applied to a variety of wireless communication scenarios, such as scenarios using SBFD mode, scenarios using other types of full-duplex modes other than SBFD, scenarios using more flexible duplex modes, scenarios supporting only half-duplex mode, etc., and achieve similar technical effects. In addition, the use of a unified solution for different scenarios (including but not limited to scenarios using SBFD mode, scenarios using other types of full-duplex modes other than SBFD, scenarios using more flexible duplex modes, scenarios supporting only half-duplex mode) can also help reduce hardware complexity and cost, or improve performance. In the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily.

[0004] Where necessary, the interpretation of the terms in this application may refer to the description of 3GPP specification protocols TS36 series, TS37 series and TS38 series.

[0005] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0006] Receive uplink and downlink TDD configuration signaling;

[0007] Sending a first signal on a first cell group, where the first power is a transmission power of the first signal;

[0008] In which, a first reference power is configured to the first node, and whether the first node uses the first reference power as the maximum transmit power to determine whether the time domain resources of the first signal depend on the overlap with at least one first type of symbol belonging to the first type of time domain resources, the first type of symbol is the symbol of the time slot of the second cell group, the second cell group is different from the first cell group, and the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0009] As an embodiment, the problem to be solved by the present application includes: how to determine the transmission power of the first signal.

[0010] As an embodiment, the problem to be solved by the present application includes: in a scenario where symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission are configured, how to enhance the power control of signal transmission under dual connectivity configuration.

[0011] As an embodiment, the problem to be solved by this application includes: how to optimize uplink interference control.

[0012] As an embodiment, the above method is applicable to a scenario in which symbols indicated as downlink by the uplink and downlink TDD configuration signaling and usable for uplink transmission are configured. The above method is beneficial for optimizing power control under dual connectivity configuration in such a scenario.

[0013] As an embodiment, the benefits of the above method include: being conducive to optimizing the power control of the first signal.

[0014] As an embodiment, the benefits of the above method include: being beneficial to UE energy saving.

[0015] As an embodiment, the benefits of the above method include: being conducive to enhancing uplink interference control.

[0016] As an embodiment, the above method is beneficial to improving the performance of a system supporting dual connectivity including a cell group adopting full-duplex mode.

[0017] As an embodiment, the benefits of the above method include: facilitating enhanced uplink interference control in a system employing full-duplex operation.

[0018] As an embodiment, the advantages of the above method include: the workload required for standardization is small.

[0019] According to one aspect of the present application, the above method is characterized in that:

[0020] When the time domain resource of the first signal overlaps with at least one first-category symbol belonging to the first-category time domain resource, the first node determines the first power using the first reference power as the maximum transmit power.

[0021] As an embodiment, the characteristics of the above method include: when the time domain resources of the first signal overlap with at least one first-type symbol indicated by the uplink and downlink TDD configuration signaling as downlink and can be used for uplink transmission, the first node uses the first reference power as the maximum transmit power to determine the first power; in the scenario where symbols indicated by the uplink and downlink TDD configuration signaling as downlink and can be used for uplink transmission are configured, such characteristics are conducive to ensuring that the total transmit power of the first node in the first cell group and the second cell group does not exceed the maximum allowed transmit power, thereby optimizing spectrum efficiency.

[0022] As an embodiment, the benefits of the above method include: being conducive to reducing interference between uplink and downlink.

[0023] According to one aspect of the present application, the above method is characterized in that:

[0024] When the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the first node determines the first power without considering the first reference power as the maximum transmission power.

[0025] As an embodiment, the benefits of the above method include: being conducive to fully utilizing the allowed transmission power to send the first signal, thereby improving the transmission reliability of the first signal.

[0026] According to one aspect of the present application, the above method is characterized in that:

[0027] The time domain resource of the first signal is: the subframe where the first signal is located.

[0028] According to one aspect of the present application, the above method is characterized in that:

[0029] The first reference power is configured by RRC signaling.

[0030] According to one aspect of the present application, the above method is characterized in that:

[0031] The first cell group is an SCG, and the second cell group is an MCG.

[0032] According to one aspect of the present application, the above method is characterized in that:

[0033] The first cell group is an MCG and the second cell group is an SCG.

[0034] According to one aspect of the present application, the above method is characterized in that:

[0035] The uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0036] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0037] Send uplink and downlink TDD configuration signaling;

[0038] receiving a first signal on a first cell group, where the first power is a transmit power of the first signal;

[0039] In which, a first reference power is configured to the transmitter of the first signal, and whether the first reference power is used as the maximum transmit power to determine whether the time domain resources on which the first power depends on the first signal overlap with at least one first type of symbol belonging to the first type of time domain resources, the first type of symbol is the symbol of the time slot of the second cell group, the second cell group is different from the first cell group, and the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0040] According to one aspect of the present application, the above method is characterized in that:

[0041] When the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the second node may assume that the transmitter of the first signal uses the first reference power as the maximum transmission power to determine the first power.

[0042] According to one aspect of the present application, the above method is characterized in that:

[0043] When the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the second node may assume that the transmitter of the first signal determines the first power without considering the first reference power as the maximum transmission power.

[0044] According to one aspect of the present application, the above method is characterized in that:

[0045] The time domain resource of the first signal is: the subframe where the first signal is located.

[0046] According to one aspect of the present application, the above method is characterized in that:

[0047] The first reference power is configured by RRC signaling.

[0048] According to one aspect of the present application, the above method is characterized in that:

[0049] The first cell group is an SCG, and the second cell group is an MCG.

[0050] According to one aspect of the present application, the above method is characterized in that:

[0051] The first cell group is an MCG and the second cell group is an SCG.

[0052] According to one aspect of the present application, the above method is characterized in that:

[0053] The uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0054] The present application discloses a first node used for wireless communication, characterized by comprising:

[0055] A first receiver receives uplink and downlink TDD configuration signaling;

[0056] A first transmitter is configured to transmit a first signal on a first cell group, wherein the first power is a transmission power of the first signal;

[0057] In which, a first reference power is configured to the first node, and whether the first node uses the first reference power as the maximum transmit power to determine whether the time domain resources of the first signal depend on the overlap with at least one first type of symbol belonging to the first type of time domain resources, the first type of symbol is the symbol of the time slot of the second cell group, the second cell group is different from the first cell group, and the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0058] The present application discloses a second node used for wireless communication, characterized by comprising:

[0059] A second transmitter sends uplink and downlink TDD configuration signaling;

[0060] a second receiver, receiving a first signal on a first cell group, wherein the first power is a transmit power of the first signal;

[0061] In which, a first reference power is configured to the transmitter of the first signal, and whether the first reference power is used as the maximum transmit power to determine whether the time domain resources on which the first power depends on the first signal overlap with at least one first type of symbol belonging to the first type of time domain resources, the first type of symbol is the symbol of the time slot of the second cell group, the second cell group is different from the first cell group, and the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0063] FIG1 shows a processing flow chart of a first node according to an embodiment of the present application;

[0064] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0065] FIG3 shows a schematic diagram of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0066] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0067] FIG5 shows a signal transmission flow chart according to an embodiment of the present application;

[0068] FIG6 is a schematic diagram illustrating whether a first node uses a first reference power as a maximum transmit power to determine whether a time domain resource of a first power-dependent first signal overlaps with at least one first-category symbol belonging to a first-category time domain resource according to an embodiment of the present application;

[0069] FIG7 is a schematic diagram illustrating a first node determining a first power according to an embodiment of the present application;

[0070] FIG8 is a schematic diagram illustrating a first node determining a first power according to an embodiment of the present application;

[0071] FIG9 shows a P according to an embodiment of the present application. CMAX A schematic diagram illustrating the settings;

[0072] FIG10 shows a schematic diagram illustrating a first type of time domain resources according to an embodiment of the present application;

[0073] FIG11 shows a structural block diagram of a processing device in a first node device according to an embodiment of the present application;

[0074] FIG12 shows a structural block diagram of a processing device in a second node device according to an embodiment of the present application. DETAILED DESCRIPTION

[0075] The technical solution of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

[0076] Example 1

[0077] Example 1 illustrates a processing flow chart of a first node according to an embodiment of the present application, as shown in FIG1 .

[0078] In embodiment 1, the first node in the present application receives uplink and downlink TDD configuration signaling in step 101; and sends a first signal on the first cell group in step 102.

[0079] In embodiment 1, the first power is the transmission power of the first signal; the first reference power is configured to the first node, and whether the first node uses the first reference power as the maximum transmission power to determine whether the first power depends on whether the time domain resources of the first signal overlap with at least one first type of symbol belonging to the first type of time domain resources, the first type of symbol is the symbol of the time slot of the second cell group, the second cell group is different from the first cell group, and the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0080] As an embodiment, the first cell group includes at least one cell.

[0081] As an embodiment, the second cell group includes at least one cell.

[0082] As an embodiment, the first cell group includes only one cell.

[0083] As an embodiment, the second cell group includes only one cell.

[0084] As an embodiment, the benefits of the above method include: being conducive to reducing the processing overhead of the UE.

[0085] As an embodiment, the first cell group includes multiple cells.

[0086] As an embodiment, the second cell group includes multiple cells.

[0087] As an embodiment, the benefits of the above method include: being conducive to improving data transmission rate.

[0088] As an embodiment, the first cell group is configurable.

[0089] As an embodiment, the second cell group is configurable.

[0090] As an embodiment, a cell included in the first cell group is a serving cell.

[0091] As an embodiment, a cell included in the second cell group is a serving cell.

