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公开(公告)号：US12022409B2
公开(公告)日：2024-06-25
申请号：US17694556
申请日：2022-03-14
发明人： Shichang Zhang , Bin Yu , Chengjun Sun
摘要： The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.
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公开(公告)号：US11570718B2
公开(公告)日：2023-01-31
申请号：US17201565
申请日：2021-03-15
发明人： Shichang Zhang , Yingyang Li , Chengjun Sun
摘要： Disclosed is a method for transmitting data by a user equipment (UE) in a wireless communication system including receiving scheduling information for scheduling a plurality of uplink (UL) subframes, identifying a UL subframe u among the plurality of UL subframes, determining a first transmit power for a physical uplink shared channel (PUSCH) in the UL subframe u, selecting a transmit power among the first transmit power and a predetermined second transmit power, and transmitting data through the PUSCH in the UL subframe u using the selected transmit power, wherein the first transmit power is determined based on a first power adjustment factor for a UL subframe (u−1), in case that the UL subframe u is different from a first scheduled UL subframe among the plurality of UL subframes, and wherein the first transmit power is determined based on a second power adjustment factor for the UL subframe u, in case that the UL subframe u is the first UL subframe.
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公开(公告)号：US10912037B2
公开(公告)日：2021-02-02
申请号：US15400816
申请日：2017-01-06
发明人： Shichang Zhang , Chengjun Sun , Yingyang Li
IPC分类号： H04W52/14 , H04W52/16 , H04W52/24 , H04W72/04 , H04L5/14 , H04W52/32 , H04W76/27 , H04W52/22 , H04W52/50
摘要： The present invention provides an apparatus and method for uplink signal power control in a dynamic Time Division Duplexing (TDD) cell. According to the method, after accessing a dynamic TDD cell, a User Equipment (UE) receives from an evolved NodeB (eNB) an uplink power control parameter which has been adjusted for a conflict uplink sub-frame.
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公开(公告)号：US10805947B2
公开(公告)日：2020-10-13
申请号：US14429932
申请日：2013-11-20
发明人： Shichang Zhang , Yingyang Li , Chengjun Sun
摘要： The present invention provides a method for uplink packet scheduling, comprising the following steps: a base station determines types of terminals, and groups the terminals based on types thereof; the base station transmits pre-scheduling indication information and uplink scheduling commands to the terminals in a group with a same type; the base station receives Physical Uplink Shared Channel (PUSCH) transmitted by the terminals on a corresponding uplink sub-frame. The present invention further provides a base station and a terminal. In the above solution provided by this invention, eNB sorts accessed MTC terminals into different types of groups based on types thereof via a high-layer signaling, part of the MTC terminals in a type group are sorted into a scheduling group via a pre-scheduling instruction carried by PDSCH, all the MTC terminals in that group are scheduled via an uplink scheduling command. The solution provided by this invention can obviously reduce the number of times that the base station transmits uplink scheduling commands, and alleviate the burden on the base station of scheduling PUSCH transmission of MTC terminals.
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公开(公告)号：US10448413B2
公开(公告)日：2019-10-15
申请号：US16263793
申请日：2019-01-31
发明人： Yingyang Li , Chengjun Sun
IPC分类号： H04W72/08 , H04W72/12 , H04W72/04 , H04L5/00 , H04L1/00 , H04L27/36 , H04B17/309 , H04B17/24
摘要： Disclosed is a downlink transmission method that includes UE receiving configuration information sent form base station and accordingly adjusting CQI table and MCS table; UE measuring and reporting downlink channel quality indicator information to the base station; with the UE reporting the CQI information according to a backward compatible CQI table or a CQI table which supports 256 QAM modulation; and the UE receiving downlink scheduling information sent from the base station, receiving accordingly downlink data sent from the base station, with the UE processing the MCS information according to a backward compatible MCS table or a MCS table which supports 256 QAM modulation.
