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    ACK/NACK feedback bit number determination method and device
    13.
    发明授权
    ACK/NACK feedback bit number determination method and device 有权

    公开(公告)号：US09705655B2

    公开(公告)日：2017-07-11

    申请号：US14409363

    申请日：2013-06-09

    Applicant: China Academy of Telecommunications Technology

    Inventor： Xuejuan Gao ,  Yanan Lin ,  Zukang Shen ,  Qianqian Si

    IPC: H04B7/00 ,  H04L5/00 ,  H04L1/16 ,  H04L5/14

    CPC classification number: H04L5/0055 ,  H04L1/16 ,  H04L1/1607 ,  H04L5/001 ,  H04L5/0046 ,  H04L5/14 ,  H04L5/1469

    Abstract: A method and device for determining an ACK/NACK feedback bit number, used when carriers having different time division duplex (TDD) uplink/downlink configurations are aggregated for a user equipment or the aggregated carriers includes at least one FDD carrier and at least one TDD carrier, and when the user equipment conducts ACK/NACK feedback on a physical uplink sharing channel (PUSCH) having a corresponding physical downlink control channel (PDCCH), the PDCCH containing a downlink assignment index (DAI) domain. The method comprises: determining whether the carriers grouped by the user equipment contain a first type carrier; if yes, then determining (I) of each carrier c according to a parameter indicating the number of ACK/NACK feedback subframes; if no, then acquiring (II) and the Mc of each carrier c, and selecting the minimum value from (II) and the Mc as the (I) of each carrier c; according to the number of the downlink subframes in each carrier c in need of conducting ACK/NACK feedback on the current uplink subframe, determining the ACK/NACK feedback bit number that the current uplink subframe needs to feed back. The present invention ensures normal operation of a system based on the application scenario.

    DATA TRANSMISSION METHOD, BASE STATION, AND USER EQUIPMENT
    14.
    发明申请
    DATA TRANSMISSION METHOD, BASE STATION, AND USER EQUIPMENT 审中-公开
    数据传输方法，基站和用户设备

    公开(公告)号：US20170006626A1

    公开(公告)日：2017-01-05

    申请号：US15109223

    申请日：2015-01-15

    Applicant: China Academy of Telecommunications Technology

    Inventor： Yanan Lin ,  Zukang Shen ,  Xuejuan Gao ,  Qianqian Si

    IPC: H04W72/12 ,  H04W72/04

    CPC classification number: H04W72/1273 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1289 ,  H04W74/0816

    Abstract: Disclosed is a data transmission method. In one aspect, the method comprises: a base station detecting a preset frequency band, and determining whether an idleness of a first time period exists in a subframe p of the preset frequency band in a preset time segment; and if the detection result is yes, a base station scheduling data on N consecutive subframes starting from a following subframe of the subframe p and transmitting the data, and setting A last symbols of a last subframe among the N consecutive subframes to be idle, N and A being both positive integers. In another aspect, the method comprises: a user equipment detecting downlink control signaling (DCI), the DCI being used for scheduling a user equipment to receive or send data in a. subframe p of a preset frequency band; if the DCI is detected, the user equipment determining a last idle symbol B in the subframe p according to the DCI, B being a nonnegative integer; and the user equipment receiving or sending data in the subframe p of the preset frequency band according to the number B of idle symbols B.

    Abstract translation: 公开了一种数据传输方法。 一方面，该方法包括：基站检测预设频带，并且在预设时间段中确定预置频带的子帧p中是否存在第一时间段的闲置; 如果检测结果为“是”，则基站从子帧p的后续子帧开始的N个连续子帧调度数据，并发送该数据，并将N个连续子帧中的最后一个子帧的最后一个符号设为空闲，N A是正整数。 另一方面，所述方法包括：用户设备检测下行链路控制信令（DCI），所述DCI用于调度用户设备以接收或发送数据。 预置频带的子帧p; 如果检测到DCI，则用户设备根据DCI，B确定子帧p中的最后空闲符号B，其为非负整数; 并且用户设备根据空闲符号B的数量B在预设频带的子帧p中接收或发送数据。

    Carrier aggregation feedback method, device and system for different TDD uplink/downlink configurations
    15.
    发明授权
    Carrier aggregation feedback method, device and system for different TDD uplink/downlink configurations 有权
    载波聚合反馈方法，不同TDD上行/下行配置的设备和系统

    公开(公告)号：US09497011B2

    公开(公告)日：2016-11-15

    申请号：US14398970

    申请日：2013-05-02

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Xuejuan Gao ,  Yanan Lin ,  Zukang Shen

