WO2015069013A1 - 상향링크 전송 전력을 제어하는 방법과 그 장치 - Google Patents

상향링크 전송 전력을 제어하는 방법과 그 장치 Download PDF

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Publication number
WO2015069013A1
WO2015069013A1 PCT/KR2014/010565 KR2014010565W WO2015069013A1 WO 2015069013 A1 WO2015069013 A1 WO 2015069013A1 KR 2014010565 W KR2014010565 W KR 2014010565W WO 2015069013 A1 WO2015069013 A1 WO 2015069013A1
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WIPO (PCT)
Prior art keywords
cell
uplink
transmission power
transmission
base station
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PCT/KR2014/010565
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English (en)
French (fr)
Korean (ko)
Inventor
노민석
최우진
Original Assignee
주식회사 케이티
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from KR1020140088948A external-priority patent/KR101611825B1/ko
Application filed by 주식회사 케이티 filed Critical 주식회사 케이티
Priority to US15/027,002 priority Critical patent/US9713094B2/en
Priority to CN201480054086.4A priority patent/CN105594263B/zh
Priority to CN201910949779.4A priority patent/CN110677905B/zh
Publication of WO2015069013A1 publication Critical patent/WO2015069013A1/ko
Priority to US15/617,137 priority patent/US10178626B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

Definitions

  • the present invention relates to a method and apparatus for controlling uplink transmission power, and more particularly, to a method and apparatus for allocating transmission power in transmitting uplink to two or more cells.
  • LTE Long Term Evolution
  • LTE-Advanced of the current 3GPP series are high-speed and large-capacity communication systems that can transmit and receive various data such as video and wireless data out of voice-oriented services.
  • the development of technology capable of transferring large amounts of data is required.
  • deployments such as a plurality of cells or small cells are introduced, there is a need for a technique and a method for enabling carrier aggregation to be applicable in various deployment scenarios. In particular, when performing uplink transmission in a plurality of cells, a technique for controlling transmission power is required.
  • the present invention provides a technique for controlling the transmission power when the terminal performs uplink transmission to two or more cells and two or more base stations.
  • PUCCH Physical Uplink Control CHannel
  • uplink transmission transmitted by the UE in uplink It provides a method and apparatus for controlling the power of the.
  • a method for controlling uplink transmission power by a terminal includes transmitting the uplink control channel and / or to transmit one or more uplink control channels and / or one or more uplink data channels in two or more cells. Allocating a transmission power of the uplink data channel, and transmitting the uplink control channel and / or the uplink data channel to one or more base stations according to the allocated transmission power.
  • a method for controlling uplink transmission power of a terminal includes: transmitting, by the RRC configuration parameter, indication information indicating simultaneous transmission of uplink control information from two or more cells to the terminal; Receiving from the terminal at least one uplink control channel and / or at least one uplink data channel whose transmission power is controlled according to the indication information.
  • Terminal for controlling the uplink transmission power according to another embodiment of the present invention to receive a downlink from the base station, to transmit one or more uplink control channel and / or one or more uplink data channel in two or more cells
  • the base station for controlling the uplink transmission power of the terminal according to another embodiment of the present invention, a transmitter for transmitting the indication information indicating the simultaneous transmission of the uplink control information in two or more cells to the terminal as an RRC configuration parameter, the indication And a receiver for receiving at least one uplink control channel and / or at least one uplink data channel whose transmission power is controlled according to the information from the terminal, and a controller for controlling the transmitter and the receiver.
  • transmission power may be controlled when uplink transmission is performed in two or more cells.
  • a method and apparatus for controlling the power of uplink transmission transmitted by the UE in uplink when considering simultaneous transmission of PUCCH and transmission of PUCCH in different serving cells from two or more cells to the same base station and different base stations To provide.
  • FIG. 1 is a diagram illustrating small cell deployment according to an embodiment.
  • FIG. 2 is a diagram illustrating a small cell deployment scenario.
  • 3 to 6 show detailed scenarios in small cell deployment.
  • FIG. 7 is a diagram illustrating various scenarios of carrier aggregation.
  • FIG. 8 is a diagram illustrating a detailed method 1 according to an embodiment of the present invention.
  • FIG. 9 is a diagram illustrating a detailed method 2 according to another embodiment of the present invention.
  • FIG. 10 is a diagram illustrating a detailed method 3 according to another embodiment of the present invention.
  • FIG. 11 is a diagram illustrating a detailed method A according to another embodiment of the present invention.
  • FIG. 12 is a diagram illustrating a detailed method B according to another embodiment of the present invention.
  • FIG. 13 is a view showing uplink transmission according to another embodiment of the present invention.
  • FIG. 14 is a diagram illustrating a process of controlling power of uplink transmission in a terminal according to an embodiment of the present invention.
  • 15 is a diagram illustrating a process of receiving an uplink signal transmitted by controlling transmission power at a base station according to an embodiment of the present invention.
  • 16 is a diagram showing the configuration of a user terminal according to another embodiment of the present invention.
  • 17 is a diagram illustrating a configuration of a base station according to another embodiment.
  • the wireless communication system in the present invention is widely deployed to provide various communication services such as voice, packet data, and the like.
  • the wireless communication system includes a user equipment (UE) and a base station (base station, BS, or eNB).
  • a user terminal is a generic concept meaning a terminal in wireless communication.
  • user equipment (UE) in WCDMA, LTE, and HSPA, as well as mobile station (MS) in GSM, user terminal (UT), and SS It should be interpreted as a concept that includes a subscriber station, a wireless device, and the like.
  • the user terminal may be abbreviated as a terminal.
  • the user terminal may be referred to as a terminal for short.
  • a base station or a cell generally refers to a station that communicates with a user terminal, and includes a Node-B, an evolved Node-B, an Sector, a Site, and a BTS.
  • Other terms such as a base transceiver system, an access point, a relay node, a remote radio head (RRH), a radio unit (RU), and a small cell may be called.
  • RRH remote radio head
  • RU radio unit
  • a base station or a cell is a generic meaning indicating some areas or functions covered by a base station controller (BSC) in CDMA, a Node-B in WCDMA, an eNB or a sector (site) in LTE, and the like. It should be interpreted as, and it is meant to cover all the various coverage areas such as megacell, macrocell, microcell, picocell, femtocell and relay node, RRH, RU, small cell communication range.
