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公开(公告)号：US20240146434A1
公开(公告)日：2024-05-02
申请号：US18407811
申请日：2024-01-09
申请人： Sun Patent Trust
CPC分类号： H04J11/0053 , H04B1/713 , H04B7/024 , H04B17/354 , H04J13/0062 , H04J13/0074 , H04L1/20 , H04L5/0007 , H04L5/0035 , H04L5/0051 , H04L5/0091 , H04L1/0026
摘要： Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit (101) sets whether the terminal (100) thereof is a CoMP terminal or a Non-CoMP terminal. When the terminal (100) is set as a Non-CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, from among all the ZC sequence numbers that can be used within the system. When the terminal (100) is set as a CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, by hopping the ZC sequence numbers to be used within the CoMP set. A ZC sequence generating unit (105) generates a ZC sequence to be used as an SRS, using the calculated ZC sequence number.
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公开(公告)号：US20190021097A1
公开(公告)日：2019-01-17
申请号：US16031897
申请日：2018-07-10
发明人： Chong LI , Jay Kumar SUNDARARAJAN , Jing JIANG , Seyong PARK
IPC分类号： H04W72/12 , H04W72/04 , H04B1/7143
CPC分类号： H04W72/12 , H04B1/692 , H04B1/713 , H04B1/7143 , H04B2001/6908 , H04J13/0074 , H04L1/1819 , H04W72/0413 , H04W72/042
摘要： Aspects of the present disclosure provide a mechanism for utilizing uplink hopping patterns for HARQ transmissions. Each hopping pattern may include a sequence of different frequency resources or a sequence of different scrambling sequences for a user equipment (UE) to utilize over time for HARQ transmissions. Each of the hopping patterns may further be associated with a time index mode in which the hopping pattern is applied to time resources such that each time resource within a consecutive sequence of time resources is mapped to a different frequency resource or scrambling sequence. The base station may select a hopping pattern for a particular UE and transmit an indication of the selected hopping pattern to the UE.
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3.发明授权公开(公告)号：US10069610B2
公开(公告)日：2018-09-04
申请号：US15231362
申请日：2016-08-08
申请人： LG ELECTRONICS INC.
发明人： Min Seok Noh , Jae Hoon Chung , Hyun Soo Ko , Seung Hee Han , Moon Il Lee
CPC分类号： H04L5/0051 , H04J11/003 , H04J11/005 , H04J13/0074 , H04L5/0007 , H04L5/0012 , H04L5/0026 , H04L5/0037 , H04L5/0048 , H04L5/0082 , H04L5/0092 , H04L27/2613 , H04W28/18 , H04W48/16
摘要： A method and a user equipment (UE) for generating a reference signal sequence in a wireless communication system are discussed. The method according to an embodiment includes receiving a cell-specific sequence hopping parameter from a base station. The cell-specific sequence hopping parameter is used to enable a sequence hopping for a plurality of UEs in a cell if a cell-specific group hopping parameter is used to disable a group hopping for the plurality of UEs in the cell. The method includes receiving a UE-specific sequence group hopping (SGH) parameter, specified to the UE, from the base station. The UE-specific SGH parameter is used to disable the sequence hopping, enabled by the cell-specific sequence hopping parameter. The method includes generating the reference signal sequence based on a base sequence number within a base sequence group. The base sequence number within the base sequence group is determined by the UE-specific SGH parameter.
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公开(公告)号：US20180131481A1
公开(公告)日：2018-05-10
申请号：US15713893
申请日：2017-09-25
申请人： Intel Corporation
发明人： Jing Jiang , Pierre Bertrand , Tarik Muharemovic
CPC分类号： H04L5/0007 , H04J13/0059 , H04J13/0062 , H04J13/0074 , H04L27/2601 , H04L27/2607 , H04L27/2613 , H04W74/08
摘要： Transmission of random access preamble structures within a cellular wireless network is based on the use of cyclic shifted constant amplitude zero autocorrelation (“CAZAC”) sequences to generate the random access preamble signal. A pre-defined set of sequences is arranged in a specific order. Within the predefined set of sequences is an ordered group of sequences that is a proper subset of the pre-defined set of sequences. Within a given cell, up to 64 sequences may need to be signaled. In order to minimize the associated overhead due to signaling multiple sequences, only one logical index is transmitted by a base station serving the cell and a user equipment within the cell derives the subsequent indexes according to the pre-defined ordering. Each sequence has a unique logical index. The ordering of sequences is identified by the logical indexes of the sequences, with each logical index uniquely mapped to a generating index. When a UE needs to transmit, it produces a second sequence using the received indication of the logical index of the first sequence and an auxiliary parameter and then produces a transmission signal by modulating the second sequence.
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公开(公告)号：US09942070B2
公开(公告)日：2018-04-10
申请号：US15312148
申请日：2015-06-09
IPC分类号： H04L27/20 , H04B1/7073 , H04J13/00 , H04J13/10 , H04L27/233 , H04L27/26 , H04L7/00 , H04L27/18 , H04L27/22 , H04L23/02 , H04L27/00
CPC分类号： H04L27/2017 , H04B1/7073 , H04J13/0074 , H04J13/10 , H04L7/00 , H04L23/02 , H04L27/18 , H04L27/2003 , H04L27/22 , H04L27/233 , H04L27/2659 , H04L27/2662 , H04L2027/0046 , H04L2027/0065
摘要： A radio transmitter (4) comprises an encoder (5) that receives one or more variable message bits, and encodes each message bit that has a first value as a predetermined first binary chip sequence and encodes each message bit that has the opposite value as a predetermined second binary chip sequence. The radio transmitter (4) transmits data packets, each comprising (i) a predetermined synchronization portion, comprising one or more instances of the first binary chip sequence, and (ii) a variable data portion, comprising one or more encoded message bits output by the encoder. A radio receiver (9) receives such data packets. It uses the synchronization portion of a received data packet to perform a frequency and/or timing synchronization operation, and then decodes message bits from the data portion of the data packet.
