WO2013022260A2 - Procédé et équipement utilisateur pour la transmission d'informations de commande de liaison montante - Google Patents

Procédé et équipement utilisateur pour la transmission d'informations de commande de liaison montante Download PDF

Info

Publication number
WO2013022260A2
WO2013022260A2 PCT/KR2012/006266 KR2012006266W WO2013022260A2 WO 2013022260 A2 WO2013022260 A2 WO 2013022260A2 KR 2012006266 W KR2012006266 W KR 2012006266W WO 2013022260 A2 WO2013022260 A2 WO 2013022260A2
Authority
WO
WIPO (PCT)
Prior art keywords
bit sequence
antenna port
symbols
modulation symbols
channel
Prior art date
Application number
PCT/KR2012/006266
Other languages
English (en)
Korean (ko)
Other versions
WO2013022260A3 (fr
Inventor
한승희
손혁민
최혜영
이현우
김진민
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Publication of WO2013022260A2 publication Critical patent/WO2013022260A2/fr
Publication of WO2013022260A3 publication Critical patent/WO2013022260A3/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0026—Division using four or more dimensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing

Definitions

  • the present invention relates to a wireless communication system. Specifically, the present invention relates to a method and apparatus for transmitting / receiving uplink control information.
  • M2M machine-to-machine
  • MTC machine type communication
  • smart phones and tablet PCs that require high data transfer rates
  • CA carrier aggregation
  • cognitive radio technology etc.
  • a communication environment is evolving in the direction of increasing the density of nodes that can be accessed by the user equipment in the vicinity.
  • a node is a fixed point capable of transmitting / receiving a radio signal with a user device having one or more antennas.
  • a communication system having a high density of nodes can provide higher performance communication services to user equipment by cooperation between nodes.
  • a method and apparatus for transmitting / receiving an uplink control signal for efficient communication between a user equipment and a base station are provided.
  • the user equipment when the user equipment transmits the uplink control information of a predetermined size or more to the base station, by generating the output bit sequence by channel coding the input bit sequence corresponding to the uplink control information; And modulating the output bit sequence to produce a plurality of modulation symbols; Mapping the plurality of modulation symbols to a first antenna port and a second antenna port; A first frequency resource and a second frequency in modulation symbols (hereinafter, referred to as first modulation symbols) mapped to the first antenna port and modulation symbols (hereinafter, referred to as second modulation symbols) mapped to the second antenna port.
  • first modulation symbols A first frequency resource and a second frequency in modulation symbols
  • second modulation symbols hereinafter, referred to as second modulation symbols
  • Mapping resources respectively; Transmitting the first modulated symbols to the base station through the first frequency resource on the first antenna port and the second modulated symbols to the base station through the second frequency resource on the second antenna port.
  • a plurality of modulation symbols are mapped to the plurality of antenna ports in units of a predetermined number of consecutive modulation symbols, and the first frequency resource and the second frequency resource are orthogonal to each other.
  • a channel encoder for generating an output bit sequence by channel coding the bit sequence corresponding to the uplink control information; And a modulation mapper for modulating the output bit sequence to produce a plurality of modulation symbols.
  • a divider for mapping the plurality of modulation symbols to a first antenna port and a second antenna port; A first frequency resource and a second frequency in modulation symbols (hereinafter, referred to as first modulation symbols) mapped to the first antenna port and modulation symbols (hereinafter, referred to as second modulation symbols) mapped to the second antenna port.
  • a resource mapper that maps resources respectively;
  • the plurality of modulation symbols are mapped to the plurality of antenna ports in units of a predetermined number of consecutive modulation symbols, and wherein the first frequency resource and the second frequency resource are orthogonal to each other.
  • generating the output bit sequence comprises: dividing the input bit sequence into a first bit sequence and a second bit sequence; And channel encoding the first bit sequence and the second bit sequence, respectively, and output a second bit sequence obtained by encoding an encoded first bit sequence. And alternately connecting the encoded first bit sequence and the encoded second bit sequence.
  • dual Reed-Muller (RM) codes may be used for the channel encoding.
  • a large amount of uplink control signal can be efficiently transmitted / received.
  • FIG. 1 shows an example of a radio frame structure used in a wireless communication system.
  • FIG. 2 illustrates an example of a downlink (DL) / uplink (UL) slot structure in a wireless communication system.
  • FIG. 3 illustrates a DL subframe structure used in a 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) / LTE-A (Advanced) system.
  • 3GPP 3rd Generation Partnership Project
  • LTE Long Term Evolution
  • LTE-A Advanced
  • FIG. 4 shows an example of an uplink subframe structure used in a 3GPP LTE / LTE-A system.
  • 5 to 8 illustrate UCI transmission using a physical uplink control channel (PUCCH) format 1 series and a PUCCH format 2 series.
  • PUCCH physical uplink control channel
  • FIG. 9 illustrates a PUCCH format based on block-spreading.
  • RM Dual Reed-Muller
  • 11 is a diagram illustrating a bit sequence of uplink control information to which dual RM encoding is applied.
  • FIG. 12 shows an example of mapping a modulation symbol to a frequency domain by using a frequency switched transmit diversity (FSTD) technique.
  • FSTD frequency switched transmit diversity
  • FIG. 13 shows an example of transmission of PUCCH format 3 to which FSTD is applied.
  • FIG. 14 illustrates transmission of uplink control information to which a simple combination of dual RM encoding and FSTD scheme is applied.
  • FIG. 15 illustrates an embodiment of the present invention in which dual RM encoding and FSTD techniques are applied together to signal transmission.
  • 16 shows another embodiment of the present invention in which dual RM encoding and FSTD techniques are applied together to signal transmission.
  • FIG. 17 shows another embodiment of the present invention in which dual RM encoding and FSTD techniques are applied together to signal transmission.
  • FIG. 18 is a block diagram showing components of a transmitter 10 and a receiver 20 for carrying out the present invention.
  • FIG. 19 shows an example of a signal processing process in a transmission apparatus.
  • a user equipment may be fixed or mobile, and various devices that communicate with the BS to transmit and receive user data and / or various control information belong to the same.
  • the UE may be a terminal equipment (MS), a mobile station (MS), a mobile terminal (MT), a user terminal (UT), a subscriber station (SS), a wireless device, a personal digital assistant (PDA), or a wireless modem. It may be called a modem, a handheld device, or the like.
  • a base station generally refers to a fixed station communicating with the UE and / or another BS, and communicates with the UE and another BS to exchange various data and control information.
  • the BS may be referred to in other terms such as ABS (Advanced Base Station), NB (Node-B), eNB (evolved-NodeB), BTS (Base Transceiver System), Access Point (Access Point), and Processing Server (PS).
  • ABS Advanced Base Station
  • NB Node-B
  • eNB evolved-NodeB
  • BTS Base Transceiver System
  • Access Point Access Point
  • PS Processing Server
  • Physical Downlink Control CHannel / Physical Control Format Indicator CHannel (PCFICH) / PHICH (Physical Hybrid automatic retransmit request Indicator CHannel) / PDSCH (Physical Downlink Shared CHannel) are respectively DCI (Downlink Control Information) / CFI ( Means a set of time-frequency resources or a set of resource elements that carry downlink format ACK / ACK / NACK (ACKnowlegement / Negative ACK) / downlink data, and also a physical uplink control channel (PUCCH) / physical (PUSCH).
  • DCI Downlink Control Information
  • CFI Means a set of time-frequency resources or a set of resource elements that carry downlink format ACK / ACK / NACK (ACKnowlegement / Negative ACK) / downlink data, and also a physical uplink control channel (PUCCH) / physical (PUSCH).
  • Uplink Shared CHannel / PACH Physical Random Access CHannel refers to a set of time-frequency resources or a set of resource elements that carry uplink control information (UCI) / uplink data / random access signals, respectively.
  • Resource elements (REs) are referred to as PDCCH / PCFICH / PHICH / PDSCH / PUCCH / PUSCH / PRACH RE or PDCCH / PCFICH / PHICH / PDSCH / PUCCH / PUSCH / PRACH resources, respectively.
  • the expression that the user equipment transmits PUCCH / PUSCH / PRACH is used as the same meaning as transmitting uplink control information / uplink data / random access signal on or through the PUSCH / PUCCH / PRACH, respectively.
  • the expression that the BS transmits PDCCH / PCFICH / PHICH / PDSCH is used in the same sense as transmitting downlink data / control information on or through the PDCCH / PCFICH / PHICH / PDSCH, respectively.
  • Figure 1 illustrates an example of a radio frame structure used in a wireless communication system.
  • Figure 1 (a) shows a frame structure for frequency division duplex (FDD) used in the 3GPP LTE / LTE-A system
  • Figure 1 (b) is used in the 3GPP LTE / LTE-A system
  • the frame structure for time division duplex (TDD) is shown.
  • a radio frame used in a 3GPP LTE / LTE-A system has a length of 10 ms (307200 T s ) and consists of 10 equally sized subframes (subframes). Numbers may be assigned to 10 subframes in one radio frame.
  • Each subframe has a length of 1 ms and consists of two slots. 20 slots in one radio frame may be sequentially numbered from 0 to 19. Each slot is 0.5ms long.
  • the time for transmitting one subframe is defined as a transmission time interval (TTI).
