WO2013065426A1 - Station mobile, système de communication, procédé de communication et circuit intégré - Google Patents

Station mobile, système de communication, procédé de communication et circuit intégré Download PDF

Info

Publication number
WO2013065426A1
WO2013065426A1 PCT/JP2012/074747 JP2012074747W WO2013065426A1 WO 2013065426 A1 WO2013065426 A1 WO 2013065426A1 JP 2012074747 W JP2012074747 W JP 2012074747W WO 2013065426 A1 WO2013065426 A1 WO 2013065426A1
Authority
WO
WIPO (PCT)
Prior art keywords
station apparatus
transmission power
path loss
unit
mobile station
Prior art date
Application number
PCT/JP2012/074747
Other languages
English (en)
Japanese (ja)
Inventor
中嶋　大一郎
渉 大内
翔一 鈴木
公彦 今村
Original Assignee
シャープ株式会社
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.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2013065426A1 publication Critical patent/WO2013065426A1/fr

Links

Images

Classifications

    • 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
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365—Power headroom reporting
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • 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 third generation partnership project (3rd Generation Generation) is the evolution of wireless access systems and wireless networks for cellular mobile communications (hereinafter referred to as “Long Term Evolution (LTE)” or “Evolved Universal Terrestrial Radio Access (EUTRA)”).
  • LTE Long Term Evolution
  • EUTRA Evolved Universal Terrestrial Radio Access
  • 3GPP 3rd Generation Partnership Project
  • SC-FDMA Single-carrier-Frequency-Division-Multiple-Access
  • uplink called UL
  • the DFT-Spread OFDM Discrete Fourier Transform-Spread OFDM
  • Uplink control information is control information (reception acknowledgment; ACK / NACK) indicating an acknowledgment (Acknowledgement: ACK) or a negative response (Negative Acknowledgement: NACK) for the data arranged in the received physical downlink shared channel, Alternatively, it is control information (Scheduling Request: SR) indicating a request for uplink resource allocation, or control information (Channel Quality Indicator: CQI) indicating downlink reception quality (also referred to as channel quality).
  • SR reception acknowledgment
  • NACK negative response
  • CQI Channel Quality Indicator
  • the base station apparatus When the mobile station apparatus decides to perform power headroom transmission and a resource used for uplink signal transmission is allocated by the base station apparatus, the base station apparatus includes information on the power headroom in the uplink signal. Send to. When the mobile station apparatus transmits information related to the power headroom, the periodical PHR-Timer and prohibitPHR-Timer being measured are once reset and restarted.
  • a path loss calculation unit that calculates a plurality of path losses based on the first reference signal and the second reference signal received by the first reception processing unit, The transmission power for the physical uplink control channel is set using any one of the plurality of path losses calculated by the path loss calculation unit, and the physical uplink link is set using any one of the path losses.
  • the base station apparatus can efficiently control transmission of uplink signals to the mobile station apparatus.
  • different cells may be configured by different base station devices 3 with respect to a plurality of cells used for cooperative communication, or different cells may be managed by the same base station device 3.
  • the different RRH4 may be configured, and the different cell may be configured by the base station apparatus 3 and the RRH4 managed by the base station apparatus 3 different from the base station apparatus.
  • the plurality of cells are physically used as different cells, but may be logically used as the same cell. Specifically, a configuration in which a common cell identifier (physical cell ID: Physical cell ID) is used for each cell may be used.
  • a configuration in which a plurality of transmitting apparatuses (base station apparatus 3 and RRH 4) transmit a common signal to the same receiving apparatus using the same frequency band is called a single frequency network (SFN).
  • SFN single frequency network
  • PDSCH is a physical channel used for transmission / reception of downlink data and control information.
  • the PDCCH is a physical channel used for transmission / reception of downlink control information.
  • PUSCH is a physical channel used for transmission / reception of uplink data and control information.
  • the PUCCH is a physical channel used for transmission / reception of uplink control information (uplink control information; Uplink Control Information: UCI).
  • UCI Uplink Control Information
  • UCI Uplink Control Information
  • the mobile station device 5 uses the CSI-RS to receive each received power (received signal) of the different RRH4. Power, reception quality) and respective propagation path states can be calculated individually.
  • the configuration of CSI-RS (CSI-RS-Config-r10) is notified from the base station device 3 and RRH 4 to the mobile station device 5.
  • the configuration of the CSI-RS includes information indicating the number of antenna ports set in the CSI-RS (antennaPortsCount-r10), information indicating a downlink subframe in which the CSI-RS is arranged (subframeConfig-r10), CSI-RS Information (ResourceConfig-r10) indicating a frequency region where the RS is arranged is included at least. For example, any one of 1, 2, 4, and 8 is used as the number of antenna ports.
  • the mobile station apparatus 5 receives RS (CRS or CSI-RS) transmitted by both the base station apparatus 3 and the RRH 4, measures the path loss from the signal obtained by combining both signals, and calculates the measured path loss. You may make it use for the setting of the transmission power of the signal of an uplink.
