Systems and methods for providing look-ahead dynamic power control for carrier aggregation

Abstract

A system and method for providing forward-looking dynamic power control for carrier aggregation are disclosed. A method and apparatus for providing dynamic power sharing on a user equipment (UE) are provided. A first uplink transmission is configured. An offset is determined from a starting symbol of the first uplink transmission. Based on the offset, a group of overlapping uplink transmissions on one or more component carriers (CCs) is defined. The group of overlapping uplink transmissions includes at least the first uplink transmission. Total power is shared between uplink transmissions in the group of overlapping uplink transmissions.

Description

[0001] This application is based on and claims priority to U.S. Provisional Patent Application filed in the United States Patent and Trademark Office (USPTO) on February 7, 2020 and assigned serial number 62 / 971,708, U.S. Provisional Patent Application filed in the USPTO on July 18, 2019 and assigned serial number 62 / 875,756, and U.S. Provisional Patent Application filed in the USPTO on July 18, 2019 and assigned serial number 62 / 875,801, the contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates generally to carrier aggregation (CA) power control, and more particularly, to a method and system for look-ahead dynamic power control for CA. Background Art

[0003] CA was introduced in the 3rd Generation Partnership Project (3GPP) to allow user equipment (UE) to simultaneously transmit and receive data on multiple component carriers (CCs) from a single node (e.g., evolved Node B (eNB)). CA increases user throughput as the aggregate bandwidth increases.

[0004] In 3GPP Release 15 (Rel-15), there is no prioritized timeline for UE uplink (UL) power control in CA, and the priority rules are applied on a symbol-by-symbol basis. If the transmission duration is short, such varying symbol-by-symbol power during a single transmission can be disruptive.

[0005] Dual Connectivity (DC) for small cell enhancement was introduced in 3GPP Rel-12. DC allows UE to send and receive data simultaneously on multiple component carriers from two cell groups (CGs) via a primary node and a secondary node. DC can increase user throughput, provide mobility robustness, and support load balancing between eNBs. Compared with a single connection, DC can provide higher per-user throughput by offloading data from the primary node to the secondary node when the primary node is overloaded.

[0006] In a typical scenario, the UE is first connected to the primary node and then to the secondary node. Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) refers to the 4th generation (4G) or long term evolution (LTE). E-UTRAN-New Radio (NR)-DC (EN-DC), NR-E-UTRA (NE)-DC and NR-NR-DC (NN-DC) refer to DC scenarios where the primary node and the secondary node are (eNB, next generation Node B (gNB)), (gNB, eNB) and (gNB, gNB), respectively. eNB is used to define nodes for 4G / LTE, and gNB is used to define nodes for 5G / NR. Rel-15 supports EN-DC, NE-DC and NN-DC (or NR-DC). The deployment scenario in which nodes have different radio access technologies (RATs) is called multi-RAT DC (MR-DC). NE-DC and EN-DC are two examples of MR-DC.

[0007] Figure 1 is a diagram illustrating a NN-DC deployment scenario. UE-1 102 is connected to a single NR node (gNB), specifically, to a master gNB (MgNB) 104. UE-2 106 is also connected to a single NR node (gNB), specifically, to a secondary gNB-2 (SgNB-2) 108. UE-3 110 is simultaneously connected to two NR nodes (gNBs), specifically, to MgNB 104 and SgNB-1 112. The MgNB configures a set of service cells within a master cell group (MCG), and each SgNB configures a set of service cells within a corresponding secondary cell group (SCG). The primary cell of the MCG is called a PCell, and the secondary cell of the MCG is called an SCell. The primary cell of the SCG is called a PSCell. PCell and PSCell are also referred to as special cells (SpCells). Summary of the invention

[0008] According to one embodiment, a method for providing dynamic power sharing on a UE is provided. A first uplink transmission is configured. An offset is determined from a starting symbol of the first uplink transmission. Based on the offset, a group of overlapping uplink transmissions on one or more CCs is defined. The group of overlapping uplink transmissions includes at least the first uplink transmission. Total power is shared between uplink transmissions in the group of overlapping uplink transmissions.

[0009] According to one embodiment, a UE is provided, wherein the UE includes a processor and a non-transitory computer-readable storage medium storing instructions. The instructions, when executed, cause the processor to configure a first uplink transmission. The instructions also cause the processor to determine an offset from a starting symbol of the first uplink transmission. The instructions also cause the processor to define a group of overlapping uplink transmissions on one or more CCs including at least the first uplink transmission based on the offset. The instructions also cause the processor to share total power between uplink transmissions in the group of overlapping uplink transmissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0011] Figure 1 is a diagram illustrating a NN-DC deployment scenario;

[0012] Figure 2 is a diagram illustrating CA power control according to an embodiment;

[0013] Figure 3 is a diagram illustrating overlapping transmission groups according to an embodiment;

[0014] Figure 4 is a diagram showing a power control block according to an embodiment;

[0015] Figure 5 is a diagram showing a next power control block according to an embodiment;

[0016] Figure 6 is a diagram showing a method according to an embodiment of the present invention. Figure 5 A diagram of the resulting maximum allowed power in a power control block of

[0017] Figure 7 is a diagram illustrating a DPS with look-ahead according to an embodiment;

[0018] Figure 8 is a diagram illustrating dynamic power sharing with configured authorized transmissions according to an embodiment;

[0019] Fig. 9 is a flow chart illustrating a method for providing dynamic power sharing on a UE according to an embodiment;

[0020] Fig.10 is a flow chart illustrating a method for defining a group of overlapping transmissions according to an embodiment; and

[0021] Fig.11 is a block diagram of an electronic device in a network environment according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0022] Hereinafter, embodiments of the present disclosure are described in detail with reference to the accompanying drawings. It should be noted that although the same elements are shown in different drawings, they will be represented by the same reference numerals. In the following description, only specific details such as detailed configuration and components are provided to help fully understand the embodiments of the present disclosure. Therefore, it should be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope of the present disclosure. In addition, for clarity and brevity, descriptions of well-known functions and configurations are omitted. The terms described below are defined in consideration of the functions in the present disclosure, and may be different according to the user, the user's intention or custom. Therefore, the definition of the term should be determined based on the content in the entire specification.

