Power determination, information transmission, parameter transmission method, communication node and medium

Abstract

The present application provides a power determination, information transmission, parameter transmission method, communication node and medium. The method determines a time domain resource group, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node; the transmission power of the uplink transmission of the first unit is determined according to the time domain resource group.

Description

Technical Field

[0001] The present application relates to a wireless communication network, for example, to a power determination, information transmission, parameter transmission method, communication node and medium. Background Art

[0002] In an Integrated Access and Backhaul (IAB) network, for an IAB node, its upper node is called a parent node, which may be an IAB node, a donor IAB node or a base station; its lower node is a child node, which may be an IAB node, a relay node or a terminal (User Equipment, UE). The link between the IAB node and the parent node is called a parent backhaul link, the link between the IAB node and the child node is called a child backhaul link, and the link between the IAB node and the UE is called an access link. The parent backhaul link and the child backhaul link of the IAB node, or the parent backhaul link and the access link, may be multiplexed, that is, the IAB node may send data on the uplink parent backhaul link and the downlink access link (downlink child backhaul link and / or downlink access link) at the same time. In the above-mentioned multiplexing scenario, there is currently no effective solution for determining the transmit power of uplink transmission when the total power of an IAB node is limited to improve the transmission performance and communication quality of the IAB network. Summary of the invention

[0003] The present application provides a power determination, information sending, parameter sending method, communication node and medium to determine the power of uplink transmission and improve communication quality.

[0004] The embodiment of the present application provides a power determination method, which is applied to a first communication node, including:

[0005] Determine a time domain resource group, each time domain resource group is associated with a power control parameter set, the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node;

[0006] The transmit power of uplink transmission of the first unit is determined according to the time domain resource group.

[0007] The embodiment of the present application further provides a power determination method, which is applied to a first communication node, including:

[0008] Determining a power control parameter set, the power control parameter set comprising a transmit power upper limit associated with the first communication node;

[0009] The transmit power of the uplink transmission of the first unit is determined according to the power control parameter set.

[0010] The embodiment of the present application further provides an information sending method, which is applied to a second communication node, including:

[0011] Determine an association between a time domain resource group and a power control parameter set, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node;

[0012] Configuration information is sent, wherein the configuration information includes an association between a time domain resource group and a power control parameter set, and the configuration information is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0013] The embodiment of the present application also provides a parameter sending method, which is applied to a second communication node, including:

[0014] Determining a power control parameter set, the power control parameter set comprising a transmit power upper limit associated with the first communication node;

[0015] A transmission power control parameter set is sent, where the power control parameter set is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0016] The embodiment of the present application further provides a first communication node, including:

[0017] one or more processors;

[0018] A storage device for storing one or more programs;

[0019] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned power determination method.

[0020] The embodiment of the present application further provides a second communication node, including:

[0021] one or more processors;

[0022] A storage device for storing one or more programs;

[0023] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned information sending method or parameter sending method.

[0024] An embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the above-mentioned power determination method, information sending method or parameter sending method is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1A flowchart of a power determination method provided by an embodiment;

[0026] Figure 2 A schematic diagram of an uplink transmission overlapping with a time domain resource group provided by an embodiment;

[0027] Figure 3 A schematic diagram of an uplink transmission overlapping with a time domain resource group provided by another embodiment;

[0028] Figure 4 A schematic diagram of time domain resources within a configuration period corresponding to a timing mode provided in an embodiment;

[0029] Figure 5 A schematic diagram of an uplink transmission and a downlink or flexible symbol overlap provided by an embodiment;

[0030] Figure 6 A schematic diagram of overlapping uplink transmission and downlink or flexible symbols provided by another embodiment;

[0031] Figure 7 A flow chart of a power determination method provided by another embodiment;

[0032] Figure 8 A flowchart of a method for sending information provided by an embodiment;

[0033] Fig. 9 A flow chart of a parameter sending method provided by an embodiment;

[0034] Fig.10 A schematic diagram of the structure of a power determination device provided by an embodiment;

[0035] Fig.11 A schematic diagram of the structure of a power determination device provided in another embodiment;

[0036] Fig.12 A schematic diagram of the structure of an information sending device provided by an embodiment;

[0037] Fig.13 A schematic diagram of the structure of a parameter sending device provided by an embodiment;

[0038] Fig.14 A schematic diagram of the hardware structure of a first communication node provided by an embodiment;

[0039] Fig.15 A schematic diagram of the hardware structure of a second communication node provided by an embodiment. DETAILED DESCRIPTION

[0040] The present application is described below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily. It should also be noted that, for ease of description, only the parts related to the present application rather than all structures are shown in the accompanying drawings.

[0041] In the IAB network, the node with a wired backhaul link to the core network is the donor IAB node, which consists of a centralized unit (CU) and at least one distributed unit (DU). The node connected to the donor IAB node by wireless is the IAB node. There is no direct connection between the IAB node and the core network. Its interaction with the core network needs to be forwarded once or multiple times, and finally realized with the help of the donor IAB node. Both the donor IAB node and the IAB node support UE access. The IAB node has two functions: 1) Distributed unit function (i.e., IAB-DU), that is, the IAB node can provide wireless access function for child nodes or UEs like a base station; 2) Mobile terminal (MT) function (i.e., IAB-MT), that is, the IAB node can be controlled and scheduled by the parent node (base station, IAB node or donor IAB) like a UE. The parent backhaul link and the child backhaul link, or the parent backhaul link and the access link of the IAB node can be multiplexed, that is, the IAB node can send data on the uplink parent backhaul link and the downlink access link (downlink child backhaul link and / or downlink access link) at the same time. In the above multiplexing scenario, there is currently no effective solution to reasonably determine the transmission power of the uplink transmission when the total power of the IAB node is limited, and the transmission performance and communication quality of the IAB network cannot be guaranteed.

[0042] In an embodiment of the present application, a power determination method is provided, which is applied to a first communication node, and the first communication node includes but is not limited to an IAB node, a relay node, an IAB-MT, an IAB-DU, a Transmission Reception Point (TRP), an Access Point (AP), and a base station (gNB). The first communication node includes two functional units: a first unit (e.g., a terminal part of an IAB-MT or a relay node) and a second unit (e.g., a base station part of an IAB-DU or a relay node). For the uplink transmission of the first unit, the first communication node determines whether to determine the power of the uplink transmission according to the power control parameter set associated with the time domain resource group based on the overlap of the uplink transmission and the time domain resource group in the time domain.

[0043] Figure 1A flowchart of a power determination method provided by an embodiment is shown in FIG. Figure 1 As shown, the method provided in this embodiment includes step 110 and step 120.

[0044] In step 110, time domain resource groups are determined, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node.

[0045] In this embodiment, there is at least one time domain resource group, and the time domain resource group may be predefined or configured by the second communication node for the first communication node. The second communication node is, for example, a donor IAB node, an IAB node, an IAB-MT, an IAB-DU, a base station (gNB, eNB, ng-eNB, en-gNB), a relay node, a TRP, an AP, a CU, etc. The time domain resource group may be determined based on the time domain resource configuration, the timing mode adopted by the time domain resource, the time domain resource type, the signal channel type, etc. Each time domain resource group is associated with a power control parameter set, and the power control parameter set includes a transmit power upper limit related to the first communication node, thereby limiting the transmit power of the uplink transmission of the first unit according to the power control parameter set corresponding to the specific time domain resource group, and then, when the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit under the multiplexing condition can be guaranteed.

[0046] In step 120, the transmit power of the uplink transmission of the first unit is determined according to the time domain resource group.

[0047] In this embodiment, the first communication node may determine the transmit power of the uplink transmission according to a specific time domain resource group in the at least one determined time domain resource group, for example, according to a power control parameter set associated with the time domain resource group overlapping with the uplink transmission of the first unit, and if the uplink transmission of the first unit overlaps with the time domain resource group A, the power control parameter set associated with the time domain resource group A includes the transmit power upper limit P of the first unit. MT , then the uplink transmission power finally determined by the first communication node does not exceed P MT .

[0048] In some embodiments, if a unique time domain resource group that overlaps with the uplink transmission of the first unit cannot be determined in at least one determined time domain resource group (for example, the uplink transmission does not overlap with any time domain resource group, or overlaps with multiple time domain resource groups), a default power control parameter set may be used to determine the transmit power of the uplink transmission, or the default transmit power range or upper limit may be considered, or the transmit power of the uplink transmission may be determined autonomously without considering the limitation.

[0049] In this embodiment, for the uplink transmission of the first unit, the first communication node can determine whether to limit the power of the uplink transmission according to the restriction of the power control parameter set and how to limit the power of the uplink transmission according to the power control parameter set by analyzing the time domain resource group. When the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit can be guaranteed in the case of multiplexing, and the flexibility and reliability of power control are also improved.

[0050] In one embodiment, the time domain resource group is determined according to at least one of the following: time domain resource configuration, a timing mode adopted by the time domain resource, a time domain resource type, and a transmission type.

[0051] In this embodiment, the time domain resource group can be determined according to the time domain resource configuration. For example, the first communication node is configured with time domain resources corresponding to several consecutive time units at a specific position in each cycle to form a time domain resource group, and time domain resources corresponding to several consecutive time units at another position in each cycle to form another time domain resource group, etc. For another example, time units with the same result of modulo operation of time unit numbers to N form a time domain resource group, or time units with the result of modulo operation of time unit numbers to N belonging to the same set of settings form a time domain resource group, etc.

[0052] The time domain resource group can also be determined based on the timing mode adopted by the time domain resources. For example, the time domain resources within the effective time of the timing mode associated with the same power control parameter set constitute a time domain resource group, or the time domain resources corresponding to the timing mode associated with the same power control parameter set are a time domain resource group, wherein the time domain resources corresponding to each timing mode can be determined based on the timing mode configuration.

[0053] The time domain resource group may also be determined according to the correspondence between the time domain resource type and the time domain resource group. For example, time domain resources corresponding to groups of different time domain resource types belong to different time domain resource groups.

[0054] The time domain resource group can also be determined based on the correspondence between the type of transmission and the time domain resource group. The type of transmission includes the type of signal and channel. For example, if a time domain resource corresponds to a certain signal type and a certain channel type, then time domain resources of the same signal type and channel type belong to the same time domain resource group, and time domain resources corresponding to groups of different transmission types belong to different time domain resource groups.

[0055] In one embodiment, the power control parameter set includes at least one of a first power control parameter and a second power control parameter. The first power control parameter includes a transmission power upper limit related to the first communication node, and the related transmission power upper limits include at least one of the following: a transmission power upper limit of the first communication node, a transmission power upper limit of the first unit, a transmission power upper limit of the second unit, a transmission power upper limit of the first unit within a specific frequency range, a transmission power upper limit of a service cell of the first unit, a transmission power upper limit of a service cell group of the first unit, a transmission power upper limit of a service cell of the second unit, and a transmission power upper limit of a service cell group of the second unit.

[0056] The second power control parameter includes at least one of the following: at least one open-loop power control parameter set, at least one reference signal resource information for path loss measurement, and a closed-loop power control parameter. The open-loop power control parameter set includes at least one of the following: an open-loop parameter set index, a target received power, and a path loss compensation factor; the reference signal resource information includes at least one of the following: a reference signal configuration index for measuring path loss, and a reference signal resource indication; the closed-loop power control parameter includes at least one of the following: a number of closed-loop power control states, and a closed-loop power control state identifier.

[0057] In this embodiment, the first power control parameter can provide a relevant upper limit on the transmission power for determining the transmission power of the uplink transmission of the first unit, and the second power control parameter can provide a specific basis for calculating the transmission power of the uplink transmission by considering open-loop power control parameters, closed-loop power control parameters, path loss compensation factors, etc.

[0058] In one embodiment, step 110 includes: for each frequency range or each service cell group, determining at least one time domain resource group; step 120 includes: for each frequency range or each service cell group, determining the transmission power of the uplink transmission of the first unit according to the corresponding time domain resource group.

[0059] In this embodiment, one situation is that, for each frequency range, the first communication node determines at least one time domain resource group according to the corresponding time domain resource configuration. For example, the first communication node is an IAB node, the first unit is an IAB-MT, and the second unit is an IAB-DU. IAB-MT is configured with service cells in frequency range 1 (i.e., FR1) and frequency range 2 (i.e., FR2), respectively, and IAB-DU is configured with service cells in FR1 and FR2, respectively. For FR1 and FR2, the IAB node is provided with a time domain resource configuration, respectively. In this case, the time domain resource group may also be configured or predefined for each frequency range, and the association between the time domain resource group and the power control parameter set may also be configured or predefined for each frequency range.

[0060] In another case, for each service cell group, the first communication node determines at least one time domain resource group according to the corresponding time domain resource configuration. For example, the first communication node is an IAB node, the first unit is an IAB-MT, and the second unit is an IAB-DU. In frequency range 1, IAB-MT is configured with service cell groups cg0 and cg1, and in frequency range 2, service cell groups cg2 and cg3 are configured. For each service cell group, the IAB node is provided with a time domain resource configuration, that is, a total of 4 time domain resource configurations are provided. In this case, the time domain resource group may also be configured or predefined for each service cell group, and the association between the time domain resource group and the power control parameter set may also be configured or predefined for each service cell group.

[0061] In one embodiment, the division of the service cell groups is related to the duplex capability of the first communication node. For example, the first communication node is an IAB node, the first unit is an IAB-MT, and the second unit is an IAB-DU. For the two service cells of the IAB-MT: cell x and cell y, the IAB node supports cell x and k1 service cells of the IAB-DU to send simultaneously, and supports cell y and k2 service cells of the IAB-DU to send simultaneously. If k1 and k2 belong to the same value range, it can be considered that cell x and cell y have similar duplex capabilities, and they can be used as a service cell group. At least one value range can be defined, and each value range corresponds to at most one service cell group. For a value range, if for each service cell of the IAB-MT, the number of service cells of the IAB-DU that can be sent simultaneously with it does not belong to the value range, then the value range does not correspond to any cell group of the IAB-MT. In this embodiment, the IAB node supports the simultaneous transmission of the service cell of the IAB-MT and the k service cells of the IAB-DU, which means that the IAB node supports the transmission of uplink signals or channels on the service cell of the IAB-MT, and simultaneously transmits downlink signals or channels on the k service cells of the IAB-DU. There is a power sharing problem in the service cell that supports the simultaneous transmission of IAB-MT and IAB-DU.

[0062] The division of the serving cell groups may also be related to other factors, such as the working frequency of the serving cell, the antenna configuration of the IAB node, the uplink transmission timing advance of the IAB-MT, etc.

[0063] In one embodiment, the first communication node also needs to be provided (the time domain resource configuration also includes) at least one of the following information: frequency range information, service cell group information of the first unit.

[0064] In one embodiment, the first communication node is an IAB node, the first unit is an IAB-MT, and the second unit is an IAB-DU. The CU may provide the carrier frequency information of the service cell of the IAB-DU to the parent node of the IAB node, or the IAB-MT may provide the carrier frequency information of the service cell of the IAB-DU to the parent node of the IAB node or the service cell of the IAB-MT. The carrier frequency information is at least one of the following: frequency range, frequency point, operating frequency band, operating frequency band list, subcarrier spacing, and bandwidth.

[0065] In one embodiment, the first communication node also needs to be provided with a reference timing indication, where the reference timing indication is used to indicate whether the time domain resource configuration corresponds to the transmission timing of the first unit or the transmission timing of the second unit.

[0066] In one embodiment, when the first communication node is not provided with a reference timing indication, the default time domain resource configuration corresponds to the transmission timing of the first unit, or the default time domain resource configuration corresponds to the transmission timing of the second unit.

[0067] In one embodiment, the first communication node reports the sending timing difference between the first unit and the second unit, for example, the IAB-MT reports the sending timing difference.

[0068] In one embodiment, to determine the time domain resource group, the IAB node is provided with at least one of the following time domain resource group related information: time domain resource configuration, frequency range information, IAB-MT service cell group information, reference timing indication. For example, the parent node of the IAB node or the service cell of the IAB-MT provides the time domain resource group related information to the IAB-MT through RRC signaling or MAC CE or physical layer signaling; or, the CU provides the time domain resource group related information to the IAB-DU through F1 application protocol (F1AP) signaling.

[0069] In one embodiment, different information in the time domain resource group related information may be provided to the IAB node through different signaling.