  • the signal receiving destination is the base station apparatus 3 or RRH4, it is possible to set transmission power suitable to some extent. In this way, by setting the transmission power suitable for the signal receiving destination, it is possible to improve the efficiency of the communication system while suppressing the interference given to other signals while satisfying the required quality of the signal. .
  • PUCCH format 1a BPSK (binary phase shift keying; Binary Shift Keying) is used as a modulation scheme for modulating information on ACK / NACK.
  • PUCCH format 1a 1-bit information is indicated from the modulated signal.
  • DM ⁇ RS When the DM ⁇ RS is arranged in the same UL PRB as the PUSCH, it is arranged in the fourth SC-FDMA symbol in the uplink slot.
  • DM RS When DM RS is arranged in the same UL PRB as PUCCH including ACK / NACK, DM RS is arranged in the third, fourth and fifth SC-FDMA symbols in the uplink slot.
  • DM RS is arranged in the same UL PRB as PUCCH including SR, DM RS is arranged in the third, fourth and fifth SC-FDMA symbols in the uplink slot.
  • DM RS When DM RS is arranged in the same UL PRB as PUCCH including CQI, it is arranged in the second and sixth SC-FDMA symbols in the uplink slot.
  • the SRS is arranged in the UL-PRB determined by the base station apparatus 3 and is the 14th SC-FDMA symbol in the uplink subframe (the 7th SC-FDMA symbol in the 2nd uplink slot of the uplink subframe). ).
  • the SRS can be arranged only in an uplink subframe (survey reference signal subframe; referred to as SRSSsubframe) having a period determined by the base station apparatus 3 in the cell.
  • SRSSsubframe service reference signal subframe
  • the base station device 3 assigns a UL PRB to be assigned to the SRS, a period for transmitting the SRS for each mobile station device 5.
  • FIG. 12 shows the case where the PUCCH is arranged in the UL PRB at the end in the frequency region of the uplink system band, but the UL PRB such as the second and third from the end of the uplink system band is used for the PUCCH. May be.
  • the base station apparatus 3 sets CSI-RSs corresponding to different antenna ports as path loss references for the PUCCH transmission power control and the PUSCH transmission power control for the mobile station apparatus 5. For example, the base station apparatus 3 sets different CSI-RSs as path loss references for the PUCCH transmission power control and the PUSCH transmission power control for the mobile station apparatus 5. For example, the base station apparatus 3 sets the same path loss reference for the PUCCH transmission power control and the PUSCH transmission power control for the mobile station apparatus 5. For example, the base station apparatus 3 sets the same CRS as the path loss reference for the PUCCH transmission power control and the PUSCH transmission power control for the mobile station apparatus 5.
  • the mobile station device 5 when the path loss reference of path loss used for PUSCH transmission power control is switched from CRS to CSI-RS, the mobile station device 5 enters a power headroom transmission standby state. For example, when the path loss reference of path loss used for PUSCH transmission power control is switched from CSI-RS to CRS, the mobile station apparatus 5 enters a power headroom transmission standby state.
  • CRS When CRS is set in the mobile station apparatus 5 as a path loss reference for PUSCH transmission power control, if the amount of change in path loss measured from the CRS is larger than the value of dl-PathlossChange 1, the power based on the CRS The headroom enters a transmission standby state.
  • dl-PathlossChange 3 is used for threshold determination with the amount of change in path loss measured from CSI-RS.
  • the radio resource control unit 103 assigns a CSI-RS, assigns resources to the PDCCH, assigns resources to the PUCCH, assigns DL PRB to the PDSCH, assigns ULUPRB to the PUSCH, assigns resources to the PRACH, and assigns resources to the SRS.
  • the modulation scheme, coding rate, transmission power control value, phase rotation amount (weighting value) used for precoding processing, etc. are set for various channels.
  • the radio resource control unit 103 sets parameters (periodicPHR-Timer, prohibitPHR-Timer, dl-PathlossChange) related to power headroom reporting.
  • Control channel processing unit 203 Downlink pilot channel processing unit 205, precoding processing unit 231, multiplexing unit 207, IFFT (Inverse Fast Fourier Transform) unit 209, GI (Guard Interval) Insertion unit 211, D / A (Digital / Analog converter) unit 213, transmission RF (Radio Frequency) unit 215, And configured to include a transmitting antenna 111. Since each physical downlink shared channel processing unit 201 and each physical downlink control channel processing unit 203 have the same configuration and function, only one of them will be described as a representative. For simplification of explanation, it is assumed that the transmission antenna 111 is a collection of a plurality of antenna ports.
  • the downlink pilot channel processing unit 205 generates a downlink reference signal (CRS, UE specific RS, CSI-RS) that is a known signal in the mobile station apparatus 5 and outputs the downlink reference signal to the precoding processing unit 231.
  • the precoding processing unit 231 does not perform precoding processing on the CRS and CSI-RS input from the downlink pilot channel processing unit 205 and outputs them to the multiplexing unit 207.
  • the precoding processing unit 231 performs precoding processing for the UE specific RS received from the downlink pilot channel processing unit 205 and outputs the result to the multiplexing unit 207.
  • the IFFT unit 209 performs fast inverse Fourier transform on the signal multiplexed by the multiplexing unit 207, performs OFDM modulation, and outputs the result to the GI insertion unit 211.
  • the GI insertion unit 211 generates a baseband digital signal including symbols in the OFDM scheme by adding a guard interval to the signal modulated by the OFDM scheme by the IFFT unit 209. As is well known, the guard interval is generated by duplicating a part of the head or tail of the OFDM symbol to be transmitted.