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公开(公告)号：US20180097724A1
公开(公告)日：2018-04-05
申请号：US15482510
申请日：2017-04-07
发明人： Seyong PARK , Wei ZENG , Haitong SUN , Joseph Binamira SORIAGA , Tingfang JI
IPC分类号： H04L12/753 , H04B1/713 , H04L5/00 , H04L25/03 , H04J13/12 , H04W72/04 , H04B7/212 , H04J13/00 , G06F17/22
CPC分类号： H04L45/48 , G06F17/2252 , G06F17/2258 , H04B1/713 , H04B7/2121 , H04J13/0025 , H04J13/0074 , H04J13/12 , H04L5/0021 , H04L25/03331 , H04L27/26 , H04W72/0446
摘要： Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides a method of communication by an apparatus. The method includes selecting one or more resources for transmitting data of a first data stream based on an acyclic graph. The selected resources conform to the acyclic graph comprising data streams at odd levels of the acyclic graph and resources at even levels of the acyclic graph. The acyclic graph includes edges between each level of the acyclic graph. The edges connect the resources allocated to each data stream. The method further includes transmitting the data of the first data stream on the selected one or more resources.
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7.发明授权公开(公告)号：US09924417B2
公开(公告)日：2018-03-20
申请号：US14946425
申请日：2015-11-19
CPC分类号： H04W36/0061 , H04B2201/70702 , H04J13/0074 , H04W16/02 , H04W36/0055
摘要： A method and apparatus are provided for updating a sequence hopping (SH) pattern of an uplink channel during handover from a current cell having a current SH pattern. At least one downlink channel of each neighbor cell of the current cell is monitored. Information indicative of the monitored downlink channels of the neighbor cells is transmitted to the current cell. Prior to receiving a handover command from the current cell a target cell from among the neighbor cells is anticipated and a common downlink channel of the anticipated target cell is monitored to determine information representative of a target SH pattern of the target cell.
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公开(公告)号：US20180069667A1
公开(公告)日：2018-03-08
申请号：US15808708
申请日：2017-11-09
发明人： Seigo Nakao , Daichi Imamura
CPC分类号： H04L1/1893 , H04J13/0003 , H04J13/0059 , H04J13/0074 , H04J13/22 , H04L1/0061 , H04L1/1825 , H04L1/1854 , H04L1/1861 , H04L1/1896 , H04L5/0007 , H04L5/0053 , H04L5/0055 , H04L5/006 , H04L5/0091 , H04L25/03866 , H04L27/2602 , H04L27/2613 , H04L27/2626 , H04L2001/125 , H04W72/0406 , H04W72/0413 , H04W72/042
摘要： Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit (214) which multiplies a response signal after modulated, by a scrambling code “1” or “e−j(π/2)” so as to rotate a constellation for each of response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a Zero Auto Correlation (ZAC) sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209).
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公开(公告)号：US09787514B2
公开(公告)日：2017-10-10
申请号：US14703360
申请日：2015-05-04
发明人： Sung Jun Yoon
CPC分类号： H04L27/2613 , H04J13/0074 , H04L5/0012 , H04L5/0035 , H04L5/0048 , H04L5/0085 , H04W24/08 , H04W72/0413 , H04W72/0453 , H04W76/27
摘要： The present invention relates to a method and an apparatus for transmitting and receiving a reference signal in a wireless communication system. In the method, in order to dynamically switch an uplink (UL) Demodulation-Reference Signal (DM-RS) according to the communication environment, such as CoMP and MU-MIMO, a parameter set for generation of a reference signal sequence is configured to include a Virtual Cell Identifier (VCID) parameter configured by information of a total of 9 bits and a cyclic shift hopping initial value parameter cinitCSH, which is 9-bit information representing one integer value among 510 integer values. Therefore, it may be possible to achieve dynamic transmission or reception of a reference signal and channel estimation through the dynamic transmission or reception of the reference signal even when the communication environment dynamically changes as in a Cooperative Multiple Point transmission and reception (CoMP) scenario.
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公开(公告)号：US09780935B2
公开(公告)日：2017-10-03
申请号：US13521659
申请日：2011-01-11
申请人： Jing Xu , Deshan Miao
发明人： Jing Xu , Deshan Miao
CPC分类号： H04L5/0051 , H04B7/068 , H04B7/0684 , H04B2201/70701 , H04J13/004 , H04J13/0074 , H04J13/18 , H04J2013/165 , H04L5/0007 , H04L5/0016 , H04L5/0023 , H04L27/2613 , H04L2025/03426
摘要： Disclosed is a method for transmitting a downlink pilot, which serves to solve the problem that the power of Orthogonal Frequency Division Multiplexing (OFDM) symbols is different due to Walsh codes. The method includes: transmitting a dedicated pilot in the Code Division Multiplexing (CDM) approach or in the combination approach of CDM and Frequency Division Multiplexing (FDM); further, in the resources for transmitting the dedicated pilot, configuring an orthogonal resources for the dedicated pilot according to a set mapping rule.
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