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公开(公告)号：US10355812B2
公开(公告)日：2019-07-16
申请号：US15425239
申请日：2017-02-06
发明人： Qi Xiong , Bin Yu , Chen Qian , Chengjun Sun
摘要： The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A transmission method for multiple access is provided. The transmission method including performing, by a transmitter, channel coding on a bit sequence to determine a coded sequence, performing, by the transmitter, symbol modulation on the coded sequence, performing, by the transmitter, grid mapping on the modulated symbol sequence to determine a mapped sequence, and transmitting the mapped sequence.
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公开(公告)号：US10348529B2
公开(公告)日：2019-07-09
申请号：US15488292
申请日：2017-04-14
发明人： Chen Qian , Bin Yu , Chengjun Sun
IPC分类号： H04L25/03 , H04B17/336 , H04L25/02 , H04L27/26
摘要： The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for operating a receiving device in a wireless communication system comprises determining inter-symbol interference between symbols in a received signal, determining a location of a receive detection window according to the inter-symbol interference, and demodulating the received signal based on the location of the receive detection window. A receiving device includes at least one transceiver, and at least one processor configured to determine inter-symbol interference between symbols in a received signal, determine a location of a receive detection window according to the inter-symbol interference, and demodulate the received signal based on the location of the receive detection window. A transmitting device includes at least one processor configured to estimate an equivalent channel frequency response based on characteristic information of a time-domain filter, estimate an inter-symbol interference based on the equivalent channel frequency response, and generate indication information regarding an adjustment of a location of a receive detection window.
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公开(公告)号：US10314016B2
公开(公告)日：2019-06-04
申请号：US14417294
申请日：2013-07-26
发明人： Jingxing Fu , Chengjun Sun , Yingyang Li
摘要： A method and an apparatus are provided for HARQ-ACK feedback information transmission in a traffic adaptive TDD system. The method includes receiving, by a User Equipment (UE), a System Information Block (SIB); obtaining, by the UE, a TDD uplink and downlink configuration that is indicated by current system information and does not support traffic adaptive UE, from the SIB; identifying, by the UE, implicit resources of Physical Uplink Control Channel (PUCCH) based on the TDD uplink and downlink configuration; obtaining, by the UE, a HARQ-ACK timing that supports a traffic adaptive UE; and transmitting, by the UE, the HARQ-ACK feedback information on determined PUCCH resources using a determined PUCCH format, based on the obtained HARQ-ACK timing.
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公开(公告)号：US10230480B2
公开(公告)日：2019-03-12
申请号：US15312348
申请日：2015-05-19
发明人： Yingyang Li , Chengjun Sun
IPC分类号： H04B17/345 , H04J11/00 , H04L27/26 , H04W16/14 , H04W24/08
摘要： The present invention provides a method and a device for interference detection on an unlicensed band. An LTE-U device works in an unlicensed-band cell, and the LTE-U device detects an interference signal of the unlicensed-band cell and processes data transmission. By adopting the method of the present invention, the LTE-U device works in the unlicensed band and may measure the interference signal from other wireless system, so as to avoid mutual interference between LTE-U and the other wireless communication system.
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公开(公告)号：US09961643B2
公开(公告)日：2018-05-01
申请号：US14252277
申请日：2014-04-14
发明人： Shichang Zhang , Yingyang Li , Chengjun Sun
CPC分类号： H04W52/04 , H04L5/0053 , H04L5/0055 , H04L5/0092 , H04L5/14 , H04W52/146 , H04W52/228 , H04W52/325 , H04W72/1289 , Y02D70/00
摘要： A method for controlling an uplink (UL) power in a multi-subframe scheduling system is provided. The method includes receiving by a User Equipment (UE), a multi-subframe uplink (UL) scheduling instruction or Physical Downlink Control Channel CHannel (PDCCH) data of a Downlink Control Information (DCI) format 3/3 A of the UE, in a Downlink (DL) subframe where the multi-subframe UL scheduling instruction is transmitted, wherein the multi-subframe UL scheduling instruction or the PDCCH data with DCI format 3/3 A comprises a power controlling command of the PUSCH and determining, by the UE, a transmitting power of the PUSCH of each UL subframe, which is scheduled by the multi-subframe UL scheduling instruction, based on a power controlling command value, and transmitting corresponding PUSCH data based on the transmitting power calculated.
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