[0092] As an embodiment, the first cell group and the second cell group are two cell groups under a dual connectivity configuration.

[0093] As an embodiment, the second cell group is different from the first cell group in that: the first cell group is an SCG (Secondary cell group) and the second cell group is an MCG (Master cell group).

[0094] As an embodiment, the second cell group is different from the first cell group in that: the second cell group is SCG and the first cell group is MCG.

[0095] As an embodiment, the first signal includes a wireless signal.

[0096] As an embodiment, the first signal is an uplink signal.

[0097] As an embodiment, the first signal is scheduled by DCI (Downlink control information).

[0098] As an embodiment, the first signal is triggered by DCI.

[0099] As an embodiment, the first signal is semi-statically configured.

[0100] As an embodiment, when the first node sends the first signal on a cell in the first cell group, the first node sends the first signal on the first cell group.

[0101] As an embodiment, the frequency domain resources occupied by the signal transmitted on a cell group belong to the frequency domain resources allocated to at least one cell included in the cell group.

[0102] As an embodiment, the first signal is PUSCH.

[0103] As an embodiment, the first signal is PUSCH; sending the first signal means: sending at least one of a transport block (transport block(s)) and a CSI (Channel state information) report (CSI report(s)) on PUSCH.

[0104] As an embodiment, the benefits of the above method include: being conducive to optimizing power control of a shared channel.

[0105] As an embodiment, the first signal is PUCCH.

[0106] As an embodiment, the first signal is PUCCH; sending the first signal means: sending UCI (Uplink control information) on PUCCH.

[0107] As an embodiment, the benefits of the above method include: being conducive to optimizing power control of the control channel.

[0108] As an embodiment, the first signal is PRACH.

[0109] As an embodiment, the benefits of the above method include: being beneficial to power control of random access channels.

[0110] As an embodiment, the first reference power is configured by p-MaxEUTRA.

[0111] As an embodiment, the benefits of the above method include: facilitating application of the method disclosed in the present application to NE-DC (New Radio E-UTRA Dual Connectivity).

[0112] As an embodiment, the first reference power is configured by p-NR-FR1.

[0113] As an embodiment, the first reference power is configured by p-NR-FR2.

[0114] As an embodiment, the first reference power is configured by parameters defined in the RRC protocol specification of NR (New Radio).

[0115] As an embodiment, combined with the above features, the method disclosed in this application has good compatibility with the protocol specification of 5G NR.

[0116] As an embodiment, the first reference power is configured by RRC signaling.

[0117] As an embodiment, semi-static-mode2 for nrdc-PCmode-FR1 is provided to the first node.

[0118] As an embodiment, semi-static-mode2 for nrdc-PCmode-FR2 is provided to the first node.

[0119] As an embodiment, the first cell group is an SCG, the second cell group is an MCG, and the second cell group is in FR1 (Frequency range 1).

[0120] As an embodiment, the first cell group is one of SCG and MCG, and the second cell group is the other of SCG and MCG.

[0121] As an embodiment, the total transmission power of the first node on the first cell group and the second cell group is limited, and the upper limit of the total transmission power is configurable.

[0122] As an embodiment, when the total transmission power of the signals to be sent by the first node on the first cell group and the second cell group exceeds an upper limit, the first node reduces the transmission power of the signals on the second cell group to ensure that the total transmission power does not exceed the upper limit.

[0123] As an embodiment, the first node is configured with a reference TDD configuration for E-UTRA; when a subframe on the first cell group is an uplink subframe in the reference TDD configuration, the first node does not want to send a signal in the corresponding time slot on the second cell group.

[0124] As an embodiment, from a time domain perspective, the time domain resource of the first signal is used for transmission of the first signal.

[0125] As an embodiment, the time domain resource of the first signal is: the subframe where the first signal is located.

[0126] As an embodiment, the time domain resource of the first signal is: a symbol (symbol(s) for the first signal).

[0127] As an embodiment, the time domain resource of the first signal is: a symbol used for the first signal that overlaps with a time slot of the first cell group.

[0128] As an embodiment, a symbol in the present application is a symbol in a time slot.

[0129] As an embodiment, a symbol in the present application is an OFDM (Orthogonal Frequency Division Multiplex) symbol.

[0130] As an embodiment, a symbol in the present application is a SC-FDMA (Single-carrier Frequency-Division Multiple Access) symbol.

[0131] As an embodiment, the first signal overlaps with a time slot of the first cell group.

[0132] As an embodiment, the time slot of a cell group is a time slot configured for a cell in the cell group.

[0133] As an embodiment, the time slot of a cell group is a time slot configured for at least one cell in the cell group.

[0134] As an embodiment, a cell group includes at least one serving cell.

[0135] As an embodiment, the first type of symbols are OFDM symbols.

[0136] As an embodiment, the statement “whether the first node uses the first reference power as the maximum transmit power to determine whether the time domain resource of the first power-dependent first signal overlaps with at least one first-category symbol belonging to the first-category time domain resource” includes:

[0137] When the time domain resources of the first signal overlap with at least one first-class symbol belonging to the first class of time domain resources, the first node uses the first reference power as the maximum transmission power to determine the first power; when the time domain resources of the first signal do not overlap with the first-class symbol belonging to the first class of time domain resources, the first node determines the first power without considering the first reference power.

[0138] As an embodiment, the benefits of the above method include: being conducive to optimizing spectrum efficiency.

[0139] As an embodiment, the statement “whether the first node uses the first reference power as the maximum transmit power to determine whether the time domain resource of the first power-dependent first signal overlaps with at least one first-category symbol belonging to the first-category time domain resource” includes:

[0140] When the time domain resources of the first signal overlap with at least one first-class symbol belonging to the first class of time domain resources, the first node uses the first reference power as the maximum transmission power to determine the first power; when the time domain resources of the first signal do not overlap with the first-class symbol belonging to the first class of time domain resources, the first node determines the first power without considering the first reference power as the maximum transmission power.

[0141] As an embodiment, the benefits of the above method include: being conducive to optimizing spectrum efficiency.

[0142] As an embodiment, if the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power; otherwise, the first node does not use the first reference power as the maximum transmit power to determine the first power.

[0143] As an embodiment, the first node does not use the first reference power as the maximum transmit power to determine the first power, including: the first node determines the first power without considering the first reference power.

[0144] As an embodiment, the first node does not use the first reference power as the maximum transmit power to determine the first power, including: the first node determines the first power without considering the first reference power as the maximum transmit power.

[0145] As an embodiment, if the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power; otherwise, the first node determines the first power without considering the first reference power.

[0146] As an embodiment, the benefits of the above method include: being conducive to optimizing spectrum efficiency.

[0147] As an embodiment, if the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power; otherwise, the first node determines the first power without considering the first reference power as the maximum transmit power.

[0148] As an embodiment, the benefits of the above method include: being conducive to optimizing spectrum efficiency.

[0149] As an embodiment, when the time domain resources of the first signal overlap with at least one first-type symbol indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission, the first node uses the first reference power as the maximum transmit power to determine the first power.

[0150] As an embodiment, the benefits of the above method include: being conducive to optimizing spectrum efficiency.

[0151] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the first node does not use the first reference power as the maximum transmit power to determine the first power.

[0152] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the first node determines the first power without considering the first reference power as the maximum transmission power.

[0153] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the first node determines the first power without considering the first reference power.

[0154] As an embodiment, the time domain resources of the first signal do not overlap with the first category of symbols belonging to the first category of time domain resources, which means that the time domain resources of the first signal do not overlap with any first category of symbols belonging to the first category of time domain resources.

[0155] As an embodiment, the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, which means that the condition that the time domain resources of the first signal overlap with at least one first type of symbols belonging to the first type of time domain resources is not met.

[0156] As an embodiment, the first type of time domain resources are symbols (symbol(s)) indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0157] As an embodiment, the first type of time domain resources includes symbols indicated as uplink by the uplink and downlink TDD configuration signaling.

[0158] As an embodiment, the first type of time domain resources includes symbols indicated as flexible by the uplink and downlink TDD configuration signaling.

[0159] As an embodiment, the first type of time domain resources includes symbols indicated as uplink or flexible by the uplink and downlink TDD configuration signaling.

[0160] As an embodiment, whether a symbol indicated as downlink by the uplink / downlink TDD configuration signaling can be used for uplink transmission is configurable.

[0161] As an embodiment, the benefits of the above method include: being conducive to improving uplink capacity.

[0162] As an embodiment, the benefits of the above method include: being conducive to supporting full-duplex operation.

[0163] As an embodiment, the statement “whether the first node uses the first reference power as the maximum transmit power to determine whether the time domain resource of the first power-dependent first signal overlaps with at least one first-category symbol belonging to the first-category time domain resource” includes:

[0164] When the time domain resources of the first signal overlap with at least one first-class symbol belonging to the first class of time domain resources, the first node uses the first reference power as the maximum transmission power to determine the first power; when the time domain resources of the first signal do not overlap with the first-class symbol belonging to the second class of time domain resources, the first node determines the first power without considering at least the first reference power; the first class of time domain resources is a proper subset of the second class of time domain resources.

[0165] As an embodiment, the statement “whether the first node uses the first reference power as the maximum transmit power to determine whether the time domain resource of the first power-dependent first signal overlaps with at least one first-category symbol belonging to the first-category time domain resource” includes:

[0166] When the time domain resources of the first signal overlap with at least one first-class symbol belonging to the first class of time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power; when the time domain resources of the first signal do not overlap with the first-class symbol belonging to the second class of time domain resources, the first node determines the first power without considering at least the first reference power as the maximum transmit power; the first class of time domain resources is a proper subset of the second class of time domain resources.