[0023] The present disclosure may have various modifications and various embodiments, among which the embodiments are described in detail below with reference to the accompanying drawings. However, it should be understood that the present disclosure is not limited to these embodiments, but includes all modifications, equivalents and replacements within the scope of the present disclosure.

[0024] Although terms including ordinal numbers such as first and second can be used to describe various elements, structural elements are not limited by the terms. The terms are only used to distinguish one element from another element. For example, without departing from the scope of the present disclosure, the first structural element may be referred to as the second structural element. Similarly, the second structural element may also be referred to as the first structural element. As used herein, the term "and / or" includes any combination and all combinations of one or more associated items.

[0025] The terms used herein are only used to describe various embodiments of the present disclosure and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In the present disclosure, it should be understood that the term "including" or "having" indicates the presence of a feature, number, step, operation, structural element, component or a combination thereof, and does not exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, structural elements, components or a combination thereof.

[0026] Unless defined differently, all terms used herein have the same meaning as understood by a person skilled in the art to which the present disclosure belongs. Terms such as those defined in general dictionaries should be interpreted as having the same meaning as the contextual meaning in the relevant art, and will not be interpreted as having an ideal or overly formal meaning unless clearly defined in the present disclosure.

[0027] The electronic device according to one embodiment may be one of various types of electronic devices. The electronic device may include, for example, a portable communication device (e.g., a smart phone), a computer, a portable multimedia device, a portable medical device, a camera, a wearable device, or a household appliance. According to one embodiment of the present disclosure, the electronic device is not limited to those electronic devices described above.

[0028] The terms used in the present disclosure are not intended to limit the present disclosure, but are intended to include various changes, equivalents or alternatives for the corresponding embodiments. With regard to the description of the accompanying drawings, similar reference numerals may be used to refer to similar or related elements. Unless the relevant context clearly indicates otherwise, the singular form of the noun corresponding to the item may include one or more things. As used herein, each phrase in such phrases as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C" and "at least one of A, B or C" may include all possible combinations of the items listed together in a corresponding phrase in the phrase. As used herein, terms such as "the 1st", "the 2nd", "the first" and "the second" may be used to distinguish a corresponding component from another component, but are not intended to limit the component in other aspects (e.g., importance or order). It is intended that if an element (e.g., a first element) is referred to as being “coupled with another element (e.g., a second element)”, “coupled to” another element (e.g., the second element), “connected with” or “connected to” another element (e.g., the second element), with or without the term “operably” or “communicatively”, it indicates that the element may be coupled with the other element directly (e.g., by wire), wirelessly, or via a third element.

[0029] As used herein, the term "module" may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with other terms such as, for example, "logic," "logic block," "component," or "circuit." A module may be a single integrated component adapted to perform one or more functions or a minimum unit or portion of the single integrated component. For example, according to an embodiment, a module may be implemented in the form of an application specific integrated circuit (ASIC).

[0030] In order to determine the transmission power on a given cell for DC, a power control mechanism is used to determine the transmission power within each CG. Such a power determination mechanism is called CA power control and is intended to determine the power of each transmission on the set of serving cells within the CG. If the UE is in DC mode, CA power control is used to determine the power of the MCG and SCG, where the MCG and SCG may also interact between the two CA power control mechanisms used for the CG. However, if the UE is not in DC mode (i.e., is only configured with a set of serving cells in one CG), CA power control is used to determine the power of the transmission on the CG.

[0031] Using CA power control, the maximum total power P for CG is determined for the UE CG The power of each individual transmission is determined according to a single transmission power control scheme. With CA power control, it is ensured that the total power of any given symbol across all serving cells does not exceed the maximum total power P CG If the total power exceeds the maximum total power P CG , then the priority rule is applied to reduce / reduce the power of the lowest priority channel / signal so that the total power is within the maximum total power P CG Inside.

[0032] Figure 2 2 is a diagram illustrating CA power control according to an embodiment. Physical uplink shared channel (PUSCH)-1 202 on CC-0 is scheduled by downlink control information (DCI)-1 on physical downlink control channel (PDCCH) 204. PUSCH-2 206 on CC-1 is scheduled by DCI-2 on PDCCH 208. PUSCH-3 210 is scheduled on CC-2 by DCI-3 on PDCCH 212. PUSCH-4 214 is scheduled on CC-3 by DCI-4 on PDCCH 216. PUSCH-5 218 is scheduled on CC-3, and PUSCH-6 220 is scheduled on CC-4. The powers of PUSCH-1 202, PUSCH-2 206, PUSCH-3 210, PUSCH-4 214, PUSCH-5 218, and PUSCH-6 220 are P1, P2, P3, P4, P5, and P6, respectively. Ensure that the power of PUSCH-4 214 is less than the maximum total power P CG (i.e., P4<P CG ). In addition, ensure that the sum of the powers of PUSCH-2 206, PUSCH-3 210, PUSCH-5 218, and PUSCH-6 220 is less than the maximum total power P CG (i.e., P2+P3+P5+P6<P CG). In addition, ensure that the power of PUSCH-1202 is less than the maximum total power P CG (P1<P CG ).

[0033] For illustrative purposes only, uplink transmission is shown and described as PUSCH in the embodiments herein. Uplink transmission may be implemented as any uplink channel / signal configured via DCI, such as, for example, channel state information (CSI), PUSCH, and physical uplink control channel (PUCCH). Uplink transmission may also be implemented as any uplink channel / signal configured via a configured grant, such as, for example, radio resource control (RRC), cell group (CG)-PUSCH, PUCCH, sounding reference signal (SRS), and physical random access channel (PRACH).