  • the time resource may be classified by a radio frame number (also called a radio frame index), a subframe number (also called a subframe number), a slot number (or slot index), and the like.
  • the radio frame may be configured differently according to the duplex mode. For example, in the FDD mode, since downlink transmission and uplink transmission are divided by frequency, a radio frame includes only one of a downlink subframe or an uplink subframe for a specific frequency band. In the TDD mode, since downlink transmission and uplink transmission are separated by time, a radio frame includes both a downlink subframe and an uplink subframe for a specific frequency band.
  • Table 1 illustrates a DL-UL configuration of subframes in a radio frame in the TDD mode.
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe.
  • the singular subframe includes three fields of Downlink Pilot TimeSlot (DwPTS), Guard Period (GP), and Uplink Pilot TimeSlot (UpPTS).
  • DwPTS is a time interval reserved for downlink transmission
  • UpPTS is a time interval reserved for uplink transmission.
  • Table 2 illustrates the configuration of a singular frame.
  • FIG. 2 illustrates an example of a downlink / uplink (DL / UL) slot structure in a wireless communication system.
  • FIG. 2 shows a structure of a resource grid of a 3GPP LTE / LTE-A system. There is one resource grid per antenna port.
  • a slot includes a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain and a plurality of resource blocks (RBs) in a frequency domain.
  • An OFDM symbol may mean a symbol period.
  • a signal transmitted in each slot may be represented by a resource grid including N DL / UL RB * N RB sc subcarriers and N DL / UL symb OFDM symbols.
  • N DL RB represents the number of resource blocks (RBs) in the downlink slot
  • N UL RB represents the number of RBs in the UL slot.
  • N DL RB and N UL RB depend on DL transmission bandwidth and UL transmission bandwidth, respectively.
  • N DL symb represents the number of OFDM symbols in the downlink slot
  • N UL symb represents the number of OFDM symbols in the UL slot.
  • N RB sc represents the number of subcarriers constituting one RB.
  • the OFDM symbol may be called an OFDM symbol, a Single Carrier Frequency Division Multiplexing (SC-FDM) symbol, or the like according to a multiple access scheme.
  • the number of OFDM symbols included in one slot may vary depending on the channel bandwidth and the length of the cyclic prefix (CP). For example, in case of a normal CP, one slot includes 7 OFDM symbols, whereas in case of an extended CP, one slot includes 6 OFDM symbols.
  • FIG. 2 illustrates a subframe in which one slot includes 7 OFDM symbols for convenience of description, embodiments of the present invention can be applied to subframes having other numbers of OFDM symbols in the same manner. Referring to FIG.
  • each OFDM symbol includes N DL / UL RB * N RB sc subcarriers in the frequency domain.
  • the types of subcarriers may be divided into data subcarriers for data transmission, reference signal subcarriers for transmission of reference signals, null subcarriers for guard band, and direct current (DC) components.
  • the null subcarrier for the DC component is a subcarrier left unused and is mapped to a carrier frequency f 0 during an OFDM signal generation process or a frequency upconversion process.
  • the carrier frequency is also called the center frequency.
  • One RB is defined as N DL / UL symb (e.g., seven) consecutive OFDM symbols in the time domain and is defined by N RB sc (e.g., twelve) consecutive subcarriers in the frequency domain. Is defined.
  • N DL / UL symb e.g., seven
  • N RB sc e.g., twelve
  • a resource composed of one OFDM symbol and one subcarrier is called a resource element (RE) or tone. Therefore, one RB is composed of N DL / UL symb * N RB sc resource elements.
  • Each resource element in the resource grid may be uniquely defined by an index pair (k, 1) in one slot.
  • k is an index given from 0 to N DL / UL RB * N RB sc ⁇ 1 in the frequency domain
  • l is an index given from 0 to N DL / UL symb ⁇ 1 in the time domain.
  • Two RBs each occupying N RB sc consecutive subcarriers in one subframe and one located in each of two slots of the subframe, are called a physical resource block (PRB) pair.
  • Two RBs constituting a PRB pair have the same PRB number (or also referred to as a PRB index).
  • 3 illustrates a DL subframe structure used in 3GPP LTE / LTE-A system.
  • a DL subframe is divided into a control region and a data region in the time domain.
  • up to three (or four) OFDM symbols located in the first slot of a subframe correspond to a control region to which a control channel is allocated.
  • a resource region available for PDCCH transmission in a DL subframe is called a PDCCH region.
  • the remaining OFDM symbols other than the OFDM symbol (s) used as the control region correspond to a data region to which a Physical Downlink Shared CHannel (PDSCH) is allocated.
  • PDSCH Physical Downlink Shared CHannel
  • a resource region available for PDSCH transmission in a DL subframe is called a PDSCH region.
  • Examples of DL control channels used in 3GPP LTE include a physical control format indicator channel (PCFICH), a physical downlink control channel (PDCCH), a physical hybrid ARQ indicator channel (PHICH), and the like.
  • the PCFICH is transmitted in the first OFDM symbol of a subframe and carries information about the number of OFDM symbols used for transmission of a control channel within the subframe.
  • the PHICH carries a Hybrid Automatic Repeat Request (HARQ) ACK / NACK (acknowledgment / negative-acknowledgment) signal in response to the UL transmission.
  • HARQ Hybrid Automatic Repeat Request
  • DCI downlink control information
  • DL-SCH downlink shared channel
  • UL-SCH uplink shared channel
  • paging channel a downlink shared channel
  • the transmission format and resource allocation information of a downlink shared channel may also be called DL scheduling information or a DL grant, and may be referred to as an uplink shared channel (UL-SCH).
  • the transmission format and resource allocation information is also called UL scheduling information or UL grant.
  • the PDCCH is transmitted on an aggregation of one or a plurality of consecutive control channel elements (CCEs).
  • CCE is a logical allocation unit used to provide a PDCCH with a coding rate based on radio channel conditions.
  • the CCE corresponds to a plurality of resource element groups (REGs). For example, one CCE corresponds to nine REGs and one REG corresponds to four REs.
  • REGs resource element groups
  • a CCE set in which a PDCCH can be located is defined for each UE.
  • the set of CCEs in which a UE can discover its PDCCH is referred to as a PDCCH search space, simply a search space (SS).
  • SS search space
  • PDCCH candidate An individual resource to which a PDCCH can be transmitted in a search space is called a PDCCH candidate.
  • the collection of PDCCH candidates that the UE will monitor is defined as a search space.
  • a search space for each DCI format may have a different size, and a dedicated search space and a common search space are defined.
  • the dedicated search space is a UE-specific search space and is configured for each individual UE.
  • the common search space is set for a plurality of UEs.
  • One PDCCH candidate corresponds to 1, 2, 4, or 8 CCEs according to a CCE aggregation level.
  • the BS sends the actual PDCCH (DCI) on any PDCCH candidate in the search space, and the UE monitors the search space to find the PDCCH (DCI).
  • monitoring means attempting decoding of each PDCCH in a corresponding search space according to all monitored DCI formats.
  • the UE may detect its own PDCCH by monitoring the plurality of PDCCHs. Basically, since the UE does not know where its PDCCH is transmitted, every Pframe attempts to decode the PDCCH until every PDCCH of the corresponding DCI format has detected a PDCCH having its own identifier. It is called blind detection (blind decoding).
  • the BS may transmit data for the UE or the UE group through the data area.
  • Data transmitted through the data area is also called user data.
  • a physical downlink shared channel (PDSCH) may be allocated to the data area.
  • Paging channel (PCH) and downlink-shared channel (DL-SCH) are transmitted through PDSCH.
  • the UE may read data transmitted through the PDSCH by decoding control information transmitted through the PDCCH.
  • the DCI carried by one PDCCH has a different size and use depending on the DCI format, and its size may vary depending on a coding rate.
  • Information indicating to which UE or UE group data of the PDSCH is transmitted, how the UE or UE group should receive and decode PDSCH data, and the like are included in the PDCCH and transmitted.
  • a specific PDCCH is masked with a cyclic redundancy check (CRC) with a Radio Network Temporary Identity (RNTI) of "A", a radio resource (eg, a frequency location) of "B” and a transmission of "C”.
  • RNC Radio Network Temporary Identity
  • RNTI Radio Network Temporary Identity
  • format information eg, transport block size, modulation scheme, coding information, etc.
  • FIG. 4 shows an example of an uplink subframe structure used in a 3GPP LTE / LTE-A system.
  • the UL subframe may be divided into a control region and a data region in the frequency domain.
  • One or several physical uplink control channels may be allocated to the control region to carry uplink control information (UCI).
  • One or several physical uplink shared channels may be allocated to a data region of a UL subframe to carry user data.
  • the control region and data region in the UL subframe may also be called a PUCCH region and a PUSCH region, respectively.
  • a sounding reference signal (SRS) may be allocated to the data area.
  • the SRS is transmitted in the OFDM symbol located at the end of the UL subframe in the time domain and in the data transmission band of the UL subframe, that is, in the data domain, in the frequency domain.
  • SRSs of several UEs transmitted / received in the last OFDM symbol of the same subframe may be distinguished according to frequency location / sequence.
  • SC-FDMA Single Carrier Frequency Division Multiplexing Access
  • PUCCH and PUSCH are performed on one carrier. Can't send at the same time.
  • whether to support simultaneous transmission of a PUCCH and a PUSCH may be indicated in a higher layer.
  • subcarriers having a long distance based on a direct current (DC) subcarrier are used as a control region.