[0070] In one embodiment, step 120 includes at least one of the following:

[0071] a1. In the case where the uplink transmission of the serving cell or serving cell group of the first unit overlaps with the resources corresponding to a time domain resource group in the time domain, the transmit power of the uplink transmission is determined according to the power control parameter set associated with the time domain resource group;

[0072] a2. When the uplink transmission of the serving cell or serving cell group of the first unit overlaps with the resources corresponding to at least two time domain resource groups in the time domain, the transmit power of the uplink transmission is determined according to the power control parameter set associated with the target time domain resource group in the at least two time domain resource groups, or the transmit power of the uplink transmission is determined according to the default power control parameter set, or the transmit power of the uplink transmission is determined, and the transmit power of the uplink transmission is independent of the power control parameter set;

[0073] a3. When the uplink transmission of the serving cell or serving cell group of the first unit does not overlap with the resources corresponding to any time domain resource group in the time domain, the transmit power of the uplink transmission is determined according to the default power control parameter set, or the transmit power of the uplink transmission is determined, and the transmit power of the uplink transmission is independent of the power control parameter set;

[0074] a4. In the case where the uplink transmission of the serving cell or serving cell group of the first unit is multi-slot scheduling, for the time slot in which the uplink transmission does not overlap with any time domain resource group, determining the transmit power of the uplink transmission in the time slot, the transmit power of the uplink transmission in the time slot is independent of the power control parameter set, or determining the transmit power of the uplink transmission in the time slot, the transmit power of the uplink transmission in the time slot is independent of the transmit power of the downlink transmission of the second unit;

[0075] a5. In the case where the uplink transmission of the serving cell or serving cell group of the first unit is multi-slot scheduling, for the time slot where the uplink transmission overlaps with a time domain resource group, the transmit power of the uplink transmission in the time slot is determined according to the power control parameter set associated with the time domain resource group;

[0076] a6. In the case where the uplink transmission of the service cell or service cell group of the first unit is multi-slot scheduled, for the time slot in which the uplink transmission overlaps with at least two time domain resource groups, the transmit power of the uplink transmission in the time slot is determined according to a power control parameter set associated with a target time domain resource group in the at least two time domain resource groups, or the transmit power of the uplink transmission in the time slot is determined according to a default power control parameter set, or the transmit power of the uplink transmission in the time slot is determined, and the transmit power of the uplink transmission in the time slot is independent of the power control parameter set.

[0077] Taking the power control parameter set including the first power control parameter (the upper limit of the transmission power associated with the first communication node) as an example, each time domain resource group is associated with a power control parameter set. If a time domain resource group is not configured to be associated with a power control parameter set, the time domain resource group may be associated with a default power control parameter set, or may not be associated with any power control parameter set. The association relationship between the time domain resource group and the power control parameter set may be predefined, or the second communication node may be configured for the first communication node or for the first unit. When the time domain resource group is not associated with any power control parameter set, the power control parameter set corresponding to the time domain resource group may be the power control parameter set most recently adopted by the first unit, or the power control parameter set with the least restriction corresponding to other time domain resource groups, or the power control parameter set with the most restriction corresponding to other time domain resource groups.

[0078] In the case where at least one time domain resource group is configured or predefined for a frequency range, the first power control parameter associated with the time domain resource group is the upper limit of the transmit power associated with the first unit in the frequency range. For example, the first power control parameter includes at least one of the following: the upper limit of the transmit power of the service cell of the first unit in a specific frequency range, the upper limit of the transmit power of the service cell group of the first unit in a specific frequency range, and the upper limit of the transmit power of the first unit in a specific frequency range. That is, the first power control parameter needs to be limited to a specific frequency range.

[0079] The transmit power upper limit of the service cell of the first unit may refer to the transmit power upper limit of each service cell, or the transmit power upper limit shared by all service cells. For example, the first unit has 4 service cells, and the transmit power upper limit of each service cell means that the transmit power upper limit corresponding to service cell i is P i , i=0,1,2,3; or, the transmission power upper limit shared by all serving cells is P.

[0080] The first communication node (for example, an IAB node) or the first unit (IAB-MT) may obtain the first power control parameter in one of the following ways:

[0081] Mode 1: provided by the parent node of the IAB node or the serving cell of the IAB-MT. For example, the parent node of the IAB node or the serving cell of the IAB-MT configures the first power control parameter to the IAB-MT through at least one of RRC signaling, MAC CE or physical layer signaling;

[0082] Mode 2: Provided by CU. For example, CU provides it to the parent node of the IAB node through F1AP, and then the parent node of the IAB node sends it to IAB-MT through RRC signaling; or, CU provides it to the IAB node through F1AP;

[0083] Mode 3: The IAB node determines autonomously. For example, the upper limit of the transmit power related to the IAB node is determined within the transmit power range specified in the protocol.

[0084] The IAB node or IAB-MT may acquire the configuration of the time domain resource group and / or the association between the time domain resource group and the power control parameter set in a manner similar to that of acquiring the first power control parameter.

[0085] On this basis, the process of determining the transmit power of the uplink transmission satisfies at least one of the following:

[0086] When the uplink transmission of the IAB-MT overlaps with a time domain resource group in the time domain, the transmit power of the uplink transmission needs to meet the limitation of the first power control parameter corresponding to the time domain resource group;

[0087] In the case where the uplink transmission of the IAB-MT overlaps with at least two time domain resource groups in the time domain, the transmit power of the uplink transmission needs to meet the limitation of the first power control parameter corresponding to the target time domain resource group; or, the transmit power of the uplink transmission does not need to consider the limitation of the first power control parameter corresponding to any time domain resource group, or can directly adopt the limitation of the default first power control parameter;

[0088] When the uplink transmission of IAB-MT does not overlap with any time domain resource group in the time domain, the transmission power of the uplink transmission does not need to consider the limitation of the first power control parameter corresponding to any time domain resource group, or can directly adopt the default first power control parameter limitation.

[0089] In addition, if the uplink transmission of the first unit is a multi-time slot scheduled transmission, for the time slot in which the uplink transmission does not overlap with any time domain resource group, it is not necessary to consider the first power control parameter restriction corresponding to any time domain resource group when determining the transmission power of the uplink transmission in the time slot, or the default first power control parameter restriction can be directly adopted; for the time slot in which the uplink transmission overlaps with only one time domain resource group, it is necessary to consider the first power control parameter restriction corresponding to the time domain resource group when determining the transmission power of the uplink transmission in the time slot; for the time slot in which the uplink transmission overlaps with at least two time domain resource groups, it is necessary to consider the first power control parameter restriction corresponding to the target time domain resource group when determining the transmission power of the uplink transmission in the time slot, or it is not necessary to consider the first power control parameter restriction corresponding to any time domain resource group, or the default first power control parameter restriction can be directly adopted. Among them, the default first power control parameter is a power control parameter that is not associated with a time domain resource group. The method for obtaining the default first power control parameter is similar to that of the first power control parameter.

[0090] Figure 2FIG. 1 is a schematic diagram of an embodiment of an uplink transmission overlapping with a time domain resource group. Figure 2 As shown, uplink transmission 2 overlaps with two time domain resource groups (time domain resource group 1 and time domain resource group 2) in the time domain, and the two time domain resource groups are respectively associated with power control parameter set 1 and power control parameter set 2. For uplink transmission 2, a target time domain resource group is selected from the two time domain resource groups according to a certain rule, for example, the earliest time domain resource group (time domain resource group 2) among the overlapping time domain resource groups, and the transmission power of uplink transmission 2 meets the restrictions of the power control parameter set associated with the target time domain resource group. For uplink transmission 1, it only overlaps with time domain resource group 1, and the transmission power of uplink transmission 1 only needs to meet the restrictions of power control parameter set 1. Assume that the first power control parameter corresponding to time domain resource group 1 is the transmission power upper limit P of the first unit. MT , when allocating power for uplink transmission 1, it is necessary to ensure that the total power of uplink transmission 1 overlapping with time domain resource group 1 cannot exceed P MT In P MT Under the limitation of the maximum transmission power of the first unit, the transmission power of the uplink transmission 1 can be determined in a similar way to the method in which the terminal determines the uplink transmission power in the New Radio (NR) protocol.

[0091] In addition, for different scheduling types, other power allocation methods may also be used. If it is for different scheduling types, for example, uplink transmission is multi-time slot scheduling, then for the part of the uplink transmission that does not overlap with any time domain resource group, it is not necessary to meet the first power control parameter limit corresponding to any time domain resource group when determining its transmit power, and it is necessary to consider the first power control parameter limit corresponding to the overlapping time domain resource group when determining the transmit power of the remaining part of the uplink transmission. For example Figure 2 The uplink transmission 2 in the scheme is multi-slot scheduling, that is, a transport block (Transport Block) or a physical uplink control channel (PUCCH) is repeatedly transmitted in multiple consecutive time slots. For the time slot of uplink transmission 2 that only overlaps with time domain resource group 1, the first power control parameter limit corresponding to time domain resource group 1 needs to be met when determining its transmit power. For the time slot of uplink transmission 2 that only overlaps with time domain resource group 2, the first power control parameter limit corresponding to time domain resource group 2 needs to be met when determining its transmit power. For the time slot of uplink transmission 2 that overlaps with both time domain resource group 1 and time domain resource group 2, the first power control parameter limit corresponding to the target time domain resource group determined according to certain rules needs to be met when determining its transmit power.

[0092] Figure 3 A schematic diagram of an uplink transmission overlapping with a time domain resource group provided in another embodiment. Figure 3 As shown, uplink transmission 3 overlaps with a time domain resource group (time domain resource group 1) in the time domain, and the time domain resource group corresponds to power control parameter set 1. Therefore, for uplink transmission 3, the restrictions of power control parameter set 1 need to be met. Figure 3 In the protocol, uplink transmission 4 does not overlap with any time domain resource group, and the transmit power allocation of uplink transmission 4 does not need to consider the first power control parameter limit corresponding to any time domain resource group. For uplink transmission 4, power can be allocated to uplink transmission 4 in a similar manner to the way the terminal determines the uplink power in the NR protocol. In addition, for uplink transmission scheduled by multiple time slots, the transmit power of the uplink transmission in each time slot can also be determined based on the overlap between the uplink transmission and the time domain resource group in each time slot. For example, if uplink transmission 3 is scheduled by multiple time slots, then for the part of the uplink transmission in uplink transmission 3 that does not overlap with any time domain resource group, the transmit power of the part of the uplink transmission does not need to meet the first power control parameter limit corresponding to any time domain resource group when determining the transmit power of the part of the uplink transmission, but for the part of the uplink transmission 3 that overlaps with time domain resource group 1, it is necessary to meet the limit of power control parameter set 1.

[0093] In one embodiment, at the first communication node, according to the first power control parameter associated with the time domain resource group, the transmission power upper limit P of the first unit MT When determining the transmit power of uplink transmission, if the first power control parameter associated with the time domain resource group does not have P configured MT , then the time domain resource group is associated with P in other time domain resource groups MT or the minimum value of P in other time domain resource groups. MT The maximum value among the P values, or the P value associated with the most recent use of the first unit MT , or the time domain resource group is associated with P in the default power control parameter set MT .

[0094] In one embodiment, when a first communication node determines the transmission power of uplink transmission based on the transmission power upper limit P of the service cell (or service cell group) of the first unit in the first power control parameter associated with the time domain resource group, if P is not configured in the first power control parameter associated with the time domain resource group, the time domain resource group is associated with the minimum value of P among other time domain resource groups, or is associated with the maximum value of P among other time domain resource groups, or is associated with the P most recently used by the first unit, or the time domain resource group is associated with P in the default power control parameter set.

[0095] In the case where the first communication node determines the transmit power of the uplink transmission according to the transmit power upper limit P of the serving cell (or serving cell group) of the first unit in the first power control parameter associated with the time domain resource group, the transmit power upper limit P of the first unit in the first power control parameter associated with the time domain resource group may be adopted. MT A similar method is used to determine the transmission power of uplink transmission, that is, based on the overlapping relationship between the uplink transmission of the first unit and the time domain resource group, it is determined whether the transmission power of uplink transmission needs to meet the transmission power upper limit of the service cell (or service cell group) of the first unit in the corresponding first power control parameter.

[0096] The above process of determining the transmission power of the uplink transmission of the first unit can be for each frequency range, that is, for each frequency range, when determining the transmission power of the uplink transmission of the first unit, it is necessary to consider the limitation of the first power control parameter corresponding to the time domain resource group corresponding to the frequency range; it can also be for each service cell group of the first unit, that is, for each service cell group, when determining the transmission power of the uplink transmission of the first unit, it is necessary to consider the limitation of the first power control parameter corresponding to the time domain resource group corresponding to the service cell group.

[0097] In one embodiment, the power control parameter set includes a second power control parameter, and the transmit power of the uplink transmission of the first unit needs to meet the restriction of the second power control parameter. The default second power control parameter is a second power control parameter that is not associated with the time domain resource group. The process of determining the transmit power of the uplink transmission according to the second power control parameter associated with the time domain resource group is similar to the process of determining the transmit power of the uplink transmission according to the first power control parameter associated with the time domain resource group in the above embodiment, and reference may be made to any of the above embodiments.

[0098] The first communication node can obtain at least one of the following through high-layer signaling and / or physical layer signaling: the second power control parameter corresponding to each time domain resource group, the default second power control parameter, for example, the parent node of the IAB node or the service cell of the IAB-MT provides the second power control parameter corresponding to each time domain resource group through RRC signaling, and the association between the detection reference signal resource indicator (SRS Resource Indicator, SRI) and the second power control parameter. For example, the association between SRI and at least one of the open-loop parameter set index, the reference signal configuration index for measuring path loss, and the power control process identifier; the first communication node can obtain at least one of the following from the SRI indicated by the downlink control information (Downlink Control Information, DCI): open-loop power control parameters, reference signal resources for path loss measurement, and closed-loop power control status.

[0099] In one embodiment, for a specific closed-loop power control state, the first communication node also needs to be provided with a closed-loop power adjustment amount. For example, the parent node of the IAB node or the service cell of the IAB-MT provides the closed-loop power adjustment amount through DCI. The closed-loop power control information carried in the DCI is called a transmission power control (TPC) command.

[0100] In one embodiment, the time domain resource group is determined according to the time domain resource configuration; the time domain resource configuration includes at least one of the following: a time domain resource group identifier, a configuration period, a starting time unit number or a time unit offset of a time unit within the period, a number of consecutive time units or a resource duration, a set of time unit numbers within the period, a start and length indicator value (Start and Length Indicator Value, SLIV) of time domain resources within the period, and a reference subcarrier spacing.

[0101] In one embodiment, the unit of the offset or resource length is a time unit, or one of the following: a radio frame, a half frame, a subframe, a time slot, a mini-slot, or one or more orthogonal frequency division multiplexing (OFDM) symbols.

[0102] In one embodiment, the time unit is one of the following: a radio frame, a half frame, a subframe, a time slot, a mini-time slot, one or more OFDM symbols.

[0103] In one embodiment, SLIV is used to indicate the starting time unit S of the time domain resource group within the period and the resource length L starting from the starting time unit. For example, assuming that the period is M time units, the SLIV corresponding to S and L can be calculated by the following formula: Then SLIV=M(L-1)+S, otherwise SLIV=M(M-L+1)+M-1-S.

[0104] After the first communication node receives SLIV, it can obtain S and L according to the following method: According to the calculation formula of SLIV: Since S+L≤M (because S and L indicate the time resources within a cycle, S is an integer in [0,M-1], and L is an integer in [1,MS]), therefore, The first communication node The relationship between the size of M and SLIV can tell which calculation formula is used to calculate it. Correspondingly, we can determine S = SLIV%M, or S=M-1-SLIV%M. Among them, % represents the remainder operation, Indicates rounding down.

[0105] In one embodiment, the starting position of the first configuration period is aligned with the starting position of radio frame 0. For example, for a time domain resource group, the starting position of the first period is aligned with the starting position of radio frame 0, and the time unit is a subframe (1 millisecond). Assume that the configuration of the time domain resource group is: the configuration period is 20 milliseconds (i.e., there are 20 subframes in the period, and the logical number of the subframe is an integer between 0 and 19), the logical number of the starting subframe in the period is 10, and the number of consecutive subframes starting from the starting subframe in the period is 4, then the resources corresponding to the time domain resource group are: subframes 10, 11, 12, 13 in radio frames 2n and 2n+1, where n=0, 1, ...., and the maximum value of n depends on the maximum number of radio frames. For example, if the maximum number of radio frames is 1023, then the maximum value of n is 511.

[0106] In one embodiment, the time domain resource group is determined according to the time domain resource configuration; the time domain resource configuration includes at least one of the following: a configuration period, a list of time domain resource groups, a time domain resource group identifier or a list index, and a reference subcarrier spacing.

[0107] In this embodiment, the list of time domain resource groups includes one of the following: a list of combinations of the starting time unit number of the time unit within a period and the number of consecutive time units or resource duration, a list of combinations of time unit offsets and the number of consecutive time units or resource duration, and a list of sets of time unit numbers within a period; each element in the list of time domain resource groups corresponds to a time domain resource group.

[0108] In this embodiment, the first communication node is provided with time domain resource configuration, and the periods of all time domain resource groups are the same and are equal to the configuration period.

[0109] In one embodiment, the time domain resource group is determined according to the time domain resource configuration; the time domain resource configuration includes: a parameter N of the modulo operation, a predetermined rule for determining the time domain resource group corresponding to the time unit according to the result of the modulo operation of the time unit number on N, and one or more subsets of the result of the modulo operation of the time unit number on N; the time domain resource configuration is predefined or obtained through specific signaling, wherein the specific signaling includes at least one of the following: Radio Resource Control (RRC) signaling, Medium Access Control (MAC) control element (CE), physical layer signaling, F1AP signaling.

[0110] For example, time units with the same result of time unit number mod N constitute a time domain resource group; or,

[0111] The time units belonging to the same subset as the result of the time unit number mod N constitute a time domain resource group, where the subset is a subset of the set constituted by the result of the time unit number mod N, and the intersection of any two subsets is an empty set. mod is a modulo operation, and N is an integer greater than or equal to 1.

