Method, device, and system for transmission power configuration in uplink transmission

Abstract

The present invention discloses a method, an apparatus, and a system for transmission power configuration in uplink transmission. In one embodiment, a method performed by a wireless communication device is disclosed. The method includes: determining a first maximum transmission power for a first uplink transmission in a first cell; determining a second maximum transmission power for a second uplink transmission in the first cell; and performing the first uplink transmission and the second uplink transmission based on at least one of the first maximum transmission power and the second maximum transmission power.

Description

Technical Field

[0001] The present invention generally relates to wireless communication, and more particularly to methods, devices, and systems for transmission power configuration in uplink transmission in wireless communication. Background Art

[0002] In a fifth-generation (5G) new radio (NR) network, carrier aggregation (CA) is proposed to achieve high reliability and high data rate. With CA, two or more component carriers (CCs) are aggregated to support a wider transmission bandwidth. In a dual connectivity (DC) or CA scenario, a terminal establishes a dual connection or a multi-connection with two or more cell groups (CGs). In this case, schedulers in different CGs may or may not interact in a timely manner. If the schedulers do not interact in a timely manner, the schedulers of different CGs will perform scheduling independently, such that the terminal may need to send uplink transmissions with time-domain resources that are fully or partially overlapped on multiple carriers of multiple CGs. If the schedulers can interact in a timely manner, the terminal can consider the transmission requirements of different CCs in different CGs and comprehensively determine the transmission power of each uplink transmission. For example, based on some priority rules, the terminal can first meet the power requirements of high-priority uplink transmissions and then apply the remaining power to meet the power requirements of low-priority uplink transmissions.

[0003] Existing NR protocols provide priority rules for different types of channels or signals on multiple CCs in a CG in a CA scenario. According to the first priority rule, when the transmission power of a terminal is limited, the terminal preferentially ensures the transmission power of high-priority channels or signals. According to the second priority rule, for a terminal with dynamic power sharing ability and limited transmission power in a CG scenario, an uplink transmission channel or signal transmitted on a master cell group (MCG) has a higher priority than an uplink transmission channel or signal transmitted on a secondary cell group (SCG). Therefore, the terminal should first allocate the transmission power to the uplink transmission channel or signal in the MCG. In some scenarios, if the terminal preferentially allocates power to the uplink transmission channel or signal in the MCG based on the second priority rule, the allocated power of high-priority channels or signals in the SCG cannot be guaranteed, which is inconsistent with the requirements of the first priority rule.

[0004] Therefore, the systems and methods for transmission power configuration in uplink transmission in wireless communication in the related art are not entirely satisfactory. Summary of the Invention

[0005] The exemplary embodiments disclosed in the present invention are directed to solving problems related to one or more problems raised in the related art, and when combined with the accompanying drawings, additional features that are easy to understand will be provided by referring to the following detailed description. According to various embodiments, the present invention discloses exemplary systems, methods, devices, and computer program products. However, it should be understood that these embodiments are given by way of example and not limitation, and it will be apparent to those of ordinary skill in the art who have read the content of the present invention that various modifications can be made to the disclosed embodiments while still remaining within the scope of the present invention.

[0006] In one embodiment, a method performed by a wireless communication device is disclosed. The method includes: determining a first maximum transmission power for a first uplink transmission in a first cell; determining a second maximum transmission power for a second uplink transmission in the first cell; and performing the first uplink transmission and the second uplink transmission based on at least one of the first maximum transmission power and the second maximum transmission power.

[0007] In another embodiment, a method performed by a wireless communication device is disclosed. The method includes: receiving first Downlink Control Information (DCI), where the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the wireless communication device; receiving second DCI, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group; and receiving third DCI, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the wireless communication device. Neither the first uplink transmission nor the second uplink transmission is scheduled on a time-domain transmission resource that overlaps with the time-domain transmission resource of the third uplink transmission, or both the first uplink transmission and the second uplink transmission are scheduled on a time-domain transmission resource that overlaps with the time-domain transmission resource of the third uplink transmission.

[0008] In another embodiment, a method performed by a wireless communication device is disclosed. The method includes: receiving first DCI, where the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the wireless communication device; receiving second DCI, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group; and receiving third DCI, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the wireless communication device. At least two of the first uplink transmission, the second uplink transmission, and the third uplink transmission are scheduled on non-overlapping time-domain transmission resources.

[0009] In yet another embodiment, a method performed by a wireless communication device is disclosed. The method includes: determining a maximum transmission power of an uplink transmission of the wireless communication device on a time unit, where the time unit is a time unit in a first cell group for dual-connection or multi-connection of the wireless communication device. The maximum transmission power is determined based on a semi-static frame structure configuration of a second cell group for dual-connection or multi-connection of the wireless communication device.

[0010] In yet another embodiment, a method performed by a wireless communication node is disclosed. The method includes: scheduling a first uplink transmission in a first cell and a second uplink transmission in the first cell for the wireless communication device; and receiving, from the wireless communication device, the first uplink transmission and the second uplink transmission transmitted based on at least one of: a first maximum transmission power determined for the first uplink transmission and a second maximum transmission power determined for the second uplink transmission.

[0011] In yet another embodiment, a method performed by a wireless communication node is disclosed. The method includes: transmitting a first DCI to the wireless communication device, where the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the wireless communication device; and transmitting a second DCI to the wireless communication device, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group. The wireless communication device receives a third DCI, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the wireless communication device. None of the first uplink transmission and the second uplink transmission is scheduled on a time-domain transmission resource overlapping with the time-domain transmission resource of the third uplink transmission, or each of the first uplink transmission and the second uplink transmission is scheduled on a time-domain transmission resource overlapping with the time-domain transmission resource of the third uplink transmission.

[0012] In yet another embodiment, a method performed by a wireless communication node is disclosed. The method includes: transmitting a first DCI to the wireless communication device, where the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the wireless communication device; and transmitting a second DCI to the wireless communication device, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group. The wireless communication device receives a third DCI, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the wireless communication device. At least two of the first uplink transmission, the second uplink transmission, and the third uplink transmission are scheduled on non-overlapping time-domain transmission resources.

[0013] In yet another embodiment, a method performed by a wireless communication node is disclosed. The method includes: determining a semi-static frame structure configuration for a first cell group for dual-connectivity or multi-connectivity of a wireless communication device. The maximum transmission power of the uplink transmission of the wireless communication device on a time unit is determined based on the semi-static frame structure configuration, where the time unit is a time unit in a second cell group for the dual-connectivity or multi-connectivity of the wireless communication device.

[0014] In yet another embodiment, a wireless communication device is disclosed. The wireless communication device includes a processor and a memory, where the processor is configured to read code from the memory and implement the method in some embodiments. In yet another embodiment, a computer program product is disclosed. The computer program product includes computer-readable program medium code stored thereon, which causes the processor to implement the method in some embodiments when executed by the processor.