  • subcarriers located at both ends of the UL transmission bandwidth are allocated for transmission of uplink control information.
  • the DC subcarrier is a component that is not used for signal transmission and is mapped to a carrier frequency f 0 during frequency upconversion.
  • the PUCCH for one UE is allocated to an RB pair belonging to resources operating at one carrier frequency in one subframe, and the RBs belonging to the RB pair occupy different subcarriers in two slots.
  • the PUCCH allocated in this way is expressed as that the RB pair allocated to the PUCCH is frequency hopped at the slot boundary. However, if frequency hopping is not applied, RB pairs occupy the same subcarrier.
  • PUCCH may be used to transmit the following control information.
  • SR Service Request: Information used for requesting an uplink UL-SCH resource. It is transmitted using OOK (On-Off Keying) method.
  • HARQ-ACK A response to a PDCCH and / or a response to a downlink data packet (eg, codeword) on a PDSCH. This indicates whether the PDCCH or PDSCH is successfully received.
  • One bit of HARQ-ACK is transmitted in response to a single downlink codeword, and two bits of HARQ-ACK are transmitted in response to two downlink codewords.
  • HARQ-ACK response includes a positive ACK (simple, ACK), negative ACK (hereinafter, NACK), DTX (Discontinuous Transmission) or NACK / DTX.
  • NACK negative ACK
  • DTX discontinuous Transmission
  • HARQ-ACK is mixed with HARQ ACK / NACK, ACK / NACK.
  • CSI Channel State Information
  • MIMO Multiple Input Multiple Output
  • RI rank indicator
  • PMI precoding matrix indicator
  • the amount of uplink control information (UCI) that a UE can transmit in a subframe depends on the number of SC-FDMA available for control information transmission.
  • SC-FDMA available for UCI means the remaining SC-FDMA symbol except for the SC-FDMA symbol for transmitting the reference signal in the subframe, and in the case of the subframe in which the Sounding Reference Signal (SRS) is set, the last SC of the subframe
  • SRS Sounding Reference Signal
  • the -FDMA symbol is also excluded.
  • the reference signal is used for coherent detection of the PUCCH.
  • PUCCH supports various formats according to the transmitted information.
  • Table 3 shows a mapping relationship between PUCCH format and UCI in LTE / LTE-A system.
  • the PUCCH format 1 series is mainly used to transmit ACK / NACK information
  • the PUCCH format 2 series is mainly used to carry channel state information (CSI) such as CQI / PMI / RI
  • the PUCCH format 3 series is mainly used to transmit ACK / NACK information.
  • 5 to 8 illustrate UCI transmission using PUCCH format 1 series and PUCCH format 2 series.
  • a DL / UL subframe with a regular CP consists of two slots, each slot containing seven OFDM symbols, and a DL / UL subframe with an extended CP, each slot It consists of two slots containing these six OFDM symbols. Since the number of OFDM symbols per subframe varies according to the CP length, the structure in which the PUCCH is transmitted in the UL subframe also varies according to the CP length. Accordingly, depending on the PUCCH format and the CP length, a method of transmitting a UCI in a UL subframe may vary.
  • FIG. 5 illustrates an example of transmitting ACK / NACK information using a PUCCH format 1a / 1b in a UL slot having a regular CP
  • FIG. 6 illustrates ACK / NACK using PUCCH format 1a / 1b in a UL slot having an extended CP.
  • An example of transmitting NACK information is shown.
  • the ACK / NACK signal has a different cyclic shift (CS) (frequency domain code) and orthogonal cover code (OC) or orthogonal in a computer-generated constant amplitude zero auto correlation (CG-CAZAC) sequence.
  • cover code (OCC)) time domain spreading code.
  • Orthogonal cover codes are also called orthogonal sequences.
  • OC includes, for example, Walsh / Discrete Fourier Transform (DFT) orthogonal code.
  • a total of 18 PUCCHs may be multiplexed in the same physical resource block (PRB) based on a single antenna port.
  • Orthogonal sequences w 0 , w 1 , w 2 , w 3 may be applied in any time domain (after Fast Fourier Transform (FFT) modulation) or in any frequency domain (before FFT modulation).
  • FFT Fast Fourier Transform
  • the PUCCH resource for ACK / NACK transmission includes the location of time-frequency resources (e.g., PRB), cyclic shift of a sequence for frequency spreading, and Expressed as a combination of orthogonal codes, each PUCCH resource is indicated using a PUCCH resource index (also called a PUCCH index).
  • PUCCH resource index also called a PUCCH index.
  • the slot level structure of the PUCCH format 1 series for SR (Scheduling Request) transmission is the same as that of the PUCCH formats 1a and 1b, and only its modulation method is different.
  • FIG. 7 shows an example of transmitting channel state information (CSI) using a PUCCH format 2 / 2a / 2b in a UL slot having a regular CP
  • FIG. 8 shows a PUCCH format in a UL slot having an extended CP.
  • An example of transmitting channel state information using 2 / 2a / 2b is shown.
  • one UL subframe includes 10 OFDM symbols except for a symbol carrying a UL reference signal (RS).
  • the channel state information is coded into 10 transmission symbols (also called complex-valued modulation symbols) through block coding.
  • the 10 transmission symbols are respectively mapped to the 10 OFDM symbols and transmitted to the BS.
  • PUCCH format 1 / 1a / 1b and PUCCH format 2 / 2a / 2b can carry UCI up to a certain number of bits.
  • PUCCH format 1 / 1a / 1b and PUCCH format 2 / 2a / 2b can carry UCI up to a certain number of bits.
  • PUCCH format 3 is introduced, which is called PUCCH format 3.
  • PUCCH format 3 may be used when a UE configured with carrier aggregation transmits a plurality of ACK / NACKs for a plurality of PDSCHs received from a BS through a plurality of downlink carriers through a specific uplink carrier.
  • Carrier aggregation refers to carrier aggregation or bandwidth aggregation using a larger uplink / downlink bandwidth by collecting a plurality of uplink / downlink frequency blocks to use a wider frequency band than a frequency band operating in one carrier.
  • a typical wireless communication system performs data transmission / reception through one downlink (DL) band and one uplink (UL) band corresponding thereto (frequency division duplex (FDD) mode).
  • FDD frequency division duplex
  • a predetermined radio frame divided into an uplink time unit and a downlink time unit in a time domain, and perform data transmission / reception through uplink / downlink time units. time division duplex (TDD) mode).
  • the BS and the UE transmit and receive the scheduled data and / or control information in units of a predetermined time unit, for example, a subframe (SF).
  • carrier aggregation refers to a plurality of uplink / downlink frequency blocks that are used to use a wider frequency band. This technique uses a larger uplink / downlink bandwidth.
  • DL and / or UL communication is performed using a plurality of carrier frequencies, an OFDM that performs DL or UL communication by putting a fundamental frequency band divided into a plurality of orthogonal subcarriers on one carrier frequency It is distinguished from technology.
  • Each of the plurality of carriers aggregated is called a component carrier (CC).
  • CC may be adjacent to each other or non-adjacent in the frequency domain, and the bandwidth of each CC may be determined independently.
  • Asymmetrical carrier aggregation in which the number of UL CCs and the number of DL CCs are different is also possible.
  • the UL CC and the DL CC are also called UL resources and DL resources, respectively.
  • the 3GPP LTE / LTE-A system uses the concept of a cell to manage radio resources.
  • a cell is defined as a combination of DL resources and UL resources, that is, a combination of a DL CC and a UL CC.
  • the cell may be configured of DL resources alone or a combination of DL resources and UL resources.
  • the linkage between the carrier frequency of the DL resource (or DL CC) and the carrier frequency of the UL resource (or UL CC) is indicated by system information.
  • system information can be.
  • a combination of a DL resource and a UL resource may be indicated by a system information block type 2 (SIB2) linkage.
  • SIB2 system information block type 2
  • the SIB2 linkage uses a different frequency from that of the DL CC to which the UE is connected. It is indicated as the frequency of.
  • the DL CC constituting one cell and the UL CC linked with the DL CC operate at different frequencies.
  • the SIB2 linkage uses the same frequency as that of the DL CC to which the UE is connected.
  • the carrier frequency means a center frequency of each cell or CC.
  • a cell operating on a primary frequency is referred to as a primary cell (PCell) or a PCC
  • a cell operating on a secondary frequency is referred to as a secondary cell (SCell).
  • SCC secondary cell
  • PCell refers to a cell used by a UE to perform an initial connection establishment process or to initiate a connection reestablishment process.
  • PCell may refer to a cell indicated in the handover process.
  • the PCell may refer to a DL CC which is initially synchronized with a UE by receiving a DL synchronization signal (SS) and an UL CC linked to the DL CC.
  • DL PCC downlink primary CC
  • DL PCC downlink main CC
  • SCell refers to a cell that can be configured after RRC (Radio Resource Control) connection establishment and can be used to provide additional radio resources.
  • RRC Radio Resource Control
  • the SCell may form a set of serving cells for the UE with the PCell.
  • the serving cell may be called a serving CC.
  • the carrier corresponding to the SCell in downlink is called DL Supplementary CC (DL SCC), and the carrier corresponding to the SCell in uplink is called UL Supplementary CC (UL SCC).
  • DL SCC DL Supplementary CC
  • UL SCC UL Supplementary CC
  • one or more serving cells may exist, and the entire serving cell may include one PCell and one or more SCells.
  • the network may configure a UE in which carrier aggregation is supported by adding one or more SCells to an initially configured PCell during a connection establishment process. However, even if the UE supports carrier aggregation, the network may configure only the PCell for the UE without adding the SCell.
  • the PDCCH carrying the UL / DL grant and the corresponding PUSCH / PDSCH are transmitted in the same cell.