    IPC: H04L5/00 ,  H04L1/18 ,  H04L5/14 ,  H04W72/04

    CPC classification number: H04L5/0055 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/0413

    Abstract: Disclosed are a carrier aggregation feedback method, device and system, relating to communication technologies. The number M of subframes requiring ACK/NACK feedback in a current uplink subframe is determined according to a TDD uplink/downlink configuration that corresponds to each carrier and is used for determining a timing relationship based on which a UE reports ACK/NACK feedback information of the carrier, and then ACK/NACK feedback information transmitted by a terminal device in the current uplink subframe and a candidate channel resource used for channel selection are determined according to the value of M, so as to transmit the ACK/NACK feedback information in the candidate channel resource by using PUCCH format 1b in combination with channel selection.

    Abstract translation: 公开了涉及通信技术的载波聚合反馈方法，装置和系统。 根据与每个载波相对应的TDD上行链路/下行链路配置来确定当前上行链路子帧中需要ACK / NACK反馈的子帧的数量M，并且用于基于哪个UE报告ACK / NACK反馈信息的ACK / NACK反馈信息来确定定时关系 载波，然后由当前上行链路子帧中的终端装置发送的ACK / NACK反馈信息和用于信道选择的候选信道资源根据M的值确定，以便将ACK / NACK反馈信息发送到 使用PUCCH格式1b与频道选择相结合的候选信道资源。

    DCI transmission method and device under cross-band carrier aggregation
    16.
    发明授权
    DCI transmission method and device under cross-band carrier aggregation 有权
    DCI传输方式和设备下的跨频段载波聚合

    公开(公告)号：US09374814B2

    公开(公告)日：2016-06-21

    申请号：US14412608

    申请日：2013-07-04

    Applicant: China Academy of Telecommunications Technology

    Inventor： Xuejuan Gao ,  Yanan Lin ,  Zukang Shen

    IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04L5/14 ,  H04W72/12 ,  H04J3/00 ,  H04L1/00 ,  H04W88/02

    CPC classification number: H04W72/042 ,  H04J3/00 ,  H04L1/0038 ,  H04L1/1896 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/14 ,  H04W72/0453 ,  H04W72/1284 ,  H04W88/02

    Abstract: The present application relates to the field of communications, and disclosed are a DCI transmission method and device under cross-band carrier aggregation. The method is: for LTE-A UE which aggregates carriers having different TDD uplink/downlink configurations, according to a pre-arranged rule or high-layer signaling configuration information, determining whether a DAI and a UL index are contained in a DCI format which is used by a PDCCH for scheduling a PUSCH, and determining a CSS and a USS respectively and separately. Accordingly, it can be ensured that the size of a DCI which is transmitted in a CSS does not change, thus ensuring the normal transmission of common cell information, and at the same time, in a USS, according to the actual needs, a specific bit field in the DCI can be determined rationally, thus supporting the UL multi-frame scheduling and/or the resource overhead control of an ACK/NACK over a PUSCH.

    Abstract translation: 本申请涉及通信领域，并且公开了在跨带载波聚合下的DCI传输方法和设备。 该方法是：对于根据预先规定的规则或高层信令配置信息聚合具有不同TDD上行链路/下行链路配置的载波的LTE-A UE，确定DAI和UL索引是否包含在DCI格式中， 由PDCCH用于调度PUSCH，分别确定CSS和USS。 因此，可以确保在CSS中传输的DCI的大小不变化，从而确保普通小区信息的正常传输，同时在USS中，根据实际需要，具体 可以合理确定DCI中的位字段，从而支持通过PUSCH的UL多帧调度和/或ACK / NACK的资源开销控制。

    Method for implementing HARQ feedback, and method and device for allocating uplink subframe
    17.
    发明授权
    Method for implementing HARQ feedback, and method and device for allocating uplink subframe 有权
    用于实现HARQ反馈的方法，以及用于分配上行链路子帧的方法和装置

    公开(公告)号：US09331819B2

    公开(公告)日：2016-05-03

    申请号：US14388792

    申请日：2013-03-06

    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

    Inventor： Qianqian Si ,  Zukang Shen ,  Yanan Lin ,  Xuejuan Gao

    IPC: H04L1/18 ,  H04L5/14

    CPC classification number: H04L1/1861 ,  H04L5/14

    Abstract: Disclosed are a method for implementing HARQ feedback, and a method and device for allocating an uplink subframe. The method is: determining a TDD uplink/downlink reference configuration used for FDD PDSCH HARQ feedback, and allocating, according to the number of uplink subframes indicated by the TDD uplink/downlink reference configuration in a radio frame, an FDD downlink subframe corresponding to ACK/NACK information borne by an uplink subframe indicated by the TDD uplink/downlink reference configuration to the uplink subframe, so that numbers of FDD downlink subframes corresponding to ACK/NACK information borne by the uplink subframes indicated by the TDD uplink/downlink reference configuration are approximately equal. In this way, ACK/NACK information corresponding to downlink data can be timely and accurately fed back, so as to perform accurate data retransmission, thereby effectively ensuring the system performance.