  • the GI insertion unit 211 outputs the generated baseband digital signal to the D / A unit 213.
  • the subcarrier demapping unit 315 separates the signal demodulated by the FFT unit 313 into DM-RS, SRS, PUSCH signal, and PUCCH signal based on the control signal input from the control unit 105.
  • the subcarrier demapping section 315 outputs the separated DM RS to the propagation path estimation section 317, outputs the separated SRS to the SRS processing section 333, and sends the separated PUSCH signal to the PUSCH propagation path equalization section 319.
  • the separated PUCCH signal is output to the PUCCH channel equalization unit 321.
  • the IDFT unit 323 performs discrete inverse Fourier transform on the signal input from the PUSCH channel equalization unit 319 and outputs the result to the data demodulation unit 325.
  • the data demodulating unit 325 demodulates the PUSCH signal converted by the IDFT unit 323, and outputs the demodulated PUSCH signal to the turbo decoding unit 327.
  • This demodulation is demodulation corresponding to the modulation method used in the data modulation unit of the mobile station apparatus 5, and the modulation method is input from the control unit 105.
  • the turbo decoding unit 327 decodes information data from the PUSCH signal input from the data demodulation unit 325 and demodulated.
  • the coding rate is input from the control unit 105.
  • the physical uplink control channel detection unit 329 demodulates and decodes the signal input from the PUCCH channel equalization unit 321 and detects UCI.
  • the physical uplink control channel detection unit 329 performs processing for separating the frequency domain and / or the signal code-multiplexed in the frequency domain.
  • the physical uplink control channel detection unit 329 detects ACK / NACK, SR, CQI from the PUCCH signal code-multiplexed in the frequency domain and / or time domain using the code sequence used on the transmission side. Perform processing.
  • Information indicating path loss reference used for transmission power control of PUSCH information indicating path loss reference used for transmission power control of PUCCH, information indicating values of some parameters related to transmission power of PUSCH, transmission power of PUCCH It includes information indicating the values of some parameters related to.
  • the transmission power setting unit 4053 includes a path loss input from the path loss calculation unit 4051, a coefficient to be multiplied by the path loss, a parameter based on the number of UL PRBs allocated to the SRS, cell-specific information previously notified from the base station apparatus 3 and RRH4, And a parameter specific to the mobile station apparatus, an offset previously notified from the base station apparatus 3 and RRH4, a parameter based on a transmission power control command notified from the base station apparatus 3 and RRH4, and the like.
  • the transmission power setting unit 4053 sets transmission power for the DM RS similar to that of the physical channel in which the DM RS is arranged.
  • a plurality of parameters related to power headroom reporting are set for the power headroom control unit 4055. Parameters are set independently for power headroom reporting using path loss based on CRS and power headroom reporting using path loss based on CSI-RS. In the power headroom control unit 4055, different dl-PathlossChanges are set for different path loss references. The power headroom control unit 4055 determines a trigger for the power headroom reporting process using different dl-PathlossChanges for different path loss references. The power headroom control unit 4055 performs a threshold determination between the dl-PathlossChange and the path loss change amount for the path loss measured from the path loss reference corresponding to the dl-Pathloss Change.
  • parameters related to transmission power cell-specific and mobile station device-specific parameters, a coefficient to be multiplied by the path loss, and an offset used for the SRS are notified from the base station device 3 using the PDSCH, and the transmission power A control command is notified from the base station apparatus 3 using PDCCH. Other parameters are calculated from the received signal or calculated and set based on other information.
  • the transmission power control command for PUSCH is included in the uplink grant, and the transmission power control command for PUCCH is included in the downlink assignment.
  • the control unit 405 controls the PUCCH signal configuration according to the type of UCI to be transmitted, and controls the PUCCH signal configuration used by the transmission power setting unit 4053.
  • Various parameters related to transmission power notified from the base station apparatus 3 are appropriately stored in the radio resource control unit 403, and the stored values are input to the transmission power setting unit 4053 and the power headroom generation unit 4057. .
  • the radio resource control unit 403 stores and holds the control information generated by the radio resource control unit 103 of the base station device 3 and notified from the base station device 3, and receives the reception processing unit 401 via the control unit 405.
  • the transmission processing unit 407 is controlled. That is, the radio resource control unit 403 has a memory function for holding various parameters.
  • the radio resource control unit 403 holds parameters related to transmission power of PUSCH, PUCCH, and SRS, and uses the parameters notified from the base station apparatus 3 in the transmission power setting unit 4053 and the power headroom generation unit 4057.
  • the control signal is output to the control unit 405.
  • the radio resource control unit 403 holds information on the type of downlink reference signal used for path loss measurement, and the reception quality used for path loss calculation from the type of downlink reference signal notified from the base station apparatus 3 and RRH 4