[0112] One or more subsets of the set consisting of the above-mentioned predetermined rule, the value of N, and the result of the time unit number mod N can be obtained through the same specific signaling, or different specific signaling, and can also be predefined.

[0113] In this embodiment, the time unit number refers to the logical number of the time unit in the configuration period. For example, the time unit number is a non-negative integer. The time unit numbers in the configuration period are 0, 1, . . . and the number of time units included in the configuration period - 1.

[0114] In one embodiment, each time domain resource group corresponds to a time domain resource group identifier. For example, the result of the time unit number mod 4 is the set {0, 1, 2, 3}, the subset 0 is {0, 1}, the subset 1 is {2, 3}, the result of the time unit number mod 4 belongs to the subset 0 time units numbered 4n and 4n+1, which constitute the time domain resource group 0; the result of the time unit number mod 4 belongs to the subset 1 time units numbered 4n+2 and 4n+3, which constitute the time domain resource group 1, where n belongs to the non-negative integer set {0, 1, 2...}.

[0115] In one embodiment, items not configured in the time domain resource configuration may be determined by default. For example, if the time domain resource configuration does not include a predetermined rule, the protocol stipulates that a default rule is used. For another example, if N is not included, the value of N is predefined.

[0116] In one embodiment, different time domain resource groups are orthogonal in the time domain.

[0117] In one embodiment, the first communication node is provided with an association relationship between a time domain resource group and a power control parameter set. For example, the parent node or the serving cell of the IAB-MT configures the association between the time domain resource group and the power control parameter set for the IAB-MT through RRC signaling, MAC CE, or physical layer signaling, or the CU configures the association between the time domain resource group and the power control parameter set for the IAB node or IAB-DU through F1AP signaling.

[0118] In one embodiment, the protocol predefines the association between the time domain resource group and the power control parameter set.

[0119] In one embodiment, an IAB node is provided with a time domain resource configuration.

[0120] In one embodiment, the time domain resource group is determined according to the timing mode adopted by the time domain resources; the time domain resources within the effective time of the timing mode associated with the same power control parameter set constitute a time domain resource group, or the time domain resources corresponding to the timing mode associated with the same power control parameter set are a time domain resource group, wherein the time domain resources corresponding to the timing mode include the time domain resources using the timing mode determined according to the timing mode configuration;

[0121] The association between the timing mode and the power control parameter set includes one of the following:

[0122] The timing modes include M, where M is a positive integer, and each timing mode is associated with a power control parameter set;

[0123] The timing mode includes a co-transmission timing mode and a non-co-transmission timing mode, and each timing mode is associated with a power control parameter set;

[0124] The timing mode includes a co-receiving timing mode and a non-co-receiving timing mode, and each timing mode is associated with a power control parameter set;

[0125] The timing modes include a co-transmitting timing mode, a co-receiving timing mode and other timing modes, each of which is associated with a power control parameter set;

[0126] The timing modes include a co-transmitting timing mode, a co-receiving timing mode and other timing modes. The co-transmitting timing mode is associated with a power control parameter set, and the co-receiving timing mode and other timing modes are associated with a power control parameter set.

[0127] In this embodiment, within the effective time of the simultaneous transmission timing mode, the first communication node supports simultaneous transmission of the first unit and the second unit; or, the first communication node is an IAB node, and the IAB node supports simultaneous transmission of an uplink signal or channel of a parent return link and a downlink signal or channel of a child return link; or, the first communication node is an IAB node, and the IAB node supports simultaneous transmission of an uplink signal or channel of a return link and a downlink signal or channel of an access link.

[0128] During the effective time of the simultaneous reception timing mode, the first communication node supports simultaneous reception of the first unit and the second unit; or, the first communication node is an IAB node, and the IAB supports simultaneous reception of a downlink signal or channel of a parent return link and an uplink signal or channel of a child return link; or, the first communication node is an IAB node, and the IAB supports simultaneous reception of a downlink signal or channel of a return link and an uplink signal or channel of an access link.

[0129] In this embodiment, it is assumed that all timing modes supported by the first communication node constitute a timing mode set, and the first communication node needs to be configured or provided with which timing mode in the timing mode set to adopt. For example, the parent node provides a timing mode indication to the first communication node (or the first unit) through RRC signaling, MAC CE, or physical layer signaling; or the CU provides a timing mode indication to the first communication node (or the second unit) through F1AP signaling.

[0130] In one embodiment, the time domain resources within the effective time of the timing mode associated with the same power control parameter set constitute a time domain resource group, or the time domain resources corresponding to the timing mode associated with the same power control parameter set are a time domain resource group, that is, several timing modes associated with the same power control parameter set correspond one-to-one to the time domain resource group, so that the time domain resource group is associated with the power control parameter set.

[0131] In one embodiment, a plurality of timing modes associated with the same power control parameter set may be identified by an index, and the second communication node configures an association relationship between the power control parameter set and the index for the first communication node.

[0132] In one embodiment, the time resources within the effective time of the timing mode associated with the same power control parameter set are a time domain resource group. That is, the time domain resource group is associated with the power control parameter set. The timing mode effective time is the time slot from which the indicated timing mode takes effect (that is, the timing mode effective means using the timing mode for information or data transmission) from the time slot from which the first communication node receives the timing mode indication information, and it is valid until the first communication node receives the next indicated timing mode effective; or, the time slot from which the indicated timing mode takes effect after a delay of several time slots (for example, the number of delayed time slots provided for the IAB node) from the time slot from which the first communication node receives the timing mode indication information, and it is valid until the first communication node receives the next indicated timing mode effective.

[0133] In one embodiment, the first communication node obtains the association between the timing mode and the power control parameter set through RRC signaling or MAC CE or physical layer signaling or F1AP signaling, and the association may be an association between the indexes corresponding to several timing modes and the power control parameter set. For example, the parent node provides the association between the timing mode and the power control parameter set for the IAB node or IAB-MT through RRC signaling or MAC CE or physical layer signaling; or the CU provides the association between the timing mode and the power control parameter set for the IAB node or IAB-DU through F1AP signaling.

[0134] In one embodiment, the protocol predefines the association of a timing pattern and a set of control parameters.

[0135] In one embodiment, a timing mode indication may be configured for each first communication node, and an association between a timing mode and a power control parameter set may be configured or predefined; or, a timing mode indication may be configured for each frequency range of each first communication node, and an association between a timing mode and a power control parameter set may be configured or predefined, that is, different frequency ranges may correspond to different time domain resource groups and be associated with different power control parameter sets; or, a timing mode indication may be configured for each service cell group of the first unit of each first communication node, and an association between a timing mode and a power control parameter set may be configured or predefined, that is, different service cell groups may correspond to different time domain resource groups, and the same timing mode may be associated with different power control parameter sets.

[0136] In one embodiment, the first communication node is further provided with at least one of the following information: frequency range information, serving cell group information of the first unit, and reference timing indication.

[0137] In one embodiment, the timing mode configuration includes at least one of the following: configuring a period, and a time domain resource template corresponding to the timing mode within the period; wherein the time domain resource template includes one of the following: indicating the timing mode of each time unit within the period; indicating an index set of time units within the period corresponding to each timing mode; indicating the starting time unit index and the number of time units within the period corresponding to each timing mode; indicating the starting and length indication values ​​of the time units within the period corresponding to each timing mode; indicating the starting time unit index and the ending time unit index within the period corresponding to each timing mode.

[0138] In this embodiment, the IAB node is provided with a timing mode configuration, which includes: configuring a period, and a time domain resource template corresponding to the timing mode within the period. The time domain resource template corresponding to the timing mode within the period can be configured in one of the following ways:

[0139] Mode 1: For each time unit in the cycle, the Y bit is used to indicate the timing mode adopted by the time unit, where Where N num The total number of timing modes. Y N of the states num The states are respectively num For example, if the value of the Y bit is r, the timing mode r is used for the corresponding time unit, and so on;

[0140] Mode 2: For each timing mode, an index set of time units within a period in which the timing mode is adopted is indicated;

[0141] Mode 3: For each timing mode, indicate the starting time unit index and the number of time units in the period using the timing mode;

[0142] Mode 4: For each timing mode, indicate the start and length indication value SLIV of the time unit within the cycle using the timing mode;

[0143] Mode 5: For each timing mode, indicate the start time unit index and the end time unit index within the period of adopting the timing mode.

[0144] In one embodiment, the time domain resources corresponding to each timing mode are periodic, and the time domain resources within the period may be continuous or discontinuous.

[0145] Figure 4 FIG. 1 is a schematic diagram of time domain resources in a configuration period corresponding to a timing mode provided in an embodiment. Figure 4 As shown, the time domain resources in the period corresponding to each timing mode in (a) are continuous, and the time domain resources in the period corresponding to each timing mode in b) are discontinuous.

[0146] In one embodiment, a timing mode configuration may be provided for a first communication node, and an association between the timing mode and a power control parameter set may be configured or predefined; or, a timing mode configuration may be provided for each frequency range of the first communication node, and an association between the timing mode and a power control parameter set may be configured or predefined, that is, different frequency ranges may correspond to different time domain resource groups and be associated with different power control parameter sets; or, a timing mode configuration may be provided for each service cell group of the first unit of the first communication node, and an association between the timing mode and a power control parameter set may be configured or predefined, that is, different service cell groups may correspond to different time domain resource groups.

[0147] In one embodiment, the association relationship between the timing mode and the power control parameter set is predefined, or is indicated by the second communication node through specific signaling, or several association relationships between the timing modes and the power control parameter sets are predefined, and the second communication node indicates one of them through specific signaling, and the specific signaling includes at least one of the following: RRC signaling, MAC CE, physical layer signaling, F1AP signaling.

[0148] In one embodiment, the time domain resource group is determined according to one of the following: the time domain resource type, the type of transmission;

[0149] Step 110 includes one of the following:

[0150] The time domain resources are grouped according to the time domain resource type, and the time domain resources corresponding to the groups of different time domain resource types belong to different time domain resource groups;

[0151] The time domain resources are grouped according to the transmission type, and the time domain resources corresponding to the groups of different transmission types belong to different time domain resource groups.

[0152] In this embodiment, the time domain resources corresponding to the packets of the transmission type include: the time domain resources used by the signals or channels in the packets, or the time unit where the resources used by the signals or channels in the packets are located.

[0153] Taking the first communication node as an IAB node as an example, the time slot format of the service cell of the IAB-DU includes downlink symbols (Downlink, DL), uplink symbols (Uplink, UL) and flexible symbols (Flexible, F). The symbols in the time slot of the service cell of the IAB-DU have the following three attributes: hard, soft or unavailable (Not Available or unavailable, NA). Therefore, the time resource types of the service cell of the IAB-DU include 7 types: Hard DL, Hard F, Hard UL, Soft DL, Soft F, Soft UL, NA. Among them, on Hard resources (including DL, UL, F), the IAB-DU can directly schedule its child nodes without considering the resource allocation of the IAB-MT. NA resources are unavailable resources for the IAB-DU. For the IAB-DU, the availability of soft resources (including DL, UL, F) can be determined by the parent node indication (explicit indication) or the usage of the IAB-MT (implicit indication). The soft resources explicitly indicated as available by the parent node are equivalent to the Hard resources. In addition, the serving cell-level (or cell-specific) signals or channels of the IAB-DU, such as the SynchronizationSignal and PBCH block (SSB), the Physical Downlink Control Channel (PDCCH) of the System Information Block (SIB) SIB1, the periodic Channel State Information-Reference Signal (CSI-RS), the Physical Random Access Channel (PRACH), the Scheduling Request (SR), etc., can be transmitted on NA resources or Soft resources. At this time, the NA resources or Soft resources for transmitting the cell-level (or cell-specific) signals or channels are equivalent to Hard resources. For the convenience of description, the Soft resources explicitly indicated as available and the NA resources or Soft resources occupied by the serving cell-specific signals or channels of the IAB-DU are referred to as equivalent Hard resources.

[0154] In one embodiment, the time domain resource group may be determined according to the resource type of the serving cell of the IAB-DU in a predefined and / or configured manner, including one of the following:

[0155] Hard resources are used as a time domain resource group;

[0156] Hard resources are grouped as time domain resource group 1, and other resources are grouped as time domain resource group 2;

[0157] Hard and equivalent Hard resources are used as time domain resource group 1, and other resources are used as time domain resource group 2;

[0158] Hard DL resources are used as a time domain resource group;

[0159] Hard DL resources are used as time domain resource group 1, and other resources are used as time domain resource group 2;

[0160] Hard DL and Hard F resources are grouped as a time domain resource;

[0161] Hard DL and Hard F resources are used as time domain resource group 1, and other resources are used as time domain resource group 2;

[0162] Hard DL, Hard F, equivalent Hard DL, and equivalent Hard F resources are used as time domain resource group 1, and other resources are used as time domain resource group 2;

[0163] DL resources are regarded as a time domain resource group;

[0164] DL resources are used as time domain resource group 1, and other resources are used as time domain resource group 2;

[0165] DL and F resources are used as time domain resource group 1, and other resources are used as time domain resource group 2;

[0166] Hard DL resources, Hard UL resources, and other resources are each a time domain resource group. That is, there are 3 time resource groups in total;

[0167] Hard DL resources, Hard F resources, Hard UL resources, and other resources are each a time domain resource group;

[0168] Hard DL resources, Hard UL resources, Hard F resources, and other resources are each a time domain resource group;

[0169] DL resources, UL resources, and other resources are each a time domain resource group;

[0170] DL resources, F resources, UL resources, and other resources are each a time domain resource group;

[0171] DL resources, UL resources, F resources, and other resources are each a time domain resource group.

[0172] In this embodiment, the Hard resource includes at least one of the following: Hard DL, Hard UL and Hard F resources.

[0173] In this embodiment, the equivalent Hard resource includes at least one of the following: equivalent Hard DL, equivalent Hard UL and equivalent Hard F resource.

[0174] In this embodiment, the DL resources include at least one of the following: Hard DL, Soft DL, a cell-specific downlink signal, or NA resources occupied by a channel.

[0175] In this embodiment, the F resource includes at least one of the following: Hard F, Soft F.

[0176] In one embodiment, the time domain resource group is determined according to the transmission type of the serving cell of the IAB-DU in a predefined and / or configured manner, including one of the following:

[0177] A cell-specific downlink signal or channel corresponds to one time domain resource group, and a signal or channel other than the cell-specific downlink signal or channel corresponds to another time domain resource group;

[0178] The time unit occupied by a cell-specific downlink signal or channel corresponds to one time domain resource group, and other time domain resources belong to another time domain resource group;

[0179] The cell-specific downlink signal or channel, the downlink physical control channel and its reference signal, the downlink shared channel and its reference signal respectively correspond to a time domain resource group;

[0180] A cell-specific downlink signal or channel, a downlink signal or channel other than the cell-specific downlink signal or channel, and an uplink signal or channel correspond to a time domain resource group respectively;

[0181] A downlink signal or channel corresponds to one time domain resource group, and an uplink signal or channel corresponds to another time domain resource group.

[0182] The cell-specific downlink signal or channel includes at least one of the following:

[0183] SSB, PDCCH of SIB1, CSI-RS.

[0184] In one embodiment, a number of signals or channels corresponding to the same time domain resource group may be identified by an index, and the second communication node configures an association relationship between a power control parameter set and the index for the first communication node.

[0185] In one embodiment, the above-mentioned division method of one time domain resource group is predefined; or the above-mentioned division method of at least one time domain resource group is predefined, and the first communication node is configured with one of them through high-level signaling or physical layer signaling; or, the first communication node is configured with at least one division method of the time domain resource group through high-level signaling, and then indicates one of them through physical layer signaling; or, the first communication node is configured with a division method of the time domain resource group through high-level signaling. The high-level signaling is one of the following: F1AP, RRC signaling, MAC CE.

[0186] In one embodiment, the first communication node is an IAB node, and the IAB node is provided with an IAB-DU reference cell identifier. The serving cell identifier refers to an identifier of a serving cell to which the time domain resource group belongs.

[0187] In one embodiment, for each frequency band range or each serving cell group of the IAB-MT, the above method is used to determine the time domain resource group of the IAB node.