[0167] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first category of time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power; when the time domain resources of the first signal do not overlap with the first-category symbol belonging to the second category of time domain resources, the first node does not use at least the first reference power as the maximum transmit power to determine the first power; the first category of time domain resources is a true subset of the second category of time domain resources.

[0168] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first category of time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power; when the time domain resources of the first signal do not overlap with the first-category symbol belonging to the second category of time domain resources, the first node determines the first power without considering at least the first reference power; the first category of time domain resources is a true subset of the second category of time domain resources.

[0169] As an embodiment, the benefits of the above method include: being conducive to optimizing spectrum efficiency.

[0170] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first category of time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power; when the time domain resources of the first signal do not overlap with the first-category symbol belonging to the second category of time domain resources, the first node determines the first power without considering at least the first reference power as the maximum transmit power; the first category of time domain resources is a true subset of the second category of time domain resources.

[0171] As an embodiment, the benefits of the above method include: being conducive to optimizing spectrum efficiency.

[0172] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the second-category time domain resources and not belonging to the first time domain resources, the first node does not use the first reference power as the maximum transmit power to determine the first power.

[0173] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the second-category time domain resources and not belonging to the first time domain resources, the first node uses the second reference power as the maximum transmit power to determine the first power.

[0174] As an embodiment, the advantages of the above method include: high configuration flexibility.

[0175] As an embodiment, the second reference power is configured for the first node.

[0176] As an embodiment, the second reference power is configured by p-MaxEUTRA.

[0177] As a sub-embodiment of the above embodiment, the first reference power is not configured by p-MaxEUTRA.

[0178] As an embodiment, the second reference power is configured by p-NR-FR1.

[0179] As a sub-embodiment of the foregoing embodiment, the first reference power is not configured by p-NR-FR1.

[0180] As an embodiment, the second reference power is configured by p-NR-FR2.

[0181] As a sub-embodiment of the foregoing embodiment, the first reference power is not configured by p-NR-FR2.

[0182] As an embodiment, the second reference power is configured by parameters defined in the RRC protocol specification of NR (New Radio).

[0183] As an embodiment, the second reference power is configured by RRC signaling.

[0184] As an embodiment, the first reference power and the second reference power are respectively configured to the first node by different RRC signaling.

[0185] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the second type of time domain resources, the first node does not use the first reference power nor uses the first reference power as the maximum transmit power to determine the first power.

[0186] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the second type of time domain resources, the first node determines the first power without considering the first reference power or the second reference power.

[0187] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the second type of time domain resources, the first node determines the first power without considering the first reference power as the maximum transmission power or the second reference power as the maximum transmission power.

[0188] As an embodiment, whether the time domain resource of the first signal overlaps with at least one first-category symbol belonging to the first-category time domain resource is in terms of the time domain.

[0189] As an embodiment, the second type of time domain resources includes symbols indicated as uplink by the uplink and downlink TDD configuration signaling.

[0190] As an embodiment, the second type of time domain resources includes symbols indicated as flexible by the uplink and downlink TDD configuration signaling.

[0191] As an embodiment, the first type of time domain resources does not include symbols indicated as uplink by the uplink and downlink TDD configuration signaling.

[0192] As an embodiment, the first type of time domain resources does not include symbols indicated as flexible by the uplink and downlink TDD configuration signaling.

[0193] As an embodiment, the meaning that the first node does not use a reference power as the maximum transmission power to determine the first power includes: the reference power is not used as the maximum transmission power to limit the size of the first power.

[0194] As an embodiment, the meaning that the first node determines the first power without considering a reference power includes: the reference power is not used as the maximum transmission power to limit the size of the first power.

[0195] As an embodiment, the meaning of the first node determining the first power without considering a reference power includes: the first node determines the first power without considering the reference power as the maximum transmission power.

[0196] As an embodiment, the meaning of the first node determining the first power without considering a reference power as the maximum transmission power includes: the reference power is not used as the maximum transmission power to limit the size of the first power.

[0197] Example 2

[0198] Example 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in FIG2 .

[0199] FIG2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as an EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, an NG-RAN (Next Generation Radio Access Network) 202, an EPC (Evolved Packet Core) / 5G-CN (5G-Core Network) 210, a Home Subscriber Server (HSS) 220, and an Internet service provider 230. The EPS may interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented herein may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes an NR Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol termination towards the UE 201. The gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). The gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter receive node), or some other appropriate terminology. The gNB 203 provides an access point to the EPC / 5G-CN 210 for the UE 201. Examples of UE 201 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband IoT device, a machine-type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device. Those skilled in the art may also refer to UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology. gNB 203 is connected to EPC / 5G-CN 210 via an S1 / NG interface.The EPC / 5G-CN 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / UPF (User Plane Function) 211, other MME / AMF / UPF 214, the S-GW (Service Gateway) 212, and the P-GW (Packet Data Network Gateway) 213. The MME / AMF / UPF 211 is the control node that handles signaling between the UE 201 and the EPC / 5G-CN 210. Generally, the MME / AMF / UPF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW 212, which itself is connected to the P-GW 213. The P-GW 213 provides UE IP address allocation and other functions. The P-GW 213 is connected to the Internet service 230. Internet services 230 include operator-specific Internet protocol services, which may include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0200] As an embodiment, the UE201 corresponds to the first node in this application.

[0201] As an embodiment, the gNB203 corresponds to the second node in this application.

[0202] As an embodiment, the UE201 corresponds to the first node in this application, and the gNB203 corresponds to the second node in this application.

[0203] As an embodiment, the gNB203 is a macrocellular base station.

[0204] As an embodiment, the gNB203 is a micro cell base station.

[0205] As an embodiment, the gNB203 is a picocell (PicoCell) base station.

[0206] As an embodiment, the gNB203 is a home base station (Femtocell).

[0207] As an embodiment, the gNB203 is a base station device that supports large delay difference.

[0208] As an embodiment, the gNB203 is a flying platform device.

[0209] As an embodiment, the gNB203 is a satellite device.

[0210] Example 3

[0211] Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in FIG3 . FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture for a first communication node device (UE, gNB, or RSU in V2X) and a second communication node device (gNB, UE, or RSU in V2X), or the control plane 300 between two UEs, using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the first and second communication node devices, as well as the two UEs, via PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first communication node device between the second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355. However, the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity. Although not shown in the figure, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0212] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0213] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0214] As an embodiment, the uplink and downlink TDD configuration signaling in this application is generated in the RRC sublayer 306.

[0215] As an embodiment, the configuration information of the first reference power in the present application is generated in the RRC sublayer 306.

[0216] As an embodiment, the configuration information of the second reference power in the present application is generated in the RRC sublayer 306.

[0217] As an embodiment, the first signal in the present application is generated by the PHY301.

[0218] As an embodiment, the first signal in the present application is generated by the PHY351.

[0219] Example 4

[0220] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0221] The first communications device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 , and an antenna 420 .

[0222] The second communication device 450 includes a controller / processor 459 , a memory 460 , a data source 467 , a transmit processor 468 , a receive processor 456 , a multi-antenna transmit processor 457 , a multi-antenna receive processor 458 , a transmitter / receiver 454 and an antenna 452 .

[0223] During transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. During transmission from the first 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 allocation of radio resources to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the second 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). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The 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 multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0224] During transmission from the first communications device 410 to the second communications device 450, each receiver 454 at the second communications device 450 receives a signal via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various L1 signal processing functions. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream, after the receive analog precoding / beamforming operations, from the time domain to the frequency domain using a fast Fourier transform (FFT). In the frequency domain, the receive processor 456 demultiplexes the physical layer data signal and reference signal, where the reference signal is used for channel estimation. The data signal undergoes multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the second communications device 450. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communications device 410 on 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 the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. During transmission from the first communications device 410 to the second communications device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 layer for L3 processing.

[0225] During transmission from the second communication device 450 to the first communication device 410, a data source 467 is used at the second communication device 450 to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functionality at the first communication device 410 described in the transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmission of lost packets and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. The transmit processor 468 then modulates the resulting spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, the stream is provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a RF symbol stream before providing it to the antenna 452.

[0226] During transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the reception functionality at the second communication device 450 described for transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 layer functionality. The controller / processor 475 implements L2 layer functionality. The controller / processor 475 may be associated with a memory 476 storing program codes and data. The memory 476 may be referred to as a computer-readable medium. During transmission from the second communication device 450 to the first communication device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0227] As an embodiment, the first node in the present application includes the second communication device 450 , and the second node in the present application includes the first communication device 410 .

[0228] As a sub-embodiment of the above embodiment, the first node is a user equipment, and the second node is a relay node.

[0229] As a sub-embodiment of the above embodiment, the first node is a user equipment, and the second node is a base station device.

[0230] As a sub-embodiment of the above embodiment, the first node is a relay node, and the second node is a base station device.