  • a control signal is output to the control unit 405 so as to measure (RSRP).
  • the radio resource control unit 403 holds information indicating a path loss reference used for PUSCH transmission power control, and the base station apparatus 3 performs transmission power setting unit 4053, power headroom control unit 4055, and power headroom generation unit 4057.
  • a control signal is output to the control unit 405 so that the notified path loss reference path loss is used for PUSCH.
  • the demultiplexing unit 511 separates the signal demodulated by the FFT unit 509 into a PDCCH signal and a PDSCH signal based on the control signal input from the control unit 405.
  • the demultiplexing unit 511 outputs the separated PDSCH signal to the PDSCH propagation path compensation unit 515 and outputs the separated PDCCH signal to the PDCCH propagation path compensation unit 519.
  • the demultiplexing unit 511 demultiplexes the downlink resource element in which the downlink pilot channel is arranged, and outputs the downlink reference signal (CRS, UE specific RS) of the downlink pilot channel to the propagation path estimation unit 513.
  • CRS downlink reference signal
  • the demultiplexing unit 511 outputs the downlink reference signals (CRS, CSI-RS) of the downlink pilot channel to the downlink reception quality measuring unit 531.
  • the demultiplexing unit 511 outputs the PDCCH signal to the PDCC channel compensation unit 519, and outputs the PDSCH signal to the PDSCH channel compensation unit 515.
  • the PDCCH channel compensation unit 519 adjusts the amplitude and phase of the PDCCH signal separated by the demultiplexing unit 511 according to the channel compensation value input from the channel estimation unit 513. For example, the PDCCH channel compensation unit 519 adjusts the PDCCH signal according to the channel compensation value generated based on the CRS by the channel estimation unit 513 and transmits the PDCCH (E -PDCCH) is adjusted according to the propagation path compensation value generated based on UE specific SP by the propagation path estimation unit 513. PDCCH propagation path compensation section 519 outputs the adjusted signal to QPSK demodulation section 527 of physical downlink control channel decoding section 521.
  • the channel compensation unit 519 for PDCCH uses a channel estimation unit 513 for a signal of PDCCH (including E-PDCCH) transmitted without using cooperative communication (without applying precoding processing). It is also possible to adjust according to the propagation path compensation value generated based on UE specific RS.
  • the mobile station apparatus 5 performs a process of detecting DCI addressed to itself for the PDCCH, assuming a plurality of coding rates.
  • the mobile station apparatus 5 performs a different decoding process on the PDCCH signal for each assumed coding rate, and acquires DCI included in the PDCCH in which no error was detected in the CRC code added to the PDCCH together with the DCI. To do.
  • Such a process is called blind decoding.
  • the mobile station apparatus 5 may perform blind decoding only on signals of some resources instead of performing blind decoding on signals of all resources in the downlink system band. . An area of a part of the resource where blind decoding is performed is referred to as “Search space”. Further, the mobile station apparatus 5 may perform blind decoding on different resources for each coding rate.
  • the physical uplink control channel processing unit 619 performs baseband signal processing for transmitting the UCI input from the control unit 405.
  • the UCI input to the physical uplink control channel processing unit 619 is ACK / NACK, SR, and CQI.
  • the physical uplink control channel processing unit 619 performs baseband signal processing and outputs the generated signal to the subcarrier mapping unit 621.
  • the physical uplink control channel processing unit 619 encodes UCI information bits to generate a signal.
  • the mobile station apparatus 5 calculates a plurality of path losses based on the CRS (first reference signal) and the CSI-RS (second reference signal).
  • the transmission power for the PUSCH is set using any one of the path losses
  • the transmission power for the PUCCH is set using any one of the plurality of path losses, and assigned for the PUSCH. If the first type of report is generated using the resource bandwidth and the path loss used for setting the transmission power of the PUSCH, and the path loss reference used for setting the transmission power for the PUSCH is reset, the power It is determined that the headroom reporting process is started, and the path loss reference used for setting the transmission power for the PUCCH is reset.
  • the mobile station device 5 is not limited to a mobile terminal, and the present invention may be realized by implementing the function of the mobile station device 5 in a fixed terminal.
  • the mobile station device 5 using the integrated circuit of the present invention calculates a plurality of path losses based on the CRS (first reference signal) and the CSI-RS (second reference signal).
  • the transmission power for the PUSCH is set using any one of the path losses
  • the transmission power for the PUCCH is set using any one of the plurality of path losses, which is allocated for the PUSCH. If the first type of report is generated using the resource bandwidth and the path loss used for setting the transmission power of the PUSCH, and the path loss reference used for setting the transmission power for the PUSCH is reset, the power It is determined that the headroom reporting process is started, and the path loss reference used for setting the transmission power for the PUCCH is reset.
  • the second embodiment of the present invention differs from the first embodiment in downlink reference signals used for measuring a plurality of path losses.