  • BSC base station controller
  • the base station may be interpreted in two senses. i) the device providing the megacell, the macrocell, the microcell, the picocell, the femtocell, the small cell in relation to the wireless area, or ii) the wireless area itself. In i) all devices which provide a given wireless area are controlled by the same entity or interact with each other to cooperatively configure the wireless area to direct the base station.
  • the base station may indicate the radio area itself to receive or transmit a signal from a viewpoint of a user terminal or a neighboring base station.
  • megacells macrocells, microcells, picocells, femtocells, small cells, RRHs, antennas, RUs, low power nodes (LPNs), points, eNBs, transmit / receive points, transmit points, and receive points are collectively referred to as base stations. do.
  • the user terminal and the base station are two transmitting and receiving entities used to implement the technology or technical idea described in this specification in a comprehensive sense and are not limited by the terms or words specifically referred to.
  • the user terminal and the base station are two types of uplink or downlink transmitting / receiving subjects used to implement the technology or the technical idea described in the present invention, and are used in a generic sense and are not limited by the terms or words specifically referred to.
  • the uplink (Uplink, UL, or uplink) refers to a method for transmitting and receiving data to the base station by the user terminal
  • the downlink (Downlink, DL, or downlink) means to transmit and receive data to the user terminal by the base station It means the way.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • OFDM-FDMA OFDM-TDMA
  • OFDM-CDMA OFDM-CDMA
  • One embodiment of the present invention can be applied to resource allocation in the fields of asynchronous wireless communication evolving to LTE and LTE-Advanced through GSM, WCDMA, HSPA, and synchronous wireless communication evolving to CDMA, CDMA-2000 and UMB.
  • the present invention should not be construed as being limited or limited to a specific wireless communication field, but should be construed as including all technical fields to which the spirit of the present invention can be applied.
  • the uplink transmission and the downlink transmission may use a time division duplex (TDD) scheme that is transmitted using different times, or may use a frequency division duplex (FDD) scheme that is transmitted using different frequencies.
  • TDD time division duplex
  • FDD frequency division duplex
  • a standard is configured by configuring uplink and downlink based on one carrier or a pair of carriers.
  • the uplink and the downlink include a Physical Downlink Control CHannel (PDCCH), a Physical Control Format Indicator CHannel (PCFICH), a Physical Hybrid ARQ Indicator CHannel (PHICH), a Physical Uplink Control CHannel (PUCCH), an Enhanced Physical Downlink Control CHannel (EPDCCH), and the like.
  • Control information is transmitted through the same control channel, and data is configured by a data channel such as a physical downlink shared channel (PDSCH) and a physical uplink shared channel (PUSCH).
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared channel
  • control information may also be transmitted using an enhanced PDCCH (EPDCCH or extended PDCCH).
  • EPDCCH enhanced PDCCH
  • extended PDCCH extended PDCCH
  • a cell means a component carrier having a coverage of a signal transmitted from a transmission / reception point or a signal transmitted from a transmission point or a transmission / reception point, and the transmission / reception point itself. Can be.
  • a wireless communication system to which embodiments are applied may be a coordinated multi-point transmission / reception system (CoMP system) or a coordinated multi-antenna transmission scheme in which two or more transmission / reception points cooperate to transmit a signal.
  • antenna transmission system a cooperative multi-cell communication system.
  • the CoMP system may include at least two multiple transmission / reception points and terminals.
  • the multiple transmit / receive point is at least one having a base station or a macro cell (hereinafter referred to as an eNB) and a high transmission power or a low transmission power in a macro cell region, which is wired controlled by an optical cable or an optical fiber to the eNB. May be RRH.
  • an eNB a base station or a macro cell
  • a high transmission power or a low transmission power in a macro cell region which is wired controlled by an optical cable or an optical fiber to the eNB. May be RRH.
  • the transmission power may mean a transmission power or a power value, and may be described by being represented by P, which means power.
  • downlink refers to a communication or communication path from a multiple transmission / reception point to a terminal
  • uplink refers to a communication or communication path from a terminal to multiple transmission / reception points.
  • a transmitter may be part of multiple transmission / reception points, and a receiver may be part of a terminal.
  • a transmitter may be part of a terminal, and a receiver may be part of multiple transmission / reception points.
  • a situation in which a signal is transmitted and received through a channel such as a PUCCH, a PUSCH, a PDCCH, an EPDCCH, and a PDSCH may be expressed in the form of 'sending and receiving a PUCCH, a PUSCH, a PDCCH, an EPDCCH, and a PDSCH.
  • a description of transmitting or receiving a PDCCH or transmitting or receiving a signal through the PDCCH may be used as a meaning including transmitting or receiving an EPDCCH or transmitting or receiving a signal through the EPDCCH.
  • the physical downlink control channel described below may mean PDCCH or EPDCCH, and may also be used to include both PDCCH and EPDCCH.
  • the EPDCCH which is an embodiment of the present invention, may be applied to the portion described as the PDCCH, and the EPDCCH may be applied to the portion described as the EPDCCH as an embodiment of the present invention.
  • high layer signaling described below includes RRC signaling for transmitting RRC information including an RRC parameter.
  • An eNB which is an embodiment of a base station, performs downlink transmission to terminals.
  • the eNB includes downlink control information and uplink data channels (eg, a physical downlink shared channel (PDSCH), which is a primary physical channel for unicast transmission, and scheduling required for reception of the PDSCH).
  • a physical downlink control channel (PDCCH) for transmitting scheduling grant information for transmission on a physical uplink shared channel (PUSCH) may be transmitted.
  • PUSCH physical uplink shared channel
  • Low power nodes represent nodes that use lower transmit (Tx) power than typical macro nodes.
  • CA Carrier Aggregation
  • the macro cell and the RRH cell are constructed to be scheduled under the control of one base station.
  • an ideal backhaul is required between the macro cell node and the RRH.
  • An ideal backhaul means a backhaul that exhibits very high throughput and very low latency, such as optical fiber, dedicated point-to-point connections using LOS microwaves (Line Of Sight microwave).
  • non-ideal backhaul backhaul that exhibits relatively low throughput and large delay, such as digital subscriber line (xDSL) and Non LOS microwaves.
  • the plurality of serving cells may be merged through the single base station-based carrier merging technique described above to provide a service to the terminal. That is, a plurality of serving cells may be configured for a UE in a radio resource control (hereinafter referred to as 'RRC') CONNECTED state, and when an ideal backhaul is established between the macro cell node and the RRH, the macro cell And the RRH cell may be configured with serving cells to provide a service to the terminal.