[0015] The above and other aspects and their implementations are described in more detail in the drawings, the description, and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various exemplary embodiments of the present invention are described in detail below with reference to the following drawings. The drawings are provided for illustrative purposes only and depict only the exemplary embodiments of the present invention to facilitate the reader's understanding of the present invention. Therefore, the drawings should not be considered as a limitation on the breadth, scope, or applicability of the present invention. It should be noted that these drawings are not necessarily drawn to scale for clarity and ease of illustration.

[0017] Figure 1 An exemplary communication network that can implement the technology disclosed in the present invention according to an embodiment of the present invention is shown.

[0018] Figure 2 A block diagram of a Base Station (BS) according to some embodiments of the present invention is shown.

[0019] Figure 3 A flowchart of a method performed by a BS according to some embodiments of the present invention is shown.

[0020] Figure 4 A block diagram of a User Equipment (UE) according to some embodiments of the present invention is shown.

[0021] Figure 5 A flowchart of a method performed by a UE according to some embodiments of the present invention is shown.

[0022] Figure 6 An exemplary situation where a UE has scheduled an uplink transmission with overlapping time-domain transmission resources according to some embodiments of the present invention is shown.

[0023] Figure 7 Illustrates an exemplary time slot structure in different cell groups according to some embodiments of the present invention. Detailed implementation

[0024] The various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, so that those of ordinary skill in the art can implement and use the present invention. It will be obvious to those of ordinary skill in the art that after reading the present invention, various changes or modifications can be made to the examples described herein without departing from the scope of the present invention. Therefore, the present invention is not limited to the exemplary embodiments and applications described and illustrated herein. Additionally, the specific order or hierarchy of steps in the methods disclosed in the present invention is merely an exemplary method. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be rearranged while remaining within the scope of the present invention. Therefore, those of ordinary skill in the art will understand that the methods and / or techniques disclosed in the present invention present various steps or actions in an exemplary order, and the present invention is not limited to the specific order or hierarchy presented, unless otherwise expressly stated.

[0025] A typical wireless communication network includes one or more base stations (commonly referred to as "BS") each of which can provide geographical radio coverage, and one or more wireless user devices (commonly referred to as "UE") that can send and receive data within the radio coverage. In a 5G NR network, Dual Connectivity (DC) is proposed to allow a UE with multiple transceivers to simultaneously transmit data to or receive data from at least two BSs (e.g., a Master gNodeB (MgNB or MN) and a Secondary gNodeB (SgNB or SN)). The UE can be simultaneously connected to the Master Cell Group (MCG) associated with the MN and the Secondary Cell Group (SCG) associated with the SN to increase data rate, reduce latency, and improve reliability.

[0026] When the UE needs to transmit multiple uplink transport channels or signals with completely or partially overlapping time-domain resources, the total available uplink transmission power of the UE may not meet the requirements of all uplink transport channels or signals. In this case, based on a certain priority rule, the UE needs to allocate the limited uplink transmission power to the uplink transport channels or signals with higher priorities. For various uplink transport channels or signals within a CG (MCG or SCG) in the CA scenario, the priority order is as follows: Physical Random Access Channel (PRACH) > Physical Uplink Control Channel (PUCCH) carrying Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) / Scheduling Request (SR) = Physical Uplink Shared Channel (PUSCH) carrying HARQ-ACK > PUCCH carrying Channel State Information (CSI) = PUSCH carrying CSI > PUSCH not carrying Uplink Control Information (UCI) > Aperiodic Sounding Reference Signal (A-SRS) > Periodic SRS (P-SRS) / Semi-Persistent SRS (SP-SRS). For the same uplink transport channel or signal in a CG (MCG or SCG), its priority when transmitted on the primary cell is higher than that when transmitted on the secondary cell. According to another priority rule, in the DC scenario, the uplink transport channels or signals in different CGs have the following priority order: Uplink transport channels or signals on the MCG > Uplink transport channels or signals on the SCG.

[0027] The uplink transmissions of different CGs may differ in the following aspects: numbers, transmission durations, transmission start symbols, and the intervals between the uplink transmissions and the Physical Downlink Control Channel (PDCCH) that schedules or activates the uplink transmissions. After receiving the PDCCH that schedules or activates the uplink transmission, the UE may wait for a period of time to determine the transmission power of the uplink transmission, rather than immediately making a decision on the transmission power of the uplink transmission. Therefore, the UE may comprehensively consider the PDCCHs received on multiple CGs so as to decide the power allocation between different uplink transmissions in a more reasonable manner. In the present invention, the latest time when the UE determines the transmission power of the uplink transmission may be referred to as the deadline of the uplink transmission.

[0028] According to the look-ahead mechanism, the terminal determines the transmission power of a certain uplink transmission no later than the deadline. According to various embodiments of the present invention, from the perception of the uplink transmission requirement by the terminal to the deadline, the terminal may comprehensively determine the transmission power of the target uplink transmission by combining the uplink transmission requirements learned on other CGs or other CCs.

[0029] The method disclosed in the present invention may be implemented in a wireless communication network, where the BS and the UE may communicate with each other via a communication link, for example, via a downlink radio frame from the BS to the UE or via an uplink radio frame from the UE to the BS. In various embodiments, the BS in the present invention may be referred to as the network side and may include or be implemented as a next-generation Node B (gNB), an E-UTRAN Node B (eNB), a Transmission / Reception Point (TRP), an Access Point (AP), etc. Although the UE in the present invention may be referred to as a terminal and may include or be implemented as a Mobile Station (MS), a Station (STA), etc. According to various embodiments of the present invention, the BS and the UE may be respectively described herein as non-limiting examples of a "wireless communication node" and a "wireless communication device", which may practice the method disclosed herein and may be capable of wireless and / or wired communication.

[0030] Figure 1 An exemplary communication network 100 according to an embodiment of the present invention is shown, in which the technology disclosed in the present invention may be implemented. As Figure 1As shown, the exemplary communication network 100 includes a first base station (master BS) 110 and a second base station (secondary BS) 120. The master BS 110 is in the master cell group (MCG) 101, which also includes a plurality of UEs, UE1 111…UE2 112, where the master BS 110 can communicate with these UEs according to a wireless protocol. Similarly, the secondary BS 120 is located in the secondary cell group (SCG) 102, which also includes a plurality of UEs, UE2112, UE3 123…UE4 124, where the secondary BS 120 can communicate with these UEs according to a wireless protocol. UE2 112 is in both the MCG 101 and the SCG 102. Thus, a dual connection (DC) is established simultaneously between UE2 112 and the two base stations (master BS 110 and secondary BS 120). The two cell groups (and base stations) are named the master cell group and the secondary cell group with respect to UE2 112. If there are additional UEs located in both cell groups, then compared with Figure 1 as shown, the primary and secondary roles of the two cell groups (and base stations) may be swapped.