[0034] Typically, when determining the power for a particular transmission opportunity, other overlapping transmissions in other CCs are jointly considered if they are semi-static or if their corresponding DCIs are transmitted early enough.

[0035] An overlapping transmission group may be considered a group of transmissions where each transmission overlaps with at least one other transmission in the same time domain. Furthermore, within the time domain, there should not be any time instance where no transmission occurs. Furthermore, transmissions outside the group do not overlap with transmissions inside the group.

[0036] For a group of overlapping uplink transmissions, the leading transmission of the group is determined to be the transmission with the earliest starting symbol within the group. For CCs other than the CC to which the leading transmission belongs, an offset X is defined μ The offset X is defined as the maximum X of all μ transmitted by UL μ , that is, X = max μ X μ Dynamic grant based transmissions with corresponding scheduled DCI transmitted on PDCCH after the corresponding offset X are discarded from this group. The resulting final group is used to evaluate the power.

[0037] The offset X is calculated as set forth in equation (1) below: μ , and define an offset X for each CC based on the PDCCH decoding time and the power calculation and adjustment time μ , where the PUSCH preparation time is the upper limit for the PDCCH decoding time and the power calculation and adjustment time.

[0038]

[0039] is the PUSCH preparation time (e.g., as defined in Section 6.4 of TS38.214), and the time unit is in symbols of the associated CC. α is defined between 0 and 1. μ corresponds to the subcarrier spacing (SCS) of the DL, where the PDCCH carrying the DCI scheduling the PUSCH is transmitted using the DL, or the SCS of the UL, where the PUSCH will be transmitted using the UL. The PUSCH preparation time is based on the PUSCH timing capability 1 as set forth in Table 1, or based on the PUSCH timing capability 2 as set forth in Table 2.

[0040] Table 1

[0041] μ <![CDATA[PUSCH Preparation Time N 2 [Symbol]]]> 0 10 1 12 2 23 3 36

[0042] Table 2

[0043] μ <![CDATA[PUSCH preparation time N 2 [Symbol] <!-- 4 -->]]> 0 5 1 5.5 2 11 for frequency range 1

[0044] Now refer to Figure 3 , the diagram shows an overlapping transmission group according to an embodiment. PUSCH-1 302 is scheduled on CC-1 (where μ=μ1) by DCI on PDCCH 304. PUSCH-2 306 is scheduled on CC-2 (where μ=μ2) by DCI on PDCCH 308. PUSCH-3 310 is scheduled on CC-3 (where μ=μ3) by DCI on PDCCH 312. PUSCH-1 302, PUSCH-2 306, and PUSCH-3 310 form an overlapping transmission group. PUSCH-2 306 is a preamble transmission. PUSCH-1 302 is kept in the transmission group because PDCCH 304 is before offset X, where offset X is measured from the starting symbol of PUSCH-2 306. X μ1 , X μ2 and X μ3 are the offsets for PUSCH-1 302, PUSCH-2 306, and PUSCH-3 310, respectively. As described above, X is defined as X μ1 , X μ2 and X μ3 Since PDCCH 312 arrives within offset X measured from the starting symbol of PUSCH-2 306, PUSCH-3 310 is removed from the transmission group. PUSCH-3 310 is added to the future group.

[0045] The offset X ensures that information is received from all DCIs when determining power.

[0046] Therefore, according to an embodiment, since the same power is sought to be maintained throughout the transmission, the decision boundary is moved to the beginning of the leading transmission. Future transmissions can be enabled as long as their presence is known early enough.

[0047] Figure 3 The modified group of overlapping transmissions set forth in is called a power control chunk.

[0048] Figure 4 40 is a diagram illustrating a power control block according to an embodiment. The power control block includes PUSCH-1 402 on CC-1 and PUSCH-2 406 on CC-2.

[0049] Usually, as mentioned above Figure 3 The power control block includes a PUSCH set scheduled / triggered by a DCI that meets the timeline. Any two PUSCHs in the power control block overlap each other directly or indirectly. If both PUSCHs are transmitted in at least one common symbol, the two PUSCHs overlap directly. The two PUSCHs overlap indirectly through another PUSCH. Specifically, when PUSCH A and PUSCH B do not overlap directly with each other but each overlaps directly with PUSCH C, PUSCH A overlaps indirectly with PUSCH B. Two PUSCHs may overlap indirectly through a directly or indirectly overlapping PUSCH set.

[0050] The power control chunk may include a configured grant PUSCH, any other uplink channel / signal configured via a grant, or any other uplink channel / signal configured via a DCI.

[0051] The timeline of the power control chunk is defined relative to the transmission with the earliest starting symbol in the power control chunk, referred to as the preamble transmission.

[0052] Any dynamically granted uplink transmission with a DCI arriving after X symbols before starting the preamble transmission is not included in the power control chunk.

[0053] The network may configure the UE via RRC configuration so that the power control chunk only includes the channel / signal with the earliest start time (ie, the preamble channel / signal). The next power control chunk will include the channel / signal with the second earliest start time.

[0054] For a given power control chunk, the UE allocates power for UL transmissions based on the priority order while maintaining the same power during one transmission.

[0055] To achieve the allocation, a set is identified that contains all transmissions in a power control block. A single transmission with the highest priority is identified from the transmissions in the set. The identified transmission is allocated the scheduled power. If the current total power (i.e., the sum of the powers of all current and previously identified transmissions) exceeds the maximum allowed power in at least one symbol of the transmission, the power of the currently identified transmission is scaled down so that the current total power does not exceed the maximum allowed power. If the power of the currently identified transmission is scaled down to zero, the identified transmission is discarded. The identified transmission is removed from the set, and if the modified set is not empty, the next transmission with the highest priority is identified from the remaining transmissions in the set, and the process is repeated.