[0231] As an embodiment, the second 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 together with the at least one processor. The second communication device 450 device at least: receives uplink and downlink TDD configuration signaling; transmits a first signal on a first cell group, and the first power is the transmit power of the first signal; wherein the first reference power is configured for the first node, and whether the first node uses the first reference power as the maximum transmit power to determine whether the first power depends on whether the time domain resource of the first signal overlaps with at least one first type of symbol belonging to the first type of time domain resource, the first type of symbol is a symbol of a time slot of a second cell group, the second cell group is different from the first cell group, and the first type of time domain resource includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0232] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0233] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: receiving uplink and downlink TDD configuration signaling; sending a first signal on a first cell group, the first power being the transmission power of the first signal; wherein the first reference power is configured to the first node, and whether the first node uses the first reference power as the maximum transmission power to determine whether the first power depends on whether the time domain resources of the first signal overlap with at least one first type of symbol belonging to the first type of time domain resources, the first type of symbol being a symbol of a time slot of a second cell group, the second cell group being different from the first cell group, and the first type of time domain resources including symbols indicated as downlink by the uplink and downlink TDD configuration signaling and usable for uplink transmission.

[0234] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0235] As an embodiment, the first communication device 410 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 together with the at least one processor. The first communication device 410 device at least: sends uplink and downlink TDD configuration signaling; receives a first signal on a first cell group, the first power being the transmit power of the first signal; wherein a first reference power is configured for the transmitter of the first signal, and whether the first reference power is used as the maximum transmit power to determine whether the first power depends on whether the time domain resources of the first signal overlap with at least one first type of symbol belonging to a first type of time domain resource, the first type of symbol being a symbol of a time slot of a second cell group, the second cell group being different from the first cell group, and the first type of time domain resource including symbols indicated as downlink by the uplink and downlink TDD configuration signaling and usable for uplink transmission.

[0236] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0237] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, the actions including: sending uplink and downlink TDD configuration signaling; receiving a first signal on a first cell group, the first power being the transmission power of the first signal; wherein, a first reference power is configured to the transmitter of the first signal, and whether the first reference power is used as the maximum transmission power to determine whether the time domain resources of the first power-dependent first signal overlap with at least one first type of symbol belonging to a first type of time domain resource, the first type of symbol is a symbol of a time slot of a second cell group, the second cell group is different from the first cell group, and the first type of time domain resources include symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0238] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0239] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the uplink and downlink TDD configuration signaling in this application.

[0240] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the uplink and downlink TDD configuration signaling in this application.

[0241] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the configuration information of the first reference power in this application.

[0242] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the configuration information of the first reference power in this application.

[0243] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the configuration information of the second reference power in this application.

[0244] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the configuration information of the second reference power in this application.

[0245] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to send the first signal in this application.

[0246] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475, and the memory 476} is used to receive the first signal in this application.

[0247] Example 5

[0248] Embodiment 5 illustrates a signal transmission flow chart according to an embodiment of the present application, as shown in FIG5. In FIG5, the first node U1 and the second node U2 communicate with each other via an air interface.

[0249] The first node U1 receives uplink and downlink TDD configuration signaling in step S511; and sends a first signal on the first cell group in step S512.

[0250] The second node U2 sends uplink and downlink TDD configuration signaling in step S521; and receives a first signal on the first cell group in step S522.

[0251] In embodiment 5, the first power is the transmission power of the first signal; the first reference power is configured to the first node U1, and whether the first node U1 uses the first reference power as the maximum transmission power to determine the first power depends on whether the time domain resources of the first signal overlap with at least one first type symbol belonging to the first type of time domain resources; when the time domain resources of the first signal overlap with at least one first type symbol belonging to the first type of time domain resources, the first node U1 uses the first reference power as the maximum transmission power to determine the first power; the first type symbol is the symbol of the time slot of the second cell group, the second cell group is different from the first cell group, and the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0252] As a sub-embodiment of Embodiment 5, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the first node U1 determines the first power without considering the first reference power.

[0253] As a sub-embodiment of Example 5, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the first node U1 determines the first power without considering the first reference power as the maximum transmit power.

[0254] As an embodiment, the first node U1 is the first node in this application.

[0255] As an embodiment, the second node U2 is the second node in this application.

[0256] As an embodiment, the first node U1 is a UE.

[0257] As an embodiment, the second node U2 is a base station.

[0258] As an embodiment, the air interface between the second node U2 and the first node U1 is a Uu interface.

[0259] As an embodiment, the air interface between the second node U2 and the first node U1 includes a cellular link.

[0260] As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0261] As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a satellite device and a user equipment.

[0262] As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a relay device and a user equipment.

[0263] As an embodiment, for the transmitting end of the first signal, whether the first reference power is used as the maximum transmitting power to determine whether the first power depends on whether the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources.

[0264] As an embodiment, the receiving end of the first signal may make the following assumption about the behavior of the transmitting end of the first signal: whether the transmitting end of the first signal uses the first reference power as the maximum transmitting power to determine whether the first power depends on whether the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources.

[0265] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the transmitting end of the first signal uses the first reference power as the maximum transmitting power to determine the first power.

[0266] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the transmitter of the first signal does not use the first reference power as the maximum transmission power to determine the first power.

[0267] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the transmitter of the first signal determines the first power without considering the first reference power.

[0268] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the transmitting end of the first signal determines the first power without considering the first reference power as the maximum transmitting power.

[0269] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the receiving end of the first signal may assume that the transmitting end of the first signal uses the first reference power as the maximum transmitting power to determine the first power.

[0270] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the receiving end of the first signal can assume that the transmitting end of the first signal does not use the first reference power as the maximum transmitting power to determine the first power.

[0271] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the receiving end of the first signal can assume that: the transmitting end of the first signal determines the first power without considering the first reference power.

[0272] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the receiving end of the first signal can assume that: the transmitting end of the first signal determines the first power without considering the first reference power as the maximum transmitting power.

[0273] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the receiving end of the first signal assumes that the transmitting end of the first signal uses the first reference power as the maximum transmitting power to determine the first power.

[0274] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the receiving end of the first signal assumes that the transmitting end of the first signal does not use the first reference power as the maximum transmitting power to determine the first power.

[0275] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the receiving end of the first signal assumes that: the transmitting end of the first signal determines the first power without considering the first reference power.

[0276] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the receiving end of the first signal assumes that: the transmitting end of the first signal determines the first power without considering the first reference power as the maximum transmitting power.

[0277] As an embodiment, the first reference power is configured by the transmitter of the uplink and downlink TDD configuration signaling to the transmitter of the first signal.

[0278] As an embodiment, the second reference power is configured by the transmitter of the uplink and downlink TDD configuration signaling to the transmitter of the first signal.

[0279] As an embodiment, the second node sends configuration information of the first reference power, and the first node receives the configuration information of the first reference power.

[0280] As an embodiment, the second node sends configuration information of the second reference power, and the first node receives the configuration information of the second reference power.

[0281] As an embodiment, the configuration information of the first reference power is sent / received before the configuration information of the second reference power.

[0282] As an embodiment, the configuration information of the first reference power is sent / received after the configuration information of the second reference power.

[0283] As an embodiment, the configuration information of the first reference power and the configuration information of the second reference power are sent / received simultaneously.

[0284] As an embodiment, the configuration information of the first reference power is sent / received before the uplink and downlink TDD configuration signaling.

[0285] As an embodiment, the configuration information of the first reference power is sent / received after the uplink and downlink TDD configuration signaling.

[0286] As an embodiment, the configuration information of the first reference power and the uplink and downlink TDD configuration signaling are sent / received simultaneously.

[0287] As an embodiment, the configuration information of the second reference power is sent / received before the uplink and downlink TDD configuration signaling.

[0288] As an embodiment, the configuration information of the second reference power is sent / received after the uplink and downlink TDD configuration signaling.

[0289] As an embodiment, the configuration information of the second reference power and the uplink and downlink TDD configuration signaling are sent / received simultaneously.

[0290] As an embodiment, the sending / receiving of the configuration information of the first reference power is before the receiving / sending of the first signal.

[0291] As an embodiment, the sending / receiving of the configuration information of the second reference power is before the receiving / sending of the first signal.

[0292] Example 6

[0293] Example 6 illustrates a schematic diagram of whether the first node uses the first reference power as the maximum transmission power to determine whether the time domain resources of the first power-dependent first signal overlap with at least one first-class symbol belonging to the first-class time domain resources according to an embodiment of the present application, as shown in Figure 6.

[0294] In embodiment 6, if the time domain resources of the first signal overlap with at least one first-class symbol belonging to the first-class time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power; otherwise, the first node determines the first power without considering the first reference power as the maximum transmit power.

[0295] As an embodiment, if the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power; otherwise, the first node determines the first power without considering the first reference power.

[0296] Example 7

[0297] Embodiment 7 illustrates a schematic diagram illustrating the first node determining the first power according to an embodiment of the present application, as shown in FIG7 .

[0298] In Example 7:

[0299] As an embodiment, the P CMAX It is defined for the subframe where the first signal is located.

[0300] As a sub-embodiment of the above embodiment, the time domain resource of the first signal refers to: the subframe where the first signal is located.

[0301] As an embodiment, the P CMAXIt is defined for the serving cell where the first signal is located.

[0302] As an embodiment, the first signal is sent in a transmission occasion, and the P CMAX It is defined for the transmission opportunity where the first signal is located.

[0303] As an embodiment, the first signal is sent in a PUSCH transmission occasion, and the P CMAX It is defined for the PUSCH transmission opportunity where the first signal is located.

[0304] As an embodiment, the first signal is sent in a PUCCH transmission occasion, and the P CMAX It is defined for the PUCCH transmission opportunity where the first signal is located.

[0305] As an embodiment, the P CMAX It is defined for the carrier of the serving cell where the first signal is located.

[0306] As an embodiment, the first node uses the first reference power as the maximum transmit power to determine the first power, including: CMAX is the first reference power.