  • each of the plurality of path losses is calculated based on the CSI-RS, but each path loss is a CSI-RS corresponding to a different antenna port (first reference signal, second reference signal).
  • the mobile station apparatus 5 is designated by the base station apparatus 3 and RRH 4 as CSI-RS antenna ports (including a plurality of antenna ports) used for measuring the path loss.
  • Some CSI-RSs are transmitted only from the antenna port of the base station apparatus 3, and some CSI-RSs are transmitted only from the RRH 4.
  • the mobile station apparatus 5 sets the desired transmission power of the PUSCH using any one of the path losses calculated based on the CSI-RS of different antenna ports. For example, when the PUSCH receiving destination is the base station apparatus 3, the path loss calculated based on the CSI-RS transmitted only from the antenna port of the base station apparatus 3 is used for setting the desired transmission power of the PUSCH. When the destination of PUSCH is RRH4, the path loss calculated based on CSI-RS transmitted only from the antenna port of RRH4 is used for setting the desired transmission power of PUSCH. In the mobile station apparatus 5, any one of the path losses calculated based on the CSI-RS corresponding to different antenna ports is set for transmission power control of PUSCH. In the mobile station apparatus 5, one of CSI-RSs corresponding to different antenna ports is set as a path loss reference for path loss used for PUSCH transmission power control.
  • one of CSI-RSs having different configurations is set as a path loss reference for path loss used for PUSCH transmission power control. Note that the mobile station apparatus 5 receives the PUSCH only by instructing the base station apparatus 3 and the RRH 4 to use the path loss calculated based on the CSI-RS of the configuration to set the desired transmission power of the PUSCH. Whether the destination is the base station apparatus 3 or RRH4 does not have to be explicitly notified.
  • Different CSI-RS configurations may be applied to different RRHs 4.
  • downlink subframes in which CSI-RSs are arranged may be different.
  • the frequency regions where the CSI-RSs are arranged may be different.
  • the number of CSI-RS antenna ports may be different.
  • Information regarding the configuration of the CSI-RS for each RRH 4 to which the cooperative communication is applied is notified from the base station apparatus 3 to the mobile station apparatus 5 using RRC signaling.
  • one of CSI-RSs having different configurations is set as a path loss reference for path loss used for PUSCH transmission power control. Note that the mobile station apparatus 5 receives the PUSCH only by instructing the base station apparatus 3 and the RRH 4 to use the path loss calculated based on the CSI-RS of the configuration to set the desired transmission power of the PUSCH. Whether the destination is the first RRH4 or the second RRH4 may not be explicitly notified.
  • the program when distributing to the market, can be stored and distributed on a portable recording medium, or transferred to a server computer connected via a network such as the Internet.
  • the storage device of the server computer is also included in the present invention.
  • LSI which is typically an integrated circuit.
  • Each functional block of the mobile station device 5 and the base station device 3 may be individually chipped, or a part or all of them may be integrated into a chip.
  • the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor.
  • an integrated circuit based on the technology can also be used.
  • Each functional block of the mobile station device 5 and the base station device 3 may be realized by a plurality of circuits.
  • Information and signals can be presented using a variety of different techniques and methods. For example, chips, symbols, bits, signals, information, commands, instructions, and data that may be referred to throughout the above description may be indicated by voltage, current, electromagnetic waves, magnetic or magnetic particles, optical or light particles, or combinations thereof .
  • DSPs digital signal processors
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array signal
  • a general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
  • the processor may also be implemented as a combination of computing devices. For example, a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors connected to a DSP core, or a combination of other such configurations.
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any form of recording medium known in the art.
  • a typical recording medium may be coupled to the processor such that the processor can read information from, and write information to, the recording medium.
  • the recording medium may be integral to the processor.
  • the processor and the recording medium may be in the ASIC.
  • the ASIC can be in the mobile station device (user terminal). Or a processor and a recording medium may exist in the mobile station apparatus 5 as a discrete element.
  • Base station apparatus 4 (A to C) RRH 5 (A to C) Mobile station apparatus 101 Reception processing unit 103 Radio resource control unit 105 Control unit 107 Transmission processing unit 109 Reception antenna 111 Transmission antenna 201, 201-1 to 201-M Physical downlink shared channel processing units 203 and 203 ⁇ 1 to 203-M Physical downlink control channel processing unit 205 Downlink pilot channel processing unit 207 Multiplexing unit 209 IFFT unit 211 GI insertion unit 213 D / A unit 215 Transmission RF unit 219 Turbo coding unit 221 Data modulation unit 223 Convolutional code Unit 225 QPSK modulation unit 227 precoding processing unit (for PDCCH) 229 Precoding processing unit (for PDSCH) 231 Precoding processing unit (for downlink pilot channel) 301 reception RF section 303 A / D section 309 symbol timing detection section 311 GI removal section 313 FFT section 315 subcarrier demapping section 317 propagation path estimation section 319 propagation path equalization section (for PUSCH) 321