[0031] Each UE can perform an uplink transmission to the BS associated with that UE using the transmission power determined before the uplink transmission. When a UE determines or applies its transmission power for an uplink transmission, the UE can consider other uplink transmissions having time-domain resources overlapping with that uplink transmission. This is particularly useful for UEs with an established DC, such as UE2 112. Since the master BS 110 and the secondary BS 120 can independently and separately schedule the two uplink transmissions for UE2 112, these two uplink transmissions can be scheduled with overlapping time and / or frequency resources.

[0032] Figure 2 A block diagram of a BS 200 according to some embodiments of the present invention is shown. BS 200 is an example of a device that can be configured to implement the various methods described in the present invention. As Figure 2 shown, the BS 200 includes a housing 240 containing a system clock 202, a processor 204, a memory 206, a transceiver 210 including a transmitter 212 and a receiver 214, a power module 208, an uplink transmission scheduler 220, a downlink control information generator 222, a frame structure configurator 224, and an uplink data analyzer 226.

[0033] In this embodiment, the system clock 202 provides timing signals to the processor 204 for controlling the timing of all operations of the BS 200. The processor 204 controls the overall operation of the BS 200 and may include one or more processing circuits or modules, such as a Central Processing Unit (CPU) and / or a general-purpose microprocessor, a microcontroller, Digital Signal Processors (DSPs), a Field Programmable Gate Array (FPGA), Programmable Logic Devices (PLDs), a controller, a state machine, gated logic, discrete hardware components, any combination of dedicated hardware finite state machines, or any other suitable circuits, devices, and / or structures that can perform calculations or other manipulations of data.

[0034] The memory 206 (which may include Read-Only Memory (ROM) and Random Access Memory (RAM)) can provide instructions and data to the processor 204. A portion of the memory 206 may also include Non-Volatile Random Access Memory (NVRAM). The processor 204 generally performs logical and arithmetic operations based on program instructions stored within the memory 206. The instructions stored in the memory 206 (also referred to as software) can be executed by the processor 204 to perform the methods described in the present invention. The processor 204 and the memory 206 together form a processing system for storing and executing software. As used in the present invention, "software", whether referred to as software, firmware, middleware, microcode, etc., refers to any type of instructions that can configure a machine or device to perform one or more desired functions or processes. The instructions may include code (e.g., in source code format, binary code format, executable code format, or any other suitable code format). When executed by one or more processors, the instructions cause the processing system to perform the various functions described in the present invention.

[0035] A transceiver 210 including a transmitter 212 and a receiver 214 allows the BS 200 to transmit data to and receive data from a remote device (e.g., a UE or another BS). An antenna 250 is generally attached to the housing 240 and electrically coupled to the transceiver 210. In various embodiments, the BS 200 includes (not shown) multiple transmitters, multiple receivers, and multiple transceivers. In one embodiment, the antenna 250 is replaced by a multi-antenna array 250 (which may form multiple beams, each beam pointing in a different direction). The transmitter 212 may be configured to wirelessly transmit packets having different packet types or functions, such packets being generated by the processor 204. Similarly, the receiver 214 is configured to receive packets having different packet types or functions, and the processor 204 is configured to process packets of a variety of different packet types. For example, the processor 204 may be configured to determine the type of a packet and process the packet and / or fields of the packet accordingly.

[0036] In wireless communication, an uplink scheduler 220 of the BS 200 may schedule multiple uplink transmissions in a cell for a UE, such as a first uplink transmission and a second uplink transmission in a first cell. In one embodiment, the first uplink transmission and the second uplink transmission are scheduled on overlapping time-domain transmission resources.

[0037] In this example, an uplink data analyzer 226 may receive the first uplink transmission and the second uplink transmission from the UE via the receiver 214. In one embodiment, the first uplink transmission and the second uplink transmission are transmitted based on at least one of a first maximum transmission power determined for the first uplink transmission and a second maximum transmission power determined for the second uplink transmission.

[0038] In one embodiment, the first uplink transmission and the second uplink transmission are received with the minimum value of the first maximum transmission power and the second maximum transmission power as the maximum transmission power. In yet another embodiment, the first uplink transmission and the second uplink transmission are received with the second maximum transmission power as the maximum transmission power. The second maximum transmission power may be determined at least in part based on the transmission power used for a third uplink transmission in a second cell.

[0039] In one embodiment, the first cell is in a first cell group for dual-connectivity or multi-connectivity of the UE; the second cell is in a second cell group for dual-connectivity or multi-connectivity of the UE. In one embodiment, the first cell group is a secondary cell group; the second cell group is a primary cell group.

[0040] In one embodiment, the first maximum transmission power is equal to the total transmission power supported by the UE. In one embodiment, the second maximum transmission power is determined based on: the transmission power for a third uplink transmission in a second cell; the total transmission power supported by the UE; the maximum transmission power preconfigured for the uplink transmission of the UE; and a minimum function. In one embodiment, the third uplink transmission and the second uplink transmission are scheduled on overlapping time-domain transmission resources.

[0041] In one embodiment, the first maximum transmission power is determined no later than a first deadline associated with a first uplink transmission; and the second maximum transmission power is determined no later than a second deadline associated with a second uplink transmission, where the first deadline is before the second deadline. The uplink data analyzer 226 may also analyze the uplink data of the received uplink transmission.

[0042] The downlink control information generator 222 in this example may generate DCI including at least one symbol through the PDCCH and send the DCI to the UE via the transmitter 212 to activate or schedule an uplink transmission. In one embodiment, the downlink control information generator 222 may transmit a first DCI to the UE, where the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the UE; and transmit a second DCI to the UE, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group. The UE may receive a third DCI, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the UE. In one embodiment, neither the first uplink transmission nor the second uplink transmission is scheduled on time-domain transmission resources overlapping with the time-domain transmission resources of the third uplink transmission, or both the first uplink transmission and the second uplink transmission are scheduled on time-domain transmission resources overlapping with the time-domain transmission resources of the third uplink transmission. The UE does not expect to be scheduled by the BS (such as a gNB) for other overlapping situations between the three uplink transmissions. In one embodiment, the UE receives the second DCI no earlier than the deadline associated with the first uplink transmission. In another embodiment, the UE receives the second DCI no earlier than the deadline associated with the third uplink transmission.

[0043] The downlink control information generator 222 may generate DCI based on a request from the uplink transmission scheduler 220. In one embodiment, the ending symbol of the time-domain transmission resources of the second uplink transmission is scheduled to be no later than the ending symbol of the time-domain transmission resources of the first uplink transmission.