[0307] As an embodiment, the first node uses the first reference power as the maximum transmit power to determine the first power, including: CMAX is the configured maximum output power (configured maximum output power), the first reference power is the P CMAX The maximum transmit power on which the settings are based.

[0308] As an embodiment, the first node does not use the first reference power as the maximum transmit power to determine the first power, including: the P CMAX The first reference power is not relied upon.

[0309] As an embodiment, the first node determines the first power without considering the first reference power, including: CMAX The first reference power is not relied upon.

[0310] As an embodiment, the first node determines the first power without considering the first reference power as the maximum transmit power, including: CMAX The first reference power is not relied upon.

[0311] As an embodiment, the first node uses the second reference power as the maximum transmit power to determine the first power, including: CMAX is the second reference power.

[0312] As an embodiment, the first node uses the second reference power as the maximum transmit power to determine the first power, including: CMAX is the configured maximum output power, the second reference power is the P CMAX The maximum transmit power on which the settings are based.

[0313] As an embodiment, the first node does not use the second reference power as the maximum transmit power to determine the first power, including: CMAX The second reference power is not relied upon.

[0314] As an embodiment, the first node determines the first power without considering the second reference power, including: CMAX The second reference power is not relied upon.

[0315] As an embodiment, the first node determines the first power without considering the second reference power as the maximum transmit power, including: CMAX The second reference power is not relied upon.

[0316] As an embodiment, the P tmp1 Configuration that depends on at least one parameter.

[0317] As an embodiment, the P tmp1 Rely on downlink path loss estimate.

[0318] As an embodiment, the P tmp1 Rely on TPC (Transmit power control) commands (TPC command(s)).

[0319] As an embodiment, the P tmp1 is equal to the sum of a plurality of components, at least one of the plurality of components being configurable.

[0320] As an embodiment, the P tmp1is equal to the sum of multiple components, one of which is a downlink path loss estimate.

[0321] As an embodiment, the P tmp1 is equal to the sum of multiple components, one of which is α·PL, where α is a configurable parameter and PL is a downlink path loss estimate.

[0322] As an embodiment, the P tmp1 is equal to the sum of multiple components, one of which is the power control adjustment state.

[0323] As an embodiment, the first signal is PUSCH, the P tmp1 yes: Among them, the P O is a configurable parameter, the is the bandwidth allocated to the PUSCH transmission opportunity occupied by the first signal (expressed in the number of resource blocks), α is a configurable parameter, PL is a downlink path loss estimate, and f is a PUSCH power control adjustment state for the PUSCH transmission opportunity occupied by the first signal; The K s =1.25, described The C is the number of code blocks transmitted on the first signal, and the K r is the size of the code block r, the N RE is the number of resource particles determined.

[0324] As an embodiment, the first signal is PUCCH, the P tmp1 yes: Among them, the P O is a configurable parameter, the is the bandwidth of the PUCCH resource allocation (expressed in terms of the number of resource blocks), the PL is the downlink path loss estimate, the f is the PUCCH power control adjustment state for the PUCCH transmission opportunity occupied by the first signal, the Δ F is configurable; described is the number of PUCCH format 0 symbols used for the first signal, is equal to 2, the Δ UCI Equal to 0.

[0325] As an embodiment, the μ is configurable.

[0326] As an embodiment, the μ is a subcarrier spacing configuration.

[0327] As an embodiment, the μ is the subcarrier spacing configuration of the BWP (Bandwidth part) where the first signal is located.

[0328] As an embodiment, the μ is configured by RRC signaling.

[0329] As an embodiment, the first signal is PUSCH, the P tmp1 yes: Among them, the P O is a configurable parameter, the is the bandwidth of the effective PUSCH resource allocation (expressed in the number of resource blocks), α is a configurable parameter, PL is the downlink path loss estimate, and f is the current PUSCH power control adjustment state; The K s =1.25, described The C is the number of code blocks carried by the first signal, and the K r is the size of the code block r, the N RE It is the number of resource elements allocated to the initial PUSCH transmission for the same transport block.

[0330] As an embodiment, the first signal is PUSCH, the P tmp1 yes: Among them, the P O is a configurable parameter, the is the bandwidth of the effective PUSCH resource allocation (expressed in the number of resource blocks), α is a configurable parameter, PL is the downlink path loss estimate, f is the current PUSCH power control adjustment state; Δ TF =0.

[0331] As an embodiment, the first signal is PUCCH, the P tmp1 Yes: P O +PL+h+Δ F +Δ TxD+f; wherein, the P O is a configurable parameter, the PL is the downlink path loss estimate, the f is the current PUCCH power control adjustment state (the current PUSCH power control adjustment state); the Δ F and the Δ TxD Both are configurable; the h is equal to 0.

[0332] As an example, in this application, The form of means taking the smaller of A and B.

[0333] Example 8

[0334] Embodiment 8 illustrates a schematic diagram illustrating the first node determining the first power according to an embodiment of the present application, as shown in FIG8 .

[0335] In embodiment 8, the first signal is PUSCH,

[0336] As an embodiment, the P CMAX,1 It's P CMAX The linear value of .

[0337] As an embodiment, the P CMAX It is defined for the subframe where the first signal is located.

[0338] As a sub-embodiment of the above embodiment, the time domain resource of the first signal refers to: the subframe where the first signal is located.

[0339] As an embodiment, the P CMAX It is defined for the serving cell where the first signal is located.

[0340] As an embodiment, the first signal is sent in a transmission occasion, and the P CMAX It is defined for the transmission opportunity where the first signal is located.

[0341] As an embodiment, the first signal is sent in a PUSCH transmission occasion, and the P CMAX It is defined for the PUSCH transmission opportunity where the first signal is located.

[0342] As an embodiment, the first signal is sent in a PUCCH transmission occasion, and the P CMAX It is defined for the PUCCH transmission opportunity where the first signal is located.

[0343] As an embodiment, the P CMAX It is defined for the carrier of the serving cell where the first signal is located.

[0344] As an embodiment, the first node uses the first reference power as the maximum transmit power to determine the first power, including: CMAX is the first reference power.

[0345] As an embodiment, the first node uses the first reference power as the maximum transmit power to determine the first power, including: CMAX is the configured maximum output power (configured maximum output power), the first reference power is the P CMAX The maximum transmit power on which the settings are based.

[0346] As an embodiment, the first node does not use the first reference power as the maximum transmit power to determine the first power, including: the P CMAX The first reference power is not relied upon.

[0347] As an embodiment, the first node determines the first power without considering the first reference power, including: CMAX The first reference power is not relied upon.

[0348] As an embodiment, the first node determines the first power without considering the first reference power as the maximum transmit power, including: CMAX The first reference power is not relied upon.

[0349] As an embodiment, the first node uses the second reference power as the maximum transmit power to determine the first power, including: CMAX is the second reference power.

[0350] As an embodiment, the first node uses the second reference power as the maximum transmit power to determine the first power, including: CMAX is the configured maximum output power, the second reference power is the P CMAX The maximum transmit power on which the settings are based.

[0351] As an embodiment, the first node does not use the second reference power as the maximum transmit power to determine the first power, including: CMAX The second reference power is not relied upon.

[0352] As an embodiment, the first node determines the first power without considering the second reference power, including: CMAX The second reference power is not relied upon.

[0353] As an embodiment, the first node determines the first power without considering the second reference power as the maximum transmit power, including: CMAX The second reference power is not relied upon.

[0354] As an embodiment, the first signal is a PUSCH, and the first node sends the first signal and a PUCCH simultaneously to a serving cell.

[0355] As an embodiment, the P PUCCH,1 It is a linear value of the transmission power of the PUCCH that is sent to the same serving cell and at the same time as the first signal.

[0356] As an embodiment, the P tmp1 Configuration that depends on at least one parameter.

[0357] As an embodiment, the P tmp1 Rely on downlink path loss estimate.

[0358] As an embodiment, the P tmp1 Depends on TPC command(s).

[0359] As an embodiment, the P tmp1 is equal to the sum of a plurality of components, at least one of the plurality of components being configurable.

[0360] As an embodiment, the P tmp1 is equal to the sum of multiple components, one of which is a downlink path loss estimate.

[0361] As an embodiment, the P tmp1 is equal to the sum of multiple components, one of which is α·PL, where α is a configurable parameter and PL is a downlink path loss estimate.

[0362] As an embodiment, the P tmp1 yes: Among them, the P O is a configurable parameter, the is the bandwidth of the effective PUSCH resource allocation (expressed in the number of resource blocks), α is a configurable parameter, PL is the downlink path loss estimate, and f is the current PUSCH power control adjustment state; The K s =1.25, described The C is the number of code blocks carried by the first signal, and the K r is the size of the code block r, the N RE It is the number of resource elements allocated to the initial PUSCH transmission for the same transport block.

[0363] As an embodiment, the P tmp1 yes: Among them, the P O is a configurable parameter, the is the bandwidth of the effective PUSCH resource allocation (expressed in the number of resource blocks), α is a configurable parameter, PL is the downlink path loss estimate, f is the current PUSCH power control adjustment state; Δ TF =0.

[0364] Example 9

[0365] Example 9 illustrates a P according to one embodiment of the present application. CMAX A schematic diagram illustrating the setting is shown in Figure 9.

[0366] In embodiment 9, the first node is allowed to set P CMAX , and the P CMAX is set within the following range: the first lower limit power value ≤ the P CMAX ≤ the first upper limit power value.