[0056] The power used for PUSCH-1 402 is P 1 , and the power used for PUSCH-2 406 is P 2 It is assumed that there is no uplink transmission before the arrival of the scheduling DCI for PUSCH-2 406. The maximum allowed power for the entire duration of power control chunk n is P max Assume P max <P 1 +P 2 If PUSCH-1 402 has a higher priority, PUSCH-1 402 will be allocated P 1 And PUSCH-2 406 will be allocated

[0057] Due to potential overlap between different power control blocks, the phrase "maximum allowed power" has been used instead of a constant value (e.g., P max ). PUSCH-3 310 from Figure 3 The formation of the power control block is removed. Figure 5 5 is a diagram illustrating a next power control chunk according to an embodiment. Overlapping transmission includes PUSCH-3 510 on CC-3, PUSCH-4 512 on CC-2, and PUSCH-5 514 on CC-1, and belongs to the next chunk n+1. Figure 5 The block n+1 and Figure 3 Specifically, PUSCH-3 510 ( Figure 3 PUSCH-3 310) in the time domain Figure 3 The PUSCH-1 302 portion overlaps.

[0058] The priority rules of different blocks are in time order. Therefore, the power P of PUSCH-1302 is used in the overlapping time area. 1The first approach is to reduce the maximum allowed power in the overlap region to maintain a constant maximum power P at each moment. max . Figure 6 is a diagram showing a method according to an embodiment of the present invention. Figure 5 The resulting maximum allowed power in the power control block n+1 is not constant.

[0059] As about Figure 6 As shown, applying such a dynamic maximum allowed power may be challenging for the UE. Another embodiment discards the previous power control block (e.g., Figure 5 In an additional embodiment, the gNB ensures that no overlapping power control chunks occur.

[0060] The power sharing method for DC can be classified into semi-static power sharing (SPS) or dynamic power sharing (DPS).

[0061] For SPS, the UE uses the maximum total power P CG The power control of CA determines the transmission power within each CG, where the maximum total power P CG It is determined while possibly taking into account semi-static transmission information in other CGs.

[0062] For DPS, the power determination for transmissions in one CG is determined by taking into account possible overlapping dynamically scheduled uplink transmissions in one or more other CGs.

[0063] With DPS, the UE takes into account overlapping transmissions that are dynamically scheduled on other CCs.DPS must define a timeline for determining which DCIs should be considered.

[0064] "Look-ahead" generally refers to the behavior of a UE to determine aspects of signal / channel transmissions at a given transmission opportunity by taking into account subsequent transmissions.

[0065] For the forward-looking power sharing scheme for NN-DC, the transmission power of UL transmission in MCG is determined according to the CA power control rule independent of SCG. 0 For UL transmission on the SCG starting at the offset (T 0 -T offset ) and schedules an overlapping UL PUSCH transmission on the MCG. If such a PDCCH is present, the UE determines an UL PUSCH transmission on the SCG with the following maximum allowed SCG power: the maximum allowed SCG power is the smaller of the maximum SCG power and the total NN-DC power minus the actual transmission power of the MCG (i.e., ). If there is no such PDCCH, the UE determines the UL transmission on the SCG with the following maximum allowed power: the maximum allowed power is the total NN-DC power UE does not expect 0 -T offset The PDCCH scheduled for MCG UL PUSCH transmission received later overlaps with the SCG transmission.

[0066] For DPS with lookahead, the total power of MCG is P MCG , the total power P of SCG SCG and the total power across all CGs is provided to the UE.

[0067] Figure 7 is a diagram showing a DPS with look-ahead according to an embodiment. Figure 7 In the embodiment, two CCs (CC-0, CC-1) are configured in the SCG, and three CCs (CC-2, CC-3, CC-4) are configured in the MCG. PUSCH-1 702 on CC-0 of the SCG is scheduled by DCI-1 on PDCCH 704 on CC-0. PUSCH-2 706 on CC-1 of the SCG is scheduled by DCI-2 on PDCCH 708 on CC-1. PUSCH-3 710 on CC-2 of the MCG is scheduled by DCI-3 on PDCCH 712 on CC-2. PUSCH-4 714 on CC-3 of the MCG is scheduled by DCI-4 on PDCCH 716 on CC-3. PUSCH-5 718 on CC-4 of the MCG is scheduled by DCI-5 on PDCCH 720 on CC-4.

[0068] The power determination of the MCG is performed independently of the SCG. Power P3 is determined for PUSCH-3 710, power P4 is determined for PUSCH-4 714, and power P5 is determined for PUSCH-5 718. To determine the power of the SCG at time T 0 The power of the earliest PUSCH (i.e., PUSCH-2 706) at the beginning, the UE considers the overlap with PUSCH-2 706 in the MCG and the power of the earliest PUSCH (i.e., PUSCH-2 706) at the beginning, and ... 0 -T offset All PUSCHs (ie, PUSCH-4 714 and PUSCH-5 718) that have previously been scheduled for the PDCCH are received. 0 -T offsetAfter that, the PDCCH 712 for PUSCH-3 710 is received, and therefore no overlapping transmission with PUSCH-2 706 is scheduled. The total consumed power in the MCG (i.e., P 4 +P 5 ) and pass the obtained results to SCG. Available power The maximum SCG power used to calculate the power of PUSCH-2 706.

[0069] Therefore, the time offset T offset must be determined and may be based in part on the PUSCH preparation time T proc，2 .

[0070] In one embodiment, to determine the power of the SCG transmission opportunity, the timing offset is set large enough so that the UE is provided with sufficient time to decode the PDCCH of the scheduling on the MCG and the overlapping PUSCH transmission on the MCG. Sufficient time can be provided for decoding the scheduling DCI on the SCG and preparing for the SCG transmission. Uplink transmission on the MCG may be included or not included depending on the UE implementation.

[0071] According to an embodiment, T offset The value of corresponds to the above-mentioned PUSCH preparation time, and μ corresponds to an SCS configuration among the SCS configuration of the PDCCH for scheduling overlapping PUSCH transmission on the MCG, the SCS configuration of the PDCCH for scheduling SCG PUSCH transmission opportunity, and the SCS configuration of the SCG PUSCH transmission opportunity.