  • the PDCCH for the DL grant for the PDSCH to be transmitted in a specific DL CC is transmitted in the specific CC
  • the PDCCH for the UL grant for the PUSCH to be transmitted in the specific UL CC is specified in the specific CC. It is transmitted on the DL CC linked with the UL CC.
  • UL / DL grant can be allowed to be transmitted in a serving cell having a good channel condition.
  • this is called cross-carrier scheduling.
  • aggregation of a plurality of CCs and a cross-carrier scheduling operation based on the same may be supported for data rate improvement and stable control signaling.
  • the PCell may carry scheduling information about itself and the SCell, and the SCell may carry scheduling information about itself and the other SCell. However, SCell is not allowed to carry the scheduling information for the PCell.
  • the term cell used in carrier aggregation is distinguished from a term cell which refers to a certain geographic area where communication service is provided by one BS or one antenna group.
  • the downlink signal of a specific cell which refers to the coverage of a communication service, means a signal transmitted by a BS or an antenna group of the specific cell to a UE, and is an uplink of the specific cell.
  • the signal means a signal transmitted by the UE to the BS or the antenna group of the specific cell.
  • a downlink / uplink signal of a cell of a carrier aggregation refers to a radio signal transmitted / received using resources constituting the cell.
  • a cell of a carrier aggregation is hereinafter referred to as a CC, and a cell of a geographic area is called a cell.
  • a CC a cell of a carrier aggregation
  • a cell of a geographic area is called a cell.
  • the UE may use UCI bundling, channel selection to select any of a plurality of PUCCH resources, dual Reed-Muller code, block-spreading Can be transmitted to the BS at a time. For example, when the UE wants to transmit ACK / NACK information for a plurality of PDSCHs received from a BS through a plurality of DL CCs, the amount of ACK / NACK information for a plurality of PDSCHs is equal to PUCCH format 1a.
  • the UE Since there are too many to transmit using / 1b, the UE sends a plurality of ACK / NACK transmission bits to a channel code (e.g., a Reed-Muller code, a tail-biting convolutional code). tail-biting convolution code (TBCC), turbo code, etc.) and then to the BS using PUCCH format 2 or to the BS using block-spreading based PUCCH format 3 have.
  • a channel code e.g., a Reed-Muller code, a tail-biting convolutional code
  • tail-biting convolution code (TBCC), turbo code, etc.) then to the BS using PUCCH format 2 or to the BS using block-spreading based PUCCH format 3 have.
  • the block-spreading technique modulates control information / signals (eg, ACK / NACK, etc.) using the SC-FDMA scheme, unlike the PUCCH format 1 series or the PUCCH format 2 series.
  • FIG. 9 illustrates a PUCCH format based on block-spreading.
  • the block-spreading technique transmits a symbol sequence by time-domain spreading by an orthogonal cover code (OCC) (also called an orthogonal sequence).
  • OCC orthogonal cover code
  • control signals of several UEs may be multiplexed on the same RB and transmitted to the BS by the OCC.
  • PUCCH format 2 one symbol sequence is transmitted over a time-domain, but UCIs of UEs are multiplexed using a cyclic shift (CCS) of a CAZAC sequence and transmitted to a BS.
  • CCS cyclic shift
  • one symbol sequence is transmitted across a frequency-domain, where UCIs of UEs use OCC based time-domain spreading of UEs. UCIs are multiplexed and sent to the BS.
  • the RS symbol may be generated from a CAZAC sequence having a specific cyclic shift, and may be transmitted from the UE to the BS in a specific OCC applied / multiplied to a plurality of RS symbols in the time domain.
  • the DFT may be applied before the OCC, and a Fast Fourier Transform (FFT) may be applied instead of the DFT.
  • FFT Fast Fourier Transform
  • bit blocks b (0), ..., (M bit -1) are scrambled by the UE-specific scrambling sequence.
  • Bit blocks b (0), ..., (M bit- 1) is a UCI containing at least one of the ACK / NACK bits, CSI bits, SR bits, Reed-Muller (RM) code, TBCC, It may correspond to a value encoded by a turbo code.
  • Scrambled bit block Can be generated by the following equation.
  • c (i) represents a scrambling sequence
  • c (i) may be generated according to the following equation using a pseudo-random sequence defined by a length-31 gold sequence.
  • the second m-sequence is given by the value depending on the application of the sequence:
  • the scrambling sequence generator for generating the scrambling sequence c (i) may be initialized at the beginning of every subframe according to the following equation.
  • n s is a slot number in a radio frame
  • N Cell ID is a physical layer cell identifier
  • n RNTI represents a cell RNTI (C-RNTI).
  • the complex modulation symbols d (0), ..., d (M sym -1) are orthogonal sequences And Is spread in block-wise using N PUCCH SF, 0 + N PUCCH SF, and one set of complex-valued symbols is generated according to the following equation.
  • Each complex symbol set corresponds to one SC-FDM symbol and has N RB sc (eg, 12) complex modulation values.
  • N PUCCH SF, 0 and N PUCCH SF, 1 correspond to the number of SC-FDM symbols used for PUCCH transmission in slot 0 and slot 1, respectively.
  • Resources for transmission of PUCCH format 3 may be identified by resource index n (3, p) PUCCH .
  • n p oc, 0 and n p oc, 1 can be given according to the following equation.
  • Each complex symbol set is cyclically shifted according to the following equation.
  • n cell cs (n s , l) is a cell-specific cyclic shift, and is changed according to the following equation by SC-FDM symbol number l in one slot and slot number n s in a radio frame.
  • the pseudo-random sequence c (i) may be defined by Equation 2.
  • the transitioned sets of complex symbols are transform precoded as follows. As a result, blocks z p (0), ..., z p ((N PUCCH SF, 0 + N PUCCH SF, 1 ) N RB sc -1) of complex symbols are generated.
  • P represents the number of antenna ports used for PUCCH transmission.
  • the complex symbols z p (0), ..., z p ((N PUCCH SF, 0 + N PUCCH SF, 1 ) N RB sc -1) are mapped to the physical resource after power control.
  • PUCCH uses one resource block in each slot in a subframe.
  • Z p (0), ..., z p ((N PUCCH SF, 0 + N PUCCH SF, 1 ) N RB sc -1) in the corresponding resource block is not used for RS transmission (k, l M), starting with the first slot of the subframe, followed by increasing k, then increasing l, and then increasing slot number.
  • the resource for PUCCH format 3 for antenna port p is identified by resource index n (3, p) PUCCH .
  • Resource allocation in PUCCH format 3 is basically based on explicit resource allocation. That is, a UE in which PUCCH format 3 is configured may explicitly receive an orthogonal resource for PUCCH format 3 from the BS. Meanwhile, the resource for PUCCH format 3 may be determined in conjunction with an ACK (ACK / NACK Resource Indicator) in the PDCCH for the PDSCH transmitted through the SCC.
  • ACK ACK / NACK Resource Indicator
  • An ARI means an offset based on a PUCCH resource index explicitly signaled from a BS to a UE, or a resource to be used for actual PUCCH transmission among PUCCH resources in a PUCCH resource set explicitly signaled from a BS to a UE. Can be used as an indication.
  • the transmit power control (TPC) field in the DCI transmitted from the BS to the UE through the PDCCH of the SCC may be reused as an ARI, and the TPC field in the DCI transmitted from the BS to the UE via the PDCCH of the PCC is originally used. Can be used for PUCCH power control.
  • the UE and BS may operate in a fall-back mode in which ACK / NACK is transmitted / received using PUCCH resources of existing PUCCH formats 1a / 1b.
  • the UCI payload transmitted by PUCCH format 3 may be channel encoded by a (32, O) RM code.
  • O represents the number of input bits and 32 represents the number of output bits.
  • up to 11 RM encoding using a (32, O) block code can encode up to 11.
  • dual RM encoding is applied to PUCCH format 3. That is, the following channel coding may be applied to the PUCCH format 3.
  • UCI payload size 11 bits: Dual RM encoding using (32, O) block code
  • the UCI bit sequence a_0, a_1, a_2, ..., a_ (N PUCCHformat3) for N PUCCHformat3 A / N ⁇ 11 A / N -1) is encoded according to the following equation.
  • the base sequences M i, n may be defined, for example, as follows.
  • the output bit sequence b 0 , b 1 , b 2 , ..., b B-1 can be obtained by the circular repetition of the sequence encoded by equation (11). Same as
  • FIG. 10 is a block diagram illustrating dual Reed-Muller (RM) encoding
  • FIG. 11 is a diagram illustrating a bit sequence of uplink control information to which dual RM encoding is applied.
  • FIGS. 10 and 11 illustrate channel encoding of UCI having a payload size greater than 11.
  • ACK / NACK bits to be transmitted at one time are ordered according to a specific rule, and thus an ACK / NACK bit sequence o ACK _0, o ACK _1, ..., o ACK _ (N PUCCHformat3 A / N- 1 may be generated (S1110).
  • ACK / NACK bit sequence of N PUCCHformat3 A / N bits o ACK _0, o ACK _1, ..., o ACK _ (N PUCCHformat3 A / N- 1) is the input bit sequence a_0, a_1, to the dual RM encoder. It may correspond to..., a_ (N PUCCHformat3 A / N ⁇ 1) (S1110).
  • the input bit sequence a_0, a_1, ..., a_ (N PUCCHformat3 A / N- 1) is divided into two segments for dual RM encoding (S1120).
  • bit sequence a_0, a_1, ..., a_ (N PUCCHformat3 A / N -1) has two RM coding segments [a_0, a_2, ..., a_ (ceil (N PUCCHformat3 A / N / 2)). -1)] (hereafter Segment 1) and [a_ceil (N PUCCHformat3 A / N / 2), a_ (ceil (N PUCCHformat3 A / N / 2) +1), ..., a_ (N PUCCHformat3 A / N -1)] (hereinafter referred to as segment 2).
  • RM encoding is applied to segments 1 and 2, respectively (S1130).
  • (32, O) channel coding is applied for each segment, 32 bits of encoded bits are generated for each segment, resulting in a total of 64 bits of encoded bits for two segments.
  • the subcarriers before the two RB precodings eg, DFT
  • the number of subcarriers is 24.
  • QPSK quadrature phase shift keying
  • the UCI bit sequence [a_0, a_1, ..., a_ (ceil (N PUCCHformat3 A / N / 2) -1)] is a UCI bit sequence [a_ceil (N PUCCHformat3 A / N ) according to Equation 13. / 2), a_ (ceil (N PUCCHformat3 A / N / 2) +1), ..., a_ (N PUCCHformat3 A / N- 1)] may be channel coded according to Equation 14, respectively.