[0188] In one embodiment, the power control parameter set includes a first power control parameter and a second power control parameter; determining the transmit power of the uplink transmission of the first unit according to the time domain resource group includes at least one of the following:

[0189] b1. When the uplink transmission of the serving cell or serving cell group of the first unit overlaps with the resources corresponding to a time domain resource group in the time domain, the transmit power of the uplink transmission is determined according to the second power control parameter associated with the time domain resource group under the condition that the first power control parameter restriction associated with the time domain resource group is satisfied;

[0190] b2. In the case where the uplink transmission of the service cell or service cell group of the first unit overlaps with the resources corresponding to at least two time domain resource groups in the time domain, the transmit power of the uplink transmission is determined according to the second power control parameter associated with the target time domain resource group in the at least two time domain resource groups under the condition that the first power control parameter restriction associated with the target time domain resource group is satisfied, or, under the condition that the default first power control parameter restriction is satisfied, the transmit power of the uplink transmission is determined according to the default second power control parameter, or, the transmit power of the uplink transmission is determined, and the transmit power of the uplink transmission is independent of the first power control parameter and the second power control parameter;

[0191] b3. When the uplink transmission of the serving cell or serving cell group of the first unit does not overlap with the resources corresponding to any time domain resource group in the time domain, the transmit power of the uplink transmission is determined according to the default second power control parameter under the condition that the default first power control parameter restriction is met, or, without considering the first power control parameter, the transmit power of the uplink transmission is determined according to the default second power control parameter, or the transmit power of the uplink transmission is determined, and the transmit power of the uplink transmission is independent of the power control parameter set;

[0192] b4. In the case where the uplink transmission of the serving cell or serving cell group of the first unit is multi-time slot scheduling, for the time slot in which the uplink transmission does not overlap with any time domain resource group, determine the transmit power of the uplink transmission in the time slot, the transmit power of the uplink transmission in the time slot is independent of the power control parameter set, or, under the condition that the default first power control parameter limit is met, determine the transmit power of the uplink transmission in the time slot according to the default second power control parameter;

[0193] b5. In the case where the uplink transmission of the serving cell or serving cell group of the first unit is multi-slot scheduling, for the time slot where the uplink transmission overlaps with a time domain resource group, under the condition that the first power control parameter restriction associated with the time domain resource group is satisfied, the transmit power of the uplink transmission in the time slot is determined according to the second power control parameter associated with the time domain resource group;

[0194] b6. In the case where the uplink transmission of the service cell or service cell group of the first unit is multi-time slot scheduling, for the time slot in which the uplink transmission overlaps with at least two time domain resource groups, the transmit power of the uplink transmission in the time slot is determined according to the second power control parameter associated with the target time domain resource group, under the condition that the first power control parameter restriction associated with the target time domain resource group in the at least two time domain resource groups is satisfied, or, under the condition that the default first power control parameter restriction is satisfied, the transmit power of the uplink transmission in the time slot is determined according to the default second power control parameter, or, the transmit power of the uplink transmission in the time slot is determined, and the transmit power of the uplink transmission in the time slot is independent of the power control parameter set.

[0195] In this embodiment, the power control parameter set includes a first power control parameter and a second power control parameter. The time domain resource group is associated with both the first power control parameter and the second power control parameter. The first power control parameter mainly includes the upper limit of the transmission power related to the first communication node, and the second power control parameter mainly includes the uplink power control parameter of the first unit. The transmission power of the uplink transmission of the first unit needs to meet the restrictions of the first power control parameter and the second power control parameter. If a time domain resource group is not configured to be associated with a power control parameter set, the time domain resource group is associated with a default power control parameter set.

[0196] In one embodiment, the transmission power of the uplink transmission of the first unit can be determined for each frequency range, that is, for a frequency range, the transmission of the uplink transmission is determined according to the first power control parameter and the second power control parameter corresponding to the time domain resource group corresponding to the frequency range; the transmission power of the uplink transmission can also be determined for each service cell group of the first unit, that is, for a service cell group of the first unit, the transmission power of the uplink transmission is determined according to the first power control parameter and the second power control parameter corresponding to the time domain resource group corresponding to the service cell group.

[0197] In one embodiment, the target time domain resource group in the at least two time domain resource groups includes one of the following:

[0198] The earliest time domain resource group among at least two time domain resource groups overlapping with uplink transmission;

[0199] The latest time domain resource group among at least two time domain resource groups overlapping with uplink transmission;

[0200] The time domain resource group with the smallest value of the upper limit parameter of the same type of transmission power among at least two time domain resource groups that overlap with the uplink transmission;

[0201] The time domain resource group with the largest value of the upper limit parameter of the same type of transmission power among at least two time domain resource groups that overlap with the uplink transmission;

[0202] The time domain resource group having the smallest average value of at least one type of transmission power upper limit parameter among at least two time domain resource groups overlapping with uplink transmission;

[0203] A time domain resource group having the largest average value of at least one type of transmission power upper limit parameter among at least two time domain resource groups overlapping with uplink transmission;

[0204] A time domain resource group determined by the first communication node or the first unit.

[0205] In this embodiment, the first communication node may determine a target time domain resource group from at least two time domain resource groups that overlap with the uplink transmission. The rule for determining the target time domain resource group may be predefined or configured by the second communication node. Uplink transmission refers to the transmission of at least one uplink signal or channel.

[0206] The embodiment of the present application also provides a power determination method, which is applied to a first communication node, and the first communication node is, for example, an IAB node or a relay node. The first communication node includes two functional units: a first unit (for example, an IAB-MT or a terminal part of a relay node) and a second unit (for example, an IAB-DU or a base station part of a relay node). For the uplink transmission of the first unit, the first communication node limits the power of the uplink transmission according to a power control parameter set. It should be noted that the power determination method of this embodiment and the power determination method of the above embodiment belong to the same concept, and the technical details not described in detail in this embodiment can be referred to any of the above embodiments.

[0207] Figure 7 A flowchart of a power determination method provided in another embodiment is shown in FIG. Figure 7 As shown, the method provided in this embodiment includes step 210 and step 220.

[0208] In step 210, a power control parameter set is determined, wherein the power control parameter set includes a transmission power upper limit associated with the first communication node.

[0209] In this embodiment, the power control parameter set includes a transmission power upper limit related to the first communication node, for example, a transmission power upper limit P of the first communication node. IAB , the upper limit of the transmission power of the first unit P MT Or the transmission power upper limit P of the serving cell group of the first unit MT , the upper limit of the transmission power of the second unit P DU , the upper limit of the transmission power of the first unit within a specific frequency range, etc., thereby limiting the transmission power of the uplink transmission of the first unit, and then when the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit can be guaranteed when multiplexing.

[0210] In step 220, the transmit power of the uplink transmission of the first unit is determined according to the power control parameter set.

[0211] In this embodiment, for the uplink transmission of the first unit, the first communication node limits the power of the uplink transmission according to the power control parameter set. When the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit can be guaranteed in the case of multiplexing, and the flexibility and reliability of power control are also improved.

[0212] In one embodiment, step 210 includes: for each frequency range or each service cell group, determining a power control parameter set; step 220 includes: for each frequency range or each service cell group, determining the transmission power of the uplink transmission of the first unit according to the corresponding power control parameter set.

[0213] In one embodiment, the power control parameter set includes at least one of the following: a transmission power upper limit of the first unit, a transmission power upper limit of the second unit, and a transmission power upper limit of the first communication node.

[0214] In one embodiment, step 220 includes at least one of the following:

[0215] c1. When the uplink transmission in the time domain resource i of the first unit overlaps with the downlink symbol or flexible symbol of the second unit in the time domain, determine the transmit power of the uplink transmission in the time domain resource i, the transmit power is less than or equal to the first target value;

[0216] c2. In the case where the uplink transmission of a unit overlapping with the time domain resource i overlaps with the downlink symbol or flexible symbol of the second unit in the time domain, determine the transmit power of the uplink transmission in the time domain resource i, the transmit power is less than or equal to the first target value;

[0217] The first target value is one of the following: the transmission power upper limit of the first unit, the difference between the transmission power upper limit of the first communication node and the transmission power upper limit of the second unit, and the minimum value of the transmission power upper limit of the first unit and the difference.

[0218] In this embodiment, if the uplink transmission in the time resource i of the first unit of the first communication node overlaps with the downlink or flexible symbol of the second unit of the first communication node in the time domain, the first target value P max The maximum transmit power of the first unit is used to determine the transmit power of the uplink transmission in the time resource i of the first unit; otherwise, the first unit does not consider P when determining the transmit power of the uplink transmission in the time resource i. max Or, if the uplink transmission of the first unit of the first communication node that overlaps with the time resource i overlaps with the downlink or flexible symbol of the second unit of the first communication node in the time domain, then P max The maximum transmit power of the first unit is used to determine the transmit power of the uplink transmission of the first unit overlapping with the time resource i; otherwise, the first unit does not consider P when determining the transmit power of the uplink transmission overlapping with the time resource i. max Among them, P max Is one of the following: MT , P IAB -P DU , P MT With P IAB -P DU The minimum value in .

[0219] The time resource is a time slot or a mini-time slot or a plurality of OFDM symbols, wherein a plurality of OFDM symbols refers to X consecutive symbols, and the value of X may be predefined or configured or is related to the number of symbols occupied by uplink transmission.

[0220] In one embodiment, the downlink or flexible symbol of the second unit refers to the downlink or flexible symbol configured by the centralized unit CU for the second unit of the first communication node; or, the Hard downlink or Hard flexible symbol configured by the centralized unit CU for the second unit of the first communication node; or the downlink or flexible symbol semi-statically configured by the second unit cell.

[0221] The following example shows that the first communication node is an IAB node, and the power control parameter includes the upper limit of the transmission power P of the IAB-MT. MT The method of determining the transmit power of uplink transmission is described exemplarily in the case of.

[0222] The IAB node or IAB-MT is provided with P MT For example, the serving cell of the IAB-MT or the parent node of the IAB node configures the P for the IAB-MT through RRC signaling, MAC CE or physical layer signaling. MT ; or CU configures P for IAB-MT through F1AP signaling MT .

[0223] If the uplink transmission in time slot i of IAB-MT overlaps with the downlink or flexible symbols of IAB-DU in the time domain, P MT The transmission power of the uplink transmission in time slot i of the IAB-MT is determined as the maximum transmission power of the IAB-MT; otherwise, the IAB-MT does not consider P when determining the transmission power of the uplink transmission in time slot i. MT .

[0224] Figure 5 A schematic diagram of an embodiment of an uplink transmission and a downlink or flexible symbol overlap is provided. Figure 5 As shown in (a), uplink transmission 1 and uplink transmission 2 of IAB-MT use 30kHz and 15kHz subcarrier spacing respectively. The time slot occupied by uplink transmission 1 is time slot i. Uplink transmission 2 overlaps with time slot i in the time domain, and the part overlapping with time slot i overlaps with the downlink symbol or F symbol of IAB-DU, that is, there is an uplink transmission in time slot i that overlaps with the downlink or F symbol of IAB-DU. Therefore, IAB-MT needs to consider P when determining the transmission power of uplink transmission. MT , that is, IAB-MT will P MT The transmit power of uplink transmission 1 and 2 is determined as the maximum transmit power of IAB-MT. Specifically, P MT The transmission power of uplink transmission 1 and 2 determined as the maximum transmission power of IAB-MT can be determined by satisfying that the sum of the transmission power of uplink transmission 1 and 2 does not exceed P MTIn this case, the transmission power of uplink transmissions 1 and 2 is determined by a method similar to that of ordinary terminals, for example, the method for determining the single uplink transmission power of ordinary terminals reused by IAB-MT, as well as the priority of multiple uplink transmission power allocation in carrier aggregation CA, and the power allocation rules of the primary cell group and the secondary cell group in the dual connection scenario.

[0225] Figure 5 The difference between (b) and (a) is that the time slot format (i.e., symbol type, such as DL, UL, or F symbol) of the IAB-DU is different. In (b), the portion of uplink transmission 2 overlapping with time slot i does not overlap with the downlink symbol or F symbol of the IAB-DU, i.e., there is no uplink transmission overlapping with the downlink or F symbol of the IAB-DU in time slot i. In this case, although the portion of uplink transmission 2 in time slot i-1 overlaps with the downlink or F symbol of the IAB-DU, since there is no uplink transmission overlapping with the downlink or F symbol of the IAB-DU in time slot i, the IAB-MT does not consider P when determining the transmit power of the uplink transmission in time slot i. MT , that is, there is no need to consider the transmission power limit P of IAB-MT configured by the upper node MT , or there is no need to consider the actual transmission power of the IAB-DU, or there is no need to consider the transmission power limit of the IAB-DU. It is only necessary to determine the uplink transmission power of the IAB-MT according to the power parameters of the IAB-MT defined in the protocol in a similar way to determining the uplink transmission power of an ordinary terminal.

[0226] In one embodiment, the IAB-MT may also use the following method to determine the transmit power of the uplink transmission. If the uplink transmission symbol of the IAB-MT overlapping with the time slot i overlaps with the downlink or flexible symbol of the IAB-DU in the time domain, P MT The transmit power of the uplink transmission of the IAB-MT overlapping with the time slot i is determined as the maximum transmit power of the IAB-MT; otherwise, the IAB-MT does not consider P when determining the transmit power of the uplink transmission overlapping with the time slot i. MT .

[0227] Figure 6 A schematic diagram of overlapping uplink transmission and downlink or flexible symbols provided in another embodiment. Figure 6As shown, uplink transmission 1 and uplink transmission 2 of IAB-MT use 30kHz and 15kHz subcarrier spacings respectively. The time slot occupied by uplink transmission 1 is time slot i. Uplink transmission 2 overlaps with time slot i in the time domain and overlaps with the downlink symbol or F symbol of IAB-DU. In this case, since uplink transmission 2 overlapping with time slot i overlaps with the downlink or F symbol of IAB-DU (although uplink transmission 1 in time slot i does not overlap with the downlink or F symbol of IAB-DU), IAB-MT needs to consider P when determining the transmission power of uplink transmission. MT It should be noted that uplink transmission 1 and uplink transmission 2 are merely examples, and in practice there may be more uplink transmissions or only one uplink transmission, but the method for determining the transmit power is similar.

[0228] In one embodiment, when the power control parameter includes other parameters, the method for the IAB-MT to determine the transmission power of the uplink transmission is similar, and P IAB -P DU , or P MT With P IAB -P DU Replace P with the minimum value in MT .

[0229] The time slot in the above embodiment may also be a mini time slot or a plurality of OFDM symbols. In the case of a plurality of OFDM symbols, the number of symbols may be predefined or configured or may be related to the number of symbols occupied by uplink transmission.

[0230] The upper limit of the IAB-MT transmission power may be provided according to the frequency band range or the IAB-MT cell group, and the transmission power of the IAB-MT uplink transmission may be determined according to the above method for each frequency band range or the IAB-MT cell group.

[0231] It should be noted that the transmit power upper limit in the calculation formula of this embodiment is a linear value. If the transmit power upper limit is a logarithmic value, it needs to be converted into a linear value before calculation.

[0232] In one embodiment, the downlink symbol or flexible symbol of the second unit includes one of the following: the downlink symbol or flexible symbol configured by the CU for the second unit; the hard downlink symbol time domain resources or flexible symbol time domain resources configured by the CU for the second unit; the downlink symbol or flexible symbol configured by the service cell of the second unit through RRC signaling; the downlink symbol or flexible symbol configured by the service cell of the second unit.

[0233] In one embodiment, the upper limit of the transmission power of the first unit is determined by one of the following methods:

[0234] Indicated by an upper node of the first communication node, wherein the upper node is a parent node or a centralized unit of the first communication node;

[0235] The upper node of the first communication node indicates a ratio of the transmit power upper limit of the first unit to the transmit power upper limit of the first communication node, and the transmit power upper limit of the first unit is determined according to the ratio and the transmit power upper limit of the first communication node;

[0236] The upper node of the first communication node indicates an offset of the transmit power upper limit of the first unit relative to the transmit power upper limit of the first communication node, and the transmit power upper limit of the first unit is determined according to the offset and the transmit power upper limit of the first communication node;

[0237] The upper limit of the transmission power of the first unit is determined according to the maximum output power range of the first unit or the terminal predefined in the protocol.

[0238] In this embodiment, P MT It can be provided by the upper node of the first communication node, where the upper node is the parent node or CU of the first communication node. For example, the upper node can provide it through any one of RRC signaling, MAC CE, and F1AP; the upper node of the first communication node can also provide the upper limit P of the transmit power of the first unit of the first communication node. MT The transmission power upper limit P of the first communication node IAB The ratio α MT , according to α MT and the transmission power upper limit P of the first communication node IAB Get the transmission power upper limit P of the first unit of the first communication node MT =α MT P IAB The upper node of the first communication node may also provide the upper limit P of the transmission power of the first unit of the first communication node. MT Relative to the upper limit of the transmission power of the first communication node P IAB The offset O MT , according to O MT and the transmission power upper limit P of the first communication node IAB Get the transmission power upper limit P of the first unit of the first communication node MT =P IAB -O MT Or, determine P according to the maximum output power range of the first unit or terminal predefined in the protocol MT .

[0239] In one embodiment, the upper limit of the transmission power of the second unit is determined by one of the following methods:

[0240] Indicated by an upper node of the first communication node, wherein the upper node is a parent node or a centralized unit of the first communication node;

[0241] The upper node of the first communication node indicates a ratio of the transmission power upper limit of the second unit to the transmission power upper limit of the first communication node, and the transmission power upper limit of the second unit is determined according to the ratio and the transmission power upper limit of the first communication node;

[0242] The upper node of the first communication node indicates an offset of the transmission power upper limit of the second unit relative to the transmission power upper limit of the first communication node, and the transmission power upper limit of the second unit is determined according to the offset and the transmission power upper limit of the first communication node; or,

[0243] The upper limit of the transmission power of the second unit is determined according to the maximum output power range of the second unit or the base station predefined in the protocol.

