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公开(公告)号：US10820279B2
公开(公告)日：2020-10-27
申请号：US16337939
申请日：2017-06-30
Inventor： Xuejuan Gao
Abstract: Disclosed in the present application are a power distribution method and apparatus, used for enabling simultaneous transmission by communication channels using TTI of different lengths by means of controlling the transmission power of the transmission channels respectively using TTI of different lengths to not surpass the permitted maximum transmission power of a device. The method comprises: determining the sum of the transmission powers of an uplink channel using a first TTI length for transmission and of an uplink channel using a second TTI length for transmission in a sub-frame; and when the sum surpasses the permitted maximum transmission power of a device, implementing power distribution according to a predetermined rule, such that the sum does not surpass the permitted maximum transmission power of the device.
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公开(公告)号：US10779329B2
公开(公告)日：2020-09-15
申请号：US15752889
申请日：2016-08-12
Inventor： Xuejuan Gao , Weijie Xu , Yanping Xing
Abstract: Disclosed in the present application are a random access response (RAR) transmission method and device for ensuring independent transmission of RARs having different coverage enhancement levels, reducing a blind test of a physical downlink control channel performed by a terminal, and saving power consumption of the terminal. The present application provides an RAR transmission method, comprising: determining, by a network side and at least according to coverage enhancement levels corresponding to physical downlink control channels, frequency domain resources of the physical downlink control channels, wherein the frequency domain resources of the physical downlink control channels having different coverage enhancement levels are independently configured; and transmitting, by the network side, the physical downlink control channels on the frequency domain resources of the physical downlink control channels.
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公开(公告)号：US10716069B2
公开(公告)日：2020-07-14
申请号：US15114820
申请日：2015-01-27
Inventor： Xuejuan Gao , Yanan Lin
Abstract: The present disclosure provides a power control method and a power control apparatus for uplink channels. The power control method includes steps of: determining, by a UE, target transmission powers for the uplink channels in each carrier group, the UE being configured with at least two carrier groups, UCI in each carrier group being fed back via PUCCH(s) and/or PUSCH(s) on at least one uplink carrier corresponding to the carrier group; determining, by the UE, whether or not a sum of the target transmission powers for the simultaneous transmission uplink channels exceeds an allowable maximum transmission power of the UE; and in the case that the sum of the target transmission powers for the simultaneous transmission uplink channels exceeds the allowable maximum transmission power of the UE, reducing, by the UE, powers for the PUCCH(s) and/or PUSCH(s) carrying the UCI of different carrier groups among the simultaneous transmission uplink channels at least in accordance with priorities of types of the UCI, so that a sum of the transmission powers for all the uplink channels in a current uplink subframe does not exceed the allowable maximum transmission power of the UE. According to the present disclosure, it is able to perform uplink power control in the case that the UE supports the independent UCI feedback for different carrier groups.
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公开(公告)号：US09942916B2
公开(公告)日：2018-04-10
申请号：US14905826
申请日：2014-07-22
Inventor： Xuejuan Gao , Yanan Lin , Zukang Shen
CPC classification number: H04W72/1284 , H04L5/001 , H04L5/0023 , H04L5/0032 , H04L5/0053 , H04L5/0087 , H04L2001/0097 , H04W74/0833 , H04W76/15
Abstract: Disclosed are an uplink control information transmission method and device for addressing a lack of a solution that a terminal provides feedback of downlink carriers scheduled by different base stations in a dual-connectivity scenario. The method in an embodiment of the present application comprises: a terminal receives data over a first carrier and a second carrier, the data over the first carrier being scheduled by a first base station and the data over the second carrier being scheduled by a second base station; the terminal generates first uplink control information for the first carrier, and/or the terminal generates second uplink control information for the second carrier; the terminal transmits the generated uplink control information over one uplink carrier according to a TA value and a reference carrier, the uplink control information comprising at least one of the first uplink control information and the second uplink control information. Therefore, the terminal can simply transmit over one uplink carrier the uplink control information corresponding to the downlink carriers scheduled by different base stations scheduling data for the terminal.
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公开(公告)号：US09801162B2
公开(公告)日：2017-10-24
申请号：US13626761
申请日：2012-09-25
Inventor： Yanan Lin , Zukang Shen , Xueming Pan , Xuejuan Gao
CPC classification number: H04W72/0413 , H04L1/1607 , H04L1/1861 , H04L5/001 , H04L5/0055
Abstract: A method and a device for determining uplink control channel resources are disclosed by the embodiments of the present invention. With the technical solutions of the embodiments of the present invention, the uplink control resources, such as the ACK/NACK and the like, can be configured semi-statically. The method is applicable for both the FDD system and the TDD system. The overhead of the uplink feedback channel in the Long Term Evolution (LTE) carrier aggregation system is reduced. Therefore the system performance of the LTE multi-carrier advanced system is improved, and the system is compatible with the LTE Release 8 system well.
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Patent Agency Ranking
公开(公告)号：US09705655B2
公开(公告)日：2017-07-11
申请号：US14409363
申请日：2013-06-09
Inventor： Xuejuan Gao , Yanan Lin , Zukang Shen , Qianqian Si
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.
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公开(公告)号：US20170006626A1
公开(公告)日：2017-01-05
申请号：US15109223
申请日：2015-01-15
Inventor： Yanan Lin , Zukang Shen , Xuejuan Gao , Qianqian Si
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。
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88.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
Inventor： Xuejuan Gao , Yanan Lin , Zukang Shen
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。
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89.发明授权公开(公告)号：US09374814B2
公开(公告)日：2016-06-21
申请号：US14412608
申请日：2013-07-04
Inventor： Xuejuan Gao , Yanan Lin , Zukang Shen
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。
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90.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
Inventor： Qianqian Si , Zukang Shen , Yanan Lin , Xuejuan Gao
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。
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