[0044] In one embodiment, at least two of the first uplink transmission, the second uplink transmission, and the third uplink transmission are scheduled on non-overlapping time-domain transmission resources. In one example, the first uplink transmission and the second uplink transmission are scheduled on non-overlapping time-domain transmission resources. The UE does not expect to be scheduled on the overlapping time-domain transmission resources between the first uplink transmission and the second uplink transmission. In another example, the third uplink transmission and the second uplink transmission are scheduled on non-overlapping time-domain transmission resources. The UE does not expect to be scheduled on the overlapping time-domain transmission resources between the second uplink transmission and the third uplink transmission.

[0045] The frame structure configurator 224 in this example may determine a semi-static frame structure configuration for the UE in the first cell group for dual-connection or multi-connection of the UE. In one embodiment, the UE determines the maximum transmission power of the uplink transmission of the UE on a time unit based on the semi-static frame structure configuration, where the time unit is a time unit in the second cell group for dual-connection or multi-connection of the UE. In one embodiment, the length of the time unit is equal to the length of the longest time unit on all component carriers in the second cell group. For example, the time unit may be a frame, a sub-frame, a time slot, or a sub-time slot.

[0046] The power module 208 may include a power source, such as one or more batteries, and a power regulator to provide regulated power to each of the Figure 2 above-mentioned modules. In some embodiments, if the BS 200 is coupled to a dedicated external power source (e.g., a wall power outlet), the power module 208 may include a transformer and a power regulator.

[0047] The various modules discussed above are coupled together by a bus system 230. For example, the bus system 230 may include a data bus, in addition to a power bus, a control signal bus, and / or a status signal bus of the data bus. It should be understood that the modules of the BS200 may be operably coupled to each other using any suitable technology and medium.

[0048] Although many separate modules or components are shown in Figure 2 , those of ordinary skill in the art will understand that one or more modules may be combined or jointly implemented. For example, the processor 204 may not only implement the functions described above regarding the processor 204, but also implement the functions described above regarding the uplink transmission scheduler 220. Conversely, each module shown in Figure 2 may be implemented using multiple separate components or elements.

[0049] Figure 3 Shows a BS according to some embodiments of the present invention (e.g., Figure 2Flowchart of method 300 performed by BS 200 in []. At step 302, the BS generates a first DCI and transmits the first DCI to the UE, where the first DCI is used to schedule a first uplink transmission to be transmitted in the first cell associated with the UE. At step 304, the BS generates a second DCI and transmits the second DCI to the UE, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell. At step 306, the BS receives the first uplink transmission and the second uplink transmission from the UE. The two uplink transmissions are transmitted based on at least one of a first maximum transmission power determined for the first uplink transmission and a second maximum transmission power determined for the second uplink transmission. In one embodiment, the UE receives a third DCI and determines the second maximum transmission power based on a third uplink transmission, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell associated with the UE. According to different embodiments of the present invention, the order of the steps shown in [] can be changed. Figure 3 The order of the steps shown in [].

[0050] Figure 4 Block diagram of UE 400 according to some embodiments of the present invention is shown. UE 400 is an example of a device that can be configured to implement various methods described in the present invention. As Figure 4 shown, UE 400 includes a housing 440 containing a system clock 402, a processor 404, a memory 406, a transceiver 410 including a transmitter 412 and a receiver 414, a power module 408, a transmission power determiner 420, a time threshold determiner 422, a downlink control information analyzer 424, and an uplink data generator 426.

[0051] In this embodiment, the system clock 402, the processor 404, the memory 406, the transceiver 410, and the power module 408 operate similar to the system clock 202, the processor 204, the memory 206, the transceiver 210, and the power module 208 in BS 200. An antenna 450 or a multi-antenna array 450 is generally attached to the housing 440 and electrically coupled to the transceiver 410.

[0052] The transmission power determiner 420 in this example can determine or apply the transmission power for the uplink transmission of UE 400 based at least in part on a time threshold associated with the uplink transmission. The time threshold indicates the latest time at which the transmission power should be determined or applied. UE 400 can perform an uplink transmission based on the transmission power to the BS. In one embodiment, the transmission power determiner 420 determines a first maximum transmission power for a first uplink transmission in a first cell; and determines a second maximum transmission power for a second uplink transmission in the first cell.

[0053] The transmission power determiner 420 may send the determined transmission power to the uplink data generator 426. The uplink data generator 426 in this example may generate uplink data based on the transmission power and perform an uplink transmission. For example, the uplink data generator 426 may perform a first uplink transmission and a second uplink transmission based on at least one of a first maximum transmission power and a second maximum transmission power. In one embodiment, the first uplink transmission and the second uplink transmission are performed using the minimum value of the first maximum transmission power and the second maximum transmission power as the maximum transmission power. In yet another embodiment, the first uplink transmission and the second uplink transmission are performed using the second maximum transmission power as the maximum transmission power.

[0054] In one embodiment, the transmission power determiner 420 may determine the second maximum transmission power based at least in part on the transmission power for a third uplink transmission in the second cell. In one embodiment, the first cell is in a first cell group for dual-connectivity or multi-connectivity for the UE 400; the second cell is in a second cell group for dual-connectivity or multi-connectivity for the UE 400. In one embodiment, the first cell group is a secondary cell group; the second cell group is a primary cell group.

[0055] In one embodiment, the first maximum transmission power is equal to the total transmission power supported by the UE 400. In yet another embodiment, the second maximum transmission power is determined based on: the transmission power for a third uplink transmission in the second cell; the total transmission power supported by the UE 400; the maximum transmission power pre-configured for the uplink transmission of the UE 400; and a minimum function.

[0056] The time threshold determiner 422 in this example may determine the time threshold and the deadline based on a semi-static configuration of the BS or based on system predefined. In one embodiment, the time threshold determiner 422 may determine: determine the first maximum transmission power not later than a first deadline associated with the first uplink transmission; determine the second maximum transmission power not later than a second deadline associated with the second uplink transmission. In one embodiment, the first deadline is before the second deadline.

[0057] In this example, the downlink control information analyzer 424 can receive DCI sent via PDCCH including at least one symbol from the BS via the receiver 414 for activating or scheduling an uplink transmission. The downlink control information analyzer 424 can analyze the DCI and send the analyzed DCI to the transmission power determiner 420 to determine or apply the transmission power based on a time threshold and an end time for receiving at least one symbol. In one embodiment, based on the analysis of the DCI, the downlink control information analyzer 424 can determine to schedule a first uplink transmission and a second uplink transmission on overlapping time-domain transmission resources. In another embodiment, based on the analysis of the DCI, the downlink control information analyzer 424 can determine to schedule a third uplink transmission and a second uplink transmission on overlapping time-domain transmission resources.