[0244] In this embodiment, P DU It can be provided by an upper node of the first communication node, where the upper node is a parent node or CU of the first communication node. For example, the upper node provides it through any one of RRC signaling, MAC CE, and F1AP; or, the upper node of the first communication node can also provide the upper limit P of the transmit power of the second unit of the first communication node. DU The transmission power upper limit P of the first communication node IAB The ratio α DU , according to α DU and the transmission power upper limit P of the first communication node IAB Get the transmission power upper limit P of the first unit of the first communication node DU =α DU P IAB ;or,

[0245] The upper node of the first communication node provides the upper limit of the transmission power of the second unit of the first communication node relative to the upper limit of the transmission power of the first communication node P IAB The offset O DU , according to O DU and the transmission power upper limit P of the first communication node IAB Get the transmission power upper limit P of the first unit of the first communication node DU =P IAB -O DU ;

[0246] Alternatively, the first communication node determines P within the range of the maximum output power of the IAB-DU or the base station predefined in the protocol. DU .

[0247] In one embodiment, the upper limit of the transmission power of the first communication node (PIAB ) is determined according to the type of the first communication node, or is indicated by an upper node of the first communication node, or is determined according to a maximum output power range of the first communication node predefined by the protocol.

[0248] In one embodiment, step 220 includes at least one of the following:

[0249] d1. When the uplink transmission in the time domain resource i of the first unit overlaps with the downlink transmission in the time domain resource j of the second unit in the time domain, determine the transmit power of the uplink transmission in the time domain resource i of the first unit, and the transmit power is less than or equal to the second target value; or

[0250] d2. In the case where there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission in the time domain resource i of the first unit, determine the transmit power of the uplink transmission in the time domain resource i of the first unit, and the transmit power is less than or equal to the third target value;

[0251] d3. When the uplink transmission in the time domain resource i of the first unit overlaps with the downlink transmission in the time domain resource j of the second unit in the time domain, and there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission in the time domain resource i of the first unit, determine the transmit power of the uplink transmission in the time domain resource i of the first unit, and the transmit power is less than or equal to the second target value;

[0252] d4. When the uplink transmission of the first unit overlapping with the time domain resource i overlaps with the downlink transmission in the time domain resource j of the second unit in the time domain, determine the transmit power of the uplink transmission in the time domain resource i of the first unit, and the transmit power is less than or equal to the second target value;

[0253] d5. In the case where there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission of the first unit overlapping with the time domain resource i, determine the transmit power of the uplink transmission in the time domain resource i of the first unit, and the transmit power is less than or equal to the third target value;

[0254] d6. When the uplink transmission of the first unit overlapping with the time domain resource i overlaps with the downlink transmission in the time domain resource j of the second unit in the time domain, and there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission of the first unit overlapping with the time domain resource i, determine the transmit power of the uplink transmission in the time domain resource i of the first unit, and the transmit power is less than or equal to the second target value;

[0255] The second target value is one of the following: the transmit power upper limit of the first unit, the difference between the transmit power upper limit of the first communication node and the transmit power upper limit of the second unit, the minimum value of the transmit power upper limit of the first unit and the difference, and the difference between the transmit power upper limit of the first communication node and the total power of downlink transmission in the time domain resource j of the second unit;

[0256] The third target value is one of the following: the transmission power upper limit of the first unit, the difference between the transmission power upper limit of the first communication node and the transmission power upper limit of the second unit, and the minimum value of the transmission power upper limit of the first unit and the difference.

[0257] In this embodiment, determining the transmit power of the uplink transmission of the first unit according to the power control parameter includes at least one of the following:

[0258] If the uplink transmission in the time resource i of the first unit of the first communication node overlaps with the downlink transmission in the time resource j of the second unit of the first communication node in the time domain, the second target value (P′) max ) as the maximum transmit power of the first unit to determine the transmit power of the uplink transmission in the time resource i of the first unit; otherwise, the first unit does not consider P′ when determining the transmit power of the uplink transmission in the time resource i max ;

[0259] If there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission in the time resource i of the first unit of the first communication node, the third target value is set to The maximum transmission power of the first unit is used to determine the transmission power of the uplink transmission in the time resource i of the first unit; otherwise, the first unit does not consider the transmission power of the uplink transmission in the time resource i when determining the transmission power of the uplink transmission in the time resource i.

[0260] If the uplink transmission in the time resource i of the first unit of the first communication node overlaps with the downlink transmission in the time resource j of the second unit of the first communication node in the time domain, and there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission in the time resource i of the first unit of the first communication node, then P′ max The maximum transmission power of the first unit is used to determine the transmission power of the uplink transmission in the time resource i of the first unit; otherwise, the first unit does not consider P′ when determining the transmission power of the uplink transmission in the time resource i. max ;

[0261] If the uplink transmission of the first unit of the first communication node overlapping with the time resource i overlaps with the downlink transmission of the second unit of the first communication node in the time resource j in the time domain, then P′ maxThe maximum transmission power of the first unit determines the transmission power of the uplink transmission of the first unit overlapping with the time resource i; otherwise, the first unit does not consider P′ when determining the transmission power of the uplink transmission overlapping with the time resource i. max ;

[0262] If there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission of the first unit of the first communication node overlapping with the time resource i, then The maximum transmit power of the first unit is used to determine the transmit power of the uplink transmission of the first unit overlapping with the time resource i; otherwise, the first unit does not consider the transmit power of the uplink transmission overlapping with the time resource i when determining the transmit power of the uplink transmission

[0263] If the uplink transmission of the first unit of the first communication node overlapping with the time resource i overlaps with the downlink transmission in the time resource j of the second unit of the first communication node in the time domain, and or there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission of the first unit of the first communication node overlapping with the time resource i, then P′ max The maximum transmission power of the first unit determines the transmission power of the uplink transmission of the first unit overlapping with the time resource i; otherwise, the first unit does not consider P′ when determining the transmission power of the uplink transmission overlapping with the time resource i. max .

[0264] In the above embodiment, P′ max Is one of the following: MT , P IAB -P DU , P MT With P IAB -P DU The minimum value in P MT and in, is the total power of downlink transmission in the time resource j of the second unit of the first communication node. Is one of the following: MT , P IAB -P DU , P MT With P IAB -P DU The minimum value in; the time resource is a time slot or a mini-time slot or multiple OFDM symbols, where multiple OFDM symbols refer to X consecutive symbols, and the value of X can be predefined or configured or related to the number of symbols occupied by uplink transmission; the value of the first threshold can be predefined or configured. Related transmit power upper limit (P MT , P DU or P IAB) can be obtained by referring to any of the above embodiments.

[0265] In the above embodiment, the second target value and the third target value may be different or the same value.

[0266] In the following, the first communication node is an IAB node, and the power control parameters include the transmission power upper limit P of IAB-MT. MT For example, at least one of the following methods may be used to determine the transmit power of the uplink transmission of the IAB-MT:

[0267] If the uplink transmission in time slot i of IAB-MT overlaps with the downlink transmission in time slot j of IAB-DU in the time domain, P MT The transmission power of the uplink transmission in time slot i of the IAB-MT is determined as the maximum transmission power of the IAB-MT; otherwise, the IAB-MT does not consider P when determining the transmission power of the uplink transmission in time slot i. MT ;or

[0268] If there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission in the time slot i of the IAB-MT, P MT The transmission power of the uplink transmission in time slot i of the IAB-MT is determined as the maximum transmission power of the IAB-MT; otherwise, the IAB-MT does not consider P when determining the transmission power of the uplink transmission in time slot i. MT ;or

[0269] If the uplink transmission in the time slot i of the IAB-MT overlaps with the downlink transmission in the time slot j of the IAB-DU in the time domain, and there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission in the time slot i of the IAB-MT, then P MT The transmission power of the uplink transmission in time slot i of the IAB-MT is determined as the maximum transmission power of the IAB-MT; otherwise, the IAB-MT does not consider P when determining the transmission power of the uplink transmission in time slot i. MT ;or

[0270] If the uplink transmission of IAB-MT overlapping with time slot i overlaps with the downlink transmission of IAB-DU in time slot j in the time domain, P MT The transmit power of the uplink transmission of the IAB-MT overlapping with the time slot i is determined as the maximum transmit power of the IAB-MT; otherwise, the IAB-MT does not consider P when determining the transmit power of the uplink transmission overlapping with the time slot i. MT ;or

[0271] If there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission of IAB-MT overlapping with time slot i, PMT The transmit power of the uplink transmission of the IAB-MT overlapping with the time slot i is determined as the maximum transmit power of the IAB-MT; otherwise, the IAB-MT does not consider P when determining the transmit power of the uplink transmission overlapping with the time slot i. MT ;or

[0272] If the uplink transmission of the IAB-MT overlapping with time slot i overlaps with the downlink transmission of the IAB-DU in time slot j in the time domain, and there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission of the IAB-MT overlapping with time slot i, then P MT The transmit power of the uplink transmission of the IAB-MT overlapping with the time slot i is determined as the maximum transmit power of the IAB-MT; otherwise, the IAB-MT does not consider P when determining the transmit power of the uplink transmission overlapping with the time slot i. MT .

[0273] When the power control parameters include other parameters, the method for IAB-MT to determine the transmit power of uplink transmission is similar to this, and P IAB -P DU , or P MT With P IAB -P DU Replace P with the minimum value in MT In addition, if the uplink transmission in time slot i of IAB-MT or the uplink transmission of IAB-MT overlapping with time slot i overlaps with the downlink transmission in time slot j of IAB-DU in the time domain, Replace P MT .in, is the total power of downlink transmission in time slot j of IAB-DU.

[0274] The time slot in the above embodiment may also be a mini time slot or a plurality of OFDM symbols. In the case of a plurality of OFDM symbols, the number of symbols may be predefined or configured or may be related to the number of symbols occupied by uplink transmission.

[0275] In the above embodiment, the larger the priority value or index of the uplink transmission is, the higher the priority of the uplink transmission is.

[0276] In one embodiment, the first threshold may be configured to the first communication node by the serving cell of the first unit or the parent node of the IAB node or the centralized unit. For example, the serving cell of the IAB-MT or the parent node of the IAB node configures the first threshold for the IAB-MT through RRC signaling or MAC CE or physical layer signaling; or the CU configures the first threshold for the IAB-MT through F1AP signaling, or the first threshold is predefined.

[0277] In one embodiment, for each frequency range, the first communication node obtains power control parameters and determines the transmission power of the uplink transmission of the first unit, and may also obtain power control parameters and determine the transmission power of the uplink transmission of the first unit for each service cell group of the first unit.

[0278] This embodiment considers the situation where uplink transmission overlaps with downlink transmission, which can be understood as a dynamic power sharing mode. The above other embodiments (considering the situation where uplink transmission overlaps with downlink or flexible symbols, or considering the situation where uplink transmission overlaps with time domain resource groups) can be understood as different semi-static power sharing modes. The first communication node can report the supported power sharing mode and / or report whether it has the ability of dynamic power sharing; the second communication node can configure the power sharing mode for the first communication node; the first communication node can determine the transmission power of the uplink transmission of the IAB-MT according to the configured power sharing mode using the method in the embodiment corresponding to the mode.

[0279] It should be noted that the uplink transmission in the above embodiments refers to the transmission of uplink signals or channels, and the uplink signals or channels include but are not limited to PUCCH, Physical Uplink Shared Channel (PUSCH), PRACH, Demodulation Reference Signal (DM-RS), Phase Tracking Reference Signal (PT-RS), Sounding Reference Signal (SRS), CSI-RS. Downlink transmission refers to the transmission of downlink signals or channels, and the downlink signals or channels include but are not limited to PDSCH, PBCH, PDCCH, DM-RS, PT-RS, Positioning Reference Signal (PRS), CSI-RS, Primary Synchronization Signal (PSS), and Secondary Synchronization Signal (SSS).

[0280] It should be noted that, for each frequency range or each service cell group of IAB-MT, the power control parameter can be obtained respectively, so the above method can be used to determine the uplink transmission power of the first unit for each frequency range. Similarly, the above method can be used to determine the uplink transmission power of the first unit for each service cell group.

[0281] In the above embodiments or examples, the first unit may also be other devices or functional units, such as a relay node, a terminal functional unit of a relay node, TRP, AP, etc.; the IAB-DU may also be other devices or functional units, such as a relay node, a base station functional unit of a relay node, TRP, AP, etc.

[0282] In the above embodiments, when the IAB node exchanges information with other nodes, it does not strictly distinguish whether it is the IAB-MT or the IAB-DU that exchanges information with other nodes. It can be seen from the signaling used for information exchange whether the IAB node refers to the IAB-MT or the IAB-DU, and whether the other nodes refer to the CU or the DU of the parent node of the IAB node or the service cell of the IAB-MT. Generally speaking, RRC signaling or MAC CE or physical layer information refers to the signaling between the IAB-MT and the DU of the parent node of the IAB node, or the information between the IAB-MT and the service cell of the IAB-MT; F1AP signaling refers to the signaling between the IAB-DU and the CU.

[0283] The embodiment of the present application also provides an information sending method, which is applied to a second communication node, and the second communication node is, for example, a donor IAB node, a relay node, a TRP, etc. The second communication node configures an association between a time domain resource group and a power control parameter set for the first communication node, so that the first communication node determines the power of the uplink transmission of the first unit.

[0284] It should be noted that, in this embodiment, the operations performed by the second communication node correspond to the relevant operations of the first communication node in the above embodiment to determine the transmission power of the uplink transmission according to the time domain resource group. For technical details not described in detail in this embodiment, please refer to any of the above embodiments.

[0285] Figure 8 A flowchart of a method for sending information provided by an embodiment, such as Figure 8 As shown, the method provided in this embodiment includes step 310 and step 320.

[0286] In step 310, the association between the time domain resource group and the power control parameter set is determined, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node.

[0287] In step 320, configuration information is sent, the configuration information including the association between the time domain resource group and the power control parameter set, the configuration information is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0288] In this embodiment, the second communication node configures an association between a time domain resource group and a power control parameter set for the first communication node, so that the first communication node can determine the power of the uplink transmission of the first unit. When the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit can be guaranteed, and the flexibility and reliability of power control are improved.

[0289] In one embodiment, the association between the time domain resource group and the power control parameter set includes at least one of the following: the time domain resource group identifier is associated with the power control parameter set configuration, the time domain resource group identifier is associated with the first power control parameter configuration, the time domain resource group identifier is associated with the second power control parameter configuration, the time domain resource group identifier is associated with the power control parameter set identifier, the time domain resource group identifier is associated with the first power control parameter identifier, and the time domain resource group identifier is associated with the second power control parameter identifier.

[0290] In one embodiment, the configuration information further includes at least one of the following:

[0291] Time domain resource configuration, used to determine specific rules for time domain resource groups, timing mode indication, timing mode configuration, correspondence between time domain resource types and time domain resource groups, correspondence between transmission types and time domain resource groups, and power control parameter set configuration.

[0292] In one embodiment, the specific rule for determining the time domain resource group includes one of the following:

[0293] The time domain resource group is determined according to the time domain resource configuration;

[0294] The time domain resource group is determined according to the timing mode adopted by the time domain resources;

[0295] The time domain resource group is determined according to the correspondence between the time domain resource type and the time domain resource group;

[0296] The time domain resource group is determined according to the correspondence between the transmission type and the time domain resource group;

[0297] Time units with the same result of modulo operation of time unit numbers with respect to N constitute a time domain resource group;

[0298] The time units whose result of modulo operation of the time unit number to N belongs to the same subset constitute a time domain resource group, wherein the subset is a subset of the set constituted by the result of modulo operation of the time unit number to N, and the intersection of any two subsets is an empty set;

[0299] The time domain resources within the effective time of the timing mode associated with the same power control parameter set constitute a time domain resource group;

[0300] The time domain resources corresponding to the timing mode associated with the same power control parameter set are a time domain resource group, wherein the time domain resources corresponding to the timing mode include the time domain resources using the timing mode determined according to the timing mode configuration;

[0301] The time domain resources corresponding to the groups of different time domain resource types belong to different time domain resource groups;

[0302] The time domain resources corresponding to packets of different transmission types belong to different time domain resource groups.

[0303] In one embodiment, the power control parameter set includes at least one of a first power control parameter and a second power control parameter; wherein the first power control parameter includes a transmission power upper limit associated with the first communication node. The second power control parameter includes at least one of the following: at least one open-loop power control parameter set, at least one reference signal resource information for path loss measurement, and a closed-loop power control parameter.

[0304] In one embodiment, the open-loop power control parameter set includes at least one of the following: an open-loop parameter set index, a target received power, a path loss compensation factor; and at least one reference signal resource information for path loss measurement.

[0305] In one embodiment, the reference signal resource information includes at least one of the following: a reference signal configuration index for measuring path loss, and a reference signal resource indication.

[0306] In one embodiment, the closed-loop power control parameter includes at least one of the following: the number of closed-loop power control states, and a closed-loop power control state identifier.

[0307] In one embodiment, the time domain resource configuration includes at least one of the following: a time domain resource group identifier, a configuration period, a starting time unit number or a time unit offset of a time unit within the period, a number of consecutive time units or a resource duration, a set of time unit numbers within the period, a starting and length indication value of a time domain resource within the period, and a reference subcarrier spacing.

