WO2015149645A1 - Procédé et dispositif d'émission dans un ue et station de base - Google Patents

Procédé et dispositif d'émission dans un ue et station de base Download PDF

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Publication number
WO2015149645A1
WO2015149645A1 PCT/CN2015/075077 CN2015075077W WO2015149645A1 WO 2015149645 A1 WO2015149645 A1 WO 2015149645A1 CN 2015075077 W CN2015075077 W CN 2015075077W WO 2015149645 A1 WO2015149645 A1 WO 2015149645A1
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Prior art keywords
index
signaling
frequency band
carrier
downlink
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PCT/CN2015/075077
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English (en)
Chinese (zh)
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张晓博
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上海朗帛通信技术有限公司
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    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • 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
    • H04L5/0057—Physical resource allocation for CQI
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access

Definitions

  • the base station periodically transmits a downlink RS (for example, CRS or CSI-RS) for CSI estimation when there is no physical layer data transmission, causing large interference to other communication devices on the unlicensed spectrum, and if there is no physical layer data transmission Without the downlink RS for CSI estimation, the application of the DFS technology is greatly limited, for example, it is difficult to implement DFS at the subframe level.
  • a downlink RS for example, CRS or CSI-RS
  • the invention discloses a transmission method on an unlicensed frequency band in a UE, which comprises the following steps:
  • Step A receiving the first signaling, the first signaling includes a first index, the first index indicating that the first downlink RS exists in the first time window;
  • Step B receiving a first downlink RS in a first time window on the first frequency band
  • the first signaling is physical layer signaling
  • the first time window includes N subframes
  • the N is a positive integer.
  • the CSI includes at least one of the following:
  • the CSI feedback mode being applicable to the target CSI
  • the RS resource is applicable to the first downlink RS
  • the PUCCH resource index being applicable to the target CSI
  • the logical cell index is a positive integer less than 8 - the first signaling comprises using 3 bits to represent the carrier logical index and 0 to configure to the primary cell.
  • the second index reuses a CIF-Carrier Indicator Field bit in the legacy DCI.
  • the CSI feedback mode is a mode in CQI-ReportModeAperiodic.
  • the PUCCH resource index cqi-PUCCH-ResourceIndex/cqi-PUCCH-ResourceIndexP1 bearer the mapping to the physical resource is determined according to the scheme of the LTE system - the resource index is replaced See Section 5.4.2 of TS36.211 for a detailed description.
  • the RS resource is configured by csi-RS-r10IEs (information elements).
  • the transport PUCCH of the target CSI is one of PUCCH formats ⁇ 2, 2a, 2b ⁇ .
  • the step B further comprises the following steps:
  • the process is a transmission, and the target CSI is sent on a PUSCH (Physical Uplink Shared Channel), that is, embedded in the physical layer data.
  • PUSCH Physical Uplink Shared Channel
  • the invention discloses a transmission method on an unlicensed frequency band in a base station, which comprises the following steps:
  • the first signaling is sent, the first signaling includes a first index, and the first index indicates that the first downlink RS exists in the first time window;
  • the configuration information includes a logical cell index and a CSI configuration
  • the logical cell index is an integer
  • the first signaling includes a second index
  • the second index is equal to the logical cell index
  • the CSI configuration includes at least one of the following :
  • the CSI feedback mode being applicable to the target CSI
  • the resource of the second downlink RS is configured by the high layer signaling, and the reference resource of the target CSI includes the second downlink RS.
  • the first index is used as the second index, that is, the logical cell index is indicated by the first index.
  • the configuration information is in one-to-one correspondence with the actual carrier configured by the UE.
  • Step A Processing physical layer data according to scheduling information in the first signaling, the processing being transmission or reception;
  • the frequency band of the transmission carrier of the physical layer data is the first frequency band or the frequency band of the carrier of the third index identifier in the first signaling; if the processing is reception, the physical The frequency band of the transmission carrier of the layer data and the frequency band of the transmission carrier of the target CSI are both the frequency bands of the carriers identified by the third index in the first signaling.
  • the first frequency band is one of the following:
  • the downlink RS is distributed on all PRB pairs in the first time window on the first frequency band, and the time-frequency resource occupied by the downlink RS in one PRB pair is one of the following:
  • K1 is one of ⁇ 1, 2, 4, 8 ⁇
