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公开(公告)号：US11012222B2
公开(公告)日：2021-05-18
申请号：US16453069
申请日：2019-06-26
Applicant: Optis Cellular Technology, LLC
Inventor： Dae Won Lee , Bong Hoe Kim , Young Woo Yun , Ki Jun Kim , Dong Wook Roh , Hak Seong Kim , Hyun Wook Park
Abstract: A method for transmitting uplink signals, which include ACK/NACK signals, control signals other than the ACK/NACK signals, and data signals, is disclosed. The method comprises serially multiplexing the control signals and the data signals; sequentially mapping the multiplexed signals within a specific resource region in accordance with a time-first mapping method, the specific resource region including a plurality of symbols and a plurality of virtual subcarriers; and arranging the ACK/NACK signals at both symbols near symbols to which a reference signal of the plurality of symbols is transmitted. Thus, the uplink signals can be transmitted to improve receiving reliability of signals having high priority.
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公开(公告)号：US09451605B2
公开(公告)日：2016-09-20
申请号：US14250145
申请日：2014-04-10
Applicant: Optis Cellular Technology, LLC
Inventor： Dae Won Lee , Ki Jun Kim , Dong Wook Roh , Yu Jin Noh , Joon Kui Ahn , Jung Hoon Lee
CPC classification number: H04W72/042 , H04L5/0007 , H04L5/0037 , H04L5/0053 , H04L27/2626 , H04L27/2647 , H04L27/2656 , H04L27/2666 , H04W24/08 , H04W48/12 , H04W88/02 , H04W88/08
Abstract: A method for efficiently transmitting and receiving control information through a Physical Downlink Control Channel (PDCCH) is provided. When a User Equipment (UE) receives control information through a PDCCH, the received control information is set to be decoded in units of search spaces, each having a specific start position in the specific subframe. Here, a modulo operation according to a predetermined first constant value (D) is performed on an input value to calculate a first result value, and a modulo operation according to a predetermined first variable value (C) corresponding to the number of candidate start positions that can be used as the specific start position is performed on the calculated first result value to calculate a second result value and an index position corresponding to the second result value is used as the specific start position. Transmitting control information in this manner enables a plurality of UEs to efficiently receive PDCCHs without collisions.
Abstract translation: 提供了一种通过物理下行链路控制信道（PDCCH）高效地发送和接收控制信息的方法。 当用户设备（UE）通过PDCCH接收到控制信息时，所接收的控制信息被设置为以搜索空间为单位进行解码，每个搜索空间在特定子帧中具有特定的开始位置。 这里，对输入值执行根据预定的第一常数值（D）的模运算以计算第一结果值，并且根据与候选开始位置的数量相对应的预定的第一可变值（C）进行模运算 对计算出的第一结果值执行可用作特定开始位置的计算第二结果值，并将与第二结果值对应的索引位置用作特定开始位置。 以这种方式发送控制信息使得多个UE能够有效地接收PDCCH而不发生冲突。
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公开(公告)号：US09100159B2
公开(公告)日：2015-08-04
申请号：US14592980
申请日：2015-01-09
Applicant: OPTIS CELLULAR TECHNOLOGY, LLC
Inventor： Joon Kui Ahn , Dae Won Lee , Young Woo Yun , Ki Jun Kim
CPC classification number: H04L5/0055 , H04L1/1812 , H04L5/14 , H04L12/1868 , H04L12/52 , H04W72/0406
Abstract: A method of performing HARQ performed by a user equipment (UE) is provided. The method includes receiving a bundling indicator which indicates the number of bundled downlink subframes, determining whether at least one bundled downlink subframe is missed by comparing the bundling indicator with the number of detected bundled downlink subframes, generating a representative ACK/NACK signal when no bundled downlink subframe is missed, and transmitting the representative ACK/NACK signal on an uplink channel. Recovery capability is maximized and the packet loss is reduced in such a situation that less number of ACK/NACK signals are fed back than that of downlink packets.
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4.发明授权Method for effectively transmitting control signal in wireless communication system 有权无线通信系统中有效发送控制信号的方法公开(公告)号：US08935587B2
公开(公告)日：2015-01-13
申请号：US14029516
申请日：2013-09-17
Applicant: Optis Cellular Technology, LLC
Inventor： Joon Kui Ahn , Dae Won Lee , Young Woo Yun , Ki Jun Kim
CPC classification number: H04L5/0055 , H04L1/1812 , H04L5/14 , H04L12/1868 , H04L12/52 , H04W72/0406
Abstract: A method of performing HARQ performed by a user equipment (UE) is provided. The method includes receiving a bundling indicator which indicates the number of bundled downlink subframes, determining whether at least one bundled downlink subframe is missed by comparing the bundling indicator with the number of detected bundled downlink subframes, generating a representative ACK/NACK signal when no bundled downlink subframe is missed, and transmitting the representative ACK/NACK signal on an uplink channel. Recovery capability is maximized and the packet loss is reduced in such a situation that less number of ACK/NACK signals are fed back than that of downlink packets.