  • the encoded 24 bits of each segment thus generated are modulated by QPSK and interleaved in a virtual subcarrier domain (DFT front end) for mapping to virtual subcarriers (S1140).
  • the output bits of Equation 13 and the output bits of Equation 14 may be interleaved by alternately connecting on the basis of the QPSK constellation, that is, in units of two bits.
  • the output bit sequence may be QPSK modulated and mapped to subcarriers (ie, virtual subcarriers) preceding the DFT.
  • subcarriers ie, virtual subcarriers
  • QPSK symbols of segment 1 may be mapped to even-numbered subcarriers
  • QPSK symbols of segment 2 may be mapped to odd-numbered subcarriers.
  • the QPSK symbols of segment 1 may be mapped to odd-numbered subcarriers
  • the QPSK symbols of segment 2 may be mapped to even-numbered subcarriers.
  • the subcarriers to which the interleaved QPSK symbols are mapped are DFT precoded and mapped to a PRB, and are converted into a radio signal by an inverse fast fourier transform (IFFT) and transmitted from a transmitting device to a receiving device.
  • IFFT inverse fast fourier transform
  • a transmission diversity scheme may be applied to the PUCCH format 3.
  • Spatial orthogonal resource transmit diversity (SORTD) scheme may be considered as a transmit diversity scheme that may be applied to PUCCH format 3.
  • SORTD refers to a transmission scheme for transmitting the same information using a plurality of physical resources (code and / or time / frequency region, etc.). Unlike the 3GPP LTE system, in which the UE supports only one transmit antenna port, in the 3GPP LTE-A system, the UE can also support more than one transmit antenna port. Accordingly, in the 3GPP LTE-A system, SORTD may support a plurality of transmit antenna ports for PUCCH transmission. When SORTD is transmitted for PUCCH transmission, twice as much PUCCH resources are used for PUCCH transmission as compared to PUCCH transmission by a single antenna port.
  • ACK / NACK information b0, b1, b2, b3 when ACK / NACK information b0, b1, b2, b3 is transmitted without SORTD, the ACK / NACK information b0, b1, b2, b3 is divided into four PUCCH resources n0, n1, n2, n3) is transmitted through a single antenna port using either.
  • ACK / NACK information b0, b1, b2, b3 is transmitted to SORTD
  • the ACK / NACK information b0, b1, b2, b3 is divided into four PUCCH resources n0, n1, n2, n3.
  • the present invention proposes to apply a frequency switched transmit diversity (FSTD) scheme to a PUCCH format 3 as a transmit diversity scheme.
  • FSTD frequency switched transmit diversity
  • FIG. 12 shows an example of mapping a modulation symbol to a frequency domain by using a frequency switched transmit diversity (FSTD) technique.
  • FSTD frequency switched transmit diversity
  • the FSTD scheme alternately distributes bits or modulation symbols encoded by channel encoding to a plurality of antenna ports, and transmits modulation symbols per antenna port on resources orthogonal in the frequency domain.
  • encoded bits or modulation symbols by channel coding are alternately distributed for each antenna port, and the distributed bits or modulation symbols are transmitted orthogonally in the frequency domain through the corresponding antenna port, so that the channel coding gain is reduced.
  • modulation symbols obtained by QPSK modulation of the above-described output bit sequence by dual RM encoding are sequentially distributed to a plurality of antenna ports, and modulation symbols for each antenna port are mapped to the frequency domain by DFT precoding.
  • the QPSK modulated symbol sequence corresponding to the 48-bit output bit sequence [b 0 , b 1 , b 2 , b 3 , ..., b 47 ] is replaced by [y (0), y (1), y (2) , y (3), ..., y (23)], the QPSK modulated symbols (hereinafter referred to as QPSK symbols) are mapped to the frequency domain for each of the two antenna ports through six units of DFT precoding.
  • QPSK symbols are mapped to the frequency domain for each of the two antenna ports through six units of DFT precoding.
  • Each of Z (0) , Z (1) , Z (2) and Z (3) may be DFT precoded by a six-point DFT precoder, mapped to two antenna ports, and transmitted through the corresponding antenna port .
  • Z (0) , Z (1) , Z (2) and Z (3) may be mapped and transmitted to antenna port 0 and antenna port 1, for example, as follows.
  • even complex symbols are mapped to antenna port 0
  • odd complex symbols are mapped to antenna port 1
  • even complex symbols and odd multiple symbols are mapped to different subcarriers.
  • modulation symbols mapped to even subcarriers ie, even subcarriers
  • modulation symbols mapped to odd subcarriers ie, odd subcarriers
  • FIG. 13 shows an example of transmission of PUCCH format 3 to which FSTD is applied.
  • the output bits b (0), b (1), ..., b (B-1) by dual RM encoding are divided into two slots of one subframe through scrambling and modulation, and described above in the divided bit sequence.
  • One spreading is applied to obtain blocks y (0), ..., y (M symb- 1) of complex symbols.
  • the output bit sequence [b 0 , b 1 , b 2 , b 3 , ..., b 47 ] of FIG. 11 corresponds to b (0), b (1), ..., b (B-1). Can be.
  • Transform precoding may be applied to the blocks y (0), ..., y (M symb- 1) of the complex symbols according to the following.
  • the complex symbols z (p) (0), ..., z (p) (M symb -1) of the p -th block are transmitted on antenna port p.
  • the odd modulation symbol is mapped to antenna port 1.
  • DFT is applied to demodulated symbols of each antenna port to output complex symbols, and complex symbols of each antenna port are mapped to even subcarriers or odd subcarriers.
  • IFFT is applied to the subcarriers of each antenna port to generate a complex-valued time-domain SC-FDM symbol for each antenna port.
  • Each SC-FDM symbol is transmitted through the corresponding antenna port.
  • FIG. 14 illustrates transmission of uplink control information to which a simple combination of dual RM encoding and FSTD scheme is applied.
  • channel-coded ACK / NACK information may be evenly distributed to antenna ports.
  • dual RM encoding is applied to ACK / NACK information of 12 bits or more, if the above-described FSTD technique is simply extended, an output bit sequence of dual RM encoding is mapped to subcarriers by 2 bits and the subcarrier is used. Are distributed to antenna port 0 and antenna port 1 in turn by some subcarriers. In other words, the output bit sequence of dual RM encoding is alternately distributed to antenna port 0 and antenna port 1 by 2 bits.
  • the entire encoded bit sequence obtained by RM encoding from ACK / NACK segment 1 is transmitted through antenna port 0 and the entire encoded bit sequence obtained by RM encoding from ACK / NACK segment 2 by another RM encoding is the antenna. Transmitted through port 1.
  • One modulation symbol is mapped to an odd subcarrier assigned to antenna port 1 and transmitted through the antenna port 1.
  • segment 1 is transmitted through antenna port 0 and segment 2 is transmitted through antenna port 1.
  • simply applying the dual RM encoding and the FSTD technique to UCI eliminates the effect that the bit sequences encoded by the dual RM encoding are permuted in the antenna domain, so that the transmission diversity gain by the FSTD technique is not obtained. can not do it.
  • each of the RM coding segments is evenly spread in the antenna domain.
  • the even distribution of the RM coding segments into the antenna domain can be achieved by arranging the ACK / NACK bits (S1110 in FIG. 11) (O ACK _i), the previous step (a_i) in channel coding (S1130 in FIG. 11), and channel coding (FIG. 11).
  • embodiments of the present invention will be described based on the pre-DFT precoding step (y (p) n (i)), but using an equivalent representation (e.g., mapping relationship from O ACK _i to a_i). In other steps, even distribution of the RM coding segments to the antenna domain may be implemented.
  • embodiments of the present invention will be described with reference to FIGS. 15, 16, and 17. Since the steps up to the pre-DFT precoding in FIG. 15, 16, and 17 are the same as the steps up to the pre-DFT precoding in FIG. 10 described above, they will not be described again.
  • FIG. 15 illustrates an embodiment of the present invention in which dual RM encoding and FSTD techniques are applied together to signal transmission.
  • This embodiment does not alternately distribute the output bit sequence of the dual RM encoding by 2 bits or one modulation symbol to the antenna ports, but by successive 2 * m (where m is a positive integer greater than 1) bits. Or it is distributed to the antenna ports in a unit of a plurality of consecutive modulation symbols. For example, referring to FIG. 15, six QPSK symbols corresponding to an output bit sequence of dual RM encoding are distributed to antenna port 0 and antenna port 1. The six QPSK symbols are transmitted through the corresponding antenna port of antenna port 0 and antenna port 1 in one of slot 0 and slot 1 via a six-point DFT, respectively.
  • the output bit sequence of the dual RM encoding distributes the modulated modulation symbols to the antenna ports in units of a plurality of consecutive modulation symbols.
  • the output bit sequence may be alternately distributed to the antenna ports in units of a plurality of consecutive modulation symbols.
  • FIG. 15 may be described as follows.
  • Transform precoding may be applied to the blocks y (0), ..., y (M symb- 1) of the complex symbols according to the following.
  • the complex symbols z (p) (0), ..., z (p) (M symb -1) of the p -th block are transmitted on antenna port p.
  • 16 shows another embodiment of the present invention in which dual RM encoding and FSTD techniques are applied together to signal transmission.
  • FIG. 16 may be viewed as an aspect of the embodiment of FIG. 15.
  • demodulation symbols corresponding to an output bit sequence of dual RM encoding are alternately distributed to two antenna demodulation symbols in succession.
  • the output bit sequence of the dual RM encoding distributes the modulated modulation symbols to the antenna ports in units of a plurality of consecutive modulation symbols.