[0308] In one embodiment, the time domain resource configuration includes at least one of the following: a configuration period, a list of time domain resource groups, a time domain resource group identifier or a list index, and a reference subcarrier spacing;

[0309] The list of time domain resource groups includes one of the following: a list of combinations of starting time unit numbers and the number of consecutive time units or resource durations of time units within a period, a list of combinations of time unit offsets and the number of consecutive time units or resource durations, and a list of sets of time unit numbers within a period;

[0310] Each element in the list of time domain resource groups corresponds to a time domain resource group.

[0311] In one embodiment, the time domain resource configuration includes: a parameter N of a modulo operation, a predetermined rule for determining a time domain resource group corresponding to the time unit according to a result of a modulo operation of the time unit number on N, and one or more subsets of a result of a modulo operation of the time unit number on N;

[0312] The time domain resource configuration is predefined or obtained through specific signaling, wherein the specific signaling includes at least one of the following: radio resource control RRC signaling, medium access control MAC control unit CE, physical layer signaling, and F1AP signaling.

[0313] In one embodiment, the timing mode configuration includes at least one of the following:

[0314] Configure the period and the time domain resource template corresponding to the timing mode within the period;

[0315] The time domain resource template includes one of the following:

[0316] Indicates the timing mode of each time unit within the cycle;

[0317] Indicates the index set of time units within the period corresponding to each timing mode;

[0318] Indicates the starting time unit index and the number of time units in the period corresponding to each timing mode;

[0319] Indicates the start and length indication values ​​of the time unit within the cycle corresponding to each timing mode;

[0320] Indicates the start time unit index and end time unit index within the period corresponding to each timing mode.

[0321] In one embodiment, the association relationship between the timing mode and the power control parameter set is predefined, or is indicated by the second communication node through specific signaling, or at least two association relationships between the timing modes and the power control parameter sets are predefined, and the second communication node indicates one of them through specific signaling, wherein the specific signaling includes at least one of the following: RRC signaling, MAC CE, physical layer signaling, F1AP signaling.

[0322] The embodiment of the present application also provides a parameter sending method, which is applied to a second communication node, and the second communication node is, for example, a donor IAB node, a relay node, a TRP, etc. The second communication node configures a power control parameter set for the first communication node, so that the first communication node determines the power of the uplink transmission of the first unit. It should be noted that in this embodiment, the operation performed by the second communication node corresponds to the relevant operation of the first communication node in the above embodiment according to determining the transmission power of the uplink transmission. For technical details not described in detail in this embodiment, refer to any of the above embodiments.

[0323] Fig. 9 A flow chart of a parameter sending method provided by an embodiment, such as Fig. 9 As shown, the method provided in this embodiment includes step 410 and step 420.

[0324] In step 410, a power control parameter set is determined, wherein the power control parameter set includes a transmission power upper limit associated with a first communication node.

[0325] In step 420, a power control parameter set is sent, where the power control parameter set is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0326] In this embodiment, the second communication node configures a power control parameter set for the first communication node so that the first communication node can determine the power of the uplink transmission of the first unit. When the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit can be guaranteed, and the flexibility and reliability of power control are improved.

[0327] In one embodiment, the power control parameter set includes at least one of the following: a transmit power upper limit of the first unit, a transmit power upper limit of a serving cell group of the first unit, a transmit power upper limit of the second unit, and a transmit power upper limit of the first communication node;

[0328] In one embodiment, the transmission power upper limit of the first communication node is determined according to the type of the first communication node, or is indicated by an upper node of the first communication node, or is determined according to a maximum output power range of the first communication node predefined by a protocol.

[0329] The embodiment of the present application also provides a power determination device. Fig.10 FIG. 1 is a schematic diagram of a power determination device provided by an embodiment. Fig.10 As shown, the power determination device includes: a resource group determination module 11 and a power determination module 12.

[0330] A resource group determination module 11 is configured to determine a time domain resource group, each time domain resource group being associated with a power control parameter set, the power control parameter set being used to limit a transmit power of an uplink transmission of a first unit of a first communication node;

[0331] The power determination module 12 is configured to determine the transmission power of the uplink transmission of the first unit according to the time domain resource group.

[0332] The power determination device of this embodiment can determine, for the uplink transmission of the first unit, whether and how to limit the power of the uplink transmission according to the limitation of the power control parameter set by analyzing the time domain resource group. When the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit can be guaranteed in the case of multiplexing, and the flexibility and reliability of power control are also improved.

[0333] In one embodiment, the time domain resource group is determined according to at least one of the following: time domain resource configuration, a timing mode adopted by the time domain resource, a time domain resource type, and a transmission type.

[0334] In one embodiment, the power control parameter set includes at least one of a first power control parameter and a second power control parameter; wherein the first power control parameter includes a transmission power upper limit associated with the first communication node;

[0335] The second power control parameter includes at least one of the following:

[0336] at least one set of open-loop power control parameters;

[0337] At least one reference signal resource information for path loss measurement;

[0338] Closed loop power control parameters.

[0339] In one embodiment, the open-loop power control parameter set includes at least one of the following: an open-loop parameter set index, a target received power, and a path loss compensation factor.

[0340] In one embodiment, the reference signal resource information includes at least one of the following: a reference signal configuration index for measuring path loss, and a reference signal resource indication.

[0341] In one embodiment, the closed-loop power control parameter includes at least one of the following: the number of closed-loop power control states, and a closed-loop power control state identifier.

[0342] In one embodiment, the resource group determination module 11 is configured as follows:

[0343] For each frequency range or each serving cell group, determining at least one time domain resource group;

[0344] The determining, according to the time domain resource group, the transmit power of the uplink transmission of the first unit includes:

[0345] For each frequency range or each serving cell group, the transmit power of the uplink transmission of the first unit is determined according to the corresponding time domain resource group.

[0346] In one embodiment, the power determination module 12 is configured to be at least one of the following:

[0347] In a case where uplink transmission of a serving cell or a serving cell group of the first unit overlaps with resources corresponding to a time domain resource group in the time domain, determining the transmit power of the uplink transmission according to a power control parameter set associated with the time domain resource group;

[0348] In a case where an uplink transmission of a serving cell or a serving cell group of the first unit overlaps with resources corresponding to at least two time domain resource groups in the time domain, determining a transmit power of the uplink transmission according to a power control parameter set associated with a target time domain resource group in the at least two time domain resource groups, or determining the transmit power of the uplink transmission according to a default power control parameter set, or determining the transmit power of the uplink transmission, and the transmit power of the uplink transmission is independent of the power control parameter set;

[0349] In a case where an uplink transmission of a serving cell or a serving cell group of the first unit does not overlap with resources corresponding to any time domain resource group in the time domain, determining a transmit power of the uplink transmission according to a default power control parameter set, or determining a transmit power of the uplink transmission, the transmit power of the uplink transmission being independent of the power control parameter set;

[0350] In the case where the uplink transmission of the serving cell or the serving cell group of the first unit is multi-time slot scheduling, for a time slot in which the uplink transmission does not overlap with any time domain resource group, determining the transmit power of the uplink transmission in the time slot, the transmit power of the uplink transmission in the time slot being independent of the power control parameter set, or determining the transmit power of the uplink transmission in the time slot, the transmit power of the uplink transmission in the time slot being independent of the transmit power of the downlink transmission of the second unit;

[0351] In the case where the uplink transmission of the serving cell or serving cell group of the first unit is multi-slot scheduled, for a time slot in which the uplink transmission overlaps with a time domain resource group, determining the transmit power of the uplink transmission in the time slot according to a power control parameter set associated with the time domain resource group;

[0352] In the case where the uplink transmission of the service cell or service cell group of the first unit is multi-time slot scheduling, for the time slot in which the uplink transmission overlaps with at least two time domain resource groups, the transmit power of the uplink transmission in the time slot is determined according to a power control parameter set associated with a target time domain resource group in the at least two time domain resource groups, or the transmit power of the uplink transmission in the time slot is determined according to a default power control parameter set, or the transmit power of the uplink transmission in the time slot is determined, and the transmit power of the uplink transmission in the time slot is independent of the power control parameter set.

[0353] In one embodiment, the time domain resource group is determined according to a time domain resource configuration;

[0354] The time domain resource configuration includes at least one of the following: a time domain resource group identifier, a configuration period, a starting time unit number or a time unit offset of a time unit within the period, a number of consecutive time units or a resource duration, a set of time unit numbers within the period, a starting and length indication value of a time domain resource within the period, and a reference subcarrier spacing.

[0355] In one embodiment, the time domain resource group is determined according to a time domain resource configuration;

[0356] The time domain resource configuration includes at least one of the following: a configuration period, a list of time domain resource groups, a time domain resource group identifier or a list index, and a reference subcarrier spacing;

[0357] The list of time domain resource groups includes one of the following: a list of combinations of starting time unit numbers and the number of consecutive time units or resource durations of time units within a period, a list of combinations of time unit offsets and the number of consecutive time units or resource durations, and a list of sets of time unit numbers within a period;

[0358] Each element in the list of time domain resource groups corresponds to a time domain resource group.

[0359] In one embodiment, the time domain resource group is determined according to a time domain resource configuration;

[0360] The time domain resource configuration includes: a parameter N of a modulo operation, a predetermined rule for determining a time domain resource group corresponding to the time unit according to a result of a modulo operation of the time unit number on N, and one or more subsets of a result of a modulo operation of the time unit number on N;

[0361] The time domain resource configuration is predefined or obtained through specific signaling, wherein the specific signaling includes at least one of the following: radio resource control RRC signaling, medium access control MAC control unit CE, physical layer signaling, and F1AP signaling.

[0362] In one embodiment, the time domain resource group is determined according to a timing mode adopted by the time domain resources;

[0363] The time domain resources within the effective time of the timing mode associated with the same power control parameter set constitute a time domain resource group, or the time domain resources corresponding to the timing mode associated with the same power control parameter set are a time domain resource group, wherein the time domain resources corresponding to the timing mode include the time domain resources using the timing mode determined according to the timing mode configuration;

[0364] The association relationship between the timing mode and the power control parameter set includes one of the following:

[0365] The timing modes include M, where M is a positive integer, and each timing mode is associated with a power control parameter set;

[0366] The timing modes include co-transmission timing modes and non-co-transmission timing modes, each timing mode being associated with a power control parameter set;

[0367] The timing modes include co-receiving timing modes and non-co-receiving timing modes, each timing mode being associated with a power control parameter set;

[0368] The timing modes include a co-transmitting timing mode, a co-receiving timing mode and other timing modes, each timing mode being associated with a power control parameter set;

[0369] The timing mode includes a co-transmission timing mode, a co-reception timing mode and other timing modes, the co-transmission timing mode is associated with a power control parameter set, and the co-reception timing mode and the other timing modes are associated with a power control parameter set.

[0370] In one embodiment, the timing mode configuration includes at least one of the following:

[0371] Configure the period and the time domain resource template corresponding to the timing mode within the period;

[0372] The time domain resource template includes one of the following:

[0373] Indicates the timing mode of each time unit within the cycle;

[0374] Indicates the index set of time units within the period corresponding to each timing mode;

[0375] Indicates the starting time unit index and the number of time units in the period corresponding to each timing mode;

[0376] Indicates the start and length indication values ​​of the time unit within the cycle corresponding to each timing mode;

[0377] Indicates the start time unit index and end time unit index within the period corresponding to each timing mode.

[0378] In one embodiment, the association relationship between the timing mode and the power control parameter set is predefined, or is indicated by the second communication node through specific signaling, or several association relationships between the timing modes and the power control parameter sets are predefined, and the second communication node indicates one of them through specific signaling, wherein the specific signaling includes at least one of the following: RRC signaling, MAC CE, physical layer signaling, F1AP signaling.

[0379] In one embodiment, the time domain resource group is determined according to one of the following: a time domain resource type, a transmission type;

[0380] The determining of the time domain resource group includes one of the following:

[0381] The time domain resources are grouped according to the time domain resource types, and the time domain resources corresponding to the groups of different time domain resource types belong to different time domain resource groups;

[0382] The time domain resources are grouped according to the transmission type, and the time domain resources corresponding to the groups of different transmission types belong to different time domain resource groups.

[0383] In one embodiment, the power control parameter set includes a first power control parameter and a second power control parameter;

[0384] The power determination module 12 is configured to be at least one of the following:

[0385] In a case where uplink transmission of a serving cell or serving cell group of the first unit overlaps with resources corresponding to a time domain resource group in the time domain, determining the transmit power of the uplink transmission according to a second power control parameter associated with the time domain resource group under the condition that a first power control parameter restriction associated with the time domain resource group is satisfied;

[0386] In a case where the uplink transmission of the service cell or service cell group of the first unit overlaps with resources corresponding to at least two time domain resource groups in the time domain, under the condition that a first power control parameter restriction associated with a target time domain resource group in the at least two time domain resource groups is satisfied, the transmit power of the uplink transmission is determined according to a second power control parameter associated with the target time domain resource group, or, under the condition that a default first power control parameter restriction is satisfied, the transmit power of the uplink transmission is determined according to a default second power control parameter, or, the transmit power of the uplink transmission is determined, and the transmit power of the uplink transmission is independent of the first power control parameter and the second power control parameter;

[0387] In a case where the uplink transmission of the serving cell or serving cell group of the first unit does not overlap with the resources corresponding to any time domain resource group in the time domain, under the condition that the default first power control parameter restriction is met, the transmit power of the uplink transmission is determined according to the default second power control parameter, or, without considering the first power control parameter, the transmit power of the uplink transmission is determined according to the default second power control parameter, or the transmit power of the uplink transmission is determined, and the transmit power of the uplink transmission is independent of the power control parameter set;

[0388] In the case where the uplink transmission of the serving cell or the serving cell group of the first unit is multi-time slot scheduling, for a time slot in which the uplink transmission does not overlap with any time domain resource group, determining the transmit power of the uplink transmission in the time slot, the transmit power of the uplink transmission in the time slot being independent of the power control parameter set, or, under the condition that a default first power control parameter restriction is satisfied, determining the transmit power of the uplink transmission in the time slot according to a default second power control parameter;

[0389] In the case where the uplink transmission of the serving cell or serving cell group of the first unit is multi-slot scheduling, for a time slot where the uplink transmission overlaps with a time domain resource group, under the condition that a first power control parameter restriction associated with the time domain resource group is satisfied, determining the transmit power of the uplink transmission in the time slot according to a second power control parameter associated with the time domain resource group;

[0390] In the case where the uplink transmission of the service cell or service cell group of the first unit is multi-time slot scheduling, for the time slot in which the uplink transmission overlaps with at least two time domain resource groups, under the condition that the first power control parameter restriction associated with the target time domain resource group in the at least two time domain resource groups is satisfied, the transmit power of the uplink transmission in the time slot is determined according to the second power control parameter associated with the target time domain resource group; or, under the condition that the default first power control parameter restriction is satisfied, the transmit power of the uplink transmission in the time slot is determined according to the default second power control parameter; or, the transmit power of the uplink transmission in the time slot is determined, and the transmit power of the uplink transmission in the time slot is independent of the power control parameter set.

[0391] In one embodiment, the target time domain resource group in the at least two time domain resource groups includes one of the following:

[0392] The earliest time domain resource group among at least two time domain resource groups overlapping with uplink transmission;

[0393] The latest time domain resource group among at least two time domain resource groups overlapping with uplink transmission;

[0394] The time domain resource group with the smallest value of the upper limit parameter of the same type of transmission power among at least two time domain resource groups that overlap with the uplink transmission;

[0395] The time domain resource group with the largest value of the upper limit parameter of the same type of transmission power among at least two time domain resource groups that overlap with the uplink transmission;

[0396] The time domain resource group having the smallest average value of at least one type of transmission power upper limit parameter among at least two time domain resource groups overlapping with uplink transmission;

[0397] A time domain resource group having the largest average value of at least one type of transmission power upper limit parameter among at least two time domain resource groups overlapping with uplink transmission;

[0398] A time domain resource group determined by the first communication node or the first unit.

[0399] The power determination device proposed in this embodiment and the power determination method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effect as executing the power determination method.

[0400] The embodiment of the present application also provides a power determination device. Fig.11 FIG. 1 is a schematic diagram of a power determination device provided in another embodiment. Fig.11 As shown, the power determination device includes: a parameter determination module 21 and a power determination module 22.

[0401] A parameter determination module 21 is configured to determine a power control parameter set, wherein the power control parameter set includes a transmission power upper limit related to the first communication node;

[0402] The power determination module 22 is configured to determine the transmit power of the uplink transmission of the first unit according to the power control parameter set.

[0403] In the power determination device of this embodiment, for the uplink transmission of the first unit, the first communication node limits the power of the uplink transmission according to the power control parameter set. When the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit can be guaranteed in the case of multiplexing, and the flexibility and reliability of power control are also improved.

[0404] In one embodiment, the parameter determination module 21 is configured as follows:

[0405] For each frequency range or each serving cell group, determining a power control parameter set;

[0406] The determining, according to the power control parameter set, the transmit power of the uplink transmission of the first unit includes:

[0407] For each frequency range or each serving cell group, the transmit power of the uplink transmission of the first unit is determined according to the corresponding power control parameter set.