    Abstract translation: 公开了一种用于实现HARQ反馈的方法，以及用于分配上行链路子帧的方法和设备。 该方法是：确定用于FDD PDSCH HARQ反馈的TDD上行链路/下行链路参考配置，并且根据无线帧中的TDD上行链路/下行链路参考配置指示的上行链路子帧的数量，分配与ACK对应的FDD下行链路子帧 / NACK信息由TDD上行链路/下行链路参考配置指示的上行链路子帧承载到上行链路子帧，使得与由TDD上行链路/下行链路参考配置指示的上行链路子帧所承载的ACK / NACK信息相对应的FDD下行链路子帧的数量为 大致相等。 以这种方式，可以及时准确地反馈与下行链路数据相对应的ACK / NACK信息，从而进行准确的数据重传，从而有效地确保系统性能。

    METHOD AND DEVICE FOR TRANSMITTING UPLINK CONTROL INFORMATION (UCI)
    18.
    发明申请
    METHOD AND DEVICE FOR TRANSMITTING UPLINK CONTROL INFORMATION (UCI) 有权
    用于发送上行控制信息（UCI）的方法和设备

    公开(公告)号：US20150173066A1

    公开(公告)日：2015-06-18

    申请号：US14418777

    申请日：2013-08-02

    Applicant: China Academy of Telecommunications Technology

    Inventor： Xuejuan Gao ,  Yanan Lin ,  Qianqian Si

    IPC: H04W72/04 ,  H04L5/00

    CPC classification number: H04W72/0413 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/06 ,  H04L1/1671 ,  H04L5/001 ,  H04L5/0055

    Abstract: Disclosed are a method and device for transmitting uplink control information (UCI). By applying technical solutions of embodiments of the present invention, implemented is a method for simultaneously transmitting an ACK/NACK and cycle CSI on a channel resource corresponding to a current subframe: dynamically determining, on the basis of a threshold number of bits simultaneously transmitted with the UCI in the current subframe, also of the maximum number of feedback bits and of the minimum number of feedback bits of the ACK/NACK in the current subframe, ACK/NACK bits and CSI bits simultaneously transmitted in the current frame, thus ensuring that the sum of the bits simultaneously transmitted does not exceed the threshold number of bits simultaneously transmitted with the UCI in the current subframe, preventing as much as possible ACK/NACK merging and CSI discarding, and protecting to the maximum extent the accuracy and completeness of UCI transmission.

    Abstract translation: 公开了一种用于发送上行链路控制信息（UCI）的方法和装置。 通过应用本发明的实施例的技术方案，实现了一种在与当前子帧对应的信道资源上同时发送ACK / NACK和周期CSI的方法：基于同时发送的阈值数目，动态地确定 当前子帧中的UCI，也是当前子帧中的ACK / NACK的最大反馈比特数和最小反馈比特数，当前帧中同时发送的ACK / NACK比特和CSI比特，从而确保 同步发送的比特的总和不超过当前子帧与UCI同时发送的阈值数量，可以防止尽可能多的ACK / NACK合并和CSI丢弃，并且最大限度地保护UCI的准确性和完整性 传输。

    Method and device for sending and controlling feedback information
    19.
    发明授权
    Method and device for sending and controlling feedback information 有权

    公开(公告)号：US10555212B2

    公开(公告)日：2020-02-04

    申请号：US15562896

    申请日：2016-03-30

    Applicant: China Academy of Telecommunications Technology

    Inventor： Yanan Lin

    IPC: H04W28/06 ,  H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

    Abstract: Disclosed are a method and device for sending and controlling feedback information, which are used to reduce redundant information in a feedback information sequence so as to decrease transmit power required for feedback information, save required physical resources, improve transmission performance of the feedback information and increase the resource utilization rate of the entire system. A method for sending feedback information provided in the present application comprises: a user equipment (UE) receives indication information sent by a network side and used for indicating a feedback information sequence length; the UE determines a feedback information sequence according to the feedback information sequence length indicated in the indication information; and the UE sends the determined feedback information sequence to the network side.

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