Abstract translation: 提供了一种执行由用户设备（UE）执行的HARQ的方法。 该方法包括：接收指示捆绑的下行链路子帧的数量的捆绑指示符，通过将捆绑指示符与检测到的捆绑的下行链路子帧的数量进行比较来确定是否错过了至少一个捆绑的下行链路子帧，当没有捆绑时生成代表性的ACK / NACK信号 丢失下行链路子帧，并在上行链路信道上发送代表性的ACK / NACK信号。 在使得ACK / NACK信号的数量少于下行链路分组的情况下，恢复能力最大化并且分组丢失减少。
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公开(公告)号：US20140219224A1
公开(公告)日：2014-08-07
申请号：US14250145
申请日：2014-04-10
Applicant: Optis Cellular Technology, LLC
Inventor： Dae Won LEE , Ki Jun Kim , Dong Wook Roh , Yu Jin Noh , Joon Kui Ahn , Jung Hoon Lee
IPC: H04W72/04
CPC classification number: H04W72/042 , H04L5/0007 , H04L5/0037 , H04L5/0053 , H04L27/2626 , H04L27/2647 , H04L27/2656 , H04L27/2666 , H04W24/08 , H04W48/12 , H04W88/02 , H04W88/08
Abstract: A method for efficiently transmitting and receiving control information through a Physical Downlink Control Channel (PDCCH) is provided. When a User Equipment (UE) receives control information through a PDCCH, the received control information is set to be decoded in units of search spaces, each having a specific start position in the specific subframe. Here, a modulo operation according to a predetermined first constant value (D) is performed on an input value to calculate a first result value, and a modulo operation according to a predetermined first variable value (C) corresponding to the number of candidate start positions that can be used as the specific start position is performed on the calculated first result value to calculate a second result value and an index position corresponding to the second result value is used as the specific start position. Transmitting control information in this manner enables a plurality of UEs to efficiently receive PDCCHs without collisions.
Abstract translation: 提供了一种通过物理下行链路控制信道（PDCCH）高效地发送和接收控制信息的方法。 当用户设备（UE）通过PDCCH接收到控制信息时，所接收的控制信息被设置为以搜索空间为单位进行解码，每个搜索空间在特定子帧中具有特定的开始位置。 这里，对输入值执行根据预定的第一常数值（D）的模运算以计算第一结果值，并且根据与候选开始位置的数量相对应的预定的第一可变值（C）进行模运算 对计算出的第一结果值执行可用作特定开始位置的计算第二结果值，并将与第二结果值对应的索引位置用作特定开始位置。 以这种方式发送控制信息使得多个UE能够有效地接收PDCCH而不发生冲突。
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Patent Agency Ranking
公开(公告)号：US11032814B2
公开(公告)日：2021-06-08
申请号：US16827892
申请日：2020-03-24
Applicant: Optis Cellular Technology, LLC
Inventor： Dae Won Lee , Ki Jun Kim , Dong Wook Roh , Yu Jin Noh , Joon Kui Ahn , Jung Hoon Lee
Abstract: A User Equipment (UE) monitors a set of Physical Downlink Control Channel (PDCCH) candidates for control information received from a base station at subframe k. The set of PDCCH candidates to monitor are defined in terms of search spaces. The UE monitors a UE-specific search space, among the search spaces, at each of aggregation levels (L) of 1, 2, 4 and 8 control channel elements (CCEs), the CCE being a resource unit comprising a specific number of resource elements and used for transmission of the control information. The L CCEs correspond to a first PDCCH candidate among the set of PDCCH candidates of the search space at a subframe k are located at positions given by: L*{(Yk)mod(floor(C))}+i, wherein i−0, . . . , L−1, where Yk is defined by: Yk−(A*Yk−1+B) mod D. The variable C is determined based on the number of CCEs (NCCE) divided by the aggregation level (L), and A, B, and D are predetermined constant values predetermined regardless of the aggregation levels L. The UE decodes the control information of the PDCCH.
