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1. 发明授权

US11356982B2 Symbol mapping method for repetition channel coding 有权
公开(公告)号：US11356982B2
公开(公告)日：2022-06-07
申请号：US15947074
申请日：2018-04-06
申请人： Optis Cellular Technology, LLC
发明人： Yeong Hyeon Kwon , Seung Hee Han , Hyun Woo Lee , Sung Ho Moon , Jin Sam Kwak , Dong Cheol Kim , Min Seok Noh
IPC分类号： H04W72/04 , H04L1/00 , H04L1/08 , H04L5/00
摘要： A symbol mapping method for repetition coding is disclosed. The symbol mapping method comprises performing repetition coding on codeword to output repeated codeword symbols, and mapping the repeated codeword symbols with subcarriers located in different localized resource blocks. According to the embodiments of the present invention, it is possible to obtain maximum reliability in a receiving side by mapping codeword bits with subcarriers to reduce the number of bits having low reliability when a transmitting side uses repetition coding. Also, it is possible to improve decoding throughput and obtain channel diversity.

2. 发明授权

US11283580B2 Method of generating reference signal in wireless communication system 有权
公开(公告)号：US11283580B2
公开(公告)日：2022-03-22
申请号：US16883557
申请日：2020-05-26
申请人： OPTIS CELLULAR TECHNOLOGY, LLC
发明人： Seung Hee Han , Minseok Noh , Daewon Lee
IPC分类号： H04L5/00 , H04L27/26 , H04W72/04 , H04W88/02
摘要： A method of generating a reference signal includes acquiring a base sequence and acquiring a reference signal sequence with a length N from the base sequence. Good PAPR/CM characteristics of the reference signal can be kept to enhance performance of data demodulation or uplink scheduling.

3. 发明授权

US11032814B2 Decoding control information received over a control channel 有权
公开(公告)号：US11032814B2
公开(公告)日：2021-06-08
申请号：US16827892
申请日：2020-03-24
申请人： Optis Cellular Technology, LLC
发明人： Dae Won Lee , Ki Jun Kim , Dong Wook Roh , Yu Jin Noh , Joon Kui Ahn , Jung Hoon Lee
IPC分类号： H04W72/04 , H04L5/00 , H04L27/26 , H04W48/12 , H04W24/08 , H04W88/02 , H04W88/08
摘要： 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.

4. 发明申请

US20210136796A1 METHOD AND APPARATUS FOR DETERMINING ALLOCATION OF COMMUNICATION RESOURCES 有权
公开(公告)号：US20210136796A1
公开(公告)日：2021-05-06
申请号：US17146583
申请日：2021-01-12
申请人： Optis Cellular Technology, LLC
发明人： Dong Youn Seo , Eun Sun Kim , Bong Hoe Kim , Joon Kui Ahn
IPC分类号： H04W72/12 , H04L1/00 , H04L1/04 , H04L5/00 , H04W72/04
摘要： A user equipment (UE) receives downlink data using resource blocks in a wireless mobile communication system. The UE receives downlink control information including resource allocation information and downlink data mapped to physical resource blocks (PRBs) based on the downlink control information. The resource allocation information indicates virtual resource block (VRB) allocations for the UE. Indexes of the PRBs to which the downlink data are mapped are determined based on a mapping relationship between virtual resource blocks (VRBs) and the PRBs. The mapping relationship is defined based on indexes of the VRBs which are mapped to the indexes of the PRBs for a first slot of a subframe and a second slot of the subframe. The indexes of the PRBs for the second slot are shifted with respect to the indexes of the PRBs for the first slot based on a predetermined gap. The mapping relationship includes a transformation of VRB indexes based on a matrix.

5. 发明授权

US10917906B2 Method and apparatus for determining allocation of communication resources 有权
公开(公告)号：US10917906B2
公开(公告)日：2021-02-09
申请号：US16835690
申请日：2020-03-31
申请人： Optis Cellular Technology, LLC
发明人： Dong Youn Seo , Eun Sun Kim , Bong Hoe Kim , Joon Kui Ahn
IPC分类号： H04W72/12 , H04L1/00 , H04L1/04 , H04L5/00 , H04W72/04 , H04W88/08 , H04W88/02
摘要： A user equipment (UE) receives downlink data using resource blocks in a wireless mobile communication system. The UE receives downlink control information including resource allocation information and downlink data mapped to physical resource blocks (PRBs) based on the downlink control information. The resource allocation information indicates virtual resource block (VRB) allocations for the UE. Indexes of the PRBs to which the downlink data are mapped are determined based on a mapping relationship between virtual resource blocks (VRBs) and the PRBs. The mapping relationship is defined based on indexes of the VRBs which are mapped to the indexes of the PRBs for a first slot of a subframe and a second slot of the subframe. The indexes of the PRBs for the second slot are shifted with respect to the indexes of the PRBs for the first slot based on a predetermined gap. The mapping relationship includes a transformation of VRB indexes based on a matrix.

6. 发明授权

US10708030B2 Method of generating reference signal in wireless communication system 有权
公开(公告)号：US10708030B2
公开(公告)日：2020-07-07
申请号：US16031711
申请日：2018-07-10
申请人： OPTIS CELLULAR TECHNOLOGY, LLC
发明人： Seung Hee Han , Minseok Noh , Daewon Lee
IPC分类号： H04L5/00 , H04L27/26 , H04L1/00 , H04W72/04 , H04W88/02
摘要： A method of generating a reference signal includes acquiring a base sequence and acquiring a reference signal sequence with a length N from the base sequence. Good PAPR/CM characteristics of the reference signal can be kept to enhance performance of data demodulation or uplink scheduling.