  • 24 QPSK symbols based on an output bit sequence of dual RM encoding are distributed to antenna port 0 and antenna port 1 in units of two consecutive QPSK symbols. Twelve consecutive QPSK symbols of the 24 QPSK symbols are transmitted in slot 0, and the remaining 12 consecutive QPSK symbols are transmitted in slot 1, and 12 QPSK symbols transmitted in one of slot 0 and slot 1 are 2 Are alternately mapped to antenna port 0 and antenna port 1. Accordingly, six QPSK symbols are mapped to one antenna port in one slot, and the six QPSK symbols are transmitted through the corresponding antenna port in the corresponding slot via a six-point DFT.
  • FIG. 16 may be described as follows.
  • Transform precoding may be applied to the blocks y (0), ..., y (M symb- 1) of the complex symbols according to the following.
  • the complex symbols z (p) (0), ..., z (p) (M symb -1) of the p -th block are transmitted on antenna port p.
  • FIG. 17 shows another embodiment of the present invention in which dual RM encoding and FSTD techniques are applied together to signal transmission.
  • the embodiment of FIG. 17 may be viewed as an embodiment generalizing the embodiment of FIG. 15 and the embodiment of FIG. 16.
  • the mapper distributes an output bit sequence by channel coding to each antenna port.
  • the mapper of FIG. 17 maps an output bit sequence to a plurality of antenna ports by a plurality of consecutive bits or by a plurality of consecutive modulation symbols according to a randomly formed pattern or a specific pattern to optimize UCI transmission performance.
  • the specific pattern may be a pattern defined to alternately map the output bit sequence by a plurality of consecutive bits or by a plurality of consecutive modulation symbols to the plurality of antenna ports.
  • mod denotes a modulo operation
  • (A) mod (B) denotes the remainder of A to B
  • embodiments of the present invention have been described as UCI bits mapped to antenna port 0 mapped to even subcarriers and UCI bits mapped to antenna port 1 mapped to odd subcarriers.
  • this is merely an example, and the present invention may be implemented as long as UCI bits or UCI modulation / complex symbols transmitted through a plurality of antenna ports are transmitted through orthogonal frequency resources.
  • a frequency resource mapped to an antenna port used for UCI transmission may be orthogonal to a resource allocated to another antenna port used for UCI transmission.
  • FIG. 18 is a block diagram showing components of a transmitter 10 and a receiver 20 for carrying out the present invention.
  • the transmitter 10 and the receiver 20 are radio frequency (RF) units 13 and 23 capable of transmitting or receiving radio signals carrying information and / or data, signals, messages, and the like, and in a wireless communication system.
  • the device is operatively connected to components such as the memory 12 and 22 storing the communication related information, the RF units 13 and 23 and the memory 12 and 22, and controls the components.
  • a processor 11, 21 configured to control the memory 12, 22 and / or the RF units 13, 23, respectively, to perform at least one of the embodiments of the invention described above.
  • the memories 12 and 22 may store a program for processing and controlling the processors 11 and 21, and may temporarily store input / output information.
  • the memories 12 and 22 may be utilized as buffers.
  • the processors 11 and 21 typically control the overall operation of the various modules in the transmitter or receiver. In particular, the processors 11 and 21 may perform various control functions for carrying out the present invention.
  • the processors 11 and 21 may also be called controllers, microcontrollers, microprocessors, microcomputers, or the like.
  • the processors 11 and 21 may be implemented by hardware or firmware, software, or a combination thereof.
  • application specific integrated circuits ASICs
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • the firmware or software when implementing the present invention using firmware or software, may be configured to include a module, a procedure, or a function for performing the functions or operations of the present invention, and configured to perform the present invention.
  • the firmware or software may be provided in the processors 11 and 21 or stored in the memory 12 and 22 to be driven by the processors 11 and 21.
  • the processor 11 of the transmission apparatus 10 is predetermined from the processor 11 or a scheduler connected to the processor 11 and has a predetermined encoding and modulation on a signal and / or data to be transmitted to the outside. After performing the transmission to the RF unit 13. For example, the processor 11 converts the data sequence to be transmitted into K layers through demultiplexing, channel encoding, scrambling, and modulation.
  • the coded data string is also called a codeword and is equivalent to a transport block, which is a data block provided by the MAC layer.
  • One transport block (TB) is encoded into one codeword, and each codeword is transmitted to a receiving device in the form of one or more layers.
  • the RF unit 13 may include an oscillator for frequency upconversion.
  • the RF unit 13 may include N t transmit antennas, where N t is a positive integer greater than or equal to one.
  • the signal processing of the receiver 20 is the reverse of the signal processing of the transmitter 10.
  • the RF unit 23 of the receiving device 20 receives a radio signal transmitted by the transmitting device 10.
  • the RF unit 23 may include N r receive antennas, and the RF unit 23 frequency down-converts each of the signals received through the receive antennas to restore the baseband signal. .
  • the RF unit 23 may include an oscillator for frequency downconversion.
  • the processor 21 may decode and demodulate a radio signal received through a reception antenna to restore data originally transmitted by the transmission apparatus 10.
  • the RF units 13, 23 have one or more antennas.
  • the antenna transmits a signal processed by the RF units 13 and 23 to the outside or receives a radio signal from the outside according to an embodiment of the present invention under the control of the processors 11 and 21. , 23).
  • Antennas are also called antenna ports.
  • Each antenna may correspond to one physical antenna or may be configured by a combination of more than one physical antenna elements.
  • the signal transmitted from each antenna can no longer be decomposed by the receiver 20.
  • a reference signal (RS) transmitted corresponding to the corresponding antenna defines an antenna viewed from the perspective of the receiving apparatus 20, and includes a channel or whether the channel is a single radio channel from one physical antenna.
  • RS reference signal
  • the receiver 20 enables channel estimation for the antenna. That is, the antenna is defined such that a channel carrying a symbol on the antenna can be derived from the channel through which another symbol on the same antenna is delivered.
  • the antenna In the case of an RF unit supporting a multi-input multi-output (MIMO) function for transmitting and receiving data using a plurality of antennas, two or more antennas may be connected.
  • MIMO multi-input multi-output
  • the UE operates as the transmitter 10 in the uplink and the receiver 20 in the downlink.
  • the BS operates as the receiving device 20 in the uplink and the transmitting device 10 in the downlink.
  • the processor, the RF unit and the memory provided in the UE will be referred to as a UE processor, the UE RF unit and the UE memory, respectively, and the processor, the RF unit and the memory provided in the BS will be referred to as a BS processor, a BS RF unit and a BS memory, respectively.
  • the BS processor controls the BS RF unit to transmit the PDCCH and / or PDSCH
  • the UE processor controls the UE RF unit to receive the PDCCH and / or PDSCH.
  • the UE processor controls the BS RF unit to transmit the PUCCH and the PUSCH
  • the BS processor controls the BS RF unit to receive the PUCCH and the PUSCH.
  • the UE processor of the present invention channel-codes the bit sequence corresponding to the UCI to generate an output bit sequence. For example, if the payload size of the UCI is larger than a specific size (eg, 11), the UE processor may perform bit sequence a_0, a_1, corresponding to the UCI (eg, ACK / NACK, SR, RI, etc.). ..., a_ (N PUCCHformat3 A / N- 1) is divided into two segments. Referring to FIG.
  • the UE processor inputs an input bit sequence a_0, a_1, ..., a_ (N PUCCHformat3 A / N- 1) corresponding to a UCI to be transmitted at one time, using two RM encoding segments [a_0, a_2, ..., a_ (ceil (N PUCCHformat3 A / N / 2) -1)] (hereafter segment 1) and [a_ceil (N PUCCHformat3 A / N / 2), a_ (ceil (N PUCCHformat3 A / N / 2) ) +1), ..., a_ (N PUCCHformat3 A / N- 1)] (hereinafter referred to as segment 2), and RM coding may be applied to segments 1 and 2, respectively.
  • the UE processor is a UCI bit sequence [a_0, a_1, ..., a_ (ceil (N PUCCHformat3 A / N / 2) -1)] is a UCI bit sequence [a_ceil (N PUCCHformat3 A / N / 2), a_ (ceil (N PUCCHformat3 A / N / 2) +1), ..., a_ (N PUCCHformat3 A / N- 1)] may be channel coded according to Equation 14, respectively. have.
  • the UE processor may modulate the output bit sequence to generate modulation symbols and map the modulation symbols to a plurality of antenna ports by a predetermined number of consecutive modulation symbols. Since each of the antenna ports is associated with one transform precoder, the UE processor distributes the modulation symbols to the plurality of transform precoders by a predetermined number of consecutive modulation symbols, thereby distributing the modulation symbols to a predetermined number of consecutive. Each modulation symbol may be mapped to the plurality of antenna ports.
  • the UE processor may apply complex precoding to modulation symbols mapped to each antenna port, output complex symbols, and map the complex symbols to time-frequency resources.
  • the UE processor may be configured to map complex symbols mapped to different antenna ports to orthogonal frequency resources in the frequency domain. That is, the UE processor may be configured to allocate frequency resources orthogonal to each other to antenna ports participating in the transmission of UCI. For example, the UE processor may be configured to map frequency resources orthogonal to each other on a collection of complex symbols mapped to antenna port 0 and a collection of complex symbols mapped to antenna port 1.
  • the UE processor generates a complex time-domain SC-FDM signal by applying IFFT to complex symbols per antenna port, and transmits the SC-FDM signal on a corresponding antenna port through a corresponding frequency resource within a corresponding time resource.