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Afin de permettre une régulation efficace de la transmission de signaux montants, l'invention concerne un système de communication qui est muni : d'une unité de définition de puissance de transmission qui définit la puissance de transmission d'un canal de commande de liaison montante physique (PUCCH) à l'aide de l'un des affaiblissements de propagation d'une pluralité d'affaiblissements de propagation calculés sur la base d'un premier signal de référence et d'un second signal de référence, et qui définit la puissance de transmission d'un canal partagé de liaison montante physique (PUSCH) au moyen de l'un des affaiblissements de propagation ; d'une unité de génération de marge de puissance qui génère un rapport de marge de puissance d'un premier type pour la transmission du PUSCH ; et d'une unité de régulation de marge de puissance qui régule le processus de remise de rapport de marge de puissance. Ladite unité de régulation de marge de puissance décide que le processus de remise de rapport de marge de puissance doit être lancé si l'affaiblissement de propagation servant à définir la puissance de transmission du PUSCH a été redéfini, et ne décide pas que le processus de remise de rapport de marge de puissance doit être lancé si l'affaiblissement de propagation servant à définir la puissance de transmission du PUCCH a été redéfini.
PCT/JP2012/074747 2011-11-01 2012-09-26 Station mobile, système de communication, procédé de communication et circuit intégré WO2013065426A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011239895 2011-11-01
JP2011-239895 2011-11-01