7. 发明授权

US09814033B2 Receiving control information through PDCCH 有权
公开(公告)号：US09814033B2
公开(公告)日：2017-11-07
申请号：US15262298
申请日：2016-09-12
申请人： Optis Cellular Technology, LLC
发明人： Dae Won Lee , Ki Jun Kim , Dong Wook Roh , Yu Jin Noh , Joon Kui Ahn , Jung Hoon Lee
IPC分类号： H04W4/00 , H04W72/04 , H04L5/00 , H04L27/26 , H04W48/12 , H04W24/08 , H04W88/02 , H04W88/08
CPC分类号： H04W72/042 , H04L5/0007 , H04L5/0037 , H04L5/0053 , H04L27/2626 , H04L27/2647 , H04L27/2656 , H04L27/2666 , H04W24/08 , H04W48/12 , H04W88/02 , H04W88/08
摘要： 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.

8. 发明授权

US09706531B2 Symbol mapping method for repetition channel coding 有权
公开(公告)号：US09706531B2
公开(公告)日：2017-07-11
申请号：US15172137
申请日：2016-06-02
申请人： Optis Cellular Technology, LLC
发明人： Yeong Hyeon Kwon , Seung Hee Han , Hyun Woo Lee , Sung Ho Moon , Jin Sam Kwak , Dong Cheol Kim , Min Seok Noh
IPC分类号： H04W72/04 , H04L1/00 , H04L1/08 , H04L5/00
CPC分类号： H04W72/0406 , H04L1/0071 , H04L1/08 , H04L5/0007 , H04L5/0023 , H04L5/0042 , H04L5/0044 , H04L5/0058
摘要： A symbol mapping method for repetition coding is disclosed. The symbol mapping method comprises performing repetition coding on codeword to output repeated codeword symbols, and mapping the repeated codeword symbols with subcarriers located in different localized resource blocks. According to the embodiments of the present invention, it is possible to obtain maximum reliability in a receiving side by mapping codeword bits with subcarriers to reduce the number of bits having low reliability when a transmitting side uses repetition coding. Also, it is possible to improve decoding throughput and obtain channel diversity.

9. 发明授权

US09462563B2 Method and apparatus for compensating signal timing measurements for differences in signal frequencies 有权
标题翻译：用于补偿信号频率差异的信号定时测量的方法和装置
公开(公告)号：US09462563B2
公开(公告)日：2016-10-04
申请号：US13257605
申请日：2011-08-02
申请人： Iana Siomina , Muhammad Kazmi
发明人： Iana Siomina , Muhammad Kazmi
IPC分类号： H04L12/26 , H04W56/00 , H04W24/08 , H04W64/00
CPC分类号： H04W56/004 , H04W24/08 , H04W64/00
摘要： Methods (100) and apparatuses (12, 24, 38) taught herein advantageously facilitate use of timing measurements in wireless communication networks (10) where radio signal timing measurements involve signals at different carrier frequencies. The methods and apparatuses in particular compensate such timing measurements for expected discrepancies in the measurements that arise from frequency-dependent differences in the propagation behavior of the radio signals being measured. In a non-limiting example, measurements at two or more frequencies may be compensated for the frequency distance between those frequencies, or with respect to a reference frequency. In such cases, timing measurements determined for one or more other radio signals are compensated as a function of the frequency distance between the reference frequency and the frequencies of such other radio signals.
摘要翻译：本文教导的方法（100）和装置（12,24,38）有利地有助于在无线电信号定时测量涉及不同载波频率的信号的无线通信网络（10）中使用定时测量。所述方法和装置特别地将这样的定时测量补偿在由所测量的无线电信号的传播行为的频率相关差异引起的测量中的预期差异。在非限制性示例中，可以针对这些频率之间的频率距离或相对于参考频率来补偿两个或更多个频率处的测量。在这种情况下，为一个或多个其他无线电信号确定的定时测量作为参考频率与这种其它无线电信号的频率之间的频率距离的函数被补偿。

10. 发明授权

US09432937B2 Method for performing random access procedures and terminal thereof 有权
公开(公告)号：US09432937B2
公开(公告)日：2016-08-30
申请号：US14591399
申请日：2015-01-07
申请人： OPTIS CELLULAR TECHNOLOGY, LLC
发明人： Seung-June Yi , Sung-Jun Park , Young-Dae Lee , Sung-Duck Chun
IPC分类号： H04W74/00 , H04W52/02 , H04W24/00 , H04W72/04 , H04W74/08 , H04W24/08
CPC分类号： H04W52/0216 , H04W24/00 , H04W24/08 , H04W72/042 , H04W74/002 , H04W74/006 , H04W74/008 , H04W74/0808 , H04W74/0833 , Y02D70/00 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/24
摘要： A random access procedure between a mobile terminal and a network is performed based upon the characteristics of a RACH preamble. If the RACH preamble was explicitly signaled by the network, a downlink channel is monitored until a new transmission is indicated according to radio resource allocation information received from the network. If the RACH preamble was not explicitly signaled by the network, a contention resolution timer is started and the downlink channel is monitored until the contention resolution timer expires. Such monitoring of downlink channels in a more efficient manner, results in effective reduction in power consumption.

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