  • K2 is one of ⁇ 1, 2, 4 ⁇ .
  • the N is 1.
  • the invention discloses a user equipment, and the user equipment comprises:
  • a second module configured to receive the first downlink RS in a first time window on the first frequency band
  • the third module is used to send the target CSI
  • the first signaling is physical layer signaling
  • the first time window includes N subframes
  • the N is a positive integer
  • the reference resource of the target CSI includes a first downlink RS
  • the first frequency band is one of the following:
  • the first module is also used for at least one of the following:
  • the first module is also used for at least one of the following:
  • the configuration information includes a logical cell index and a CSI configuration
  • the logical cell index is an integer
  • the first signaling includes a second index
  • the second index is equal to the logical cell index
  • the CSI configuration includes at least one of the following :
  • the CSI feedback mode being applicable to the target CSI
  • the RS resource is applicable to the first downlink RS
  • the PUCCH resource index being applicable to the target CSI.
  • the frequency band of the transmission carrier of the physical layer data is the frequency band of the first frequency band or the carrier of the third index identifier in the first signaling; if the processing is transmission, the physical layer data
  • the frequency band of the transmission carrier and the frequency band of the transmission carrier of the target CSI are both the frequency bands of the carriers identified by the third index in the first signaling.
  • the present invention proposes a transmission method and apparatus on the unlicensed frequency band, which schedules the downlink RS for CSI estimation through physical layer signaling.
  • the UE estimates and transmits a target CSI according to the downlink signaling scheduled by the first signaling, where the target CSI is sent on the PUCCH, and the PUCCH resource occupied by the target CSI is used by the second index in the first signaling.
  • the solution proposed by the invention reduces the interference of the periodically transmitted downlink RS on other communication devices on the unlicensed spectrum, and saves the PUCCH resources.
  • the present invention reuses the existing DCI scheme as much as possible, and has better compatibility. It should be noted that although the original intention is for a communication scenario of an unlicensed spectrum, the solution of the present invention is equally applicable to and protects communication on the licensed spectrum.
  • FIG. 1 shows a flow diagram of dynamically scheduling CSI on an unlicensed spectrum, in accordance with one embodiment of the present invention
  • Figure 2 shows a schematic diagram of first signaling in accordance with one embodiment of the present invention
  • FIG. 3 shows a schematic diagram of dynamically scheduling CSI according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram showing dynamic scheduling CSI according to still another embodiment of the present invention.
  • Figure 5 shows a schematic diagram of a first index and a first frequency band, in accordance with one embodiment of the present invention
  • FIG. 7 is a block diagram showing the structure of a processing device in a UE according to an embodiment of the present invention.
  • step S11 the high layer signaling is sent to indicate the configuration information
  • step S12 the first signaling is sent, the first signaling includes a first index, and the first index indicates that the first time exists in the first time window.
  • the row RS in step S13, the first downlink RS is transmitted in the first time window on the first frequency band; in step S14, the target CSI is received.
  • step S21 the high layer signaling is received to obtain configuration information; in step S22, the first signaling is received, the first signaling includes a first index, and the first index indicates that the first time exists in the first time window.
  • the first signaling is physical layer signaling
  • the first time window includes N subframes
  • the N is a positive integer
  • the configuration information includes a logical cell index and a CSI configuration, where the logical cell index is an integer.
  • the first signaling includes a second index, the second index is equal to the logical cell index
  • the CSI configuration includes at least one of the following:
  • the CSI feedback mode being applicable to the target CSI
  • the RS resource is applicable to the first downlink RS
  • the CSI configuration includes the CSI feedback mode and the PUCCH resource index.
  • the N is equal to 1
  • the first time window is a transmission subframe of the first signaling.
  • the reference resource of the target CSI includes a first downlink RS.
  • the first index is used as the second index, that is, the logical cell index is indicated by the first index.
  • Embodiment 2 illustrates a schematic diagram of the first signaling, as shown in FIG.
  • the first signaling includes a first index, a second index, a third index, scheduling information, wherein the second index and the third index are optional - identified by a broken line.
  • Figure 2 depicts the type of information that the first signaling includes. Figure 2 does not limit the location of the type of information in the first signaling unless specifically stated.