[0367] As an embodiment, the first lower limit power value is P CMAX_L,f,c Indicates that the P CMAX_L,f,c =MIN{P EMAX,c –ΔT C,c ,(P PowerClass –ΔPPowerClass )–MAX(MAX(MPR c +ΔMPR c ,A-MPR c )+ΔT IB,c +ΔT C,c +ΔT RxSRS ,P-MPR c )}.

[0368] As an embodiment, the first lower limit power value is P CMAX_L,f,c Indicates that the P CMAX_L,f,c =MIN{P EMAX,c –ΔT C,c ,(P PowerClass –ΔP PowerClass )–MAX(MAX(MPR c +ΔMPR c , A-MPR c )+ΔT IB,c +ΔT C,c , P-MPR c )}.

[0369] As an embodiment, the first upper limit power value is P CMAX_H,f,c Indicates that the P CMAX_H,f,c =MIN{P EMAX,c , P PowerClass –ΔP PowerClass}.

[0370] As an embodiment, the first lower limit power value is P CMAX_L,c Indicates that the P CMAX_L,c =MIN{P EMAX,c –ΔT C,c , P PowerClass –MAX(MPR c +A-MPR c +ΔT IB,c +ΔT C,c +ΔT ProSe , P-MPR c )}.

[0371] As an embodiment, the first upper limit power value is P CMAX_H,c Indicates that the P CMAX_H,c =MIN{P EMAX,c , P PowerClass}.

[0372] As an embodiment, the first node automatically sets the P value within a range bounded by the first lower power limit and the first upper power limit. CMAX .

[0373] As an embodiment, the P CMAX The first node is randomly selected with equal probability within a range bounded by the first lower limit power value and the first upper limit power value.

[0374] As an embodiment, the MIN represents the smaller one between the two.

[0375] As an embodiment, the MAX represents the larger one between the two.

[0376] As an embodiment, the P CMAX The unit is dBm.

[0377] As an embodiment, the P EMAX,c It is defined for a service cell.

[0378] As an embodiment, the first node uses the first reference power as the maximum transmit power to determine the first power, and the P EMAX,c is the first reference power.

[0379] As an embodiment, the first node uses the first reference power as the maximum transmit power to determine the first power, including: EMAX,c is the first reference power.

[0380] As an embodiment, the first node does not use the first reference power as the maximum transmit power to determine the first power, and the P EMAX,c It is the value given by the information element p-Max or the additionalPmax field in the information element NR-NS-PmaxList.

[0381] As an embodiment, the first node determines the first power without considering the first reference power, and the P EMAX,c It is the value given by the information element p-Max or the additionalPmax field in the information element NR-NS-PmaxList.

[0382] As an embodiment, the first node determines the first power without considering the first reference power as the maximum transmit power, and the P EMAX,c It is the value given by the information element p-Max or the additionalPmax field in the information element NR-NS-PmaxList.

[0383] As an embodiment, the first node does not use the first reference power as the maximum transmit power to determine the first power, and the P EMAX,c It is the value given by the information element P-Max.

[0384] As an embodiment, the first node determines the first power without considering the first reference power, and the P EMAX,c It is the value given by the information element P-Max.

[0385] As an embodiment, the first node determines the first power without considering the first reference power as the maximum transmit power, and the P EMAX,c It is the value given by the information element P-Max.

[0386] As an embodiment, the first node uses the second reference power as the maximum transmit power to determine the first power, and the P EMAX,c is the second reference power.

[0387] As an embodiment, the first node uses the second reference power as the maximum transmit power to determine the first power, including: EMAX,c is the second reference power.

[0388] As an embodiment, the first node does not use the first reference power nor the first reference power as the maximum transmit power to determine the first power, and the P EMAX,c It is the value given by the information element p-Max or the additionalPmax field in the information element NR-NS-PmaxList.

[0389] As an embodiment, the first node determines the first power without considering the first reference power or the second reference power, and the P EMAX,c It is the value given by the information element p-Max or the additionalPmax field in the information element NR-NS-PmaxList.

[0390] As an embodiment, the first node determines the first power without considering the first reference power as the maximum transmit power or the second reference power as the maximum transmit power, and the P EMAX,c It is the value given by the information element p-Max or the additionalPmax field in the information element NR-NS-PmaxList.

[0391] As an embodiment, the first node does not use the first reference power nor the first reference power as the maximum transmit power to determine the first power, and the P EMAX,c It is the value given by the information element P-Max.

[0392] As an embodiment, the first node determines the first power without considering the first reference power or the second reference power, and the P EMAX,c It is the value given by the information element P-Max.

[0393] As an embodiment, the first node determines the first power without considering the first reference power as the maximum transmit power or the second reference power as the maximum transmit power, and the P EMAX,c It is the value given by the information element P-Max.

[0394] As an embodiment, the P PowerClass Equal to 23dBm.

[0395] As an embodiment, the P PowerClass Equal to 26dBm.

[0396] As an embodiment, the P PowerClass Equal to 29dBm.

[0397] As an embodiment, the P PowerClass Equal to 31dBm.

[0398] As an embodiment, the P PowerClass It is the maximum UE power without considering tolerance.

[0399] As an example, the ΔP PowerClass It is configurable.

[0400] As an example, the ΔP PowerClass Equal to -3dB.

[0401] As an example, the ΔP PowerClass Equal to 3dB.

[0402] As an example, the ΔP PowerClass Equal to 0dB.

[0403] As an example, the ΔT C,c It is configurable.

[0404] As an example, the ΔT C,c Equal to 0dB.

[0405] As an example, the ΔT C,c Equal to 1.5dB.

[0406] As an example, the ΔT IB,c It is configurable.

[0407] As an example, the ΔT IB,c is the additional tolerance.

[0408] As an example, the ΔT IB,c Equal to 0dB.

[0409] As an embodiment, the MPR c It is the maximum power reduction (MPR).

[0410] As an embodiment, the A-MPR c It is the additional maximum power reduction.

[0411] As an embodiment, the MPR c It is for a service cell.

[0412] As an embodiment, the A-MPR c It is aimed at a service cell.

[0413] As an example, the ΔMPR c It is for a service cell.

[0414] As an example, the ΔMPR c Equal to 0.

[0415] As an example, the ΔMPR c The value of is related to the relative channel bandwidth.

[0416] As an example, the ΔT RxSRS Equal to 0.

[0417] As an example, the ΔT RxSRS Equal to 4.5dB.

[0418] As an example, the ΔT RxSRS Equal to 7.5dB.

[0419] As an embodiment, the P-MPR c It is power management maximum power reduction.

[0420] As an embodiment, the P-MPR c Equal to 0dB.

[0421] As an embodiment, the P-MPR c It is configurable.

[0422] As an embodiment, the P-MPR c The allowed maximum output power reduction is to ensure compliance with the applicable electromagnetic energy absorption requirements:

[0423] As an embodiment, the P-MPR c It is the allowed maximum output power reduction for the following requirements:

[0424] a) ensuring compliance with applicable electromagnetic energy absorption requirements and addressing unwanted emissions / self desense requirements in the case of simultaneous transmissions on multiple RATs in scenarios that are not within the scope of 3GPP RAN specifications;

[0425] b) ensuring compliance with applicable electromagnetic energy absorption requirements in a first scenario; wherein, in said first scenario, proximity detection is used to address such requirements and such requirements require a lower maximum output power.

[0426] As an example, the ΔT ProSe =0.1dB.

[0427] As an example, the ΔT ProSe =0dB.

[0428] Example 10

[0429] Embodiment 10 illustrates a schematic diagram of the first type of time domain resources according to an embodiment of the present application, as shown in FIG10 .

[0430] In embodiment 10, the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0431] As an embodiment, a symbol indicated as downlink by the uplink / downlink TDD configuration signaling and available for uplink transmission is indicated as downlink by the uplink / downlink TDD configuration signaling, and this symbol can be used for uplink transmission.

[0432] As an embodiment, the first type of time domain resources are symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0433] As an embodiment, the first type of time domain resources includes symbols indicated by the uplink and downlink TDD configuration signaling as downlink and can be used for uplink transmission, and symbols indicated by the uplink and downlink TDD configuration signaling as uplink or flexible.

[0434] As an embodiment, there is at least one symbol indicated as downlink by the uplink and downlink TDD configuration signaling that does not belong to the first type of time domain resources.

[0435] As an embodiment, whether a symbol indicated as a downlink symbol by the uplink / downlink TDD configuration signaling can be used for uplink transmission is configurable.

[0436] As an embodiment, whether a downlink symbol indicated by the uplink / downlink TDD configuration signaling is usable for uplink transmission is configured by RRC signaling.

[0437] As an embodiment, the first type of time domain resources does not include symbols indicated as downlink by the uplink and downlink TDD configuration signaling and cannot be used for uplink transmission.

[0438] As an embodiment, whether a flexible symbol belongs to the first type of time domain resources is configurable.

[0439] As an embodiment, whether a flexible symbol belongs to the first category of time domain resources is configured by RRC signaling.

[0440] As an embodiment, the first type of time domain resources includes those configured for SBFD operation.

[0441] As an embodiment, the first type of time domain resources includes those configured for full-duplex operation.

[0442] As an embodiment, the expression "can be used for uplink transmission" means: can be used for at least PUCCH (Physical Uplink Control CHannel) transmission (transmission(s)).

[0443] As an embodiment, the expression "available for uplink transmission" means: available for at least PUSCH (Physical Uplink Shared CHannel) transmission (transmission(s)).