  • the RF unit can be controlled.
  • the processor 11 in the transmitter 100 includes a channel encoder (not shown), a scrambler 301 and a modulation mapper 302, a layer mapper 303, a precoder 304, and a resource element mapper. 305, an OFDM signal generator 306.
  • the transmitter 10 may include one or more channel encoders (not shown) for channel encoding the UCI.
  • the channel encoder may output an encoded bit sequence by applying a (30, O) RM code to the UCI.
  • the transmitter 10 may include a plurality of channel encoders for channel encoding of each of a plurality of segments obtained by splitting UCI.
  • the transmitter 10 may transmit one or more codewords. Coded bits in each codeword are scrambled by the scrambler 301 and transmitted on a physical channel. Codewords are also referred to as data streams and are equivalent to data blocks provided by the MAC layer. The data block provided by the MAC layer may also be referred to as a transport block.
  • the scrambled bits are modulated into complex-valued modulation symbols by the modulation mapper 302.
  • the modulation mapper 302 may modulate the scrambled bits according to a predetermined modulation scheme and place them as complex modulation symbols representing positions on a signal constellation. There is no restriction on a modulation scheme, and m-Phase Shift Keying (m-PSK) or m-Quadrature Amplitude Modulation (m-QAM) may be used to modulate the encoded data.
  • m-PSK m-Phase Shift Keying
  • m-QAM m-Quadrature Amplitude Modulation
  • the complex modulation symbol is mapped to one or more transport layers by the layer mapper 303.
  • the layer mapper 303 may correspond to a divider for dividing the complex modulation symbols into a plurality of antenna ports according to an embodiment of the present invention.
  • SC-FDM access SC-FDMA
  • SC-FDMA SC-FDM access
  • the processor 11 of the transmitter 10 may include a conversion precoder.
  • a Discrete Fourier Transform (DFT) module 307 (or a Fast Fourier Transform (FFT) module) may be used as the transform precoder.
  • the transform precoder generates complex symbols by performing a Discrete Fourier Transform (DFT) or a Fast Fourier Transform (FFT) (hereinafter referred to as DFT / FFT) on the complex modulation symbols divided for mapping to each antenna port.
  • DFT Discrete Fourier Transform
  • FFT Fast Fourier Transform
  • the complex symbols are precoded by the precoder 304 for transmission on the antenna port.
  • the precoder 304 processes the complex symbols in a MIMO scheme according to a multiple transmit antenna to output antenna specific symbols and distributes the antenna specific symbols to the corresponding resource element mapper 305. That is, mapping of the transport layer to the antenna port is performed by the precoder 304.
  • the precoder 304 may be output to the matrix z of the layer mapper 303, an output x N t ⁇ M t precoding matrix W is multiplied with N t ⁇ M F of the.
  • the precoder 304 may distribute complex symbols input from one transform precoder to one resource element mapper associated with one antenna port. That is, the precoder 304 of the present invention may be configured to map all the complex symbols input from one transform precoder to the same antenna port.
  • the resource element mapper 305 maps / assigns the complex modulation symbol for each antenna port to the appropriate resource elements.
  • the resource element mapper 305 may assign a complex modulation symbol for each antenna port to an appropriate subcarrier and multiplex it according to a user.
  • the resource element mapper 305 may be configured to map different orthogonal frequency resources to complex symbol sequences from different transform precoders.
  • An OFDM signal generator 306 modulates a complex modulation symbol for each antenna port, that is, an antenna specific symbol by an OFDM or SC-FDM scheme, to perform a complex-valued time domain (OFDM) orthogonal frequency division multiplexing (OFDM).
  • a symbol signal or a complex time domain SC-FDM (Single Carrier Frequency Division Multiplexing) symbol signal is generated.
  • the OFDM signal generator 306 may perform an inverse fast fourier transform (IFFT) on an antenna specific symbol, and a cyclic prefix (CP) may be inserted into a time domain symbol on which the IFFT is performed.
  • the OFDM symbol is transmitted to the receiving apparatus through each transmit antenna through digital-to-analog conversion, frequency upconversion, and the like.
  • the OFDM signal generator 306 may include an IFFT module and a CP inserter, a digital-to-analog converter (DAC), a frequency up-converter, and the like.
  • the signal processing of the receiver 20 is the reverse of the signal processing of the transmitter 10.
  • the processor 21 of the receiving device 20 performs decoding and demodulation on the radio signal received through the RF unit 23 from the outside.
  • the RF unit 23 may include N r multiple receive antennas, and each of the signals received through the receive antennas are restored to a baseband signal, and then transmitted by the transmitter 10 through multiplexing and MIMO demodulation.
  • the data string is restored to the intended data sequence.
  • the processor 21 may include a signal restorer for restoring a received signal to a baseband signal, a multiplexer for combining and multiplexing the received processed signal, and a channel demodulator for demodulating the multiplexed signal sequence with a corresponding codeword. .
  • the signal restorer, the multiplexer, and the channel demodulator may be composed of one integrated module or each independent module for performing their functions. More specifically, the signal restorer is an analog-to-digital converter (ADC) for converting an analog signal into a digital signal, a CP remover for removing a CP from the digital signal, and a fast fourier transform (FFT) to the signal from which the CP is removed.
  • FFT module for outputting a frequency domain symbol by applying a, and may include a resource element demapper (equalizer) to restore the frequency domain symbol to an antenna-specific symbol (equalizer).
  • the antenna specific symbol is restored to a transmission layer by a multiplexer, and the transmission layer is restored to a codeword intended to be transmitted by the transmission apparatus 10 by a channel demodulator.
  • the processor 21 when the receiver 20 receives a signal transmitted by the SC-FDMA method, the processor 21 further includes an Inverse Discrete Fourier Transform (IDFT) module (or IFFT module). Include.
  • IDFT Inverse Discrete Fourier Transform
  • the IDFT / IFFT module performs IDFT / IFFT on the antenna specific symbol recovered by the resource element demapper and outputs the IDFT / IFFT symbol to the multiplexer.
  • the scrambler 301, the modulation mapper 302, the layer mapper 303, the transform precoder 307, the precoder 304, the resource element mapper 305, and the OFDM signal generator 306 are provided.
  • the RF unit 13 of the transmitter 10 includes these components.
  • the signal restorer, the multiplexer, the channel demodulator, etc. are described as being included in the processor 21 of the receiver 20, but these components are included in the RF unit 23 of the receiver 20. It is also possible.
  • orthogonal frequency resources are mapped to complex symbols assigned to different antenna ports.
  • QPSK symbols from segment 1 and QPSK symbols from segment 2 are evenly distributed to each antenna port. Since antenna ports use frequency resources that are orthogonal to each other, according to the present invention, transmit diversity gain can be obtained by applying FSTD to dual RM encoded UCI.
  • FIG. 20 shows an experimental example of ACK / NACK transmission performance according to the present invention.
  • FIG. 20 illustrates a simulation result of ACK / NACK transmission according to a simple combination of dual RM encoding and FSTD (hereinafter referred to as FSTD1) and an FSTD (hereinafter referred to as FSTD2) according to the present invention.
  • FSTD1 dual RM encoding and FSTD
  • FSTD2 an FSTD
  • a probability ie, DTX to ACK error rate in which DTX (Discontinuous Transmission) is determined as ACK is defined as follows.
  • Detector type A also called joint ML (Maximum Likelihood) detector using RS and data
  • signals from RS and data are coherently accumulated.
  • the signals for each slot and transmit / secure antenna port accumulate non-coherently.
  • ML detection is performed by:
  • N RX , N slot and N TX represent the number of receive antenna ports, the number of slots in a subframe, and the number of transmit antenna ports, respectively.
  • h c n_tx h n_tx, RS + h c n_tx, Data .
  • h n_tx, RS denotes a channel estimated for antenna port n_tx on an RS symbol
  • h c n_tx, Data denotes a channel estimated for antenna port n_tx by a codeword c on a data symbol.
  • Normal ML detection is applied at the data symbols after channel estimation for the RS symbols. For each slot and transmission (Tx) / reception (Rx) antenna port, the detector coherently accumulates each codeword output.
  • Table 6 lists the remaining parameters used in the simulation.
  • SNR Signal to Noise Ratio
  • the FSTD i.e., FSTD2
  • the FSTD has better transmission performance than 1Tx when the number of ACK / NACK bits is 11 bits or less, and has similar performance to that of FSTD1. It can be seen that it has excellent performance.
  • Embodiments of the present invention may be used in a base station, relay or user equipment, and other equipment in a wireless communication system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon la présente invention, un nombre prédéterminé de symboles de modulation consécutifs appartenant à une séquence de symboles de modulation correspondant à des informations de commande de liaison montante sont mappés avec des ports d'antenne, et des ressources de fréquences orthogonales entre elles sont mappées avec des ports d'antenne différents les uns des autres. Selon la présente inversion, des gains de diversité en transmission peuvent être obtenus pendant la transmission d'une grande quantité d'informations de commande de liaison montante.
PCT/KR2012/006266 2011-08-07 2012-08-07 Procédé et équipement utilisateur pour la transmission d'informations de commande de liaison montante WO2013022260A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161515963P 2011-08-07 2011-08-07
US61/515,963 2011-08-07