[0408] In one embodiment, the power control parameter set includes at least one of the following: a transmit power upper limit of the first unit, a transmit power upper limit of the second unit, and a transmit power upper limit of the first communication node;

[0409] In one embodiment, the power determination module 22 is configured to be at least one of the following:

[0410] In a case where an uplink transmission in a time domain resource i of the first unit overlaps with a downlink symbol or a flexible symbol of a second unit in the time domain, determining a transmit power of the uplink transmission in the time domain resource i, the transmit power being less than or equal to a first target value;

[0411] In a case where the uplink transmission of the first unit overlapping with the time domain resource i overlaps with the downlink symbol or the flexible symbol of the second unit in the time domain, determining the transmit power of the uplink transmission in the time domain resource i, the transmit power being less than or equal to the first target value;

[0412] The first target value is one of the following: the transmission power upper limit of the first unit, the difference between the transmission power upper limit of the first communication node and the transmission power upper limit of the second unit, and the minimum value between the transmission power upper limit of the first unit and the difference.

[0413] In one embodiment, the downlink symbol or flexible symbol of the second unit includes one of the following:

[0414] a downlink symbol or a flexible symbol configured by the centralized unit for the second unit;

[0415] The centralized unit configures the hard downlink symbol time domain resources or the flexible symbol time domain resources for the second unit;

[0416] A downlink symbol or a flexible symbol configured by the serving cell of the second unit through RRC signaling;

[0417] The downlink symbol or flexible symbol configured by the serving cell of the second unit.

[0418] In one embodiment, the upper limit of the transmission power of the first unit is determined by one of the following methods:

[0419] Indicated by an upper node of the first communication node, wherein the upper node is a parent node or a centralized unit of the first communication node;

[0420] The upper node of the first communication node indicates a ratio of the transmit power upper limit of the first unit to the transmit power upper limit of the first communication node, and the transmit power upper limit of the first unit is determined according to the ratio and the transmit power upper limit of the first communication node;

[0421] The upper node of the first communication node indicates an offset of the transmit power upper limit of the first unit relative to the transmit power upper limit of the first communication node, and the transmit power upper limit of the first unit is determined according to the offset and the transmit power upper limit of the first communication node;

[0422] The transmission power upper limit of the first unit is determined according to the maximum output power range of the first unit or the terminal predefined in the protocol.

[0423] In one embodiment, the upper limit of the transmission power of the second unit is determined by one of the following methods:

[0424] Indicated by an upper node of the first communication node, wherein the upper node is a parent node or a centralized unit of the first communication node;

[0425] The upper node of the first communication node indicates a ratio of the transmission power upper limit of the second unit to the transmission power upper limit of the first communication node, and the transmission power upper limit of the second unit is determined according to the ratio and the transmission power upper limit of the first communication node;

[0426] The upper node of the first communication node indicates an offset of the transmit power upper limit of the second unit relative to the transmit power upper limit of the first communication node, and the transmit power upper limit of the second unit is determined according to the offset and the transmit power upper limit of the first communication node; or,

[0427] The upper limit of the transmission power of the second unit is determined according to the maximum output power range of the second unit or the base station predefined in the protocol.

[0428] In one embodiment, the transmission power upper limit of the first communication node is determined according to the type of the first communication node, or is indicated by an upper node of the first communication node, or is determined according to a maximum output power range of the first communication node predefined by a protocol.

[0429] In one embodiment, the power determination module 22 is configured to be at least one of the following:

[0430] In a case where an uplink transmission in a time domain resource i of the first unit overlaps with a downlink transmission in a time domain resource j of the second unit in the time domain, determining a transmit power of an uplink transmission in a time domain resource i of the first unit, the transmit power being less than or equal to a second target value; or

[0431] In a case where there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission in the time domain resource i of the first unit, determining the transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to the third target value;

[0432] In a case where an uplink transmission in a time domain resource i of a first unit overlaps with a downlink transmission in a time domain resource j of a second unit in a time domain, and there is no uplink transmission having a priority value or an index greater than or equal to a first threshold in the uplink transmission in the time domain resource i of the first unit, determining a transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to a second target value;

[0433] In a case where the uplink transmission of the first unit overlapping with the time domain resource i overlaps with the downlink transmission in the time domain resource j of the second unit in the time domain, determining the transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to the second target value;

[0434] In the case where there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission of the first unit overlapping with the time domain resource i, determining the transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to the third target value;

[0435] In a case where the uplink transmission of the first unit overlapping with the time domain resource i overlaps with the downlink transmission in the time domain resource j of the second unit in the time domain, and there is no uplink transmission having a priority value or an index greater than or equal to a first threshold in the uplink transmission of the first unit overlapping with the time domain resource i, determining the transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to a second target value;

[0436] The second target value is one of the following: the transmit power upper limit of the first unit, the difference between the transmit power upper limit of the first communication node and the transmit power upper limit of the second unit, the minimum value of the transmit power upper limit of the first unit and the difference, and the difference between the transmit power upper limit of the first communication node and the total power of downlink transmission in the time domain resource j of the second unit;

[0437] The third target value is one of the following: the transmission power upper limit of the first unit, the difference between the transmission power upper limit of the first communication node and the transmission power upper limit of the second unit, and the minimum value of the transmission power upper limit of the first unit and the difference.

[0438] The power determination device proposed in this embodiment and the power determination method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effect as executing the power determination method.

[0439] The embodiment of the present application also provides an information sending device. Fig.12 FIG. 1 is a schematic diagram of a structure of an information sending device provided by an embodiment. Fig.12 As shown, the information sending device includes: an association determination module 210 and an information sending module 220.

[0440] An association determination module 31 is configured to determine an association between a time domain resource group and a power control parameter set, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node;

[0441] The information sending module 32 is configured to send configuration information, wherein the configuration information includes an association between the time domain resource group and the power control parameter set, and the configuration information is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0442] The information sending device of this embodiment configures an association between a time domain resource group and a power control parameter set for the first communication node, so that the first communication node can determine the power of the uplink transmission of the first unit. When the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit can be guaranteed, and the flexibility and reliability of power control are improved.

[0443] In one embodiment, the configuration information further includes at least one of the following:

[0444] Time domain resource configuration, used to determine specific rules for time domain resource groups, timing mode indication, timing mode configuration, correspondence between time domain resource types and time domain resource groups, correspondence between transmission types and time domain resource groups, and power control parameter set configuration.

[0445] In one embodiment, the specific rule for determining the time domain resource group includes one of the following:

[0446] The time domain resource group is determined according to the time domain resource configuration;

[0447] The time domain resource group is determined according to the timing mode adopted by the time domain resources;

[0448] The time domain resource group is determined according to the correspondence between the time domain resource type and the time domain resource group;

[0449] The time domain resource group is determined according to the correspondence between the transmission type and the time domain resource group;

[0450] Time units with the same result of modulo operation of time unit numbers with respect to N constitute a time domain resource group;

[0451] The time units whose result of modulo operation of the time unit number to N belongs to the same subset constitute a time domain resource group, wherein the subset is a subset of the set constituted by the result of modulo operation of the time unit number to N, and the intersection of any two subsets is an empty set;

[0452] The time domain resources within the effective time of the timing mode associated with the same power control parameter set constitute a time domain resource group;

[0453] The time domain resources corresponding to the timing mode associated with the same power control parameter set are a time domain resource group, wherein the time domain resources corresponding to the timing mode include the time domain resources using the timing mode determined according to the timing mode configuration;

[0454] The time domain resources corresponding to the groups of different time domain resource types belong to different time domain resource groups;

[0455] The time domain resources corresponding to packets of different transmission types belong to different time domain resource groups.

[0456] The information sending device proposed in this embodiment and the information sending method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as the information sending method.

[0457] The embodiment of the present application also provides a parameter sending device. Fig.13 FIG. 1 is a schematic diagram of a parameter sending device provided by an embodiment. Fig.13 As shown, the parameter sending device includes: a parameter determination module 41 and a parameter sending module 42.

[0458] A parameter determination module 41 is configured to determine a power control parameter set, wherein the power control parameter set includes a transmission power upper limit related to the first communication node;

[0459] The parameter sending module 42 is configured to send a power control parameter set, where the power control parameter set is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0460] The parameter sending device of this embodiment configures a power control parameter set for the first communication node so that the first communication node can determine the power of the uplink transmission of the first unit. When the total power of the first communication node is limited, the communication performance of the uplink transmission of the first unit and the downlink transmission of the second unit can be guaranteed, and the flexibility and reliability of power control can be improved.

[0461] The parameter sending device proposed in this embodiment and the parameter sending method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as the parameter sending method.

[0462] The embodiment of the present application also provides a first communication node. The power determination method can be performed by a power determination device, which can be implemented by software and / or hardware and integrated in the first communication node. The first communication node includes but is not limited to an IAB node, a relay node, an IAB-MT, an IAB-DU, a TRP, an AP, and a base station (gNB).

[0463] Fig.14 FIG. 1 is a schematic diagram of a hardware structure of a first communication node provided by an embodiment. Fig.14 As shown, a first communication node provided in this embodiment includes: a processor 510 and a storage device 520. The processor in the first communication node may be one or more, Fig.14 Taking a processor 510 as an example, the processor 510 and the storage device 520 in the device may be connected via a bus or other means. Fig.14 The example of connecting through bus is taken in the following.

[0464] The one or more programs are executed by the one or more processors 510, so that the one or more processors implement the power determination method described in any of the above embodiments.

[0465] The storage device 520 in the first communication node is a computer-readable storage medium, which can be used to store one or more programs, and the program can be a software program, a computer executable program, and a module, such as the program instructions / modules corresponding to the power determination method in the embodiment of the present invention (for example, the attached Fig.10 The modules in the power determination device shown include: a resource group determination module 11 and a power determination module 12). The processor 510 executes various functional applications and data processing of the first communication node by running the software programs, instructions and modules stored in the storage device 520, that is, implements the power determination method in the above method embodiment.

[0466] The storage device 520 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and an application required for at least one function; the data storage area can store data created according to the use of the device, etc. (such as the power control parameter set in the above embodiment, the transmission power of the uplink transmission, etc.). In addition, the storage device 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 520 may further include a memory remotely arranged relative to the processor 510, and these remote memories may be connected to the first communication node via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0467] Moreover, when one or more programs included in the above-mentioned first communication node are executed by the one or more processors 510, the following operations are implemented: determining a time domain resource group, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node; determining the transmission power of the uplink transmission of the first unit according to the time domain resource group.

[0468] Alternatively, when one or more programs included in the above-mentioned first communication node are executed by the one or more processors 510, the following operations are implemented: determining a power control parameter set, wherein the power control parameter set includes a transmission power upper limit related to the first communication node; determining the transmission power of the uplink transmission of the first unit according to the power control parameter set.

[0469] The first communication node proposed in this embodiment and the power determination method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effect as executing the power determination method.

[0470] The embodiment of the present application also provides a second communication node. The above-mentioned information sending method can be performed by an information sending device, which can be implemented by software and / or hardware and integrated in the second communication node. The above-mentioned parameter sending method can be performed by a parameter sending device, which can be implemented by software and / or hardware and integrated in the second communication node. The second communication node is, for example, a donor IAB node, an IAB node, an IAB-MT, an IAB-DU, a base station (gNB, eNB, ng-eNB, en-gNB), a relay node, a TRP, an AP, a CU, etc.

[0471] Fig.15FIG. 1 is a schematic diagram of a hardware structure of a second communication node provided by an embodiment. Fig.15 As shown, a second communication node provided in this embodiment includes: a processor 610 and a storage device 620. The processor in the second communication node may be one or more, Fig.15 Taking a processor 610 as an example, the processor 610 and the storage device 620 in the device may be connected via a bus or other means. Fig.15 The example of connecting through bus is taken in the following.

[0472] The one or more programs are executed by the one or more processors 610, so that the one or more processors implement the information sending method or parameter sending method described in any of the above embodiments.

[0473] The storage device 620 in the second communication node is a computer-readable storage medium, which can be used to store one or more programs, and the program can be a software program, a computer executable program, and a module, such as the program instructions / modules corresponding to the information sending method in the embodiment of the present invention (for example, the attached Fig.12 The modules in the information sending device shown include: an association determination module 31 and an information sending module 32). The processor 610 executes various functional applications and data processing of the second communication node by running the software programs, instructions and modules stored in the storage device 620, that is, the information sending method or parameter sending method in the above method embodiment is implemented.

[0474] The storage device 620 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and an application required for at least one function; the data storage area can store data created according to the use of the device, etc. (such as the configuration information in the above embodiment, the association between the time domain resource group and the power control parameter set, etc.). In addition, the storage device 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 620 may further include a memory remotely arranged relative to the processor 610, and these remote memories may be connected to the second communication node via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0475] Furthermore, when one or more programs included in the above-mentioned second communication node are executed by the one or more processors 610, the following operations are implemented: determining the association between the time domain resource group and the power control parameter set, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node; sending configuration information, the configuration information includes the association between the time domain resource group and the power control parameter set, and the configuration information is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0476] Alternatively, when one or more programs included in the above-mentioned second communication node are executed by the one or more processors 610, the following operations are implemented: determining a power control parameter set, the power control parameter set including a transmission power upper limit related to the first communication node; sending a power control parameter set, the power control parameter set is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0477] The second communication node proposed in this embodiment and the information sending method or parameter sending method proposed in the above embodiment belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the information sending method or parameter sending method.

[0478] An embodiment of the present application also provides a storage medium containing computer executable instructions, which are used to execute a power determination method, an information sending method, or a parameter sending method when executed by a computer processor.

[0479] Among them, the power determination method includes: determining a time domain resource group, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node; determining the transmission power of the uplink transmission of the first unit according to the time domain resource group.

[0480] Alternatively, the power determination method includes: determining a power control parameter set, wherein the power control parameter set includes a transmission power upper limit related to the first communication node; and determining the transmission power of the uplink transmission of the first unit according to the power control parameter set.

[0481] The information sending method includes: determining an association between a time domain resource group and a power control parameter set, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node; sending configuration information, the configuration information includes the association between the time domain resource group and the power control parameter set, and the configuration information is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0482] The parameter sending method includes: determining a power control parameter set, the power control parameter set including a transmission power upper limit related to a first communication node; sending a power control parameter set, the power control parameter set is used by the first communication node to determine the transmission power of the uplink transmission of the first unit.

[0483] Through the above description of the implementation method, the technical personnel in the relevant field can understand that the present application can be implemented by means of software and general hardware, or by hardware. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including multiple instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the method described in any embodiment of the present application.

[0484] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0485] The block diagram of any logic flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logic circuits, modules and functions, or can represent a combination of program steps and logic circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD disc), etc. Computer-readable media may include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FGPA) and a processor based on a multi-core processor architecture.

[0486] By way of exemplary and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, but will not depart from the scope of the present invention. Therefore, the proper scope of the present invention will be determined according to the claims.

Claims

1. A method for determining power, characterized in that: Applied to a first communication node, comprising: Determine a time domain resource group, each time domain resource group is associated with a power control parameter set, the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node; Determine the transmit power of uplink transmission of the first unit according to the time domain resource group; The time domain resource group is determined according to at least one of the following: time domain resource configuration, a timing mode adopted by the time domain resource, a time domain resource type, and a type of transmission; The power control parameter set includes at least one of a first power control parameter and a second power control parameter; Wherein, the first power control parameter includes a transmission power upper limit related to the first communication node; The second power control parameter includes at least one of the following: at least one set of open-loop power control parameters; At least one reference signal resource information for path loss measurement; Closed loop power control parameters; Wherein, when the time domain resource group is determined according to the time domain resource type or the transmission type, the determining of the time domain resource group includes one of the following: The time domain resources are grouped according to the time domain resource types, and the time domain resources corresponding to the groups of different time domain resource types belong to different time domain resource groups; The time domain resources are grouped according to the transmission type, and the time domain resources corresponding to the groups of different transmission types belong to different time domain resource groups.

2. The method according to claim 1, characterized in that The determining of the time domain resource group includes: For each frequency range or each serving cell group, determining at least one time domain resource group; The determining, according to the time domain resource group, the transmit power of the uplink transmission of the first unit includes: For each frequency range or each serving cell group, the transmit power of the uplink transmission of the first unit is determined according to the corresponding time domain resource group.