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公开(公告)号：US09814033B2
公开(公告)日：2017-11-07
申请号：US15262298
申请日：2016-09-12
Applicant: Optis Cellular Technology, LLC
Inventor： Dae Won Lee , Ki Jun Kim , Dong Wook Roh , Yu Jin Noh , Joon Kui Ahn , Jung Hoon Lee
CPC classification number: H04W72/042 , H04L5/0007 , H04L5/0037 , H04L5/0053 , H04L27/2626 , H04L27/2647 , H04L27/2656 , H04L27/2666 , H04W24/08 , H04W48/12 , H04W88/02 , H04W88/08
Abstract: A method for efficiently transmitting and receiving control information through a Physical Downlink Control Channel (PDCCH) is provided. When a User Equipment (UE) receives control information through a PDCCH, the received control information is set to be decoded in units of search spaces, each having a specific start position in the specific subframe. Here, a modulo operation according to a predetermined first constant value (D) is performed on an input value to calculate a first result value, and a modulo operation according to a predetermined first variable value (C) corresponding to the number of candidate start positions that can be used as the specific start position is performed on the calculated first result value to calculate a second result value and an index position corresponding to the second result value is used as the specific start position. Transmitting control information in this manner enables a plurality of UEs to efficiently receive PDCCHs without collisions.
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8.发明授权Method for effectively transmitting control signal in wireless communication system 有权无线通信系统中有效发送控制信号的方法公开(公告)号：US09350513B2
公开(公告)日：2016-05-24
申请号：US14810505
申请日：2015-07-28
Applicant: OPTIS CELLULAR TECHNOLOGY, LLC
Inventor： Joon Kui Ahn , Dae Won Lee , Young Woo Yun , Ki Jun Kim
CPC classification number: H04L5/0055 , H04L1/1812 , H04L5/14 , H04L12/1868 , H04L12/52 , H04W72/0406
Abstract: Methods and apparatus for performing HARQ performed by a user equipment (UE) are provided. A bundling indicator is received which indicates the number of bundled downlink subframes, and a determination is made whether at least one bundled downlink subframe is missed by comparing the bundling indicator with the number of detected bundled downlink subframes. A representative ACK/NACK signal is generated when no bundled downlink subframe is missed, and the representative ACK/NACK signal is transmitted on an uplink channel. Recovery capability is maximized and packet loss is reduced so that fewer ACK/NACK signals are fed back than downlink packets.
Abstract translation: 提供了由用户设备（UE）执行的用于执行HARQ的方法和装置。 接收指示捆绑的下行链路子帧的数量的捆绑指示符，并且通过将捆绑指示符与检测到的捆绑的下行链路子帧的数量进行比较来确定是否错过了至少一个捆绑的下行链路子帧。 当没有捆绑的下行链路子帧丢失时生成代表性的ACK / NACK信号，并且在上行链路信道上发送代表性的ACK / NACK信号。 恢复能力最大化，并且分组丢失减少，使得比下行链路分组反馈的ACK / NACK信号更少。
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公开(公告)号：US10374775B2
公开(公告)日：2019-08-06
申请号：US14631315
申请日：2015-02-25
Applicant: OPTIS CELLULAR TECHNOLOGY, LLC
Inventor： Dae Won Lee , Bong Hoe Kim , Young Woo Yun , Ki Jun Kim , Dong Wook Roh , Hak Seong Kim , Hyun Wook Park
Abstract: A method for transmitting uplink signals, which include ACK/NACK signals, control signals other than the ACK/NACK signals, and data signals, is disclosed. The method comprises serially multiplexing the control signals and the data signals; sequentially mapping the multiplexed signals within a specific resource region in accordance with a time-first mapping method, the specific resource region including a plurality of symbols and a plurality of virtual subcarriers; and arranging the ACK/NACK signals at both symbols near symbols to which a reference signal of the plurality of symbols is transmitted. Thus, the uplink signals can be transmitted to improve receiving reliability of signals having high priority.
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公开(公告)号：US10123321B2
公开(公告)日：2018-11-06
申请号：US15730783
申请日：2017-10-12
Applicant: Optis Cellular Technology, LLC
Inventor： Dae Won Lee , Ki Jun Kim , Dong Wook Roh , Yu Jin Noh , Joon Kui Ahn , Jung Hoon Lee
Abstract: A User Equipment (UE) receives a Physical Downlink Control Channel (PDCCH) at subframe k and decodes at the subframe k a set of PDCCH candidates including L control channel elements (CCEs). The L CCEs are contiguously located from a position given by using a variable of Yk and a modulo (N/L) operation, where N represents a total number of CCEs in the subframe k, Yk is defined by Yk=(A*Yk−1)mod D, and A and D are predetermined constant values. When k=0, Y−1 is determined based on a UE identifier having 16-bits.
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