公开(公告)号：US20190116616A1

公开(公告)日：2019-04-18

申请号：US16090128

申请日：2017-03-08

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Qianqian SI ,  Xueming PAN ,  Jiaqing WANG

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04L5/00

Abstract: An information feedback method, a base station, a terminal and a storage medium are provided. The information feedback method includes: sending downlink control information to a terminal, where the downlink control information includes indication information configured to instruct the terminal to perform an information feedback, and the indication information includes at least one of a feedback delay of feeding back feedback information by the terminal, an indication of whether a LBT process is performed when feeding back the feedback information by the terminal, a type of the LBT process performed when feeding back the feedback information by the terminal and a parameter configuration of the LBT process performed when feeding back the feedback information by the terminal; receiving the feedback information sent by the terminal based on the indication information in the downlink control information.

公开(公告)号：US20190053284A1

公开(公告)日：2019-02-14

申请号：US16075572

申请日：2017-01-03

Applicant: China Academy of Telecommunications Technology

Inventor： Jiaqing WANG ,  Xueming PAN ,  Qianqian SI

IPC: H04W74/08 ,  H04W72/04 ,  H04W16/14

Abstract: Disclosed in the present application are a method and a device for transmitting PRACH signals in an unauthorized spectrum, used for enhancing channel access for a PRACH signal. The method comprises: before transmitting each candidate resource as configured in resources, a terminal performs LBT detection according to configuration information of a transmission resource for transmitting PRACH signals until a current channel is detected to be idle; and after detecting that the current channel is idle, the terminal transmits a PRACH signal on the corresponding candidate resource. In the present application, a plurality of candidate resources are configured in a transmission resource for transmitting PRACH signals, such that the terminal may transmit the PRACH signals on the corresponding candidate resource when it is detected that the current channel is idle before any candidate resource, thereby improving transmission probability for PRACH signals and enhancing channel access for PRACH signals.

公开(公告)号：US20180376504A1

公开(公告)日：2018-12-27

申请号：US16075143

申请日：2017-01-18

Applicant: China Academy of Telecommunications Technology

Inventor： Qianqian SI ,  Xuejuan GAO ,  Xueming PAN ,  Jiaqing WANG

IPC: H04W74/08 ,  H04W76/28 ,  H04W72/04

Abstract: A method and device for transmitting uplink control information is described. The method includes according to the size and position of a feedback window, determining uplink control information; according to a transmission moment of the uplink control information, performing listen-before-talk detection to determine an actual uplink transmission moment; and transmitting the determined uplink control information at an actual uplink transmission moment. In the embodiments of the present disclosure, under the situation where no channel is occupied at a set uplink control information transmission moment, one or more times of listen-before-talk detection are continued, and the determined uplink control information is transmitted on an actual uplink transmission moment, thereby avoiding the situation that uplink control information may not be correctly transmitted in time due to not occupying a channel, and further improving the system performance.

公开(公告)号：US20180255534A1

公开(公告)日：2018-09-06

申请号：US15759213

申请日：2016-08-04

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Jiaqing WANG ,  Xueming PAN ,  Weijie XU ,  Qianqian SI

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L5/0053 ,  H04W16/14 ,  H04W72/044 ,  H04W72/1289 ,  H04W74/0808

Abstract: Disclosed are a physical downlink control channel transmission method and apparatus, which are used for achieving, in the case where an initial signal or signalling which indicates an initial position of a physical downlink shared channel is not transmitted, a method in which a physical downlink control channel is used for transmitting and indicating an initial position of a physical downlink shared channel. The method comprises: a terminal determining, according to each candidate time position in a set of candidate time positions and a set of candidate physical downlink control channel/enhanced physical downlink control channel resource positions corresponding to the candidate time position respectively, a physical downlink control channel/enhanced physical downlink control channel bearing downlink control information in an unauthorized frequency band wireless frame; and the terminal receiving the downlink control information by means of the determined physical downlink control channel/enhanced physical downlink control channel.

公开(公告)号：US20150333871A1

公开(公告)日：2015-11-19

申请号：US14652390

申请日：2013-12-26

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Yanan LIN ,  Zukang SHEN ,  Xuejuan GAO ,  Qianqian SI

IPC: H04L1/16 ,  H04W72/04 ,  H04J4/00

CPC classification number: H04L1/16 ,  H04J4/00 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0055 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/042 ,  H04W72/0453 ,  H04W84/042

Abstract: Disclosed are a method and a device for sending and receiving acknowledgement feedback information, which relate to the field of wireless communications, and are applicable to solving the problem of transmitting acknowledgement feedback information of downlink data in the case of aggregation of a time division duplex (TDD) carrier and a frequency division duplex (FDD) carrier. In this solution, a terminal receives configuration signaling sent by a network side, where the configuration signaling instructs to divide M downlink carriers for carrier aggregation into information about N downlink carrier groups, and to configure one uplink carrier for each downlink carrier group; the uplink carrier used for sending acknowledgement feedback information corresponding to downlink data is determined according to the configuration signaling, and the acknowledgement feedback information corresponding to the downlink data is sent to the network side according to a determination result after the downlink data is received. This application solves the problem of how to receive acknowledgement feedback information in the case of aggregation of the TDD carrier and the FDD carrier.

Abstract translation: 公开了一种用于发送和接收与无线通信领域有关的确认反馈信息的方法和装置，并且适用于解决在时分双工的聚合的情况下发送下行链路数据的确认反馈信息的问题 TDD）载波和频分双工（FDD）载波。 在该解决方案中，终端接收由网络侧发送的配置信令，其中配置信令指示将用于载波聚合的M个下行链路载波划分为关于N个下行链路载波组的信息，并为每个下行链路载波组配置一个上行链路载波; 根据配置信令确定用于发送对应于下行链路数据的确认反馈信息的上行链路载波，并且根据接收到下行链路数据之后的确定结果将与下行链路数据相对应的确认反馈信息发送到网络侧。 该应用解决了在TDD载波和FDD载波的聚合的情况下如何接收确认反馈信息的问题。