[0058] In one embodiment, the downlink control information analyzer 424 receives a first DCI, where the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the UE 400; receives a second DCI, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group; and receives a third DCI, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the UE 400. In one embodiment, the second DCI is received not earlier than a deadline associated with the first uplink transmission. In another embodiment, the second DCI is received not earlier than a deadline associated with the third uplink transmission.

[0059] In one embodiment, neither the first uplink transmission nor the second uplink transmission is scheduled on time-domain transmission resources overlapping with those of the third uplink transmission. In another embodiment, each of the first uplink transmission and the second uplink transmission is scheduled on time-domain transmission resources overlapping with those of the third uplink transmission. If the time-domain resources of the first uplink transmission and the third uplink transmission overlap, the UE 400 does not expect to be scheduled such that the time-domain resources of the second uplink transmission and the third uplink transmission do not overlap. If the time-domain resources of the first uplink transmission and the third uplink transmission do not overlap, the UE 400 does not expect to be scheduled such that the time-domain resources of the second uplink transmission and the third uplink transmission overlap. In one embodiment, the end symbol of the time-domain transmission resources of the second uplink transmission is scheduled not later than the end symbol of the time-domain transmission resources of the first uplink transmission. Thus, the UE 400 does not expect the time-domain end symbol of the second uplink transmission to be scheduled later than the time-domain end symbol of the first uplink transmission.

[0060] In one embodiment, at least two of the first uplink transmission, the second uplink transmission, and the third uplink transmission are scheduled on non-overlapping time-domain transmission resources. In one example, the first uplink transmission and the second uplink transmission are scheduled on non-overlapping time-domain transmission resources. In another example, the third uplink transmission and the second uplink transmission are scheduled on non-overlapping time-domain transmission resources.

[0061] In one embodiment, the transmission power determiner 420 may determine the maximum transmission power of the uplink transmission of the UE 400 in a time unit, where the time unit is a time unit in the first cell group for dual connectivity or multi-connectivity of the UE 400. The maximum transmission power may be determined based on the semi-static frame structure configuration of the second cell group for dual connectivity or multi-connectivity of the UE 400. In one embodiment, the length of the time unit is equal to the length of the longest time unit on all component carriers in the first cell group. For example, the time unit may be a frame, a subframe, a time slot, or a sub-time slot.

[0062] The various modules discussed above are coupled together via a bus system 430. For example, the bus system 430 may include a data bus, as well as a power bus, a control signal bus, and / or a status signal bus in addition to the data bus. It should be understood that the modules of the UE 400 may be operably coupled to each other using any suitable technology and medium.

[0063] Although many separate modules or components are shown Figure 4 in, those of ordinary skill in the art will understand that one or more modules may be combined or jointly implemented. For example, the processor 404 may implement not only the functions described above with respect to the processor 404, but also the functions described above with respect to the transmission power determiner 420. Conversely, each module shown Figure 4 may be implemented using multiple separate components or elements.

[0064] Figure 5 illustrates, according to some embodiments of the present invention, by a UE (e.g., Figure 4Flowchart of method 500 executed by UE 400 in []. At step 502, the UE receives a first DCI, where the first DCI is used to schedule a first uplink transmission to be transmitted in the first cell associated with the UE. At step 504, the UE determines a first maximum transmission power for the first uplink transmission. At step 506, the UE receives a second DCI, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell associated with the UE. At step 508, based on a third uplink transmission in a second cell, the UE determines a second maximum transmission power for the second uplink transmission. At step 510, the UE performs the first uplink transmission and the second uplink transmission based on at least one of the first maximum transmission power and the second maximum transmission power. According to different embodiments of the present invention, the order of the steps shown in [] can be changed. Figure 5 The order of the steps shown in [].

[0065] Now, different embodiments of the present invention will be described in detail below. Note that the features of the embodiments and examples in the present invention can be combined with each other in any way without conflict.

[0066] In the first embodiment, when calculating two power upper limits or two maximum transmission powers in the same CG within the same time period, the smaller power upper limit will be used as the final transmission power upper limit. Figure 6 An exemplary situation is shown where a UE has scheduled uplink transmissions with overlapping time-domain transmission resources according to some embodiments of the present invention.

[0067] As Figure 6 shown, the UE first receives DCI 612 for uplink transmission 1616 scheduled on the first CC 610 of the SCG. Therefore, the UE needs to determine the transmission power of uplink transmission 1616 before the deadline t1 614 (which is the latest power decision time corresponding to uplink transmission 1 616).

[0068] According to the requirement that the uplink transmission priority on the MCG is higher than the uplink transmission priority on the SCG, the UE first needs to allocate power for the uplink transmission on the MCG. As Figure 6 shown, by the deadline t1 614, the UE has not received any scheduling DCI to schedule any uplink transmission on the MCG, and there is no semi-statically configured uplink transmission to be transmitted on the MCG. Therefore, the UE determines that: within the duration of uplink transmission 1 616, the maximum transmission power on the SCG can be P total , which is the total transmission power supported by the UE.

[0069] Then, the UE receives DCI 622 that schedules uplink transmission 2 626 on the second CC 620 of the SCG. For uplink transmission 2 626 on the SCG, the UE needs to determine the transmission power for uplink transmission 2626 no later than the deadline t2 624. As Figure 6 shown, before the deadline t2 624, the UE receives DCI 632 (which schedules uplink transmission 3 636 on the CC 630 of the MCG). Thus, the UE knows that there will be an uplink transmission 3636 scheduled on time resources that overlap with the time resources for uplink transmission 2 626, as Figure 6 shown. Thus, the UE determines that: during the duration of uplink transmission 2 626, the maximum transmission power on the SCG can be min(P SCG ,P total -P MCG Used ), where P SCG is the maximum transmission power configured for uplink transmission on the SCG, and P MCG Used is the uplink transmission power allocated for the MCG. In one embodiment, the UE determines the transmission power for uplink transmission 3 636 by the deadline t2 624 instead of by the deadline t3 634.

[0070] Thus, two maximum transmission powers are calculated for the SCG. Since uplink transmission 1 616 and uplink transmission 2 626 are scheduled on overlapping time domain resources, the terminal or UE should use the lower of the two maximum transmission powers as the transmission power upper limit for all uplink transmissions that fully or partially overlap in the time domain resources. That is, the terminal will use min(P SCG ,P total -P MCG Used ) as the maximum transmission power for transmitting uplink transmission 1 616 and uplink transmission 2 626.

