WO2013027967A2 - Procédés de transmission et de réception d'informations de commande de liaison montante, équipement utilisateur et station de base - Google Patents

Procédés de transmission et de réception d'informations de commande de liaison montante, équipement utilisateur et station de base Download PDF

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Publication number
WO2013027967A2
WO2013027967A2 PCT/KR2012/006506 KR2012006506W WO2013027967A2 WO 2013027967 A2 WO2013027967 A2 WO 2013027967A2 KR 2012006506 W KR2012006506 W KR 2012006506W WO 2013027967 A2 WO2013027967 A2 WO 2013027967A2
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WO
WIPO (PCT)
Prior art keywords
pucch resource
pucch
format
ack
information
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PCT/KR2012/006506
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English (en)
Korean (ko)
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WO2013027967A3 (fr
Inventor
김학성
서한별
김기준
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엘지전자 주식회사
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Publication of WO2013027967A2 publication Critical patent/WO2013027967A2/fr
Publication of WO2013027967A3 publication Critical patent/WO2013027967A3/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements

Definitions

  • Such a multi-node system can be viewed as a kind of multiple input multiple output (MIMO) system in that distributed nodes can simultaneously communicate with a single or multiple user devices by transmitting and receiving different streams.
  • MIMO multiple input multiple output
  • the multi-node system transmits signals using nodes distributed in various locations, the transmission area that each antenna should cover is reduced as compared to the antennas provided in the existing centralized antenna system. Therefore, compared to the existing system implementing the MIMO technology in the centralized antenna system, in the multi-node system, the transmission power required for each antenna to transmit a signal can be reduced.
  • the transmission distance between the antenna and the user equipment is shortened, path loss is reduced, and high-speed data transmission is possible.
  • first indication information indicating the first PUCCH resource region and second indication information indicating the second PUCCH resource region may be further transmitted from the base station to the user equipment.
  • FIG. 1 shows an example of a radio frame structure used in a wireless communication system.
  • FIG. 4 illustrates an example of an uplink (UL) subframe structure used in a 3GPP LTE / LTE-A system.
  • FIG. 7 illustrates an example of determining a dynamic PUCCH resource according to an embodiment of the present invention.
  • embodiments of the present invention regarding a method for performing data cooperative transmission using some or all of a plurality of nodes may be applied to various kinds of multi-node systems.
  • a node generally refers to an antenna group spaced apart from another node by a predetermined distance or more
  • embodiments of the present invention described later may be applied even when the node means any antenna group regardless of the interval.
  • the eNB may control the node configured as the H-pol antenna and the node configured as the V-pol antenna, and thus embodiments of the present invention may be applied. .
  • FIG 3 illustrates a downlink (DL) subframe structure used in a 3GPP LTE / LTE-A system.
  • 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
  • the DCI format that can be transmitted to the UE depends on the transmission mode (TM) configured in the UE.
  • TM transmission mode
  • not all DCI formats may be used for a UE configured in a specific transmission mode, but only certain DCI format (s) corresponding to the specific transmission mode may be used.
  • One PDCCH candidate corresponds to 1, 2, 4, or 8 CCEs according to a CCE aggregation level.
  • the eNB 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 number of DCI formats is defined smaller than the type of control information transmitted using the PDCCH.
  • the DCI format includes a plurality of different information fields. The type of the information field, the number of information fields, the number of bits of each information field, etc. vary according to the DCI format. In addition, the size of control information matched to the DCI format varies according to the DCI format. Any DCI format may be used for transmitting two or more kinds of control information.
  • PUCCH resources for transmission of CSI, SPS ACK / NACK, SR, etc. are explicitly semi-statically reserved to the UE by an upper layer signal.
  • a PUCCH resource dynamically determined in association with a PDCCH is specifically called a dynamic PUCCH resource or an implicit PUCCH resource, and semi-statically refers to a PUCCH resource explicitly configured by a higher layer signal. It is called a (semi-static) PUCCH resource or explicit PUCCH resource.
  • ACK / NACK signals are transmitted through different resources consisting of different cyclic shifts (frequency domain codes) and orthogonal cover codes (time domain spreading codes) in a computer-generated constant amplitude zero auto correlation (CG-CAZAC) sequence.
  • CG-CAZAC constant amplitude zero auto correlation
  • OC includes, for example, Walsh / Discrete Fourier Transform (DFT) orthogonal code.