[0072] More specifically, in order to determine the offset μ, providing the following input: serving cell Uplink transmission opportunity in the SCG on the serving cell The PDCCH for uplink transmission in the SCG; the set of serving cells in the MCG Such that there is at least one DCI on each cell, wherein the at least one DCI schedules an uplink transmission on the MCG cell that overlaps in time with an SCG transmission opportunity.

[0073] Set as a neighborhood The effective bandwidth part (BWP) of Set as a neighborhood The effective BWP of m is initially set to 1, and at the same time m<M, Set as a neighborhood The effective BWP.

[0074] Accordingly,

[0075] Therefore, return to the reference Figure 7 For PUSCH-2 706 in the above embodiment, μ is determined as μ=min(μ 0 , μ 1 , μ 2 , μ 4 ).

[0076] In another embodiment, T offset The value of PUSCH preparation time T as mentioned above proc，2 Correspondingly, μ corresponds to the SCS configuration of the PDCCH for scheduling overlapping PUSCH transmission in MCG, the SCS configuration of the scheduled overlapping PUSCH transmission in MCG, the SCS configuration of the PDCCH for scheduling SCG PUSCH transmission timing, and the minimum SCS configuration among the SCS configurations for SCG PUSCH transmission timing.

[0077] More specifically, in order to determine the offset μ, providing the following input: serving cell Uplink transmission opportunity in the SCG on the serving cell PDCCH for uplink transmission in SCG; serving cell set in MCG so that there is at least one DCI on each cell, wherein the at least one DCI schedules an uplink transmission on the MCG cell that overlaps with the SCG transmission opportunity in time; the serving cell set in the MCG Each of the at least one M DCIs is caused to schedule uplink transmission on a cell in the M MCG cells, wherein the MCG uplink transmission overlaps with the SCG transmission opportunity in time.

[0078] Set as a neighborhood The effective BWP. Set as a neighborhood The effective bandwidth part (BWP) of m is set equal to 1, and at the same time m<M, Set as a neighborhood A valid BWP, and Set as a neighborhood The effective BWP.

[0079] Accordingly,

[0080] Return to reference Figure 7 According to this embodiment, for PUSCH-2 706, μ is determined as μ=min(μ0 , μ 1 , μ 2 , μ 4 , μ 3 ).

[0081] In the above embodiment, the cell Can be used with The UL cell and the DL cell may be the same or different cells. The cells may be the same cell or may not be the same cell. Specifically, the actual number of different cells in these M cells may be less than M. Similarly, the cells They may be the same, or may not be the same. Specifically, the actual number of different cells in these 2M cells may be less than 2M.

[0082] Configured grant transmissions on the MCG that overlap with SCG PUSCH transmission opportunities can also be used to calculate the total power in the SCG.

[0083] The set of transmissions on the MCG that overlap with the SCG PUSCH transmissions includes both dynamically scheduled transmissions and semi-statically scheduled (configured grant) transmissions. The actual power of all these MCG transmissions is calculated and passed to the SCG to calculate the power of the SCG transmissions.

[0084] Now refer to Figure 8 , the diagram illustrates dynamic power sharing with configured granted transmissions according to an embodiment. PUSCH-1 802 on CC-0 of the SCG is scheduled by DCI-1 on PDCCH 804 on CC-0. PUSCH-2 806 on CC-1 of the SCG is scheduled by DCI-2 on PDCCH 808 on CC-0. PUSCH-3 810 on CC-2 of the MCG is scheduled by DCI-3 on PDCCH 812 on CC-2. PUSCH-4 814 on CC-3 of the MCG is scheduled by DCI-4 on PDCCH 816 on CC-2. PUSCH-5 818 on CC-4 of the MCG is scheduled by DCI-5 on PDCCH 820 on CC-4.

[0085] PUSCH-2 806 and PUSCH-4 814 are cross-carrier scheduled. Specifically, PDCCH-2 808 and PUSCH-2 806 are transmitted on different CCs, and PDCCH-4 816 and PUSCH-4 814 are transmitted on different CCs.

[0086] For PUSCH-2 806, from The powers P4, P5 and the configured power P6 of the authorized transmission 822 are subtracted.

[0087] Now refer to Fig. 9 , the flow chart illustrates a method for providing dynamic power sharing at a UE according to an embodiment. At 902, uplink transmission is configured. For example, DCI may be received on the PDCCH to schedule transmission on the PUSCH. At 904, an offset is determined from a starting symbol of the uplink transmission. In an embodiment, an offset is determined for each CC in one or more CCs. Each offset is based on a PDCCH decoding time and a PUSCH preparation time on a corresponding CC. A maximum offset is selected from the determined offsets. In another embodiment, a single offset is determined. As described in more detail above, a single offset is determined based on a minimum SCS selected from a group of SCSs.

[0088] At 906, based on the offset, a group of overlapping uplink transmissions on one or more CCs is defined. The group includes scheduled transmissions. At 908, total power is shared between uplink transmissions in the group of overlapping uplink transmissions. In an embodiment, individual powers are allocated to each PUSCH transmission from the total power based on a priority order. When insufficient power remains for a PUSCH transmission, the power used for the transmission is reduced or the transmission is discarded. In another embodiment, power is allocated to PUSCH transmissions in the MCG and the remaining power is allocated to scheduled transmissions in the SCG.

[0089] Now refer to Fig.10 , a flow chart illustrating a method for defining a group of overlapping uplink transmissions according to an embodiment. Fig.10 yes Fig. 9 Detailed description of 906 of . At 1002, one or more uplink transmissions on one or more CCs are grouped. The first uplink transmission and the last uplink transmission overlap with at least one other uplink transmission in the group, and the uplink transmission between the first uplink transmission and the last uplink transmission overlaps with at least two other uplink transmissions in the group. At 1004, uplink transmissions with corresponding DCI received on each PDCCH within an offset from a start symbol of the scheduled uplink transmission are removed from the group. In an embodiment, the offset may correspond to a CC with each PDCCH. At 1006, a group of overlapping uplink transmissions is defined using the remaining uplink transmissions in the grouped one or more uplink transmissions.