[0071] As Figure 6 shown, uplink transmission 1 616 and uplink transmission 2 626 have an overlapping part T. During the overlapping part T, the UE can perform uplink transmission 1 616 and uplink transmission 2626 with a total transmission power up to min(P SCG ,P total -P MCG Used ). The UE can use up to min(P SCG ,P total -P MCG Used) to transmit the non-overlapping portions (portions outside the overlapping portion T) of each of the uplink transmission 1 616 and the uplink transmission 2 626. In another embodiment, the UE receives the DCI 622 before the cut-off time t1 614 and may determine the transmission power for the uplink transmission 1 616 based on the uplink transmission 2 626. According to various embodiments, each of the uplink transmission 1 616, the uplink transmission 2 626, and the uplink transmission 3 636 may be one of the following: PRACH, PUCCH carrying HARQ-ACK, SR, PUSCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying CSI, PUSCH without UCI, A-SRS, P-SRS, or SP-SRS.

[0072] In a second embodiment, the maximum transmission power on the SCG is determined based on whether there is at least one uplink transmission on the SCG overlapping with the uplink transmission on the MCG. As Figure 6 shown, the UE first receives the DCI 612 of the uplink transmission 1 616 scheduled on the first CC 610 of the SCG, and then receives the DCI 622 of the uplink transmission 2 626 scheduled on the second CC 620 of the SCG. Before the cut-off time t2 624, the UE also receives the DCI 632 of the uplink transmission 3 636 scheduled on the CC630 of the MCG. Although the uplink transmission 3 636 on the MCG has time-domain resources that only overlap with the time-domain resources of the uplink transmission 2 626 on the SCG, the uplink transmission 1 616 and the uplink transmission 2 626 on the SCG have overlapping time-domain resources.

[0073] Therefore, considering the uplink transmission 1 616 and the uplink transmission 2 626 as an aggregated uplink transmission scheduled on the SCG, the aggregated uplink transmission on the SCG and the uplink transmission 3 636 on the MCG have overlapping time-domain resources. Therefore, the UE determines that: during the duration of the aggregated uplink transmission, that is, during the duration from the start of the uplink transmission 1 616 to the end of the uplink transmission 2 626, the maximum transmission power on the SCG can be min(P SCG ,P total -P MCG Used ), where P SCG is the maximum transmission power configured for the uplink transmission on the SCG, and P MCG Used is the uplink transmission power allocated for the MCG. Therefore, the terminal will use min(P SCG ,P total -P MCG Used ) as the maximum transmission power for transmitting both the uplink transmission 1 616 and the uplink transmission 2 626.

[0074] In the third embodiment, when multiple uplink transmissions are scheduled on overlapping time-domain resources on the SCG, they are consistent in terms of whether they overlap with the uplink transmission on the MCG. That is, all uplink transmissions among the multiple uplink transmissions have time-domain resources overlapping with the uplink transmission on the MCG, or any one of the multiple uplink transmissions does not have time-domain resources overlapping with the uplink transmission on the MCG. The base station preferably avoids the situation as shown in Figure 6 In this embodiment, for multiple uplink transmissions having overlapping time-domain resources on the SCG, they should be scheduled to be consistent in terms of whether they have overlapping time-domain resources with one or more uplink transmissions on the MCG.

[0075] In one example, if Figure 6 the first scheduled uplink transmission 1616 on the SCG has time-domain resources overlapping with the uplink transmission 3636 on the MCG, then when the base station schedules the uplink transmission 2626 on the SCG to have time-domain resources overlapping with the uplink transmission 1616, the base station will ensure that the uplink transmission 2626 also overlaps with the uplink transmission 3636 in the time-domain resources.

[0076] In another example, if Figure 6 the first scheduled uplink transmission 1616 on the SCG does not have time-domain resources overlapping with the uplink transmission 3636 on the MCG, then when the base station schedules the uplink transmission 2626 on the SCG having time-domain resources overlapping with the uplink transmission 1616, the base station will ensure that the uplink transmission 2626 also does not overlap with the uplink transmission 3636 in the time-domain resources. The UE does not expect to be scheduled such that the time-domain resources of the uplink transmission 2626 and the uplink transmission 3636 overlap with each other.

[0077] In the fourth embodiment, the time-domain end symbol of the uplink transmission 2626 is scheduled to be not later than the time-domain end symbol of the uplink transmission 1616. The base station preferably avoids the situation as shown in Figure 6 For multiple uplink transmissions having overlapping time-domain resources on the SCG, they should be scheduled to be consistent according to whether they have overlapping time-domain resources with one or more uplink transmissions on the MCG. In a similar manner to Figure 6In one example, after receiving DCI 612 for scheduling or activating uplink transmission 1616, DCI 622 for scheduling or activating uplink transmission 2 626 is received. In this case, if uplink transmission 1 616 does not have time-domain resources overlapping with the time-domain resources of the uplink transmission on the MCG, when the base station schedules uplink transmission 2 626, the base station will ensure that the end symbol of the time-domain resources of uplink transmission 2 is not later than the end symbol of the time-domain resources of uplink transmission 1 in this embodiment, which can ensure that uplink transmission 1 and uplink transmission 2 are consistent regarding whether they have time-domain resources overlapping with one or more uplink transmissions on the MCG.

[0078] In the fifth embodiment, after the cut-off time t1 614, no other uplink transmissions on the SCG are scheduled to have time-domain resources overlapping with the target uplink transmission (i.e., uplink transmission 1 616). The base station preferably avoids the situation as Figure 6 shown when performing scheduling. The base station determines the maximum transmission power of uplink transmission 1 616 on the SCG at the latest by the cut-off time t1614. After the cut-off time t1 614, in this embodiment, the UE does not expect the base station to schedule any uplink transmissions on the SCG that have overlapping time-domain resources with uplink transmission 1. If the base station schedules uplink transmission 2 on the SCG, the base station will ensure that uplink transmission 2 and uplink transmission 1 do not have overlapping time-domain resources.

[0079] In the sixth embodiment, after the cut-off time t1 614, no other uplink transmissions on the SCG are scheduled to have overlapping time-domain resources with any uplink transmissions on the MCG. The base station preferably avoids the situation as Figure 6 shown when performing scheduling. The base station determines the maximum transmission power of uplink transmission 1 616 on the SCG at the latest by the cut-off time t1 614. After the cut-off time t1 614, in this embodiment, the UE does not expect the base station to schedule any uplink transmissions on the SCG that have overlapping time-domain resources with any uplink transmissions on the MCG. If the base station schedules uplink transmission 2 on the SCG, then in this embodiment, the base station will ensure that uplink transmission 2 does not have overlapping time-domain resources with any uplink transmissions on the MCG, including, for example, uplink transmission 3 636 on the MCG.