  • the base station For the base station, first sending the high layer signaling indication configuration information; then transmitting the first signaling, the first signaling includes a first index, the first index indicating that the first downlink RS exists in the first time window; and then according to the first signaling
  • the scheduling information in the processing processes physical layer data, the processing is transmitting or receiving; then transmitting the first downlink RS in a first time window on the first frequency band; finally receiving the target CSI.
  • the UE For the UE, first receiving the high layer signaling to obtain the configuration information; then receiving the first signaling, where the first signaling includes a first index, the first index indicating that the first downlink RS exists in the first time window; and then according to the first signaling
  • the scheduling information in the processing processes physical layer data, the processing is receiving or transmitting; then receiving the first downlink RS in a first time window on the first frequency band; finally transmitting the target CSI.
  • the first signaling is physical layer signaling
  • the first time window includes N subframes
  • the N is a positive integer.
  • the configuration information includes a logical cell index and an CSI configuration
  • the logical cell index is an integer
  • the logical cell index is indicated by a first index or a second index
  • the CSI configuration includes at least one of the following:
  • the CSI feedback mode being applicable to the target CSI
  • the RS resource is applicable to the first downlink RS
  • the PUCCH resource index being applicable to the target CSI.
  • the frequency band of the transmission carrier of the physical layer data is the first frequency band or the frequency band of the carrier of the third index identifier in the first signaling; if the processing is reception, The frequency band of the transmission carrier of the physical layer data and the frequency band of the transmission carrier of the target CSI are both the frequency bands of the carriers identified by the third index in the first signaling.
  • the frequency band of the transmission carrier of the physical layer data is the frequency band of the first frequency band or the carrier of the third index identifier in the first signaling; if the processing is transmission, The frequency band of the transmission carrier of the physical layer data and the frequency band of the transmission carrier of the target CSI are the frequency bands of the carrier of the third index identifier in the first signaling.
  • the first signaling is sent (the carrier and the subframe identified by g1), the first signaling includes a first index, and the first index indicates that the first downlink RS exists in the first time window;
  • the scheduling information (carrier and subframe identified in g2) transmits physical layer data; then transmits the first downlink RS in the first time window on the first frequency band (as indicated by g2); finally (the carrier and the sub-identified in g3) Frame) receives the target CSI.
  • the first signaling is physical layer signaling
  • the first time window includes 1 subframe.
  • the frequency band of the transmission carrier of the physical layer data is the first frequency band.
  • the first frequency band is a frequency band of a carrier scheduled by scheduling information in the first signaling.
  • the target CSI is transmitted on the PUCCH.
  • the UE For the UE, first (at the g4 identified carrier and subframe) receiving high layer signaling to obtain configuration information; then receiving (in the g4 identified carrier and subframe) the first signaling, the first signaling includes a first index, the first index indication a first downlink RS exists in the first time window; then (the carrier and subframe identified in g4) receives physical layer data according to scheduling information in the first signaling; and then in a first time window on the first frequency band (eg G4) receives the first downlink RS; finally (transmits the carrier and subframe identified by g5) the target CSI.
  • the first signaling is sent (the carrier and the subframe identified by the g6), the first signaling includes a first index, and the first index indicates that the first time exists in the first time window.
  • Row RS then transmitting physical layer data according to scheduling information in the first signaling (carrier and subframe identified in g7); then transmitting the first downlink in a first time window on the first frequency band (as indicated by g8) RS; finally (the carrier and subframe identified in g9) receives the target CSI.
  • the first signaling is received (the carrier and the subframe identified by the g6), the first signaling includes a first index, and the first index indicates that the first downlink RS exists in the first time window;
  • the scheduling information (carrier and subframe identified in g7) receives physical layer data; then receives the first downlink RS in the first time window on the first frequency band (as indicated by g8); finally (the carrier identified in g9) And subframe) send the target CSI.
  • the first signaling is physical layer signaling