  • 'RRC' radio resource control
  • the terminal may have only one RRC connection with the network.
  • one serving cell is a Non-Access Stratum (hereinafter referred to as 'NAS') mobility information (e.g., TAI: Tracking Area Identity) and one serving cell provides security input in RRC connection reset / handover.
  • 'NAS' Non-Access Stratum
  • TAI Tracking Area Identity
  • Pcell primary cell
  • Scells Secondary Cells
  • Scells may be configured as Serving Cells together with Pcells according to UE capabilities.
  • the present invention provides a joint operation between FDD and TDD to a UE belonging to a corresponding base station when a small cell and an arbitrary cell / base station / RRH / antenna / RU support different duplexes, that is, FDD and TDD in a multi-layer cell structure.
  • An operation method and apparatus of a terminal for enabling an operation), a base station method using the method, and an apparatus thereof are provided.
  • each duplex mode is used in macro cell and small cell and any cell / base station / RRH / antenna / RU, and supports carrier merging and joint operation between macro cell and small cell and dual connectivity.
  • the present invention relates to a method of designating a secondary cell.
  • the terminal may communicate with one or more cells or base stations, and the terminal may perform communication by grouping one or more cells. That is, communication can be performed in various forms.
  • the above-described transmission power may mean transmission power for each of one or more cells or for each group or base station according to each communication type. In the following description, it is described as the total transmission power for convenience of understanding.
  • FIG. 1 is a diagram illustrating small cell deployment according to an embodiment.
  • FIG. 1 illustrates a configuration in which a small cell and a macro cell coexist, and in FIGS. 2 to 3 below, whether macro coverage is present and whether the small cell is for outdoor or indoor.
  • the deployment of the small cell is divided in more detail according to whether or not to use the same frequency spectrum as the macro in terms of spectrum. The detailed configuration of the scenario will be described with reference to FIGS. 2 to 6.
  • FIG. 2 is a diagram illustrating a small cell deployment scenario.
  • FIG. 2 shows a typical representative configuration for the scenario of FIGS. 3 to 6.
  • 2 illustrates a small cell deployment scenario and includes scenarios # 1, # 2a, # 2b and # 3.
  • 200 denotes a macro cell
  • 210 and 220 denote small cells.
  • the overlapping macro cell may or may not exist.
  • Coordination may be performed between the macro cell 200 and the small cells 210 and 220, and coordination may also be performed between the small cells 210 and 220.
  • the overlapped areas of 200, 210, and 220 may be bundled into clusters.
  • 3 to 6 show detailed scenarios in small cell deployment.
  • Scenario # 1 is a co-channel deployment scenario of a small cell and a macro cell in the presence of an overhead macro and is an outdoor small cell scenario.
  • 310 denotes a case where both the macro cell 311 and the small cell are outdoors, and 312 indicates a small cell cluster. Users are distributed both indoors and outdoors.
  • Solid lines connecting the small cells in the small cell 312 mean a backhaul link within a cluster.
  • the dotted lines connecting the base station of the macro cell and the small cells in the cluster mean a backhaul link between the small cell and the macro cell.
  • Scenario 2a is a deployment scenario in which the small cell and the macro use different frequency spectrums in the presence of an overlay macro and an outdoor small cell scenario. Both macro cell 411 and small cells are outdoors and 412 indicates a small cell cluster. Users are distributed both indoors and outdoors.
  • Solid lines connecting the small cells in the small cell 412 mean a backhaul link within a cluster.
  • the dotted lines connecting the base station of the macro cell and the small cells in the cluster mean a backhaul link between the small cell and the macro cell.
  • Scenario 2b is a deployment scenario in which the small cell and the macro use different frequency spectrums in the presence of an overlay macro and an indoor small cell scenario.
  • the macro cell 511 is outdoors, the small cells are all indoors, and 512 indicates a small cell cluster. Users are distributed both indoors and outdoors.
  • Solid lines connecting the small cells in the small cell 512 mean a backhaul link within a cluster.
  • the dotted lines connecting the base station of the macro cell and the small cells in the cluster mean a backhaul link between the small cell and the macro cell.
  • Scenario 3 is an indoor small cell scenario in the absence of coverage of macros. 612 indicates a small cell cluster. In addition, small cells are all indoors, and users are distributed both indoors and outdoors.
  • Solid lines connecting the small cells in the small cell 612 mean a backhaul link within a cluster.
  • the dotted lines connecting the base station of the macro cell and the small cells in the cluster mean a backhaul link between the small cell and the macro cell.
  • the frequencies F1 and F2 used in the various small cell scenarios of FIGS. 1 and 2 to 6 described above may be frequencies supporting the same duplex mode, or F1 and F2 may have different duplex modes.
  • F1 may be a frequency that supports the FDD mode
  • F2 may be a frequency that supports the TDD mode or vice versa.
  • FIG. 7 is a diagram illustrating various scenarios of carrier aggregation.
  • the corresponding F1 and F2 may be frequencies supporting the same duplex mode, or the frequencies supporting different duplex modes may be considered.
  • F1 and F2 cells are co-located and overlapped under almost the same coverage.
  • Two layers are scenarios that provide sufficient coverage and mobility, and scenarios in which aggregation between overlapped F1 and F2 cells are possible.
  • F1 and F2 cells co-locate and overlap, but the coverage of F2 is smaller than that of F1.
  • F1 has sufficient coverage, mobility support is performed based on F1 coverage, and
  • F2 is a scenario used for improving throughput, and a scenario in which overlapping F1 and F2 cells are merged is possible.
  • F1 and F2 cells co-locate, but F2 antennas are directed to the cell edge to increase cell edge throughput.
  • Mobility support is performed based on F1 coverage, where F1 has sufficient coverage but F2 is potentially a coverage hole, and F1 and F2 cells on the same eNB can be merged where coverage overlaps. That is the scenario.
  • Scenario 740 is a scenario in which F1 has macro coverage and RRH at F2 is used to improve throughput in hot spot area. Mobility support is performed based on F1 coverage and with F1 macro cell. This is a scenario in which F2 RRHs cells can be merged.
  • F1 and F2 cells in the same eNB is a scenario that can be merged where the coverage overlap.
  • the physical uplink control channel (PUCCH) used as an uplink control channel is briefly mentioned.
  • the uplink PUCCH is formatted according to the type of information sent from the terminal. The following is a description of the types of PUCCH formats and their uses.
  • the PUCCH (Physical Uplink Control Channel) used as an uplink control channel is formatted according to the type of information sent from the terminal. The following describes the types of formats for PUCCH and their uses.