[0444] As an embodiment, the expression "can be used for uplink transmission" means: can be used for at least PUSCH and PUCCH transmission.

[0445] As an embodiment, combined with the above features, the method disclosed in this application is conducive to significantly improving the uplink data capacity of the system.

[0446] As an embodiment, the expression "can be used for uplink transmission" means: can be used for at least SRS (Sounding Reference Signal) transmission (transmission(s)).

[0447] As an embodiment, the expression "can be used for uplink transmission" means: can be used for at least one of PUSCH transmission, PUCCH transmission, PRACH (Physical Random Access CHannel) transmission (transmission(s)) and SRS transmission.

[0448] As an embodiment, the expression "can be used for uplink transmission" means: can be used for at least two of PUSCH transmission, PUCCH transmission, PRACH transmission and SRS transmission.

[0449] As an embodiment, the expression "can be used for uplink transmission" means: can be used for at least three of PUSCH transmission, PUCCH transmission, PRACH transmission and SRS transmission.

[0450] As an embodiment, the expression "can be used for uplink transmission" means: can be used for PUSCH transmission, PUCCH transmission, PRACH transmission and SRS transmission.

[0451] As an embodiment, the expression "available for uplink transmission" means: available for transmission of UL-SCH (Uplink Shared Channel(s)).

[0452] As an embodiment, the uplink / downlink TDD (Time Division Duplex) configuration signaling is signaling indicating the link direction of the symbol.

[0453] As an embodiment, the uplink and downlink TDD configuration signaling indicates at least one symbol as downlink.

[0454] As an embodiment, the uplink and downlink TDD configuration signaling indicates at least one symbol as uplink.

[0455] As an embodiment, the uplink and downlink TDD configuration signaling is RRC signaling.

[0456] As an embodiment, the benefits of the above method include: high transmission reliability of the uplink and downlink TDD configuration signaling.

[0457] As an embodiment, the uplink and downlink TDD configuration signaling is tdd-UL-DL-ConfigurationCommon.

[0458] As an embodiment, the uplink and downlink TDD configuration signaling is tdd-UL-DL-ConfigurationDedicated.

[0459] As an embodiment, the uplink and downlink TDD configuration signaling includes tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.

[0460] As an embodiment, the uplink and downlink TDD configuration signaling includes tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0461] As an embodiment, the benefits of the above method include: being conducive to optimizing the allocation of transmission resources under the condition that at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated is configured.

[0462] Example 11

[0463] Embodiment 11 illustrates a structural block diagram of a processing device in a first node device according to an embodiment, as shown in FIG11. In FIG11, the first node device processing device A00 includes a first receiver A01 and a first transmitter A02.

[0464] As an embodiment, the first node device A00 is a user equipment.

[0465] As an embodiment, the first node device A00 is a relay node.

[0466] As an embodiment, the first node device A00 is a vehicle-mounted communication device.

[0467] As an embodiment, the second node device B00 is a device supporting full-duplex operation.

[0468] As an embodiment, the second node device B00 is a device that supports sub-band non-overlapping full-duplex mode.

[0469] As an embodiment, the first receiver A01 includes at least one of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 4 of the present application.

[0470] As an embodiment, the first receiver A01 includes at least the first five of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0471] As an embodiment, the first receiver A01 includes at least the first four of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 4 of the present application.

[0472] As an embodiment, the first receiver A01 includes at least the first three of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 4 of the present application.

[0473] As an embodiment, the first receiver A01 includes at least the first two of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 4 of the present application.

[0474] As an embodiment, the first transmitter A02 includes at least one of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0475] As an embodiment, the first transmitter A02 includes at least the first five of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0476] As an embodiment, the first transmitter A02 includes at least the first four of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0477] As an embodiment, the first transmitter A02 includes at least the first three of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0478] As an embodiment, the first transmitter A02 includes at least the first two of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG4 of the present application.

[0479] As an embodiment, the first receiver A01 receives uplink and downlink TDD configuration signaling; the first transmitter A02 sends a first signal on a first cell group, and the first power is the transmission power of the first signal; wherein, the first reference power is configured to the first node, and whether the first node uses the first reference power as the maximum transmission power to determine the first power depends on whether the time domain resources of the first signal overlap with at least one first type of symbol belonging to the first type of time domain resources, the first type of symbol is the symbol of the time slot of the second cell group, the second cell group is different from the first cell group, and the first type of time domain resources include symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0480] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the first node uses the first reference power as the maximum transmit power to determine the first power.

[0481] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the first node determines the first power without considering the first reference power as the maximum transmission power.

[0482] As an embodiment, the time domain resource of the first signal is: the subframe where the first signal is located.

[0483] As an embodiment, the first reference power is configured by RRC signaling.

[0484] As an embodiment, the first cell group is an SCG and the second cell group is an MCG.

[0485] As an embodiment, the first cell group is MCG and the second cell group is SCG.

[0486] As an embodiment, the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0487] As an embodiment, the first receiver A01 receives uplink and downlink TDD configuration signaling; the first transmitter A02 sends a first signal on a first cell group, and the first power is the transmission power of the first signal; wherein the first reference power is configured for the first node, and whether the first node uses the first reference power as the maximum transmission power to determine whether the first power depends on whether the time domain resource of the first signal overlaps with at least one first type symbol belonging to the first type of time domain resource; when the time domain resource of the first signal overlaps with at least one first type symbol belonging to the first type of time domain resource, the first node uses the first reference power as The first power is determined by the maximum transmission power; when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the first node determines the first power without considering the first reference power as the maximum transmission power; the first type of symbols are symbols of the time slot of the second cell group, the second cell group is different from the first cell group, the first cell group is SCG, and the second cell group is MCG; the first type of time domain resources include symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission; the time domain resources of the first signal are: the subframe where the first signal is located.

[0488] As a sub-embodiment of the above embodiment, the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0489] As a sub-embodiment of the above embodiment, the first reference power is configured by p-MaxEUTRA, and the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0490] As a sub-embodiment of the above embodiment, the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission, and symbols indicated as uplink or flexible by the uplink and downlink TDD configuration signaling.

[0491] As a sub-embodiment of the above embodiment, the first type of time domain resources includes symbols indicated by the uplink and downlink TDD configuration signaling as downlink and can be used for uplink transmission, and symbols indicated by the uplink and downlink TDD configuration signaling as uplink or flexible; the first reference power is configured by p-MaxEUTRA, and the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0492] As an embodiment, the first receiver A01 receives uplink and downlink TDD configuration signaling; the first transmitter A02 sends a first signal on a first cell group, and the first power is the transmission power of the first signal; wherein, the first reference power is configured to the first node, and whether the first node uses the first reference power as the maximum transmission power to determine the first power depends on whether the time domain resources of the first signal overlap with at least one first type symbol belonging to the first type of time domain resources; when the time domain resources of the first signal overlap with at least one first type symbol belonging to the first type of time domain resources, the first node uses the first reference power as the maximum transmission power to determine the first power; when the time domain resources of the first signal do not overlap with the first type symbol belonging to the first type of time domain resources, the first node determines the first power without considering the first reference power; the first type symbol is a symbol of a time slot of a second cell group, the second cell group is different from the first cell group, and the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission; the time domain resources of the first signal are: symbols for the first signal (symbol(s) for the first signal).

[0493] As a sub-embodiment of the above embodiment, the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0494] As a sub-embodiment of the above embodiment, the first reference power is configured by p-NR-FR1.

[0495] As a sub-embodiment of the above embodiment, the first reference power is configured by p-NR-FR2.

[0496] As a sub-embodiment of the above embodiment, the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission, and symbols indicated as uplink or flexible by the uplink and downlink TDD configuration signaling.

[0497] As a sub-embodiment of the above embodiment, the first cell group is an SCG and the second cell group is an MCG.

[0498] As a sub-embodiment of the above embodiment, the first cell group is an MCG and the second cell group is an SCG.

[0499] As a sub-embodiment of the above embodiment, the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated; the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission, and symbols indicated as uplink or flexible by the uplink and downlink TDD configuration signaling; the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated; the first cell group is SCG, and the second cell group is MCG.

[0500] As a sub-embodiment of the above embodiment, the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated; the first type of time domain resources includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission, and symbols indicated as uplink or flexible by the uplink and downlink TDD configuration signaling; the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated; the first cell group is MCG, and the second cell group is SCG.

[0501] Example 12

[0502] Embodiment 12 illustrates a structural block diagram of a processing device in a second node device according to an embodiment, as shown in FIG12. In FIG12, the second node device processing device B00 includes a second transmitter B01 and a second receiver B02.

[0503] As an embodiment, the second node device B00 is a base station.

[0504] As an embodiment, the second node device B00 is a satellite device.

[0505] As an embodiment, the second node device B00 is a relay node.

[0506] As an embodiment, the second node device B00 is one of a test device, a test equipment, and a test instrument.

[0507] As an embodiment, the second node device B00 is a device supporting full-duplex operation.

[0508] As an embodiment, the second node device B00 is a device that supports sub-band non-overlapping full-duplex mode.