Publications (2)

Publication Number Publication Date
WO2013022260A2 true WO2013022260A2 (fr) 2013-02-14
WO2013022260A3 WO2013022260A3 (fr) 2013-05-30

Family

ID=47669070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/006266 WO2013022260A2 (fr) 2011-08-07 2012-08-07 Procédé et équipement utilisateur pour la transmission d'informations de commande de liaison montante

Country Status (1)

Country Link
WO (1) WO2013022260A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016114631A1 (fr) * 2015-01-16 2016-07-21 삼성전자 주식회사 Procédé de formation de faisceau et appareil s'y rapportant
WO2018030858A1 (fr) * 2016-08-11 2018-02-15 엘지전자 주식회사 Procédé destiné à un terminal de transmission d'informations de commande de liaison montante et terminal utilisant ce procédé
CN111447688A (zh) * 2017-07-08 2020-07-24 上海朗帛通信技术有限公司 一种被用于动态调度的用户设备、基站中的方法和装置
CN116114227A (zh) * 2020-09-30 2023-05-12 华为技术有限公司 一种分集通信的方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060045660A (ko) * 2004-04-14 2006-05-17 삼성전자주식회사 직교 주파수 분할 다중 접속 통신 시스템에서 상향 링크제어 정보 전송 방법 및 장치
KR20100019934A (ko) * 2008-08-11 2010-02-19 엘지전자 주식회사 제어정보의 상향링크 전송 방법
KR20110009025A (ko) * 2009-07-20 2011-01-27 엘지전자 주식회사 상향링크 제어정보 전송 방법 및 장치
KR20110084471A (ko) * 2010-01-17 2011-07-25 엘지전자 주식회사 무선 통신 시스템에서 상향링크 제어 정보 전송 방법 및 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060045660A (ko) * 2004-04-14 2006-05-17 삼성전자주식회사 직교 주파수 분할 다중 접속 통신 시스템에서 상향 링크제어 정보 전송 방법 및 장치
KR20100019934A (ko) * 2008-08-11 2010-02-19 엘지전자 주식회사 제어정보의 상향링크 전송 방법
KR20110009025A (ko) * 2009-07-20 2011-01-27 엘지전자 주식회사 상향링크 제어정보 전송 방법 및 장치
KR20110084471A (ko) * 2010-01-17 2011-07-25 엘지전자 주식회사 무선 통신 시스템에서 상향링크 제어 정보 전송 방법 및 장치

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016114631A1 (fr) * 2015-01-16 2016-07-21 삼성전자 주식회사 Procédé de formation de faisceau et appareil s'y rapportant
US10454552B2 (en) 2015-01-16 2019-10-22 Samsung Electronics Co., Ltd. Beamforming method and apparatus therefor
WO2018030858A1 (fr) * 2016-08-11 2018-02-15 엘지전자 주식회사 Procédé destiné à un terminal de transmission d'informations de commande de liaison montante et terminal utilisant ce procédé
US10880915B2 (en) 2016-08-11 2020-12-29 Lg Electronics Inc. Method for terminal for transmitting uplink control information in wireless communication system, and terminal utilizing method
CN111447688A (zh) * 2017-07-08 2020-07-24 上海朗帛通信技术有限公司 一种被用于动态调度的用户设备、基站中的方法和装置
CN111447688B (zh) * 2017-07-08 2023-04-07 上海琦予通信科技服务中心 一种被用于动态调度的用户设备、基站中的方法和装置
CN116114227A (zh) * 2020-09-30 2023-05-12 华为技术有限公司 一种分集通信的方法及装置
EP4210237A4 (fr) * 2020-09-30 2023-10-25 Huawei Technologies Co., Ltd. Procédé et appareil de communication en diversité

Also Published As

Publication number Publication date
WO2013022260A3 (fr) 2013-05-30

Similar Documents

Publication Publication Date Title
WO2019194619A1 (fr) Procédé d'émission ou de réception de signal dans un système de communication sans fil et appareil associé
WO2018208087A1 (fr) Procédé d'émission de signal de liaison montante dans un système de communication sans fil et appareil correspondant
WO2018174450A1 (fr) Procédé de transmission ou de réception de signal de liaison montante pour terminal prenant en charge une pluralité d'intervalles de temps de transmission, une pluralité d'intervalles de sous-porteuse, ou une pluralité de temps de traitement dans un système de communication sans fil, et dispositif associé
WO2020096438A1 (fr) Procédé de génération d'un livre de codes harq-ack dans un système de communication sans fil, et dispositif associé
WO2019216729A1 (fr) Procédé de multiplexage d'informations de commande de liaison montante dans un système de communication sans fil et appareil utilisant ledit procédé
WO2017105135A2 (fr) Procédé de transmission ou de réception de signal de référence de liaison montante dans un système de communications sans fil, et appareil associé
WO2017171528A1 (fr) Procédé pour une communication v2x effectuée au moyen d'un terminal dans un système de communication sans fil, et terminal l'utilisant
WO2017003265A1 (fr) Procédé et dispositif pour émettre un signal dans un système de communication sans fil
WO2017078326A1 (fr) Procédé pour transmettre un canal de commande en liaison montante dans un système de communication sans fil et dispositif associé
WO2019143131A1 (fr) Procédé et dispositif d'émission d'un signal montant dans un système de communication sans fil
WO2019156466A1 (fr) Procédé de transmission ou de réception de signal dans un système de communication sans fil et dispositif associé
WO2018164452A1 (fr) Procédé de réception ou de transmission de signal descendant dans un système de communication sans fil et appareil associé
WO2013122384A1 (fr) Procédé de communication de dispositif à dispositif et dispositif destiné à le mettre en œuvre
WO2013027963A2 (fr) Procédés de transmission et de réception d'informations de commande de liaison montante, équipement utilisateur et station de base
WO2017043916A1 (fr) Procédé et appareil de transmission d'un signal dans un système de communication sans fil
WO2010123331A2 (fr) Procédé et appareil pour transmettre et recevoir un signal de commande pour fusionner des porteuses lors d'une transmission
WO2012144801A2 (fr) Dispositif et procédé de transmission de signal dans un système de communication sans fil
WO2012169753A2 (fr) Procédé de transmission de données de contrôle sur la liaison montante et équipement d'utilisateur, et procédé de réception de données de contrôle sur la liaison montante et station de base
WO2013043026A2 (fr) Équipement utilisateur et procédé de transmission d'un signal de liaison montante, et station de base et procédé destinés à recevoir un signal de liaison montante
WO2011111977A2 (fr) Procédé de transmission d'informations de commande de liaison montante et dispositif utilisateur
WO2012157987A2 (fr) Procédé permettant de transmettre et de recevoir des informations de commande dans un système de communication sans fil, et appareil correspondant
WO2014123378A1 (fr) Procédé servant à l'émission-réception de signal et appareil correspondant
WO2013002563A2 (fr) Procédé et équipement utilisateur de transmission d'informations d'état de canal et procédé et station de base de réception d'informations d'état de canal
WO2013191519A1 (fr) Procédé d'emission-reception d'un signal de commande et appareil correspondant
WO2013006006A2 (fr) Procédé et appareil de transmission d'un signal dans un système de communication sans fil

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: 12822151

Country of ref document: EP

Kind code of ref document: A2

122 Ep: pct application non-entry in european phase

Ref document number: 12822151

Country of ref document: EP

Kind code of ref document: A2