Publications (1)

Publication Number Publication Date
WO2013065426A1 true WO2013065426A1 (fr) 2013-05-10

Family

ID=48191784

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/074747 WO2013065426A1 (fr) 2011-11-01 2012-09-26 Station mobile, système de communication, procédé de communication et circuit intégré

Country Status (2)

Country Link
JP (1) JP2013118619A (fr)
WO (1) WO2013065426A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112913201A (zh) * 2018-08-17 2021-06-04 株式会社Ntt都科摩 用户终端以及无线通信方法
CN114503497A (zh) * 2019-10-02 2022-05-13 Lg电子株式会社 在无线通信系统中发送和接收探测参考信号的方法和装置
CN114616853A (zh) * 2019-08-23 2022-06-10 株式会社Ntt都科摩 终端以及无线通信方法
CN114846858A (zh) * 2019-10-17 2022-08-02 株式会社Ntt都科摩 终端以及无线通信方法
WO2022190377A1 (fr) * 2021-03-12 2022-09-15 株式会社Ｎｔｔドコモ Terminal, système de communication sans fil et procédé de communication sans fil
WO2023221807A1 (fr) * 2022-05-16 2023-11-23 Mediatek Inc. Commande de puissance de répéteurs et communication à trajets multiples

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6234726B2 (ja) 2013-07-29 2017-11-22 株式会社Ｎｔｔドコモ 基地局、ユーザ端末及び無線通信方法
US9264963B2 (en) 2013-08-21 2016-02-16 Intel Corporation User equipment and method for enhanced uplink power control
KR20180018421A (ko) * 2016-08-10 2018-02-21 아서스테크 컴퓨터 인코포레이션 무선 통신 시스템에서 빔 동작에 대한 경로 손실 도출을 위한 방법 및 장치
WO2018117207A1 (fr) 2016-12-21 2018-06-28 株式会社Ｎｔｔドコモ Équipement d'utilisateur et procédé de communication radio
EP3636011B1 (fr) 2017-06-16 2022-03-30 Huawei Technologies Co., Ltd. Procédés et systèmes de régulation de puissance pour des transmissions de liaison montante
JP6918152B2 (ja) * 2017-06-16 2021-08-11 テレフオンアクチーボラゲット エルエム エリクソン（パブル） 複数の参照信号に基づくアップリンク電力制御