  • DFT Discrete Fourier Transform
  • An orthogonal sequence (eg, [w0, w1, w2, w3]) can be applied in any time domain (after Fast Fourier Transform (FFT) modulation) or in any frequency domain (prior to FFT modulation).
  • the present invention provides a method for efficiently operating the PUCCH resources under a CoMP situation in which the downlink cell and the uplink cell may be different.
  • the UE may transmit the PUCCH by applying the parameter for the fallback DCI when detecting the fallback DCI format, and transmit the PUCCH by applying the parameter for the TM dependent DCI when detecting the TM-dependent DCI format.
  • the eNB may transmit a DMRS sequence, a power control parameter, or the like, to a DCI format (eg, DCI format 0) for a fallback PUSCH transmission and a DCI format (eg, to a MIMO transmission) for TM-dependent PUSCH transmission (eg, DCI format 4) may be configured separately for each and signaled to the UE.
  • the UE may perform PUSCH transmission by applying a DMRS sequence, a power control parameter, etc. corresponding to the detected DCI format among preconfigured DMRS sequences, power control parameters, and the like.
  • the eNB 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.
  • the fallback DCI format is called DCI format 1A
  • the TM dependent DCI format is called DCI format X
  • the DCI format detected at PCC is called PCC DCI format
  • the DCI format detected at SCC is called DCI format at SCC DCI format.
  • PUCCH resources may be reserved / determined in the PCC as follows. At this time, the PCC PUCCH resource means a PUCCH resource on the PCC.
  • PUCCH resources may be connected to other PUCCH resources explicitly or implicitly according to a specific antenna port, layer, and carrier.
  • the PUCCH resource region 1 and the PUCCH resource region 2 according to the present invention are configured for different cells or reception points.
  • the PUCCH resource region 1 and the PUCCH resource region 2 may be configured based on different cell IDs or may be configured based on the same cell ID and include different PUCCH resources.
  • ACK / NACKs may be transmitted on PUCCH with the same / different cyclic shift (CS) / orthogonal sequence (OCC) applied on the same RB or transmitted with different CS / OCC on the same RB and transmitted on PUCCH.
  • CS cyclic shift
  • OCC orthogonal sequence
  • a DCI format is defined for each reception point or a DCI format of the same length is used for all reception points, but if it is actually decoded, there is an indication field indicating what the target reception point is, and thus a PUCCH resource. It is possible for the area to be determined.
  • PUCCH resources may be reserved according to the existing rules for the fallback DCI format, and dynamic PUCCH resources may be configured separately for the DCI format according to the transmission mode according to the present invention.
  • the UE upon detecting the fallback DCI format, determines the dynamic PUCCH resource according to an existing rule, and when detecting the TM dependent DCI format according to the corresponding transmission mode, the UE may determine the dynamic PUCCH resource among the separately configured PUCCH resources.
  • embodiments of the present invention can be extended and applied to the general TM dependent DCI format as well as the DCI format for CoMP mode.
  • FIG. 11 is a block diagram illustrating components of a transmitter 10 and a receiver 20 for carrying out the present invention.
  • 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 UE processor may be configured to select one of the plurality of parameter sets using additional information included in the DCI format.
  • the eNB processor may control the eNB RF unit to transmit information on a parameter set that the UE wants to use for actual transmission from the parameter sets reserved by the eNB for a specific DCI format to the UE through a PDCCH.
  • the eNB processor may use the CIF to indicate one parameter set of a plurality of parameter sets.
  • the UE processor When the UE RF unit receives the PDSCH in DL cell 1 and transmits the PUCCH for the PDSCH toward UL cell 1 which is the same point as the DL cell 1, the UE processor is configured to transmit a PUCCH resource connected to the CCE of the DL cell 1.
  • the UE RF unit may be controlled to transmit UCI (eg, ACK / NACK information) through the PUCCH.
  • UCI eg, ACK / NACK information
  • the UE processor uses a PUCCH resource previously reserved for the UL cell #m to perform PUCCH.
  • the UE RF unit may be controlled to transmit the UCI through.
  • the eNB processor may divide and configure dynamic PUCCH resources into several PUCCH resource regions in advance according to a purpose. For example, one PUCCH resource region may be selected and used among the various PUCCH resource regions according to a DCI format or a transmission mode or higher layer signaling. For example, the collection of certain CCE indexes among the entire CCE indexes may be previously defined as being connected to PUCCH resource region 1 and the collection of remaining CCE indexes to PUCCH resource region 2.
  • the UE processor may decode the DL grant and determine which PUCCH resource region in PUCCH resource region 1 and PUCCH resource region 2 to select a PUCCH resource according to which CCE collection the obtained CCE index belongs to.