  • PUCCH format 1 is a channel format for transmitting only a scheduling request.
  • PUCCH format 1a / 1b is a channel for transmitting Ack / Nack for a scheduling request and / or downlink data channel and according to format number 1a / according to the number of bits of Ack / Nack and a modulation scheme. It is divided into 1b.
  • the shortened PUCCH format 1a / 1b is a format in which the last SC-FDMA symbol of one subframe is punctured in PUCCH format 1a / 1b transmitting A / N (Ack / Nack). Whether to use the format is determined by TRUE / FALSE of "ackNackSRS-SimultaneousTransmission", which is an RRC parameter indicated by an upper layer of the base station, and cell-specific information configuration of a sounding reference signal (SRS).
  • SRS sounding reference signal
  • PUCCH format 2 is a channel format for transmitting only CQI.
  • PUCCH format 2a / 2b is a channel for transmitting "AQ / Nack for CQI + downlink data channel" and is divided into 2a / 2b according to the number of bits and modulation scheme of Ack / Nack.
  • PUCCH format 3 is a channel for transmitting Ack / Nack of 4 bits or more under downlink carrier aggregation.
  • Shortened PUCCH format 3 is a format in which the last SC-FDMA symbol of one subframe is punctured in PUCCH format 3 transmitting Ack / Nack. Whether to use the format is determined by TRUE / FALSE of "ackNackSRS-SimultaneousTransmission", which is an RRC parameter indicated by an upper layer of the base station, and the cell-specific information configuration of the SRS.
  • the sum of the total transmission power of the terminal for the terminal configured for simultaneous transmission of PUCCH and PUSCH means the maximum transmission power according to each communication type.
  • UE sets priority of power of PUCCH in determining transmission power of PUSCH for serving cell c, and scales transmission power of PUSCH to a value between 0 and 1 for the remaining transmission power.
  • UE determines the transmit power of the corresponding PUSCH.
  • Equation 1 the UE determines the transmit power of the corresponding PUSCH.
  • the UE is in a situation such as subframe i of the serving cell c. Is scaled according to Equation 1, wherein silver Is a linear value of, or a linear value of, silver Is the linear value of Is the total configured maximum output power of the UE in subframe i Is a linear value of. w (i) is for serving cell c The scaling factor of It has a value within the range of. If there is no PUCCH transmission in subframe i Becomes
  • the UE In case of exceeding, in determining transmission power between PUSCHs transmitted by different carriers or different serving cells, the UE has UCI according to whether information included in the corresponding PUSCH includes uplink control information (UCI).
  • UCI uplink control information
  • the UE By assigning PUSCH transmission power to a serving cell or component carrier that transmits a PUSCH first, scaling is performed with the same scaling factor between the remaining serving cell (s) or component carriers.
  • PUSCH transmit power is determined.
  • the scaling factor may be set to 0 for a specific serving cell (s) or component carrier.
  • Equation 2 the UE determines the transmit power of the corresponding PUSCH.
  • the UE When the UE transmits a PUSCH transmission with UCI (PUSCH) with the UCI in the serving cell j, and transmits the PUSCH without the UCI in another serving cell (PUSCH without UCI), the total transmission power of the UE is In this case, the UE in subframe i transmitting the PUSCH without UCI Is scaled to satisfy Equation 2.
  • the UE determines the transmission power of PUCCH + PUSCH with UCI transmitted from different carriers or different serving cells and PUSCHs without UCI.
  • the transmission power of the PUSCH having the UCI is set to be guaranteed, and the PUSCH transmission power is determined by performing scaling with the same scaling factor between the remaining serving cell (s) or component carriers with respect to the transmission power of the remaining UEs.
  • the scaling factor may be set to 0 for a specific serving cell (s) or component carrier.
  • Equation 3 the UE determines the transmit power of the corresponding PUSCH.
  • the UE transmits PUCCH and PUSCH with UCI at the same time in serving cell j and transmits PUSCH without UCI in another serving cell, the total transmit power of the UE is And may exceed, the terminal according to the equation (3) Can be obtained.
  • the UE determines transmission power between SRSs transmitted from different carriers or different serving cells.
  • the UE performs scaling with the same scaling factor among the serving cell (s) or component carriers to reduce the transmission power of the SRS. Will be decided.
  • the UE determines transmission power of corresponding SRSs.
  • the UE is associated with subframe I and serving cell c. Is scaled using Equation 5 as follows.
  • Is Is the linear value of the value, Is defined in subframe i Is a linear value of.
  • c Is the scaling factor of Satisfies. Has the same value in the serving cells.
  • a terminal when a terminal simultaneously transmits uplink data, a control channel, and an uplink signal to a base station under carrier aggregation, one serving cell, that is, a primary serving cell (hereinafter, referred to as 'PCell') is transmitted to the base station.
  • a primary serving cell hereinafter, referred to as 'PCell'
  • PUCCH transmission is considered, and transmission of PUCCH in a serving cell other than the PCell is not considered. Therefore, when PUCCH transmission is considered in a serving cell other than the PCell, that is, when the PUCCH is transmitted in the Pcell and the other serving cell and the simultaneous transmission of the PUCCH in different serving cells, the multiplexing method between uplink channels or Power control methods need to be newly defined and applied.
  • the present invention when PUCCH transmission in a serving cell other than the PCell is considered under a small cell environment and TDD-FDD carrier aggregation, that is, the PUCCH transmission in a serving cell different from the Pcell and in a different serving cell Considering simultaneous transmission of PUCCH, multiplexing method and transmission power control method for multiple PUCCH (s) transmitted from uplink by UE, multiplexing method and power control for simultaneous transmission of multiple PUCCH (s) and PUSCH, and multiplexing
  • the present invention relates to a multiplexing method for simultaneous transmission of a PUCCH (s) and multiple PUSCHs, a transmission power control method, and an apparatus thereof.
  • a base station configures transmission of multiple PUCCHs to different serving cells to a UE, or PUCCH to Scell
  • the multiplexing method and transmission power control method for the multiple PUCCH (s) transmitted by the UE in the uplink the multiplexing method and power control for the simultaneous transmission of the multiple PUCCH (s) and PUSCH, and multiple PUCCH
  • the present invention relates to a multiplexing method, simultaneous transmission power control method, and apparatus for simultaneous transmission of multiple PUSCHs.
  • the method for each configuration is semi-statically through a new RRC parameter.
