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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
发明人： Xuejuan GAO , Xueming PAN , Fang-Chen CHENG , Qianqian SI
CPC分类号： H04L5/0055 , H04L1/1854 , H04L1/1864 , H04L5/1469 , H04L27/2605 , H04W72/0453
摘要： 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：US20200177310A1
公开(公告)日：2020-06-04
申请号：US16623380
申请日：2018-04-20
发明人： Jiaqing WANG , Fang-Chen CHENG , Di ZHANG , Shaohui SUN
摘要： The present application relates to the technical field of wireless communication, and particularly relates to a channel encoding method and device, for use to solve the problem that at present, there is no physical broadcast channel polar encoding method in a 5G scene. Embodiments of the present application relate to determining a polar mother code length according to transmission resources of a channel; performing polar encoding, according to the polar mother code length, on data needing to be transmitted over the channel to obtain target encoding data; processing the target encoding data according to the length of an actual bearer of the transmission resources; and determining, according to the processed target encoding data, encoding data needing to be transmitted over the channel. The embodiments of the present application achieve determining encoding data according to an actual transmission resource length of a channel, so that the processed encoding data can be ensured to be accurately transmitted over the channel.
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公开(公告)号：US20190356459A1
公开(公告)日：2019-11-21
申请号：US16476120
申请日：2018-02-28
发明人： Lei WANG , Ekpenyong TONY , Xueming PAN , Fang-Chen CHENG
摘要： The present invention relates to the technical field of communications, and specifically relates to a method and device for determining the initial positions of a downlink data channel. The present invention solves the problem of determining the initial positions in the time domain of a downlink data channel when the resources occupied by a downlink control channel in the time domain are variable. The method comprises: a base station transmits to a terminal a generated indication signaling, and the terminal determines, on the basis of the received indication signaling, the time domain initial positions of the downlink data channel in L downlink TTIs. With said method, when the downlink control channel only appears in a part of the positions in a frequency domain or does not appear at all, and when the downlink control channel does not occupy the complete downlink control area in the time domain or the resources occupied by the downlink control channel in the time domain are variable, the base station can still accurately notify the terminal the time domain initial positions of the downlink data channel, so that the terminal can accurately receive downlink data, thereby enhancing the efficiency and reliability of the terminal reception of downlink data, and further enhancing the spectrum efficiency as well as the user experience.
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公开(公告)号：US20190045531A1
公开(公告)日：2019-02-07
申请号：US16073233
申请日：2017-01-19
发明人： Lei WANG , Xuejuan GAO , Fang-Chen CHENG , Shaohui SUN
摘要： Disclosed in the present invention are a method and apparatus for transmitting and detecting downlink control information. The method comprises: determining a state of resource allocation in a downlink transmission time period, the resource allocation comprising allocation of at least one downlink transmission resource region; and transmitting downlink control information on a preset resource in the at least one downlink transmission resource region, the downlink control information being used for scheduling at least one terminal to perform data transmission in the downlink transmission resource region. The method also comprises: detecting the downlink control information on the preset resource in the downlink transmission time period; determining, according to the detected downlink control information, a data transmission region indicated by the downlink control information; and detecting follow-up downlink control information according to the data transmission region. By using the present invention, downlink control information can be transmitted at a fixed position in each downlink transmission time period, and multiple transmission time intervals of different lengths are supported, so that rich service types in the future can be better supported.
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公开(公告)号：US20210306198A1
公开(公告)日：2021-09-30
申请号：US16324907
申请日：2017-07-03
发明人： Xuejuan GAO , Fang-Chen CHENG , Xueming PAN , Qiubin GAO
摘要： Disclosed are a method and device for determining a baseband parameter, used for solving the problem of there not yet being an explicit solution for how to determine a numerology in a new radio communication system. The method comprises: according to an initial synchronization signal it detects, a terminal determining the TRP group to which said terminal belongs; according to a third synchronization signal detected in the TRP group and/or system information of the terminal group, the terminal determining the numerology. The solution provided by the embodiments of the present invention correctly identifies numerologies corresponding to different sub-bands, different TRPs, and/or different beams in a TRP group, thus achieving synchronization with different sub-bands, different TRPs, and/or different beams in the TRP group and ensuring that the terminal may operate, according to correct numerology, on a corresponding sub-band, TRP, or beam.