[0090] Reference Fig. 9 and Fig.10 , look-ahead can be used to reduce the chances of reducing / cutting down the uplink transmission power in the middle of a transmission. This can be used to enhance system performance and further optimize the power control process in NR.

[0091] Fig.11 is a block diagram showing an electronic device in a network environment according to one embodiment. Fig.11 , the electronic device 1101 in the network environment 1100 may communicate with the electronic device 1102 via a first network 1198 (e.g., a short-range wireless communication network), or communicate with the electronic device 1104 or the server 1108 via a second network 1199 (e.g., a long-range wireless communication network). The electronic device 1101 may communicate with the electronic device 1104 via the server 1108. The electronic device 1101 may include a processor 1120, a memory 1130, an input device 1150, a sound output device 1155, a display device 1160, an audio module 1170, a sensor module 1176, an interface 1177, a haptic module 1179, a camera module 1180, a power management module 1188, a battery 1189, a communication module 1190, a user identification module (SIM) 1196, or an antenna module 1197. In one embodiment, at least one of the components (e.g., display device 1160 or camera module 1180) may be omitted from electronic device 1101, or one or more other components may be added to electronic device 1101. Some of the components may be implemented as a single integrated circuit (IC). For example, sensor module 1176 (e.g., fingerprint sensor, iris sensor, or illumination sensor) may be embedded in display device 1160 (e.g., display).

[0092] The processor 1120 may run, for example, software (e.g., program 1140) to control at least one other component (e.g., hardware component or software component) of the electronic device 1101 connected to the processor 1120, and may perform various data processing or calculations. As at least part of the data processing or calculation, the processor 1120 may load a command or data received from another component (e.g., sensor module 1176 or communication module 1190) into the volatile memory 1132, process the command or data stored in the volatile memory 1132, and store the resultant data in the non-volatile memory 1134. The processor 1120 may include a main processor 1121 (e.g., a central processing unit (CPU) or an application processor (AP)) and an auxiliary processor 1123 (e.g., a graphics processing unit (GPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is independent of or combined with the main processor 1121 in operation. Additionally or alternatively, the auxiliary processor 1123 may be adapted to consume less power than the main processor 1121, or to run a specific function. The auxiliary processor 1123 may be implemented separately from the main processor 1121, or as part of the main processor 1121.

[0093] When the main processor 1121 is in an inactive (e.g., sleep) state, the auxiliary processor 1123 (rather than the main processor 1121) may control at least some of the functions or states related to at least one component (e.g., display device 1160, sensor module 1176, or communication module 1190) among the components of the electronic device 1101, or when the main processor 1121 is in an active state (e.g., running an application), the auxiliary processor 1123 may control at least some of the functions or states related to at least one component (e.g., display device 1160, sensor module 1176, or communication module 1190) together with the main processor 1121. The auxiliary processor 1123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., camera module 1180 or communication module 1190) that is functionally related to the auxiliary processor 1123.

[0094] The memory 1130 may store various data used by at least one component of the electronic device 1101 (e.g., the processor 1120 or the sensor module 1176). The various data may include, for example, software (e.g., the program 1140) and input data or output data for commands related thereto. The memory 1130 may include a volatile memory 1132 or a non-volatile memory 1134.

[0095] The program 1140 may be stored as software in the memory 1130 , and may include, for example, an operating system (OS) 1142 , middleware 1144 , or an application 1146 .

[0096] The input device 1150 may receive commands or data to be used by other components (eg, the processor 1120) of the electronic device 1101 from outside the electronic device 1101 (eg, a user). The input device 1150 may include, for example, a microphone, a mouse, or a keyboard.

[0097] The sound output device 1155 can output sound signals to the outside of the electronic device 1101. The sound output device 1155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as playing multimedia or recording, and the receiver can be used to receive incoming calls. The receiver can be implemented as a part of the speaker or as a separate speaker.

[0098] The display device 1160 may visually provide information to the outside (e.g., user) of the electronic device 1101. The display device 1160 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the projector. The display device 1160 may include a touch circuit adapted to detect a touch or a sensor circuit (e.g., a pressure sensor) adapted to measure the strength of a force caused by a touch.

[0099] The audio module 1170 can convert sound into an electrical signal and vice versa. The audio module 1170 can obtain sound via the input device 1150 or output sound via the sound output device 1155 or an earphone of an external electronic device 1102 directly (eg, wired) or wirelessly coupled to the electronic device 1101.

[0100] The sensor module 1176 may detect an operating state (e.g., power or temperature) of the electronic device 1101 or an environmental state (e.g., a user's state) outside the electronic device 1101, and then generate an electrical signal or data value corresponding to the detected state. The sensor module 1176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0101] The interface 1177 may support one or more designated protocols to be used to connect the electronic device 1101 directly (e.g., wired) or wirelessly with the external electronic device 1102. The interface 1177 may include, for example, a high-definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.

[0102] The connection terminal 1178 may include a connector via which the electronic device 1101 can be physically connected to the external electronic device 1102. The connection terminal 1178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

[0103] The haptic module 1179 may convert the electrical signal into mechanical stimulation (eg, vibration or motion) or electrical stimulation that can be recognized by the user via tactile or kinesthetic sense. The haptic module 1179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0104] The camera module 1180 may capture still images or moving images. The camera module 1180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0105] The power management module 1188 may manage power supplied to the electronic device 1101. The power management module 1188 may be implemented as, for example, at least a portion of a power management integrated circuit (PMIC).