  • the base station When the base station is configured and configured to transmit multiple PUCCHs to different serving cells or PUCCHs on Scells to the UE, simultaneous transmission of PUCCHs to different serving cells may be possible. Therefore, a multiplexing method and a power control method of PUCCHs simultaneously transmitted to different serving cells are proposed below.
  • a transmission power of PUCCHs transmitted on different cells may have a same scaling value, and a method of setting transmission power of PUCCHs transmitted in each cell may be considered.
  • the following Equation 6 may be used to perform transmission power control on different PUCCHs transmitted to the serving cell c in the i-th subframe.
  • Detailed Method 1 is a method of applying the same scaling value to the transmit power of the PUCCH transmitted in each cell.
  • a method of prioritizing the transmission power of the PUCCH for the specific PCell may be considered. This may be considered as a method of prioritizing the transmission power of a PCell, which is a specific cell among cells configured to the terminal, when the terminal transmits a PUCCH to each base station as an uplink control channel for downlink transmission transmitted from each base station. .
  • a method of prioritizing transmission power of a PUCCH in a serving cell in which PUCCH transmission as a feedback channel for different serving cells is concentrated may be considered. That is, when it is said that PUCCH is transmitted on two different cells, the PUCCH transmitted to a specific cell may be configured to transmit HARQ-ACK and / or CSI and / or SR (UCI) for multiple cells.
  • a method of prioritizing transmission power setting for a PUCCH is performed by determining the priority of power setting for the PUCCHs transmitted to different serving cells depending on the number of serving cells included in the UCIs transmitted to the PUCCHs transmitted to a specific serving cell.
  • PUCCH transmitted in the i-th subframe of the serving cell c i.e., the PCell
  • PUCCH transmitted to the other serving cell j is given priority over PUCCH transmitted to the other serving cell j using Equation 7 as follows. Transmit power control for each of the two cells, and the number of serving cells included in the UCI transmitted to the PUCCH transmitted to the serving cell c in the i-th subframe is transmitted to the PUCCH transmitted to the serving cell j. Compared to the number of serving cells included in the UCI, it may be configured to perform transmission power control on different PUCCHs in many cases.
  • equal power scaling may be performed using the same scaling value between PUCCHs as in the detailed method 1).
  • give priority to the type of feedback included in the UCI for example, HARQ-ACK or SR> RI> PMI or CQI, HARQ-ACK> SR> RI> PMI or CQI, and SR> HARQ-ACK> RI>
  • the power control may be configured to determine the priority of the transmission power control for the PUCCHs transmitted to the serving cell c and the serving cell j according to priority such as PMI or CQI.
  • Detailed Method 2 is to set the priority of the power in the case of a specific PCell configured to the terminal in allocating the transmission power of the multiple PUCCH, if the number of serving cells containing the UCI is a high priority to set the transmission power of the serving cell
  • the transmission power is given priority by setting the feedback type included in the UCI.
  • HARQ-ACK may be the most important information among UCIs transmitted on the PUCCH, it is similar to determining the power control priority of the PUCCH depending on the number of serving cells included in the UCI described in Detailed Method 2).
  • a method of prioritizing the transmission power of the PUCCH may be considered depending on the number of HARQ-ACKs to which HARQ-ACKs should be delivered. Since a PUCCH transmitted to a specific cell may be configured to transmit HARQ-ACKs for multiple cells, this is a method of prioritizing transmission power setting for the corresponding PUCCH. In other words, a method of controlling power by prioritizing power settings for PUCCHs transmitted to different serving cells depending on the number of serving cells including HARQ-ACK transmitted on the PUCCH of a specific serving cell.
  • the number of serving cells included in the HARQ-ACK transmitted to the PUCCH of the serving cell c in the i-th subframe is expressed by Equation 8 as below, and the HARQ-ACK transmitted to the PUCCH of the serving cell j is included. Compared to the number of serving cells, transmission power control for different PUCCHs may be performed in many cases.
  • the same power scaling may be performed using the same scaling value between the PUCCHs as in the detailed method 1), or the PUCCH as in the detailed method 2).
  • the PUCCH transmitted to the PCell may be set to perform transmission power control, or priority may be given to the type of feedback of the UCI that may be transmitted simultaneously with the HARQ-ACK.
  • the power control may be configured to determine the priority of the transmission power control for the PUCCHs transmitted to the serving cell c and the serving cell j according to priority such as PMI or CQI.
  • Detailed Method 3 is a method of prioritizing power setting so that transmission power is concentrated when the number of serving cells including HARQ-ACK is large.
  • the transmission power is scaled equally as described in the detailed method 1, or, in the case of the specific PCell configured in the terminal as described in the detailed method 2, the power is prioritized or the number of serving cells including the UCI.
  • the transmission power of the serving cell is given priority or the transmission power is given priority by giving priority to the type of feedback included in the UCI, or as described in the detailed method 3 including HARQ-ACK.
  • the method of prioritizing power setting has been described.
  • FIG. 8 is a diagram illustrating a detailed method 1 according to an embodiment of the present invention.
  • PUCCH is transmitted.
  • the same scaling value may be applied to transmission of these PUCCHs. That is, the scaling values applied when the PUCCHs of CC0 and CC1 of FIG. 8 are transmitted are the same.
  • FIG. 9 is a diagram illustrating a detailed method 2 according to another embodiment of the present invention.
  • PUCCH is transmitted.
  • the specific PCell configured for the UE during transmission of these PUCCHs may be set to give priority to power.
  • transmission power control may be set by allocating PUCCH transmission power transmitted to the 910, that is, the PCell, and allocating the remaining transmission power to the 920, that is, the SCell.
  • both CC0 and CC1 contain UCI.
  • the number of serving cells including UCI is two, and in the PUCCH indicated by 940, the number of serving cells including UCI is one. In this case, detailed method 2 can be applied.
  • the power of the PUCCH indicated by the 930 having a larger number of serving cells included in the UCI may be preferentially set.
  • the same power scaling may be performed by using the same scaling value, or the transmission power of a specific PCell may be prioritized, or as described above.
  • Priority may be determined according to the type of feedback included in the UCI.
  • FIG. 10 is a diagram illustrating a detailed method 3 according to another embodiment of the present invention.
  • a PUCCH including HARQ-ACK is transmitted.
  • the number of serving cells included in the HARQ-ACK is 2 in CC0 indicated by 1010, and the number of serving cells included in the HARQ-ACK is 1 in CC1 indicated by 1020.