3. The method according to claim 1, characterized in that The determining, according to the time domain resource group, the transmit power of the uplink transmission of the first unit includes at least one of the following: In a case where uplink transmission of a serving cell or a serving cell group of the first unit overlaps with resources corresponding to a time domain resource group in the time domain, determining the transmit power of the uplink transmission according to a power control parameter set associated with the time domain resource group; In a case where an uplink transmission of a serving cell or a serving cell group of the first unit overlaps with resources corresponding to at least two time domain resource groups in the time domain, determining a transmit power of the uplink transmission according to a power control parameter set associated with a target time domain resource group in the at least two time domain resource groups, or determining the transmit power of the uplink transmission according to a default power control parameter set, or determining the transmit power of the uplink transmission, and the transmit power of the uplink transmission is independent of the power control parameter set; In a case where an uplink transmission of a serving cell or a serving cell group of the first unit does not overlap with resources corresponding to any time domain resource group in the time domain, determining a transmit power of the uplink transmission according to a default power control parameter set, or determining a transmit power of the uplink transmission, the transmit power of the uplink transmission being independent of the power control parameter set; In the case where the uplink transmission of the serving cell or the serving cell group of the first unit is multi-time slot scheduling, for a time slot in which the uplink transmission does not overlap with any time domain resource group, determining the transmit power of the uplink transmission in the time slot, the transmit power of the uplink transmission in the time slot being independent of the power control parameter set, or determining the transmit power of the uplink transmission in the time slot, the transmit power of the uplink transmission in the time slot being independent of the transmit power of the downlink transmission of the second unit; In the case where the uplink transmission of the serving cell or serving cell group of the first unit is multi-slot scheduled, for a time slot in which the uplink transmission overlaps with a time domain resource group, determining the transmit power of the uplink transmission in the time slot according to a power control parameter set associated with the time domain resource group; In the case where the uplink transmission of the service cell or service cell group of the first unit is multi-time slot scheduling, for the time slot in which the uplink transmission overlaps with at least two time domain resource groups, the transmit power of the uplink transmission in the time slot is determined according to a power control parameter set associated with a target time domain resource group in the at least two time domain resource groups, or the transmit power of the uplink transmission in the time slot is determined according to a default power control parameter set, or the transmit power of the uplink transmission in the time slot is determined, and the transmit power of the uplink transmission in the time slot is independent of the power control parameter set.

4. The method according to claim 1, characterized in that: The time domain resource group is determined according to the timing mode adopted by the time domain resources; The time domain resources within the effective time of the timing mode associated with the same power control parameter set constitute a time domain resource group, or the time domain resources corresponding to the timing mode associated with the same power control parameter set are a time domain resource group, wherein the time domain resources corresponding to the timing mode include the time domain resources using the timing mode determined according to the timing mode configuration; The association relationship between the timing mode and the power control parameter set includes one of the following: The timing modes include M, where M is a positive integer, and each timing mode is associated with a power control parameter set; The timing modes include co-transmission timing modes and non-co-transmission timing modes, each timing mode being associated with a power control parameter set; The timing modes include co-receiving timing modes and non-co-receiving timing modes, each timing mode being associated with a power control parameter set; The timing modes include a co-transmitting timing mode, a co-receiving timing mode and other timing modes, each timing mode being associated with a power control parameter set; The timing mode includes a co-transmission timing mode, a co-reception timing mode and other timing modes, the co-transmission timing mode is associated with a power control parameter set, and the co-reception timing mode and the other timing modes are associated with a power control parameter set.

5. The method according to claim 4, characterized in that The timing mode configuration includes at least one of the following: Configure the period and the time domain resource template corresponding to the timing mode within the period; The time domain resource template includes one of the following: Indicates the timing mode of each time unit within the cycle; Indicates the index set of time units within the period corresponding to each timing mode; Indicates the starting time unit index and the number of time units in the period corresponding to each timing mode; Indicates the start and length indication values ​​of the time unit within the cycle corresponding to each timing mode; Indicates the start time unit index and end time unit index within the period corresponding to each timing mode.

6. The method according to claim 4, characterized in that The association relationship between the timing mode and the power control parameter set is predefined, or is indicated by the second communication node through specific signaling, or at least two association relationships between the timing modes and the power control parameter sets are predefined, and one of them is indicated by the second communication node through specific signaling, wherein the specific signaling includes at least one of the following: RRC signaling, MAC CE, physical layer signaling, F1AP signaling.

7. The method according to claim 1, characterized in that The power control parameter set includes a first power control parameter and a second power control parameter; The determining, according to the time domain resource group, the transmit power of the uplink transmission of the first unit includes at least one of the following: In a case where uplink transmission of a serving cell or serving cell group of the first unit overlaps with resources corresponding to a time domain resource group in the time domain, determining the transmit power of the uplink transmission according to a second power control parameter associated with the time domain resource group under the condition that a first power control parameter restriction associated with the time domain resource group is satisfied; In a case where the uplink transmission of the service cell or service cell group of the first unit overlaps with resources corresponding to at least two time domain resource groups in the time domain, under the condition that a first power control parameter restriction associated with a target time domain resource group in the at least two time domain resource groups is satisfied, the transmit power of the uplink transmission is determined according to a second power control parameter associated with the target time domain resource group, or, under the condition that a default first power control parameter restriction is satisfied, the transmit power of the uplink transmission is determined according to a default second power control parameter, or, the transmit power of the uplink transmission is determined, and the transmit power of the uplink transmission is independent of the first power control parameter and the second power control parameter; In a case where the uplink transmission of the serving cell or serving cell group of the first unit does not overlap with the resources corresponding to any time domain resource group in the time domain, under the condition that the default first power control parameter restriction is met, the transmit power of the uplink transmission is determined according to the default second power control parameter, or, without considering the first power control parameter, the transmit power of the uplink transmission is determined according to the default second power control parameter, or the transmit power of the uplink transmission is determined, and the transmit power of the uplink transmission is independent of the power control parameter set; In the case where the uplink transmission of the serving cell or the serving cell group of the first unit is multi-time slot scheduling, for a time slot in which the uplink transmission does not overlap with any time domain resource group, determining the transmit power of the uplink transmission in the time slot, the transmit power of the uplink transmission in the time slot being independent of the power control parameter set, or, under the condition that a default first power control parameter restriction is satisfied, determining the transmit power of the uplink transmission in the time slot according to a default second power control parameter; In the case where the uplink transmission of the serving cell or serving cell group of the first unit is multi-slot scheduling, for a time slot where the uplink transmission overlaps with a time domain resource group, under the condition that a first power control parameter restriction associated with the time domain resource group is satisfied, determining the transmit power of the uplink transmission in the time slot according to a second power control parameter associated with the time domain resource group; In the case where the uplink transmission of the service cell or service cell group of the first unit is multi-time slot scheduling, for the time slot in which the uplink transmission overlaps with at least two time domain resource groups, under the condition that the first power control parameter restriction associated with the target time domain resource group in the at least two time domain resource groups is satisfied, the transmit power of the uplink transmission in the time slot is determined according to the second power control parameter associated with the target time domain resource group; or, under the condition that the default first power control parameter restriction is satisfied, the transmit power of the uplink transmission in the time slot is determined according to the default second power control parameter; or, the transmit power of the uplink transmission in the time slot is determined, and the transmit power of the uplink transmission in the time slot is independent of the power control parameter set.

8. The method according to claim 3 or 7, characterized in that: The target time domain resource group in the at least two time domain resource groups includes one of the following: The earliest time domain resource group among at least two time domain resource groups overlapping with uplink transmission; The latest time domain resource group among at least two time domain resource groups overlapping with uplink transmission; The time domain resource group with the smallest value of the upper limit parameter of the same type of transmission power among at least two time domain resource groups that overlap with the uplink transmission; The time domain resource group with the largest value of the upper limit parameter of the same type of transmission power among at least two time domain resource groups that overlap with the uplink transmission; The time domain resource group having the smallest average value of at least one type of transmission power upper limit parameter among at least two time domain resource groups overlapping with uplink transmission; A time domain resource group having the largest average value of at least one type of transmission power upper limit parameter among at least two time domain resource groups overlapping with uplink transmission; A time domain resource group determined by the first communication node or the first unit.

9. A method for determining power, characterized in that: Applied to a first communication node, comprising: Determining a power control parameter set, the power control parameter set comprising a transmit power upper limit associated with the first communication node; Determining the transmit power of the uplink transmission of the first unit according to the power control parameter set; The power control parameter set includes at least one of a first power control parameter and a second power control parameter; Wherein, the first power control parameter includes a transmission power upper limit related to the first communication node; The second power control parameter includes at least one of the following: at least one set of open-loop power control parameters; At least one reference signal resource information for path loss measurement; Closed loop power control parameters; The transmission power upper limit of the first communication node is determined according to the type of the first communication node, or is indicated by an upper node of the first communication node, or is determined according to a maximum output power range of the first communication node predefined by a protocol.

10. The method according to claim 9, characterized in that The determining of a power control parameter set comprises: For each frequency range or each serving cell group, determining a power control parameter set; The determining, according to the power control parameter set, the transmit power of the uplink transmission of the first unit includes: For each frequency range or each serving cell group, the transmit power of the uplink transmission of the first unit is determined according to the corresponding power control parameter set.

11. The method according to claim 9, characterized in that The power control parameter set includes at least one of the following: a transmission power upper limit of the first unit, a transmission power upper limit of the second unit, and a transmission power upper limit of the first communication node.

12. The method according to claim 9, characterized in that Determining the transmit power of the uplink transmission of the first unit according to the power control parameter set includes at least one of the following: In a case where an uplink transmission in a time domain resource i of the first unit overlaps with a downlink symbol or a flexible symbol of a second unit in the time domain, determining a transmit power of the uplink transmission in the time domain resource i, the transmit power being less than or equal to a first target value; In a case where the uplink transmission of the first unit overlapping with the time domain resource i overlaps with the downlink symbol or the flexible symbol of the second unit in the time domain, determining the transmit power of the uplink transmission in the time domain resource i, the transmit power being less than or equal to the first target value; The first target value is one of the following: the transmission power upper limit of the first unit, the difference between the transmission power upper limit of the first communication node and the transmission power upper limit of the second unit, and the minimum value between the transmission power upper limit of the first unit and the difference.

13. The method according to claim 10, characterized in that The downlink symbol or flexible symbol of the second unit includes one of the following: a downlink symbol or a flexible symbol configured by the centralized unit for the second unit; The centralized unit configures the hard downlink symbol time domain resources or the flexible symbol time domain resources for the second unit; A downlink symbol or a flexible symbol configured by the serving cell of the second unit through RRC signaling; The downlink symbol or flexible symbol configured by the serving cell of the second unit.

14. The method according to claim 11, characterized in that The upper limit of the transmission power of the first unit is determined by one of the following methods: Indicated by an upper node of the first communication node, wherein the upper node is a parent node or a centralized unit of the first communication node; The upper node of the first communication node indicates a ratio of the transmit power upper limit of the first unit to the transmit power upper limit of the first communication node, and the transmit power upper limit of the first unit is determined according to the ratio and the transmit power upper limit of the first communication node; The upper node of the first communication node indicates an offset of the transmit power upper limit of the first unit relative to the transmit power upper limit of the first communication node, and the transmit power upper limit of the first unit is determined according to the offset and the transmit power upper limit of the first communication node; The transmission power upper limit of the first unit is determined according to the maximum output power range of the first unit or the terminal predefined in the protocol.

15. The method according to claim 11, characterized in that The upper limit of the transmit power of the second unit is determined by one of the following methods: Indicated by an upper node of the first communication node, wherein the upper node is a parent node or a centralized unit of the first communication node; The upper node of the first communication node indicates a ratio of the transmission power upper limit of the second unit to the transmission power upper limit of the first communication node, and the transmission power upper limit of the second unit is determined according to the ratio and the transmission power upper limit of the first communication node; The upper node of the first communication node indicates an offset of the transmit power upper limit of the second unit relative to the transmit power upper limit of the first communication node, and the transmit power upper limit of the second unit is determined according to the offset and the transmit power upper limit of the first communication node; or, The upper limit of the transmission power of the second unit is determined according to the maximum output power range of the second unit or the base station predefined in the protocol.

16. The method according to claim 9, characterized in that Determining the transmit power of the uplink transmission of the first unit according to the power control parameter set includes at least one of the following: In a case where an uplink transmission in a time domain resource i of the first unit overlaps with a downlink transmission in a time domain resource j of the second unit in the time domain, determining a transmit power of an uplink transmission in a time domain resource i of the first unit, the transmit power being less than or equal to a second target value; or In a case where there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission in the time domain resource i of the first unit, determining the transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to the third target value; In a case where an uplink transmission in a time domain resource i of a first unit overlaps with a downlink transmission in a time domain resource j of a second unit in a time domain, and there is no uplink transmission having a priority value or an index greater than or equal to a first threshold in the uplink transmission in the time domain resource i of the first unit, determining a transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to a second target value; In a case where the uplink transmission of the first unit overlapping with the time domain resource i overlaps with the downlink transmission in the time domain resource j of the second unit in the time domain, determining the transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to the second target value; In the case where there is no uplink transmission with a priority value or an index greater than or equal to the first threshold in the uplink transmission of the first unit overlapping with the time domain resource i, determining the transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to the third target value; In a case where the uplink transmission of the first unit overlapping with the time domain resource i overlaps with the downlink transmission in the time domain resource j of the second unit in the time domain, and there is no uplink transmission having a priority value or an index greater than or equal to a first threshold in the uplink transmission of the first unit overlapping with the time domain resource i, determining the transmit power of the uplink transmission in the time domain resource i of the first unit, the transmit power being less than or equal to a second target value; The second target value is one of the following: the transmit power upper limit of the first unit, the difference between the transmit power upper limit of the first communication node and the transmit power upper limit of the second unit, the minimum value of the transmit power upper limit of the first unit and the difference, and the difference between the transmit power upper limit of the first communication node and the total power of downlink transmission in the time domain resource j of the second unit; The third target value is one of the following: the transmission power upper limit of the first unit, the difference between the transmission power upper limit of the first communication node and the transmission power upper limit of the second unit, and the minimum value of the transmission power upper limit of the first unit and the difference.

17. A method for sending information, characterized in that: Applied to a second communication node, comprising: Determine an association between a time domain resource group and a power control parameter set, each time domain resource group is associated with a power control parameter set, and the power control parameter set is used to limit the transmission power of the uplink transmission of the first unit of the first communication node; Sending configuration information, the configuration information including an association between the time domain resource group and the power control parameter set, the configuration information being used by the first communication node to determine a transmit power for uplink transmission of the first unit; The time domain resource group is determined according to at least one of the following: time domain resource configuration, a timing mode adopted by the time domain resource, a time domain resource type, and a type of transmission; The power control parameter set includes at least one of a first power control parameter and a second power control parameter; Wherein, the first power control parameter includes a transmission power upper limit related to the first communication node; The second power control parameter includes at least one of the following: at least one set of open-loop power control parameters; At least one reference signal resource information for path loss measurement; Closed loop power control parameters; Wherein, when the time domain resource group is determined according to the time domain resource type or the transmission type, the determining of the time domain resource group includes one of the following: The time domain resources are grouped according to the time domain resource types, and the time domain resources corresponding to the groups of different time domain resource types belong to different time domain resource groups; The time domain resources are grouped according to the transmission type, and the time domain resources corresponding to the groups of different transmission types belong to different time domain resource groups.

18. The method according to claim 17, characterized in that The configuration information also includes at least one of the following: Time domain resource configuration, used to determine specific rules for time domain resource groups, timing mode indication, timing mode configuration, correspondence between time domain resource types and time domain resource groups, correspondence between transmission types and time domain resource groups, and power control parameter set configuration.

19. The method according to claim 18, characterized in that The specific rule for determining the time domain resource group includes one of the following: The time domain resource group is determined according to the time domain resource configuration; The time domain resource group is determined according to the timing mode adopted by the time domain resources; The time domain resource group is determined according to the correspondence between the time domain resource type and the time domain resource group; The time domain resource group is determined according to the correspondence between the transmission type and the time domain resource group; Time units with the same result of modulo operation of time unit numbers with respect to N constitute a time domain resource group; The time units whose result of modulo operation of the time unit number to N belongs to the same subset constitute a time domain resource group, wherein the subset is a subset of the set constituted by the result of modulo operation of the time unit number to N, and the intersection of any two subsets is an empty set; The time domain resources within the effective time of the timing mode associated with the same power control parameter set constitute a time domain resource group; The time domain resources corresponding to the timing mode associated with the same power control parameter set are a time domain resource group, wherein the time domain resources corresponding to the timing mode include the time domain resources using the timing mode determined according to the timing mode configuration; The time domain resources corresponding to the groups of different time domain resource types belong to different time domain resource groups; The time domain resources corresponding to packets of different transmission types belong to different time domain resource groups.

20. A parameter sending method, characterized in that: Applied to a second communication node, comprising: Determining a power control parameter set, the power control parameter set comprising a transmit power upper limit associated with the first communication node; A transmission power control parameter set, wherein the power control parameter set is used by the first communication node to determine the transmission power of the uplink transmission of the first unit; The power control parameter set includes at least one of a first power control parameter and a second power control parameter; Wherein, the first power control parameter includes a transmission power upper limit related to the first communication node; The second power control parameter includes at least one of the following: at least one set of open-loop power control parameters; At least one reference signal resource information for path loss measurement; Closed loop power control parameters; The transmission power upper limit of the first communication node is determined according to the type of the first communication node, or is indicated by an upper node of the first communication node, or is determined according to a maximum output power range of the first communication node predefined by a protocol.

21. A first communication node, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the power determination method as described in any one of claims 1-8 or the power determination method as described in any one of claims 9-16.

22. A second communication node, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the information sending method according to any one of claims 17 to 19 or the parameter sending method according to claim 20.

23. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, it implements the power determination method described in any one of 1-8, the power determination method described in any one of claims 9-16, the information sending method described in any one of claims 17-19, or the parameter sending method described in claim 20.

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