[0106] The battery 1189 may power at least one component of the electronic device 1101. The battery 1189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0107] The communication module 1190 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 1101 and an external electronic device (e.g., electronic device 1102, electronic device 1104, or server 1108), and perform communication via the established communication channel. The communication module 1190 may include one or more communication processors that can operate independently of the processor 1120 (e.g., AP) and support direct (e.g., wired) communication or wireless communication. The communication module 1190 may include a wireless communication module 1192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 1194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules may communicate via a first network 1198 (e.g., a short-range communication network such as Bluetooth). TM , Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA) standards) or a second network 1199 (e.g., a long-distance communication network such as a cellular network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN)))) to communicate with an external electronic device. These various types of communication modules may be implemented as a single component (e.g., a single IC), or may be implemented as multiple components separated from each other (e.g., multiple ICs). The wireless communication module 1192 may identify and authenticate the electronic device 1101 in a communication network (such as the first network 1198 or the second network 1199) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 1196.

[0108] The antenna module 1197 may transmit or receive a signal or power to or from the outside of the electronic device 1101 (e.g., an external electronic device). The antenna module 1197 may include one or more antennas, and thus, at least one antenna suitable for a communication scheme used in a communication network (such as the first network 1198 or the second network 1199) may be selected from the one or more antennas by, for example, the communication module 1190 (e.g., the wireless communication module 1192). A signal or power may then be transmitted or received between the communication module 1190 and the external electronic device via the selected at least one antenna.

[0109] At least some of the above components may be connected to each other via an inter-peripheral communication scheme (e.g., a bus, a general purpose input output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)) and communicatively transmit signals (e.g., commands or data) therebetween.

[0110] A command or data may be sent or received between the electronic device 1101 and the external electronic device 1104 via the server 1108 connected to the second network 1199. Each of the electronic device 1102 and the electronic device 1104 may be a device of the same type as the electronic device 1101, or a device of a different type from the electronic device 1101. All or some operations to be run on the electronic device 1101 may be run on one or more of the external electronic devices 1102, 1104, or the server 1108. For example, if the electronic device 1101 should automatically perform a function or service or should perform a function or service in response to a request from a user or another device, the electronic device 1101 may request the one or more external electronic devices to perform at least part of the function or service instead of running the function or service, or the electronic device 1101 may request the one or more external electronic devices to perform at least part of the function or service in addition to running the function or service. The one or more external electronic devices that receive the request may execute the requested at least part of the function or service, or execute another function or another service related to the request, and transmit the result of the execution to the electronic device 1101. The electronic device 1101 may provide the result as at least a partial reply to the request with or without further processing the result. To this end, for example, cloud computing technology, distributed computing technology, or client-server computing technology may be used.

[0111] One embodiment may be implemented as software (e.g., program 1140) including one or more instructions stored in a storage medium (e.g., internal memory 1136 or external memory 1138) that can be read by a machine (e.g., electronic device 1101). For example, under the control of a processor, the processor of the electronic device 1101 may call at least one of the one or more instructions stored in the storage medium and execute the at least one instruction with or without the use of one or more other components. Thus, the machine is operable to perform at least one function according to at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be run by an interpreter. A machine-readable storage medium may be provided in the form of a non-transitory storage medium. The term "non-transitory" indicates that the storage medium is a tangible device and does not include a signal (e.g., an electromagnetic wave), but the term does not distinguish between data being semi-permanently stored in a storage medium and data being temporarily stored in a storage medium.

[0112] According to one embodiment, the method of the present disclosure may be included and provided in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be released in the form of a machine-readable storage medium (e.g., a compact disk read-only memory (CD-ROM)), or may be downloaded via an application store (e.g., PlayStore). TM ) The computer program product may be published (e.g., downloaded or uploaded) online, or the computer program product may be distributed (e.g., downloaded or uploaded) directly between two user devices (e.g., smart phones). If published online, at least part of the computer program product may be temporarily generated, or at least part of the computer program product may be at least temporarily stored in a machine-readable storage medium (such as a memory of a manufacturer's server, an application store's server, or a forwarding server).

[0113] According to one embodiment, each component (e.g., module or program) in the above-mentioned components may include a single entity or multiple entities. One or more components in the above-mentioned components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may still perform the one or more functions of each component in the multiple components in the same or similar manner as a corresponding component in the multiple components before integration. The operations performed by a module, program or another component may be performed sequentially, in parallel, repeatedly or in a heuristic manner, or one or more operations in the operations may be run or omitted in different orders, or one or more other operations may be added.

[0114] Although specific embodiments of the present disclosure have been described in the detailed description of the present disclosure, the present disclosure may be modified in various forms without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be determined based solely on the described embodiments, but rather on the appended claims and their equivalents.

Claims

1. A method for providing dynamic power sharing on a user equipment UE, the method comprising: configuring a first uplink transmission; determining an offset from a starting symbol of a first uplink transmission; Based on the offset, defining a group of overlapping uplink transmissions on one or more component carriers CC, wherein the group of overlapping uplink transmissions includes at least the first uplink transmission; and sharing total power among uplink transmissions in said group of overlapping uplink transmissions, wherein the first uplink transmission is on a CC of a secondary cell group SCG, and other uplink transmissions except the first uplink transmission in the group of overlapping uplink transmissions are each on a CC of a primary cell group MCG, Wherein, the step of sharing total power between uplink transmissions in the group of overlapping uplink transmissions comprises: determining power used by each of the other uplink transmissions in the group of overlapping uplink transmissions; and Remaining power is allocated from the total power to the first uplink transmission.

2. The method of claim 1, wherein: The step of determining the offset comprises: determining one or more offsets, wherein each of the one or more offsets is determined for a respective CC of the one or more CCs; and The offset is defined as a maximum offset among the one or more offsets.

3. The method of claim 2, wherein: Each of the one or more offsets is based on a physical downlink control channel (PDCCH) decoding time and a physical uplink shared channel (PUSCH) preparation time of the respective CCs.

