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公开(公告)号：US20190173721A1
公开(公告)日：2019-06-06
申请号：US16325182
申请日：2017-05-24
Inventor： Xuejuan GAO , Fang-Chen CHENG , Xueming PAN , Qiubin GAO
IPC: H04L27/26
Abstract: Disclosed in the present invention are a method and device for transmitting and detecting a synchronous signal, which is used to solve the problem that there is currently no clear solution as to how should a terminal detect a synchronous signal when multiple types of base-band numerology are defined in a new wireless communication system. The method comprises: a terminal determining a base-band numerology used to detect a synchronous signal; the terminal detecting the synchronous signal according to the determined base-band numerology. The terminal first determines a base-band numerology used to detect a synchronous signal before detecting said synchronous signal, and then detects the synchronous signal according to the determined base-band numerology, so as to identify the base-band numerology used in the synchronous signal transmission in future communication systems which support multiple types of base-band numerology, thereby correctly detecting the synchronous signal.
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公开(公告)号：US20190165899A1
公开(公告)日：2019-05-30
申请号：US16313125
申请日：2017-03-09
Inventor： Xuejuan GAO , Xueming PAN
Abstract: The present invention discloses a transmission method and apparatus for feedback information of uplink transmission. The method comprises: a terminal transmitting a physical uplink shared channel (PUSCH) in a special sub-frame m, where m is an integer; the terminal detecting, subsequent to the special frame m, in a sub-frame comprising downlink transmission resources or in a sub-frame m+k, a downlink control channel using an uplink/downlink control information (DCI) format, where k is a positive integer, and the terminal determining, according to the downlink control channel, whether to again transmit the PUSCH transmitted in the special sub-frame m. accordingly, the present invention provides a transmission solution that transmits PUSCH feedback information in a special sub-frame, ensuring that the PUSCH transmitted in the special sub-frame can normally obtain ACK/NACK feedback information.
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公开(公告)号：US20190123878A1
公开(公告)日：2019-04-25
申请号：US16088434
申请日：2017-02-08
Inventor： Xuejuan GAO , Xueming PAN , Fang-Chen CHENG , Qianqian SI
CPC classification number: H04L5/0055 , H04L1/1854 , H04L1/1864 , H04L5/1469 , H04L27/2605 , H04W72/0453
Abstract: Disclosed in the present application are a method and device for transmitting feedback information, used to define new feedback timing for downlink data using a dynamic and variable TTI length during transmission, so as to ensure that ACK/NACK feedback information of downlink data is fed back on an earliest uplink transmission resource meeting a processing delay requirement, thereby reducing system delay. The method for transmitting feedback information provided in the present application comprises: receiving downlink transmission; and determining, at least according to a TTI length and/or a second TTI length of the downlink transmission, an uplink time-domain resource position for ACK/NACK feedback information transmission for the downlink transmission, and sending, on the uplink time-domain resource position, the ACK/NACK feedback information for the downlink transmission, wherein the second TTI length is configured by configuration signaling or is a pre-arranged TTI length used for determining the uplink time-domain resource position of ACK/NACK feedback information transmission.
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公开(公告)号：US20190116616A1
公开(公告)日：2019-04-18
申请号：US16090128
申请日：2017-03-08
Inventor： Qianqian SI , Xueming PAN , Jiaqing WANG
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.
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公开(公告)号：US20190053284A1
公开(公告)日：2019-02-14
申请号：US16075572
申请日：2017-01-03
Inventor： Jiaqing WANG , Xueming PAN , Qianqian SI
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.
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Patent Agency Ranking
公开(公告)号：US20180376504A1
公开(公告)日：2018-12-27
申请号：US16075143
申请日：2017-01-18
Inventor： Qianqian SI , Xuejuan GAO , Xueming PAN , Jiaqing WANG
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.
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公开(公告)号：US20180331800A1
公开(公告)日：2018-11-15
申请号：US15774270
申请日：2017-01-06
Inventor： Xuejuan GAO , Yanping XING , Xueming PAN
CPC classification number: H04L5/0048 , H04L5/0012 , H04L5/0051 , H04L5/0094 , H04L5/1469 , H04W4/70 , H04W72/0406 , H04W74/0833
Abstract: Disclosed are an SRS transmission method and device. A terminal determines whether to transmit an SRS according to whether an SRS transmission frequency domain resource overlaps with a narrowband used for transmitting data or according to whether an adjacent narrowband used for data transmission is the same. The present invention is particularly suitable for narrowband terminal SRS transmission.
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公开(公告)号：US20180288802A1
公开(公告)日：2018-10-04
申请号：US15562364
申请日：2016-03-24
Inventor： Weijie XU , Xueming PAN
Abstract: Disclosed are a method and device for preempting transmission resources on unlicensed carriers, so as to implement an improved technical scheme for preempting channel resources on the unlicensed carriers, and thereby achieving a higher spectrum utilization rate. The method for preempting transmission resources on unlicensed carriers provided in the present application comprises: a device determines whether a preset clear channel assessment (CCA) detection time point is reached, said CCA detection time point being reached cyclically, said cycle being shorter than a preset allowed maximum duration of occupation for each signal transmission after the device preempts a channel; the device performs CCA detection when the CCA detection time point is reached.
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公开(公告)号：US20180255534A1
公开(公告)日：2018-09-06
申请号：US15759213
申请日：2016-08-04
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.
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20.发明申请公开(公告)号：US20160037492A1
公开(公告)日：2016-02-04
申请号：US14781867
申请日：2014-02-26
Inventor： Jing XU , Xueming PAN , Zukang SHEN
CPC classification number: H04W72/042 , H04L5/14
Abstract: Disclosed are an uplink and downlink configuration information transmission method and device. The method comprises: a network device generating DCI containing TDD uplink and downlink configuration information; the network device use one PDCCH or one EPDCCH to bear the DCI containing the TDD uplink and downlink configuration information; and the network device sending the PDCCH or the EPDCCH in at least one subframe in a predetermined subframe set.
Abstract translation: 公开了一种上行和下行配置信息传输方法和装置。 该方法包括：生成包含TDD上行链路和下行链路配置信息的DCI的网络设备; 网络设备使用一个PDCCH或一个EPDCCH承载包含TDD上行链路和下行链路配置信息的DCI; 网络设备在预定子帧组中的至少一个子帧中发送PDCCH或EPDCCH。
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