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

Abstract

La présente invention comporte une région de ressource PUCCH pour chaque format d'informations de commande de liaison descendante (DCI), qui peuvent être transmises par un seul canal de commande de liaison descendante. Un équipement utilisateur décide quelle ressource PUCCH dans la région de ressource PUCCH sera utilisée pour transmettre un PUCCH selon le format d'informations de commande de liaison descendante qui est détecté. Selon la présente invention, il est possible d'empêcher un risque de collision entre ressources PUCCH, lorsqu'une cellule émettant un signal de liaison descendante et une cellule recevant un signal de liaison montante sont différentes.
PCT/KR2012/006506 2011-08-19 2012-08-16 Procédés de transmission et de réception d'informations de commande de liaison montante, équipement utilisateur et station de base WO2013027967A2 (fr)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
US201161525207P 2011-08-19 2011-08-19
US61/525,207 2011-08-19
US201161527128P 2011-08-25 2011-08-25
US61/527,128 2011-08-25
US201161529219P 2011-08-30 2011-08-30
US61/529,219 2011-08-30
US201161536028P 2011-09-18 2011-09-18
US61/536,028 2011-09-18
US201161539959P 2011-09-27 2011-09-27
US61/539,959 2011-09-27
US201161541045P 2011-09-29 2011-09-29
US61/541,045 2011-09-29

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WO2013027967A2 true WO2013027967A2 (fr) 2013-02-28
WO2013027967A3 WO2013027967A3 (fr) 2013-04-18

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WO2016159681A1 (fr) * 2015-03-31 2016-10-06 삼성전자 주식회사 Procédé et dispositif d'émission de signal de commande en liaison montante dans un système de communication sans fil
WO2017131471A1 (fr) * 2016-01-29 2017-08-03 엘지전자 주식회사 Procédé de transmission/réception d'informations de commande de liaison montante et dispositif permettant son fonctionnement dans un système de communication sans fil acceptant une bande sans licence
WO2017135682A1 (fr) * 2016-02-02 2017-08-10 엘지전자 주식회사 Procédé de transmission d'un canal de commande de liaison montante et équipement utilisateur destiné à exécuter ce procédé
WO2017191963A3 (fr) * 2016-05-02 2018-08-09 엘지전자 주식회사 Procédé et appareil pour réattribuer une ressource pucch en fonction d'un changement d'une opération sps dans un système de communication sans fil
CN109964524A (zh) * 2016-11-16 2019-07-02 株式会社Kt 用于在下一代无线网络中传送和接收上行链路控制数据的方法和装置
CN110225591A (zh) * 2013-03-28 2019-09-10 三星电子株式会社 Tdd通信中用于上行链路-下行链路配置的下行链路信令
CN110235400A (zh) * 2017-02-02 2019-09-13 夏普株式会社 用户设备、基站和通信方法
CN111034097A (zh) * 2017-06-14 2020-04-17 Idac控股公司 可靠控制信令
CN112313899A (zh) * 2018-06-13 2021-02-02 高通股份有限公司 针对传输模式切换的信道状态信息测量与反馈

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Cited By (20)

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CN110225591B (zh) * 2013-03-28 2023-07-11 三星电子株式会社 Tdd通信中用于上行链路-下行链路配置的下行链路信令
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WO2016159681A1 (fr) * 2015-03-31 2016-10-06 삼성전자 주식회사 Procédé et dispositif d'émission de signal de commande en liaison montante dans un système de communication sans fil
WO2017131471A1 (fr) * 2016-01-29 2017-08-03 엘지전자 주식회사 Procédé de transmission/réception d'informations de commande de liaison montante et dispositif permettant son fonctionnement dans un système de communication sans fil acceptant une bande sans licence
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WO2017135682A1 (fr) * 2016-02-02 2017-08-10 엘지전자 주식회사 Procédé de transmission d'un canal de commande de liaison montante et équipement utilisateur destiné à exécuter ce procédé
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WO2017191963A3 (fr) * 2016-05-02 2018-08-09 엘지전자 주식회사 Procédé et appareil pour réattribuer une ressource pucch en fonction d'un changement d'une opération sps dans un système de communication sans fil
CN109964524A (zh) * 2016-11-16 2019-07-02 株式会社Kt 用于在下一代无线网络中传送和接收上行链路控制数据的方法和装置
CN110235400A (zh) * 2017-02-02 2019-09-13 夏普株式会社 用户设备、基站和通信方法
CN111034097A (zh) * 2017-06-14 2020-04-17 Idac控股公司 可靠控制信令
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CN112313899A (zh) * 2018-06-13 2021-02-02 高通股份有限公司 针对传输模式切换的信道状态信息测量与反馈

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