  • the number of serving cells included in the HARQ-ACK may be preferentially set to the power of the PUCCH of CC0.
  • scaling may be performed identically by applying detailed method 1, or specific PCell configured to the terminal by applying detailed method 2
  • the priority is set, or if the number of serving cells including UCI is large, the transmission power of the serving cell is set in priority, or the transmission power is given priority by giving priority to the type of feedback included in the UCI. Can be set.
  • a transmission power of PUSCHs transmitted on different cells may have a same scaling value, and a method of setting transmission power of a PUSCH transmitted in each cell may be considered.
  • the following formula may be used to perform transmission power control on different PUSCHs transmitted to the serving cell c in the i-th subframe. That is, the transmission powers of the PUSCHs transmitted on the cells for the remaining transmission powers other than the transmission powers allocated for the multiple PUCCHs in the maximum transmission power of the terminal are set with the same scaling value to set the transmission power.
  • the UE for the serving cell c in the i-th subframe Scaling is performed such that the condition of Equation 9 below is satisfied.
  • Detailed Method A is an example of applying scaling to all transmission powers of a PUSCH.
  • the following formula may be used to perform transmission power control on different PUSCHs transmitted to the serving cell c and the serving cell j in the i-th subframe. If the UE transmits multiple PUCCHs and transmits one or multiple PUSCHs, the PUSCH transmitted to the serving cell j includes the UCI, and the PUSCH is transmitted without the UCI in the other serving cells. In this case, the transmit power of the PUSCH for the serving cell c in the i-th subframe using Equation 10 below, Allows you to set a value.
  • i subframe Is the linear value of Is the i-th subframe of the serving cell c Is the linear value of, Is the transmission power of the PUSCH including the UCI transmitted to the serving cell j. Is a linear value of. And, Is the maximum output power in the i-th subframe configured in the terminal Is a linear value of. And, W c (i) is for the serving cell c Is the scaling factor of, Same as And Z c (i) is for serving cell c Is the scaling factor of, Same as If there is no transmission of the PUCCH on the i-th subframe to be.
  • the terminal and the base station can share the indication information indicating simultaneous transmission of uplink control information in two or more cells as an RRC configuration parameter. This may be optionally performed, and the base station may be instructed or preconfigured by the base station in a manner other than the RRC configuration parameter.
  • the method D may be set to Pcell / Scell or vice versa for the first cell and the second cell, respectively, in which the master base station is the first cell and the second base station is the second cell.
  • the case where the control and the second cell is divided into a case where the master base station controls the first cell and the secondary base station controls, and such information may be set to be shared between the base station and the terminal.
  • FIG. 11 is a diagram illustrating a detailed method A according to another embodiment of the present invention.
  • the PUCCH is transmitted in CC0 (1110), and the PUSCH is transmitted in CC1 (1120). Meanwhile, the PUCCH is transmitted in the cell CCx of the SeNB (1130).
  • CCx becomes CC0 when the cell index of the SeNB is set independently of the MeNB, and CC2 when the cell index is set in association with the MeNB.
  • W c (i) of Equation 9 has the same value of W 0 (i) of CC0, W 1 (i) of CC1, and Wx (i) of CCx.
  • W c (i) of Equation 9 has the same value of W 0 (i) of CC0, W 1 (i) of CC1, and Wx (i) of CCx.
  • the transmit power of the PUCCH is first assigned, and then the transmit power of the PUSCH is allocated.
  • FIG. 12 is a diagram illustrating a detailed method B according to another embodiment of the present invention.
  • Detailed Method B is a method of first allocating transmission power of a PUSCH including control information UCI when transmitting a data channel including uplink control information and a data channel not including control information to different base stations.
  • CC0 is a PUSCH including UCI transmitted to SeNB (1210)
  • CCx is a PUSCH not including UCI transmitted to SeNB (1220). Therefore, in the case of applying Equation 10 in allocating the transmit power of the PUSCH, the remaining transmit power for the PUSCH 1220 transmitted to the remaining SeNB after allocating the transmit power of the PUSCH transmitted to the MeNB including the UCI of CC0. Allocate
  • FIG. 13 is a view showing uplink transmission according to another embodiment of the present invention.
  • CCx becomes CC0 when the cell index of the SeNB is set independently of the MeNB, and CC2 when the cell index is set in association with the MeNB.
  • FIG. 1310 shows a case where a PUCCH is transmitted. And PUCCH is transmitted in MeNB and SeNB. Since a plurality of PUCCHs are transmitted in a plurality of cells, one of detailed methods 1, 2, and 3 may be selected. That is, detailed method 1 for setting the same scaling value for each PUCCH is applied, or detailed method 2, that is, a method of setting priority of power in the case of a specific PCell configured in the terminal, or a large number of serving cells including UCI. In this case, detailed method 2 suggesting a method of setting the transmission power of the corresponding serving cell with priority or a method of setting the transmission power with priority by giving priority to the type of feedback included in the UCI can be applied. Meanwhile, when all UCIs are included on the PUCCHs of CC0 and CCx, detailed method 3 of setting transmit power of the PUCCH may be applied depending on the number of HARQ-ACKs in the UCI.
  • a PUCCH is transmitted to CC0 and a PUSCH including UCI is transmitted in CCx.
  • detailed method B may be applied.
  • the transmit power of the PUSCH of CCx is preferentially assigned to the PUSCH of CC0 and CC1.
  • method B transmit power is first allocated to CC0 and CCx including UCI.
  • Priority between CC0 and CCx including the UCI may be determined in consideration of the priorities of the PCell, the number of UCIs, or the number of HARQ-ACKs included in the UCI, as described in detail methods 2 and 3 above.
  • two or more different CCs that can be transmitted in the uplink in the operation of the terminal are configured, and multiple TAGs are not configured in the terminal and multiple TAGs are configured in the terminal. If so, they can all be considered as applicable.
  • the operation of the terminal is defined when the transmission situation of the terminal is each power limited, that is, when the total transmission power exceeds the maximum allowable transmission power (P_CMAX) of the terminal. This is to set power control or dropping for a specific channel and signal in transmission of an uplink control channel or an uplink data channel. It can be considered as a way to ensure maximum transmission. This may be a method of preventing excessive data control of the uplink control channel and the data channel, thereby preventing deterioration of the data rate for the data channel during carrier aggregation.
  • the contents proposed in the present invention may be considered even when performing dual connectivity in consideration of the small cell. In other words. It can be applied to the following scenarios.