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011043572A2 (fr) * 2009-10-09 2011-04-14 Samsung Electronics Co., Ltd. Procédés pour rapport de marge de sécurité de puissance, attribution de ressources et régulation de puissance
US20110243016A1 (en) * 2010-04-06 2011-10-06 Yuanyuan Zhang Method for performing power headroom reporting procedure and phr mac control element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011043572A2 (fr) * 2009-10-09 2011-04-14 Samsung Electronics Co., Ltd. Procédés pour rapport de marge de sécurité de puissance, attribution de ressources et régulation de puissance
US20110243016A1 (en) * 2010-04-06 2011-10-06 Yuanyuan Zhang Method for performing power headroom reporting procedure and phr mac control element

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112913201A (zh) * 2018-08-17 2021-06-04 株式会社Ntt都科摩 用户终端以及无线通信方法
CN112913201B (zh) * 2018-08-17 2024-04-02 株式会社Ntt都科摩 终端以及无线通信方法
CN114616853A (zh) * 2019-08-23 2022-06-10 株式会社Ntt都科摩 终端以及无线通信方法
CN114503497A (zh) * 2019-10-02 2022-05-13 Lg电子株式会社 在无线通信系统中发送和接收探测参考信号的方法和装置
CN114503497B (zh) * 2019-10-02 2023-11-07 Lg电子株式会社 在无线通信系统中发送和接收探测参考信号的方法和装置
CN114846858A (zh) * 2019-10-17 2022-08-02 株式会社Ntt都科摩 终端以及无线通信方法
WO2022190377A1 (fr) * 2021-03-12 2022-09-15 株式会社Ｎｔｔドコモ Terminal, système de communication sans fil et procédé de communication sans fil
WO2023221807A1 (fr) * 2022-05-16 2023-11-23 Mediatek Inc. Commande de puissance de répéteurs et communication à trajets multiples

Also Published As

Publication number Publication date
JP2013118619A (ja) 2013-06-13

Similar Documents

Publication Publication Date Title
JP6101980B2 (ja) 端末装置、基地局装置および通信方法
WO2013061716A1 (fr) Dispositif de station mobile, système de communication, procédé de communication et circuit intégré
WO2013046965A1 (fr) Dispositif de station mobile, système et procédé de communication et circuit intégré
JP5990793B2 (ja) 端末装置、基地局装置、通信方法および集積回路
JP5832914B2 (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
US9609638B2 (en) Mobile station apparatus, base station apparatus, and communication method
WO2013065426A1 (fr) Station mobile, système de communication, procédé de communication et circuit intégré
JP5843390B2 (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
US20140247796A1 (en) Terminal apparatus, communication system, base station apparatus, and communication method
JP5832913B2 (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
WO2013065670A1 (fr) Système de communication, appareil station mobile, appareil station de base, procédé de communication et circuit intégré
JP5886639B2 (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
WO2014021247A1 (fr) Dispositif formant station de base, dispositif formant station mobile, et circuit intégré
JP2014011540A (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
WO2013065425A1 (fr) Station mobile, système de communication, procédé de communication et circuit intégré
JP5957732B2 (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
JP5868717B2 (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
WO2013065424A1 (fr) Station mobile, système de communication, procédé de communication et circuit intégré
JP2013192142A (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
JP2013255136A (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
JP2013102320A (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
JP2013192141A (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
JP2013192144A (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路
JP2013123138A (ja) 通信システム、移動局装置、基地局装置、通信方法および集積回路

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12845730

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12845730

Country of ref document: EP

Kind code of ref document: A1