[0080] In the seventh embodiment, for a terminal without dynamic power sharing capability in a DC scenario, the base station can configure the terminal to operate under non-dynamic power sharing or semi-static power sharing. For such a terminal, the base station will configure the maximum transmission power P MCG in the MCG and configure the maximum transmission power P SCG in the SCG. In addition, the terminal can determine another maximum transmission power P' of the MCG based on the configuration parameters in RAN4 or higher layer signaling from the base station. MCGand the other maximum transmission power P' of the SCG SCG 。

[0081] For MCG, the terminal needs to determine when to use P MCG as the maximum transmission power, and when to use P' MCG as the maximum transmission power. For SCG, the terminal also needs to determine when to use P SCG as the maximum transmission power, and when to use P' SCG as the maximum transmission power.

[0082] When the terminal determines the maximum transmission power on a specific time unit on the MCG, the terminal can determine the maximum transmission power based on the semi-statically configured frame structure on the SCG. For example, when the semi-static frame structure configuration on the SCG indicates that there is no "uplink" or "flexible" on the time unit, the terminal can determine that the maximum transmission power on the same time unit of the MCG is P' MCG 。Otherwise, the terminal determines that the maximum transmission power on the same time unit of the MCG is P MCG 。The MCG can include multiple CCs, and the sub-carrier spacing (SCS) can be different for different CCs. Therefore, the time unit can be a time unit whose length is determined based on the numerology with the smallest SCS among all CCs on the MCG. That is to say, the length of the time unit is equal to the length of the longest time unit on all CCs on the MCG, such as the longest time slot.

[0083] Figure 7 shows exemplary time slot structures in different cell groups according to some embodiments of the present invention. As Figure 7 shown, for the MCG, the time slot 715 on the component carrier 0 (CC0) is longer than the time slot 725 on the component carrier 1 (CC1). Therefore, the length of the time slot 715 is used as the time unit to determine the maximum transmission power on a specific time unit on the MCG.

[0084] Although various embodiments of the present invention have been described above, it should be understood that they are given by way of example only and not by way of limitation. Similarly, the various figures may depict example architectures or configurations, and these example architectures or configurations are provided to enable those of ordinary skill in the art to understand the exemplary features and functions of the present invention. However, these persons will understand that the present invention is not limited to the example architectures or configurations shown, but can be implemented using a variety of alternative architectures and configurations. In addition, as those of ordinary skill in the art will understand, one or more features of one embodiment can be combined with one or more features of another embodiment described in the present invention. Therefore, the breadth and scope of the present invention should not be limited by any of the above exemplary embodiments.

[0085] It should also be understood that any reference in the present invention to elements using terms such as "first", "second", etc. generally does not limit the number or order of those elements. Instead, these terms can be used in the present invention as a convenient means for distinguishing between two or more elements or instances of an element. Thus, the reference to a first and a second element does not mean that only two elements can be employed, or that the first element must be located before the second element in some manner.

[0086] In addition, those of ordinary skill in the art will understand that any of a variety of different technologies can be used to represent information and signals. For example, data, instructions, commands, information, signals, bits, and symbols, as may be referred to in the above description, can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0087] Those of ordinary skill in the art will further understand that any of the various illustrative logical blocks, modules, processors, devices, circuits, methods, and functions described in connection with the aspects disclosed in the present invention can be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, various forms of programs or design code containing instructions (which may be referred to as "software" or "software modules" for convenience in the present invention), or any combination of these technologies.

[0088] To clearly illustrate this interchangeability of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps have been generally described above in terms of their functionality. Implementing this functionality as hardware, firmware, or software, or a combination of these technologies, depends on the particular application and the design constraints imposed on the overall system. A person skilled in the art can implement the described functionality in various ways for each particular application, but such implementation decisions do not depart from the scope of the present invention. According to various embodiments, a processor, device, component, circuit, structure, machine, module, etc. can be configured to perform one or more of the functions described in the present invention. As used in the present invention, the terms "configured to" or "configured for" with respect to a particular operation or function refer to a processor, device, component, circuit, structure, machine, module, etc. that is physically constructed, programmed, and / or arranged to perform the specified operation or function.

[0089] In addition, those of ordinary skill in the art will understand that the various illustrative logical blocks, modules, devices, components, and circuits described in the present invention can be implemented within or executed by an integrated circuit (IC) including a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, or any combination thereof. The logical blocks, modules, and circuits can further include antennas and / or transceivers to communicate with various components within a network or within a device. The general-purpose processor can be a microprocessor, but alternatively, the processor can be any conventional processor, controller, or state machine. The processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other suitable configuration to perform the functions described in the present invention.

[0090] If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of the methods or algorithms disclosed in the present invention can be implemented as software stored on a computer-readable medium. The computer-readable medium includes computer storage media and communication media, and the communication media includes any medium that can enable a computer program or code to be transmitted from one place to another. The storage media can be any available medium accessible by a computer. By way of example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM, or other optical disk storage, magnetic disk storage, or other magnetic storage devices, and any other medium that can be used to store the desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0091] The term "module" as used in the present invention refers to software, firmware, hardware, and any combination of these elements to perform the related functions described in the present invention. Additionally, for purposes of discussion, the various modules are described as discrete modules; however, it will be apparent to those of ordinary skill in the art that two or more modules can be combined to form a single module that performs the related functions according to an embodiment of the present invention.

[0092] In addition, a memory or other storage and communication components can be employed in embodiments of the present invention. It should be understood that, for clarity, the above description has described embodiments of the present invention with reference to different functional units and processors. However, it will be apparent that any suitable functional distribution between different functional units, processing logic elements, or domains can be used without departing from the present invention. For example, functions illustrated as being performed by separate processing logic elements or controllers can be performed by the same processing logic element or controller. Thus, the reference to a particular functional unit is only a reference to a suitable device for providing the described function and does not indicate a strict logical or physical structure or organization.

[0093] Various modifications to the embodiments described in this invention will be apparent to those skilled in the art, and the general principles defined in this invention can be applied to other embodiments without departing from the scope of the content of this invention. Therefore, the content of this invention is not intended to be limited to the embodiments shown in this invention, but will be accorded the broadest scope consistent with the novel features and principles disclosed in this invention, as set forth in the following claims.

Claims

1. A method performed by a wireless communication device, the method comprising: Determine a first maximum transmission power for a first uplink transmission in a first cell; Determine a second maximum transmission power for a second uplink transmission in the first cell; And Perform the first uplink transmission and the second uplink transmission with the second maximum transmission power as the maximum transmission power; And Determine the second maximum transmission power at least partially based on a transmission power for a third uplink transmission in a second cell; Wherein, the second maximum transmission power is determined based on: The maximum transmission power configured for uplink transmission on the first cell group; The difference between the total transmission power supported by the wireless communication device and the transmission power for the third uplink transmission in the second cell; and a minimum function; Wherein, the first cell is in a first cell group, the first cell group is used for dual connection or multi - connection of the wireless communication device, and the first cell group is a secondary cell group; and The second cell is in a second cell group, the second cell group is used for the dual connection or multi - connection of the wireless communication device, and the second cell group is a primary cell group; Wherein: determine the first maximum transmission power no later than a first deadline associated with the first uplink transmission; and determine the second maximum transmission power no later than a second deadline associated with the second uplink transmission, wherein the first deadline is before the second deadline.