  • the first time window includes 1 subframe.
  • the configuration information includes a logical cell index and an CSI configuration, the logical cell index is an integer, the logical cell index is indicated by a second index in the first signaling, and the CSI configuration includes At least one of the following:
  • the CSI feedback mode being applicable to the target CSI
  • the second index in the first signaling in the subframes #0 to 4 and the second index in the first signaling in the subframes #5 to 9 are the same, and thus the target CSI and the subframe g9 in the subframe g5.
  • the target CSI in the middle obeys the same CSI configuration.
  • the first frequency band is empty, that is, the first downlink RS does not exist in the first time window; when the first index is '01', the first frequency band is the frequency band of the first carrier combination; When an index is '10', the first frequency band is a frequency band of the second carrier combination; when the first index is '11', the first frequency band is a frequency band of the third carrier combination.
  • the carrier index in the carrier combination is configured by high layer signaling.
  • Embodiment 6 exemplifies a transmission subframe of the first downlink RS and the second downlink RS, as shown in FIG.
  • the square marked by the diagonal line is the transmission subframe of the second downlink RS
  • the square identified by the back oblique line is the transmission subframe of the first downlink RS.
  • the first signaling is first sent, where the first signaling includes a first index, the first index indicates that the first downlink RS exists in the first time window; then the second downlink RS is sent on the first frequency band (slashed side) The cell is shown); then the first downlink RS is transmitted in the first time window on the first frequency band (shown by a backslash square); the target CSI is finally received.
  • the first signaling is physical layer signaling
  • the first time window includes N subframes, and the N is a positive integer.
  • the resources of the second downlink RS are configured by high layer signaling, and the second downlink RS is Periodically transmitted (the transmission period is 10 subframes), and the reference resources of the target CSI include the first downlink RS and the second downlink RS.
  • the first frequency band is one of the following:
  • the resources of the second downlink RS are configured by a CSI-RS-Config IE and a csi-SubframePatternConfig-r10IE according to a scheme of LTE, and the target CSI is transmitted on a PUCCH, which is a format ⁇ For one of 2, 2a, 2b ⁇ , the occupied PUCCH resource index is determined according to the PUCCH resource allocation method of the P-CSI in LTE.
  • the N is 4, and the first time window includes 4 consecutive subframes (as indicated by 4 consecutive backslash squares).
  • Embodiment 7 exemplifies a structural block diagram of a user equipment, as shown in FIG.
  • the user equipment 200 is mainly composed of a first receiving module 201, a second receiving module 202, and a first sending module 203, a first first sending module 203.
  • the first receiving module 201 is configured to receive the first signaling and at least one of the following:
  • the first signaling includes a first index, where the first index indicates that the first downlink RS exists in the first time window; the second receiving module 202 is configured to receive the first downlink RS in the first time window on the first frequency band; The first sending module 203 is configured to send a target CSI.
  • the CSI feedback mode being applicable to the target CSI
  • the RS resource is applicable to the first downlink RS
  • the PUCCH resource index being applicable to the target CSI.
  • the frequency band of the transmission carrier of the physical layer data is the frequency band of the first frequency band or the carrier of the third index identifier in the first signaling; if the processing is transmission, the physical layer data
  • the frequency band of the transmission carrier and the frequency band of the transmission carrier of the target CSI are both the frequency bands of the carriers identified by the third index in the first signaling.
  • the process is transmission
  • the scheduling information in the first signaling is one type of scheduling information in the DCI format ⁇ 0, 4 ⁇
  • the target CSI is transmitted-embedded on the PUSCH. Go to the physical layer data.
  • the first signaling is physical layer signaling
  • the first time window includes N subframes
  • the N is a positive integer
  • the reference resource of the target CSI includes a first downlink RS
  • the first frequency band is the first The frequency band of one carrier combination identified by the index, the carrier combination comprising one or more carriers, the carrier combination being configured by higher layer signaling.
  • the second sending module 301 is further configured to:
  • the configuration information includes a logical cell index and a CSI configuration
  • the logical cell index is an integer
  • the first signaling includes a second index, a second index, and the like.
  • the CSI configuration includes at least one of the following:
  • the RS resource is applicable to the first downlink RS
  • the PUCCH resource index being applicable to the target CSI.