[0509] As an embodiment, the second transmitter B01 includes at least one of the antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0510] As an embodiment, the second transmitter B01 includes at least the first five of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0511] As an embodiment, the second transmitter B01 includes at least the first four of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0512] As an embodiment, the second transmitter B01 includes at least the first three of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0513] As an embodiment, the second transmitter B01 includes at least the first two of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0514] As an embodiment, the second receiver B02 includes at least one of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0515] As an embodiment, the second receiver B02 includes at least the first five of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0516] As an embodiment, the second receiver B02 includes at least the first four of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0517] As an embodiment, the second receiver B02 includes at least the first three of the antenna 420, receiver 418, multi-antenna receiving processor 472, receiving processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0518] As an embodiment, the second receiver B02 includes at least the first two of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 4 of the present application.

[0519] As an embodiment, the second transmitter B01 sends uplink and downlink TDD configuration signaling; the second receiver B02 receives a first signal on a first cell group, and the first power is the transmission power of the first signal; wherein, the first reference power is configured to the transmitter of the first signal, and whether the first reference power is used as the maximum transmission power to determine whether the time domain resources of the first power-dependent first signal overlap with at least one first type of symbol belonging to the first type of time domain resources, the first type of symbol is the symbol of the time slot of the second cell group, the second cell group is different from the first cell group, and the first type of time domain resources include symbols indicated as downlink by the uplink and downlink TDD configuration signaling and can be used for uplink transmission.

[0520] As an embodiment, when the time domain resources of the first signal overlap with at least one first-category symbol belonging to the first-category time domain resources, the second node may assume that: the transmitting end of the first signal uses the first reference power as the maximum transmitting power to determine the first power.

[0521] As an embodiment, when the time domain resources of the first signal do not overlap with the first type of symbols belonging to the first type of time domain resources, the second node may assume that: the transmitting end of the first signal determines the first power without considering the first reference power as the maximum transmitting power.

[0522] As an embodiment, the time domain resource of the first signal is: the subframe where the first signal is located.

[0523] As an embodiment, the first reference power is configured by RRC signaling.

[0524] As an embodiment, the first cell group is an SCG and the second cell group is an MCG.

[0525] As an embodiment, the first cell group is MCG and the second cell group is SCG.

[0526] As an embodiment, the uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0527] Those skilled in the art will appreciate that all or part of the steps in the above method can be performed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, the various module units in the above embodiment can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The first node device in this application includes but is not limited to mobile phones, tablet computers, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft, and other wireless communication devices. The second node device in this application includes but is not limited to mobile phones, tablet computers, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft, and other wireless communication devices. The user equipment, UE, or terminal in this application includes but is not limited to mobile phones, tablet computers, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft, and other wireless communication devices. The base station equipment or base station or network side equipment in this application includes but is not limited to macro cell base stations, micro cell base stations, home base stations, relay base stations, eNB, gNB, transmission receiving nodes TRP, GNSS, relay satellites, satellite base stations, aerial base stations, test devices, test equipment, test instruments and other equipment.

[0528] Those skilled in the art will appreciate that the present invention may be implemented in other specific forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive. The scope of the invention is determined by the appended claims, not the foregoing description, and all modifications that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node used for wireless communication, characterized in that, Comprising: A first receiver, which receives uplink and downlink TDD configuration signaling; A first transmitter, which transmits a first signal on a first cell group, and a first power is the transmission power of the first signal; Wherein, a first reference power is configured for the first node, and whether the first node uses the first reference power as the maximum transmission power to determine the first power depends on whether the time domain resource of the first signal overlaps with at least one first type symbol belonging to a first type of time domain resource. The first type of symbol is a symbol of a time slot of a second cell group, and the second cell group is different from the first cell group. The first type of time domain resource includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and available for uplink transmission.

2. The first node according to claim 1, characterized in that When the time domain resource of the first signal overlaps with at least one of the first type symbols belonging to the first type of time domain resource, the first node uses the first reference power as the maximum transmission power to determine the first power.

3. The first node according to claim 1 or 2, characterized in that When the time domain resource of the first signal does not overlap with the first type symbols belonging to the first type of time domain resource, the first node determines the first power without considering the first reference power as the maximum transmission power.

4. The first node according to any one of claims 1 to 3, characterized in that The time domain resource of the first signal is: the subframe where the first signal is located.

5. The first node according to any one of claims 1 to 3, characterized in that, The time domain resource of the first signal is: the symbol for the first signal.

6. The first node according to any one of claims 1 to 5, characterized in that, The first reference power is configured by RRC signaling.

7. The first node according to any one of claims 1 to 6, characterized in that The first cell group is SCG, and the second cell group is MCG.

8. The first node according to any one of claims 1 to 7, characterized in that, The uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

9. A second node used for wireless communication, characterized in that, Comprising: A second transmitter, which transmits uplink and downlink TDD configuration signaling; A second receiver, which receives a first signal on a first cell group, and a first power is the transmission power of the first signal; Wherein, a first reference power is configured for the transmitting end of the first signal, and whether the first reference power is used as the maximum transmission power to determine the first power depends on whether the time domain resource of the first signal overlaps with at least one first type symbol belonging to a first type of time domain resource. The first type of symbol is a symbol of a time slot of a second cell group, and the second cell group is different from the first cell group. The first type of time domain resource includes symbols indicated as downlink by the uplink and downlink TDD configuration signaling and available for uplink transmission.

10. The second node according to claim 9, characterized in that, When the time domain resource of the first signal overlaps with at least one of the first type symbols belonging to the first type of time domain resource, the transmitting end of the first signal uses the first reference power as the maximum transmission power to determine the first power.

11. The second node according to claim 9 or 10, characterized in that, When the time domain resource of the first signal does not overlap with the first type symbols belonging to the first type of time domain resource, the transmitting end of the first signal determines the first power without considering the first reference power as the maximum transmission power.

12. The second node according to any one of claims 9 to 11, characterized in that, The time-domain resource of the first signal is: the subframe in which the first signal is located.

13. The second node according to any one of claims 9 to 11, characterized in that, The time-domain resource of the first signal is: the symbol for the first signal.

14. The second node according to any one of claims 9 to 13, characterized in that, The first reference power is configured by RRC signaling.

15. The second node according to any one of claims 9 to 14, characterized in that The first cell group is SCG, and the second cell group is MCG.

16. The second node according to any one of claims 9 to 15, characterized in that, The uplink-downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

17. A method in a first node used for wireless communication, characterized in that, Includes: Receiving uplink-downlink TDD configuration signaling; Transmitting a first signal on a first cell group, where the first power is the transmission power of the first signal; Wherein, the first reference power is configured for the first node, and whether the first node uses the first reference power as the maximum transmission power to determine the first power depends on whether the time-domain resource of the first signal overlaps with at least one first-type symbol belonging to the first-type time-domain resource. The first-type symbol is a symbol in a time slot of a second cell group, the second cell group is different from the first cell group, and the first-type time-domain resource includes symbols indicated as downlink by the uplink-downlink TDD configuration signaling and available for uplink transmission.

18. The method in the first node according to claim 17, characterized in that, When the time-domain resource of the first signal overlaps with at least one of the first-type symbols belonging to the first-type time-domain resource, the first node uses the first reference power as the maximum transmission power to determine the first power.

19. The method in the first node according to claim 17 or 18, characterized in that, When the time-domain resource of the first signal does not overlap with the first-type symbols belonging to the first-type time-domain resource, the first node determines the first power without considering the first reference power as the maximum transmission power.

20. The method in the first node according to any one of claims 17 to 19, characterized in that, The time-domain resource of the first signal is: the subframe in which the first signal is located.

21. The method in the first node according to any one of claims 17 to 19, characterized in that, The time-domain resource of the first signal is: the symbol for the first signal.

22. The method in the first node according to any one of claims 17 to 21, characterized in that The first reference power is configured by RRC signaling.

23. The method in the first node according to any one of claims 17 to 22, characterized in that, The first cell group is SCG, and the second cell group is MCG.

24. The method in the first node according to any one of claims 17 to 23, characterized in that, The uplink-downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

25. A method in a second node used for wireless communication, characterized in that, Includes: Transmitting uplink-downlink TDD configuration signaling; Receiving a first signal on a first cell group, where the first power is the transmission power of the first signal; Wherein, the first reference power is configured for the transmitter of the first signal, and whether the first reference power is used as the maximum transmission power to determine the first power depends on whether the time-domain resource of the first signal overlaps with at least one first-type symbol belonging to the first-type time-domain resource. The first-type symbol is a symbol in a time slot of a second cell group, the second cell group is different from the first cell group, and the first-type time-domain resource includes symbols indicated as downlink by the uplink-downlink TDD configuration signaling and available for uplink transmission.

26. The method in the second node according to claim 25, wherein When the time domain resource of the first signal overlaps with at least one of the first type of symbols belonging to the first type of time domain resources, the transmitting end of the first signal uses the first reference power as the maximum transmission power to determine the first power.

27. The method in the second node according to claim 25 or 26, characterized in that, When the time domain resource of the first signal does not overlap with the first type of symbols belonging to the first type of time domain resources, the transmitting end of the first signal determines the first power without considering the first reference power as the maximum transmission power.

28. The method in the second node according to any one of claims 25 to 27, characterized in that, The time domain resource of the first signal is: the subframe where the first signal is located.

29. The method in the second node according to any one of claims 25 to 27, characterized in that, The time domain resource of the first signal is: the symbol for the first signal.

30. The method in the second node according to any one of claims 25 to 29, characterized in that, The first reference power is configured by RRC signaling.

31. The method in the second node according to any one of claims 25 to 30, characterized in that, The first cell group is SCG, and the second cell group is MCG.

32. The method in the second node according to any one of claims 25 to 31, characterized in that, The uplink and downlink TDD configuration signaling includes at least one of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

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