2. The method according to claim 1, wherein: The first maximum transmission power is equal to the total transmission power supported by the wireless communication device.

3. The method according to claim 1, wherein: Schedule the third uplink transmission and the second uplink transmission on overlapping time - domain transmission resources.

4. The method according to claim 1, wherein: Schedule the first uplink transmission and the second uplink transmission on overlapping time - domain transmission resources.

5. The method according to claim 1, wherein, Receive first downlink control information DCI, wherein the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the wireless communication device; Receive second DCI, wherein the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group; and Receive third DCI, wherein the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the wireless communication device, wherein, on time - domain transmission resources overlapping with the time - domain transmission resources of the third uplink transmission, neither the first uplink transmission nor the second uplink transmission is scheduled, or both the first uplink transmission and the second uplink transmission are scheduled.

6. The method according to claim 5, wherein: The end symbol of the time - domain transmission resources of the second uplink transmission is scheduled to be no later than the end symbol of the time - domain transmission resources of the first uplink transmission.

7. The method according to claim 1, wherein, Receive first downlink control information DCI, wherein the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the wireless communication device; Receive second DCI, wherein the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group; and Receive a third DCI, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the wireless communication device, and at least two of the first uplink transmission, the second uplink transmission, and the third uplink transmission are scheduled on non-overlapping time-domain transmission resources.

8. The method according to claim 7, wherein: Receive the second DCI no earlier than the deadline associated with the first uplink transmission; and / or Receive the second DCI no earlier than the deadline associated with the third uplink transmission.

9. The method according to claim 7, wherein: Schedule the first uplink transmission and the second uplink transmission on non-overlapping time-domain transmission resources; and / or Schedule the third uplink transmission and the second uplink transmission on non-overlapping time-domain transmission resources.

10. The method according to claim 1, wherein, Determine the maximum transmission power of the uplink transmission of the wireless communication device on a time unit, where the time unit is a time unit in a first cell group for dual connection or multi-connection of the wireless communication device, where the maximum transmission power is determined based on a semi-static frame structure configuration of a second cell group for the dual connection or multi-connection of the wireless communication device.

11. According to the method of claim 10, wherein: The length of the time unit is equal to the length of the longest time unit on all component carriers in the first cell group; and The time unit is one of a frame, a sub-frame, a time slot, and a sub-time slot.

12. A method performed by a wireless communication node, the method comprising: Schedule a first uplink transmission in a first cell and a second uplink transmission in the first cell for the wireless communication device; where the first uplink transmission corresponds to a first maximum transmission power, and the second uplink transmission corresponds to a second maximum transmission power; and receive the first uplink transmission and the second uplink transmission transmitted with the second maximum transmission power as the maximum transmission power; and determine the second maximum transmission power at least partially based on the transmission power for a third uplink transmission in a second cell; where the second maximum transmission power is determined based on: The maximum transmission power configured for uplink transmission on the first cell group; The difference between the total transmission power supported by the wireless communication device and the transmission power for a third uplink transmission in a second cell; and a minimum function; where the first cell is in a first cell group, the first cell group is for dual connection or multi-connection of the wireless communication device, and the first cell group is a secondary cell group; and The second cell is in a second cell group, the second cell group is for the dual connection or multi-connection of the wireless communication device, and the second cell group is a primary cell group; where: Determine the first maximum transmission power no later than a first deadline associated with the first uplink transmission; and determine the second maximum transmission power no later than a second deadline associated with the second uplink transmission, where the first deadline is before the second deadline.

13. According to the method of claim 12, wherein: The first maximum transmission power is equal to the total transmission power supported by the wireless communication device.

14. According to the method of claim 12, wherein: Schedule the third uplink transmission and the second uplink transmission on overlapping time-domain transmission resources.

15. According to the method of claim 12, wherein: Schedule the first uplink transmission and the second uplink transmission on overlapping time-domain transmission resources.

16. According to the method of claim 12, wherein, Transmit first downlink control information (DCI) to a wireless communication device, where the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the wireless communication device; and Transmit second DCI to the wireless communication device, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group, where The wireless communication device receives third DCI, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the wireless communication device, and Do not schedule either the first uplink transmission or the second uplink transmission on time-domain transmission resources that overlap with the time-domain transmission resources of the third uplink transmission, or schedule both the first uplink transmission and the second uplink transmission on time-domain transmission resources that overlap with the time-domain transmission resources of the third uplink transmission.

17. According to the method of claim 16, wherein: The end symbol of the time-domain transmission resources of the second uplink transmission is scheduled to be no later than the end symbol of the time-domain transmission resources of the first uplink transmission.

18. According to the method of claim 12, wherein, Transmit first downlink control information (DCI) to a wireless communication device, where the first DCI is used to schedule a first uplink transmission to be transmitted in a first cell group associated with the wireless communication device; and Transmit second DCI to the wireless communication device, where the second DCI is used to schedule a second uplink transmission to be transmitted in the first cell group, where The wireless communication device receives third DCI, where the third DCI is used to schedule a third uplink transmission to be transmitted in a second cell group associated with the wireless communication device, and Schedule at least two of the first uplink transmission, the second uplink transmission, and the third uplink transmission on non-overlapping time-domain transmission resources.

19. According to the method of claim 18, wherein: The wireless communication device receives the second DCI no earlier than the deadline associated with the first uplink transmission; and / or The wireless communication device receives the second DCI no earlier than the deadline associated with the third uplink transmission.

20. According to the method of claim 18, wherein: Schedule the first uplink transmission and the second uplink transmission on non-overlapping time-domain transmission resources; and / or Schedule the third uplink transmission and the second uplink transmission on non-overlapping time-domain transmission resources.

21. The method according to claim 12, wherein, Determine a semi-static frame structure configuration for a first cell group for dual-connection or multi-connection of a wireless communication device, where the maximum transmission power of the uplink transmission of the wireless communication device in a time unit is determined based on the semi-static frame structure configuration, where the time unit is a time unit in a second cell group for the dual-connection or multi-connection of the wireless communication device.

22. The method according to claim 21, wherein: The length of the time unit is equal to the length of the longest time unit on all component carriers in the second cell group; and The time unit is one of a frame, a sub-frame, a time slot, a sub-time slot.

23. A wireless communication device, comprising a processor and a memory, wherein, The processor is configured to read code from the memory and implement the method according to any one of claims 1 to 22.

24. A computer storage medium, comprising computer-readable program medium code stored thereon, which when executed by a processor causes the processor to implement the method according to any one of claims 1 to 22.

Images