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

Abstract

La présente invention concerne un procédé et un dispositif d'émission in un UE, ainsi qu'une station de base. Dans le but de pallier le problème des solutions traditionnelles d'indicateurs d'état de canaux (CSI) sur un spectre de fréquences non soumis à autorisation, un signal de référence (RS) en liaison descendante pour l'estimation de CSI est programmé par une signalisation dans la couche physique. Dans un mode de réalisation, l'UE estime et envoie un CSI visé en fonction du RS en liaison descendante programmé par une première signalisation. Le CSI visé est émis sur le canal physique de commande en liaison montante (PUCCH), et la ressource de PUCCH occupée par le CSI visé est indiquée par un deuxième indice dans la première signalisation. La solution apportée par la présente invention réduit le brouillage du RS en liaison descendante envoyé périodiquement à d'autres dispositifs de communication sur le spectre de fréquences non soumis à autorisation, et économise la ressource de PUCCH. De plus, la présente invention tente de réutiliser dans toute la mesure du possible les solutions existantes d'indicateur de commande en liaison descendante (DCI), et présente une meilleure compatibilité. Il convient de clarifier que les solutions de la présente invention peuvent également s'appliquer aux communications sur le spectre de fréquences soumis à autorisation, bien que l'intention vise à l'origine le champ du spectre de fréquences non soumis à autorisation communication.
PCT/CN2015/075077 2014-03-31 2015-03-26 Procédé et dispositif d'émission dans un ue et station de base WO2015149645A1 (fr)

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CN201410126623.3A CN104955111B (zh) 2014-03-31 2014-03-31 一种非授权频带上的传输方法和装置

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WO2017198021A1 (fr) * 2016-05-15 2017-11-23 上海朗帛通信技术有限公司 Procédé et dispositif de communication sans fil
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CN110740519A (zh) * 2016-08-05 2020-01-31 上海朗帛通信技术有限公司 一种无线传输中的方法和装置
CN111586871A (zh) * 2018-02-13 2020-08-25 上海朗帛通信技术有限公司 一种用于无线通信的通信节点中的方法和装置
CN112615658A (zh) * 2016-07-25 2021-04-06 上海朗帛通信技术有限公司 一种无线传输中的方法和装置
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CN114374419A (zh) * 2018-02-09 2022-04-19 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置

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JPWO2017135340A1 (ja) * 2016-02-04 2018-11-29 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局及び無線通信方法
WO2017147760A1 (fr) * 2016-02-29 2017-09-08 华为技术有限公司 Procédé et système de transmission de données à un spectre de fréquences non autorisé et dispositif de terminal
CN107306170B (zh) * 2016-04-18 2021-04-30 中兴通讯股份有限公司 一种上行辅助信息传输方法、装置及系统
CN111585627A (zh) * 2016-06-22 2020-08-25 上海朗帛通信技术有限公司 一种无线通信中的方法和装置
CN109155710A (zh) * 2016-06-22 2019-01-04 惠州Tcl移动通信有限公司 使用非授权频谱的上行传输方法、分配方法、用户设备及基站
CN107567099A (zh) * 2016-06-30 2018-01-09 华为技术有限公司 上行控制信道发送与接收方法及装置
CN107734685B (zh) 2016-08-12 2021-08-20 华为技术有限公司 一种控制信道传输方法、装置及系统
CN108207029B (zh) * 2016-12-18 2020-05-26 上海朗帛通信技术有限公司 一种ue、基站中的方法和设备
CN108811124B (zh) * 2017-05-05 2020-12-01 华为技术有限公司 信息发送的方法及其装置和信息接收的方法及其装置
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