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公开(公告)号：US20210007056A1
公开(公告)日：2021-01-07
申请号：US16977086
申请日：2018-12-05
发明人： Di ZHANG , Fang-Chen CHENG , Xiangli LIN
摘要： Embodiments of the present application provide a method and a device for determining a power control offset for a PUCCH, for resolving the issue in which existing methods for determining a power control offset for a PUCCH are incompatible with new radio communications systems. The method comprises: determining the number of bits, OUCI, of first uplink control information (UCI) required to be transmitted on a PUCCH, and determining the number, NRE, of resource elements (RE) carrying the first UCI in the PUCCH; and determining, according to formula (I), an offset ΔPUCCH_TF,c(i) for calculation of power control of the PUCCH, and g(OUCI/NRE) is a function having OUCI and NRE as variables thereof.
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17.发明申请公开(公告)号：US20200383139A1
公开(公告)日：2020-12-03
申请号：US16496949
申请日：2018-03-15
发明人： Bin REN , Ren DA , Fang-Chen CHENG , Ekpenyong TONY
摘要： A method and device for sending and receiving a preamble sequence of a physical random access channel, comprising: scrambling a preamble subsequence and then sending, the preamble subsequence being scrambled according to a cyclic shift value of a preamble subsequence sent in the previous stage; performing a descrambling operation according to a cyclic shift value of a preamble subsequence received in the previous stage during reception; and determining a preamble sub-sequence detected after descrambling as a preamble sub-sequence received in the current stage, where the received preamble sub-sequence in the current stage and the received preamble sub-sequence in the previous stage belong to the same preamble sequence.
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18.发明申请公开(公告)号：US20200275419A1
公开(公告)日：2020-08-27
申请号：US16646558
申请日：2018-07-30
发明人： Lei WANG , Ekpenyong TONY , Fang-Chen CHENG , Xuejuan GAO
摘要： A method for determining and configuring a resource used for transmitting downlink data, a terminal and a base station: the base station configures, for each terminal, resource collections or resource collection subgroups used for receiving downlink data, and then the base station notifies the terminal, by means of an explicit signaling, whether all of the resource collections or each resource collection of the configured resource collections are available, or whether all of resource collection subgroups or each resource collection subgroup of the resource collection subgroups are available, thus allowing the terminal to determine, according to the notification, the time-frequency resource position of a resource used to receive downlink data, so that the terminal may carry out rate matching on the determined resource.
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公开(公告)号：US20200187169A1
公开(公告)日：2020-06-11
申请号：US16336092
申请日：2017-08-22
发明人： Xuejuan GAO , Xueming PAN , Fang-Chen CHENG
摘要： Disclosed in the present application are a data transmission method and a device, comprising: dividing a time unit into DL areas, a time unit including at least two DL areas; notifying a terminal of the divided DL areas by means of configuration signaling. The terminal receiving the configuration signaling; according to said configuration signaling, determining DL areas into which a time unit is divided. Using the present application, defining at least two DL detection areas in a time unit, a terminal detects a downlink transmission in each detection area, and, when one is detected, performs ACK/NACK feedback in an uplink area corresponding to said downlink area. In the present invention, each downlink area has a defined feedback and scheduling relationship, respectively, by means of dividing a time unit into multiple downlink areas, thereby increasing scheduling flexibility and system resource utilization.
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公开(公告)号：US20200170018A1
公开(公告)日：2020-05-28
申请号：US16611206
申请日：2018-04-18
发明人： Xuejuan GAO , Ekpenyong TONY , Fang-Chen CHENG
摘要： Disclosed are a data transmission method, a terminal, and a base station. Determined is that a TB needs to be divided into M CBG; grouping, according to a preset grouping scheme, multiple CB produced when the one TB is code block segmented, thus diving the one TB into the M CBG; and transmitting data according to the M CBG, where M is a positive integer. The technical solution of the present invention solves the technical problem of low data transmission efficiency and low resource utilization rate in an LTE system found in the prior art.
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