4. The method of claim 2, wherein: When the total power is shared in the priority order of the uplink transmissions in the group of overlapping uplink transmissions, the step of sharing the total power comprises: determining said priority order of uplink transmissions in said group of overlapping uplink transmissions; allocating respective powers from the total power to each uplink transmission in the group of overlapping uplink transmissions in the priority order; When remaining power in the total power is insufficient for a given uplink transmission in the group of overlapping uplink transmissions, reducing power for the given uplink transmission based on the remaining power in the total power; and When the power for the given uplink transmission is reduced to zero, the given uplink transmission is dropped.

5. The method of claim 2, wherein: The steps to share the total power include: determining whether the first uplink transmission overlaps in time with a previous group of overlapping uplink transmissions; and When a first uplink transmission overlaps with the previous group of overlapping uplink transmissions, the total power is reduced by an amount of power allocated to the previous group in the overlapping time region.

6. The method of claim 1, wherein: The step of determining the offset comprises determining the offset as a PUSCH preparation time based on a subcarrier spacing SCS.

7. The method of claim 6, wherein: The SCS is a minimum SCS of at least the following SCSs: the SCS of the first PDCCH scheduling the first uplink transmission, the SCS of the first uplink transmission, and the SCS of the PDCCH scheduling the uplink transmission overlapping with the first uplink transmission on the MCG.

8. The method of claim 7, wherein: The SCS is also the minimum SCS among the SCSs of uplink transmissions on the MCG that overlap with the first uplink transmission.

9. The method according to claim 1 or 6, wherein: The steps of defining a group of overlapping uplink transmissions include: grouping one or more uplink transmissions on the one or more CCs, wherein a first uplink transmission and a last uplink transmission of the one or more uplink transmissions overlap with at least one other uplink transmission of the one or more uplink transmissions, and each uplink transmission between the first uplink transmission and the last uplink transmission of the one or more uplink transmissions overlaps with at least two other uplink transmissions of the one or more uplink transmissions, wherein the first uplink transmission has an earliest start symbol and the last uplink transmission has a last end symbol; removing, from the group of the one or more uplink transmissions, uplink transmissions having corresponding DCIs received on respective PDCCHs within the offset from a starting symbol of a first uplink transmission; and The group of overlapping uplink transmissions is defined using remaining uplink transmissions of the grouped one or more uplink transmissions excluding the removed uplink transmission.

10. The method of claim 1, wherein: The steps to share the total power also include: determining whether a configured grant transmission in the MCG overlaps with the first uplink transmission; and Power is allocated from the total power to the configured granted transmissions before allocating the remaining power to the first uplink transmission.

11. A user equipment UE, comprising: processor; as well as A non-transitory computer-readable storage medium storing instructions, wherein the instructions, when executed, cause a processor to perform the following operations: configuring a first uplink transmission; determining an offset from a starting symbol of a first uplink transmission; Based on the offset, defining a group of overlapping uplink transmissions on one or more component carriers CC, wherein the group of overlapping uplink transmissions includes at least the first uplink transmission; and sharing total power among uplink transmissions in said group of overlapping uplink transmissions, wherein the first uplink transmission is on a CC of a secondary cell group SCG, and other uplink transmissions except the first uplink transmission in the group of overlapping uplink transmissions are each on a CC of a primary cell group MCG, Wherein, when total power is shared between transmissions in the group of overlapping uplink transmissions, the instructions further cause the processor to: determining power used by each of the other uplink transmissions in the group of overlapping uplink transmissions; and Remaining power is allocated from the total power to the first uplink transmission.

12. The UE according to claim 11, wherein: In determining the offset, the instructions further cause the processor to: determining one or more offsets, wherein each of the one or more offsets is determined for a respective CC of the one or more CCs; and The offset is defined as a maximum offset among the one or more offsets.

13. The UE according to claim 12, wherein: When sharing the total power in order of priority of uplink transmissions in the group of overlapping uplink transmissions, the instructions further cause the processor to: determining said priority order of uplink transmissions in said group of overlapping uplink transmissions; allocating respective powers from the total power to each uplink transmission in the group of overlapping uplink transmissions in the priority order; When remaining power in the total power is insufficient for a given uplink transmission in the group of overlapping uplink transmissions, reducing power for the given uplink transmission based on the remaining power in the total power; and When the power for the given uplink transmission is reduced to zero, the given uplink transmission is dropped.

14. The UE according to claim 11, wherein: In determining the offset, the instructions further cause the processor to: The offset is determined as a physical uplink shared channel (PUSCH) preparation time based on a subcarrier spacing (SCS).

15. The UE according to claim 14, wherein: The SCS is a minimum SCS of at least the following SCSs: the SCS of the first physical downlink control channel PDCCH scheduling the first uplink transmission, the SCS of the first uplink transmission, and the SCS of the PDCCH scheduling uplink transmission overlapping with the first uplink transmission on the MCG.

16. The UE according to claim 15, wherein: The SCS is also the minimum SCS among the SCSs of uplink transmissions on the MCG that overlap with the first uplink transmission.

17. The UE according to claim 12 or 14, wherein: In defining the group of overlapping uplink transmissions, the instructions further cause the processor to: grouping one or more uplink transmissions on the one or more CCs, wherein a first uplink transmission and a last uplink transmission of the one or more uplink transmissions overlap with at least one other uplink transmission of the one or more uplink transmissions, and each uplink transmission between the first uplink transmission and the last uplink transmission of the one or more uplink transmissions overlaps with at least two other uplink transmissions of the one or more uplink transmissions, wherein the first uplink transmission has an earliest start symbol and the last uplink transmission has a last end symbol; removing, from the group of the one or more uplink transmissions, uplink transmissions having corresponding DCIs received on respective PDCCHs within the offset from a starting symbol of a first uplink transmission; and The group of overlapping uplink transmissions is defined using remaining uplink transmissions of the grouped one or more uplink transmissions excluding the removed uplink transmission.

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