  • the terminal when the terminal configures dual connectivity, forms an RRC connection with the terminal, terminates the base station or S1-MME providing a cell (for example, Pcell) that is the basis of handover, and mobility to the core network.
  • a base station serving as an anchor is described as a master base station or a first base station.
  • the master base station or the first base station may be a base station providing a macro cell, and may be a base station providing any one small cell in a dual connectivity situation between the small cells.
  • a base station that is distinguished from a master base station in a dual connectivity environment and provides additional radio resources to a terminal is described as a secondary base station or a second base station.
  • the first base station (master base station) and the second base station (secondary base station) may provide at least one cell to the terminal, respectively, and the first base station and the second base station may be connected through an interface between the first base station and the second base station. have.
  • a cell associated with the first base station may be referred to as a macro cell, and a cell associated with the second base station may be referred to as a small cell for clarity.
  • a cell associated with the first base station may also be described as a small cell.
  • the macro cell may mean each of at least one or more cells, and may be described as representing a whole cell associated with the first base station.
  • the small cell may also mean each of at least one or more cells, and may also be described as representing a whole cell associated with the second base station.
  • the cell may be a cell associated with the first base station.
  • the cell of the second base station may be described as another small cell or another small cell.
  • the macro cell may be associated with the master base station or the first base station
  • the small cell may be associated with the secondary base station or the second base station
  • a base station or a second base station may be associated with the macro cell, and the present invention also applies to a situation where the master base station or the first base station is associated with the small cell.
  • a method of informing the UE of the configuration may be considered. That is, by setting an RRC configuration parameter such as "simultaneous UL transmission to both MeNB and SeNB", the above-described operation and power control method of the terminal can be applied.
  • RRC configuration parameter such as "simultaneous UL transmission to both MeNB and SeNB”
  • a method of configuring various types of RRC parameters other than UL transmission in “simultaneous UL transmission to both MeNB and SeNB” may be considered.
  • UCI transmission UCI transmission
  • HARQ-ACK transmission CQI transmission, SR transmission, HARQ-ACK and CQI transmission, HARQ-ACK and SR transmission, SR and CQI transmission
  • SRS transmission HARQ-ACK and SRS
  • Each meaning may mean simultaneous transmission of each uplink channel and reference signal to different base stations from the terminal's point of view.
  • the power control method proposed in the present invention may be considered. That is, the master base station or the macro base station that establishes the RRC connection, which is the first base station, may be considered to have great importance.
  • the power control method proposed in the present invention which allocates power to the uplink control channel transmitted to the second base station with priority, may be considered.
  • the power control according to the priority of the UCI type transmitted in the uplink in combination with this.
  • PUCCH is a channel capable of transmitting HARQ-ACK, SR, and CQI, and in the case of PUSCH with UCI including UCI, it is a channel capable of transmitting HARQ-ACK, RI, CQI, PMI, and the like.
  • a method of setting power prior to performing power control over PUCCH transmitting CQI may be considered to transmit PUSCH having HARQ-ACK.
  • FIG. 14 is a diagram illustrating a process of controlling power of uplink transmission in a terminal according to an embodiment of the present invention.
  • the terminal performs uplink transmission to two or more cells.
  • the terminal receives, as an RRC configuration parameter, indication information indicating uplink simultaneous transmission in the two or more cells from the base station (S1410). This may optionally be done and may be indicated or preset in other ways than the RRC configuration parameters.
  • the transmission power of the uplink control channel and the data channel is controlled. That is, in order to transmit one or more uplink control channels and / or one or more uplink data channels in two or more cells, transmission powers of the uplink control channel and / or the uplink data channel are allocated (S1420).
  • the transmission power allocation scheme is variously applied according to the prioritization and scaling of the transmission power, and has been described in detail methods 1, 2, 3, and A, B, and D. In detail 1, the transmission power of the PUCCH of each cell is scaled.
  • the UCI type in the present specification may mean a UCI type.
  • transmit power control may be performed by applying the same scaling value.
  • the transmission power may be allocated in preference to the PUSCH of another cell. That is, when the uplink data channel to be transmitted in the first cell includes UCI in a situation in which the first cell and the second cell are configured, the terminal transmits the transmission power of the uplink data channel to the uplink data channel to be transmitted in the second cell. Assign first.
  • Scell / Scell or vice versa Scell / Pcell may be set for the first cell and the second cell, respectively, in which the master base station controls the first cell and the secondary base station controls the second cell.
  • the case may be divided into the case where the master base station controls the second cell and the case where the secondary base station controls the first cell.
  • the terminal transmits the uplink control channel and / or the uplink data channel to one or more base stations according to the allocated transmission power (S1430).
  • 15 is a diagram illustrating a process of receiving an uplink signal transmitted by controlling transmission power at a base station according to an embodiment of the present invention.
  • the base station may transmit information indicating this to the terminal so that the terminal can perform uplink transmission in two or more cells.
  • the indicating information may be an RRC configuration parameter.
  • the base station transmits, to the terminal, indication information indicating simultaneous transmission of uplink control information in two or more cells as an RRC configuration parameter (S1510), in which uplink simultaneous transmission as well as UCI transmission (UCI transmission) are performed.
  • RRC configuration parameter S1510
  • UCI transmission UCI transmission
  • HARQ-ACK transmission CQI transmission, SR transmission, HARQ-ACK and CQI transmission, HARQ-ACK and SR transmission, SR and CQI transmission, SRS transmission, HARQ-ACK and SRS transmission, and CQI and SRS transmission can do.
  • the base station receives one or more uplink control channels and / or one or more uplink data channels whose transmission power is controlled according to the indication information from the terminal (S1520).
  • the control method of the transmission power has been described in detail methods 1, 2, 3 and detailed methods A, B, and D.
  • the transmission power of the PUCCH of each cell is scaled equally.
  • the type or number of UCIs are applied so that the transmission power is preferentially allocated according to a specific PCell priority and the type or number of UCIs included in the uplink control channel or the uplink data channel.
  • the transmission power can be controlled.
  • the detailed method A in the detailed method A, in transmitting a PUSCH in a plurality of cells, at least two signals scheduled to be transmitted for the remaining power except for the transmit power of the PUCCH transmitted in the plurality of cells are transmitted.
  • the same scaling value may be applied to perform transmission power control.
  • the transmission power may be allocated in preference to the PUSCH of another cell. That is, when the uplink data channel to be transmitted in the first cell includes UCI in a situation in which the first cell and the second cell are configured, the terminal transmits the transmission power of the uplink data channel to the uplink data channel to be transmitted in the second cell. It is assigned first.
  • Scell / Scell or vice versa Scell / Pcell may be set for the first cell and the second cell, respectively, in which the master base station controls the first cell and the secondary base station controls the second cell.
  • the case may be divided into the case where the master base station controls the second cell and the case where the secondary base station controls the first cell.
  • 16 is a diagram showing the configuration of a user terminal according to another embodiment of the present invention.
  • a user terminal 1600 includes a receiver 1630, a controller 1610, and a transmitter 1620.
  • the receiver 1630 receives downlink control information, data, and a message from a base station through a corresponding channel.
  • the controller 1610 may consider the PUCCH transmission in a serving cell other than the PCell under the small cell environment and the TDD-FDD carrier aggregation necessary for carrying out the above-described present invention, that is, the PUCCH in the serving cell different from the Pcell.
  • the overall UE operation is controlled according to power control for transmission of multiple PUCCH and PUSCH according to multiple PUCCH (s) transmitted from uplink by the UE.
  • the transmitter 1620 transmits uplink control information, data, and a message to a base station through a corresponding channel.
  • the receiver 1630 receives the downlink from the base station.
  • the controller 1610 allocates transmission power of the uplink control channel and / or the uplink data channel to transmit at least one uplink control channel and / or at least one uplink data channel in two or more cells.
  • the transmitter 1620 transmits the uplink control channel and / or the uplink data channel to one or more base stations according to the allocated transmission power.
  • the controller 1610 may scale the transmit power of the PUCCH of each cell.
  • the controller 1610 is configured to preferentially allocate transmission power according to the type or number of UCIs included in the uplink control channel or the uplink data channel. Transmission power may be allocated by applying the type or number of UCIs included in the link data channel.
  • control unit 1610 is configured to scale the transmit power of the uplink control channel transmitted from the first cell to the transmit power of the uplink data channel in the first cell.
  • the uplink data channel transmit power of the first cell may be allocated within a value excluding a value scaled by a factor.
  • the controller 1610 prioritizes the transmission power of the uplink data channel to the uplink data channel to be transmitted in the second cell. Assign. That is, when the uplink data channel to be transmitted in the first cell includes UCI in a situation consisting of the first cell and the second cell, the transmission power of the uplink data channel is allocated in preference to the uplink data channel to be transmitted in the second cell. do.
  • the receiver 1610 may receive, from the base station, indication information indicating uplink simultaneous transmission in the two or more cells as an RRC configuration parameter. This may optionally be done and may be indicated or preset in other ways than the RRC configuration parameters.
  • Scell / Scell or vice versa Scell / Pcell may be set for the first cell and the second cell, respectively, in which the master base station controls the first cell and the secondary base station controls the second cell.
  • the case may be divided into the case where the master base station controls the second cell and the case where the secondary base station controls the first cell.
  • 17 is a diagram illustrating a configuration of a base station according to another embodiment.
  • a base station 1700 includes a controller 1710, a transmitter 1720, and a receiver 1730.
  • the control unit 1710 transmits the PUCCH in the serving cell different from the Pcell. And considering the simultaneous transmission of the PUCCH in different serving cells, and controls the overall operation of the base station according to the power control for the transmission of multiple PUCCH and PUSCH according to the multiple PUCCH (s) transmitted from the terminal to the uplink.
  • the transmitter 1720 and the receiver 1730 are used to transmit and receive signals, messages, and data necessary for carrying out the present invention.
  • the transmitter 1720 transmits, to the UE, indication information indicating simultaneous transmission of uplink control information in two or more cells, as an RRC configuration parameter.
  • the indicating information may be an RRC configuration parameter.
  • the base station transmits, to the terminal, indication information indicating uplink simultaneous transmission in two or more cells as an RRC configuration parameter (S1510), in which not only uplink simultaneous transmission but also UCI transmission (UCI transmission) and HARQ- It can be instructed to configure ACK transmission, CQI transmission, SR transmission, HARQ-ACK and CQI transmission, HARQ-ACK and SR transmission, SR and CQI transmission, SRS transmission, HARQ-ACK and SRS transmission, and CQI and SRS transmission.
  • S1510 RRC configuration parameter
  • the receiver 1730 receives at least one physical uplink control channel and / or at least one physical uplink shared channel from which the transmission power is controlled according to the indication information.
  • the controller 1710 controls the transmitter 1720 and the receiver 1730.
  • control method of the transmission power has been described in detail methods 1, 2, 3 and detailed methods A, B, and D.
  • the transmission power of the PUCCH of each cell is scaled.
  • the transmission power is applied to the type or number of UCIs so that the transmission power is preferentially allocated according to the type or number of UCIs included in the uplink control channel or the uplink data channel. This can be controlled.
  • a scaling value for a PUSCH of a first cell may be applied. That is, the transmission power of the uplink data channel in the first cell is a value obtained by scaling the transmission power of the uplink control channel transmitted in the first cell to the scaling factor of the first cell in the total transmission power. It can be within the value excluded.
  • the transmission power may be allocated in preference to the PUSCH of another cell. That is, when the uplink data channel to be transmitted in the first cell includes UCI, the uplink data channel may be allocated the transmission power in preference to the uplink data channel to be transmitted in the second cell.
  • Scell / Scell or vice versa Scell / Pcell may be set for the first cell and the second cell, respectively, in which the master base station controls the first cell and the secondary base station controls the second cell.
  • the case may be divided into the case where the master base station controls the second cell and the case where the secondary base station controls the first cell.

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  • Signal Processing (AREA)
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PCT/KR2014/010565 2013-11-08 2014-11-05 상향링크 전송 전력을 제어하는 방법과 그 장치 WO2015069013A1 (ko)

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US15/027,002 US9713094B2 (en) 2013-11-08 2014-11-05 Method for controlling uplink transmission power and apparatus thereof
CN201480054086.4A CN105594263B (zh) 2013-11-08 2014-11-05 用于控制上行链路传输功率的方法及其装置
CN201910949779.4A CN110677905B (zh) 2013-11-08 2014-11-05 用于控制上行链路传输功率的方法及其装置
US15/617,137 US10178626B2 (en) 2013-11-08 2017-06-08 Method for controlling uplink transmission power and apparatus thereof

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CN110708750A (zh) * 2018-07-09 2020-01-17 华为技术有限公司 一种功率调整方法、终端及存储介质

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