公开(公告)号：US20210266884A1

公开(公告)日：2021-08-26

申请号：US17317001

申请日：2021-05-11

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 ,  H04L5/00 ,  H04L27/26 ,  H04W48/12 ,  H04W24/08

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.

公开(公告)号：US20170332398A1

公开(公告)日：2017-11-16

申请号：US15666847

申请日：2017-08-02

Applicant: Optis Cellular Technology, LLC

Inventor： Dong Youn SEO ,  Eun Sun KIM ,  Bong Hoe KIM ,  Joon Kui AHN

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04L1/00 ,  H04L1/04 ,  H04W88/08 ,  H04W88/02

CPC classification number: H04W72/1268 ,  H04L1/0071 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0028 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0085 ,  H04L5/0092 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1273 ,  H04W88/02 ,  H04W88/08

Abstract: A user equipment (UE) receives downlink data using resource blocks in a wireless mobile communication system. The UE includes a processor coupled to a radio receiver that receives downlink control information including resource allocation information for the downlink data and to receive the downlink data mapped to physical resource blocks (PRBs) based on the downlink control information that indicates virtual resource block (VRB) allocations for the user equipment. Indexes of the PRBs to which the downlink data are mapped are based on a mapping relationship between VRBs and the PRBs. The indexes of the VRBs are mapped to the indexes of the PRBs for a number of slots included in a subframe, the subframe having a first part and a second part. When distributed VRBs are used, indexes of the PRBs for an odd-numbered slot are shifted with respect to indexes of the PRBs for an even-numbered slot based on a predetermined gap, and an index of one of the PRBs on each of the number of slots included in the subframe that is mapped to an index of one of the VRBs is determined based on a value of the predetermined gap and a number of the VRBs. When localized VRBs are used, the indexes of the PRBs for the second part are not separated with respect to the indexes of the PRBs for the first part.

公开(公告)号：US20170034846A1

公开(公告)日：2017-02-02

申请号：US15293370

申请日：2016-10-14

Applicant: Optis Cellular Technology, LLC

Inventor： Dong Youn SEO ,  Eun Sun KIM ,  Bong Hoe KIM ,  Joon Kui AHN

IPC: H04W72/12 ,  H04L1/04 ,  H04W72/04

CPC classification number: H04W72/1268 ,  H04L1/0071 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0028 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0085 ,  H04L5/0092 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1273 ,  H04W88/02 ,  H04W88/08

Abstract: A user equipment (UE) receives downlink data using resource blocks in a wireless mobile communication system. The UE includes data processing circuitry coupled to a receiver that receives downlink control information including resource allocation information for the downlink data from a base station and to receive the 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 user equipment. Each resource block corresponds to one time slot. A resource block pair includes a first resource block associated with a first time slot and a second resource block associated with a second time slot adjacent to the first time slot. The first and second resource blocks are allocated to the same frequency indices. A mapping relationship between VRB pairs and PRB pairs exists such that frequency consecutive VRB pairs are mapped to non-frequency consecutive PRB pairs and that each resource block pair is split so there is a frequency gap between the first and second parts of the resource block pair. The resource allocation information indicates the frequency gap size is one of a first value and a second different value.

Abstract translation: 用户设备（UE）使用无线移动通信系统中的资源块接收下行链路数据。 UE包括耦合到接收机的数据处理电路，其接收包括来自基站的下行链路数据的资源分配信息的下行链路控制信息，并且基于下行链路控制信息接收映射到物理资源块（PRB）的下行链路数据。 资源分配信息表示用户设备的虚拟资源块（VRB）分配。 每个资源块对应于一个时隙。 资源块对包括与第一时隙相关联的第一资源块和与第一时隙相邻的第二时隙相关联的第二资源块。 第一和第二资源块被分配给相同的频率索引。 存在VRB对和PRB对之间的映射关系，使得频率连续的VRB对被映射到非频率连续的PRB对，并且每个资源块对被分离，从而在资源块对的第一和第二部分之间存在频率间隙 。 资源分配信息表示频率间隙大小是第一值和第二不同值之一。

公开(公告)号：US20150208406A1

公开(公告)日：2015-07-23

申请号：US14656833

申请日：2015-03-13

Applicant: Optis Cellular Technology, LLC

Inventor： Dong Youn SEO ,  Eun Sun KIM ,  Bong Hoe KIM ,  Joon Kui AHN

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04W72/1268 ,  H04L1/0071 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0028 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0085 ,  H04L5/0092 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1273 ,  H04W88/02 ,  H04W88/08

Abstract: In a wireless mobile communication system, user equipment receives downlink data and downlink control information including resource allocation information for the downlink data from a base station. Downlink data is mapped to physical resource blocks (PRBs) based on the downlink control information. The resource allocation information indicates virtual resource block (VRB) allocations for the user equipment. Indexes of PRBs to which the downlink data are mapped are determined based on mapping relationship between VRBs and the PRBs. The mapping relationship is defined such that indexes of the VRBs are mapped to indexes of the PRBs for a first part and a second part of a subframe. The received downlink control information includes control information that determines whether the indexes of the PRBs for the second part are separated with respect to the indexes of the PRBs for the first part based on a predetermined gap in a distributed mode where distributed VRBs are used or whether the indexes of the PRBs for the second part are not separated with respect to the indexes of the PRBs for the first part in a non-distributed mode where localized VRBs are used.

Abstract translation: 在无线移动通信系统中，用户设备从基站接收包括下行链路数据的资源分配信息的下行链路数据和下行链路控制信息。 下行链路数据基于下行链路控制信息映射到物理资源块（PRB）。 资源分配信息表示用户设备的虚拟资源块（VRB）分配。 基于VRB和PRB之间的映射关系确定下行链路数据映射到的PRB的索引。 定义映射关系，使得VRB的索引被映射到子帧的第一部分和第二部分的PRB的索引。 所接收的下行链路控制信息包括控制信息，该控制信息基于在使用分布式VRB的分布式模式中的预定间隙，确定第二部分的PRB的索引是否相对于第一部分的PRB的索引分离， 第二部分的PRB的索引相对于使用局部VRB的非分布式模式中的第一部分的PRB的索引没有被分离。

公开(公告)号：US20190090260A1

公开(公告)日：2019-03-21

申请号：US16132533

申请日：2018-09-17

Applicant: Optis Cellular Technology, LLC

Inventor： Dong Youn SEO ,  Eun Sun KIM ,  Bong Hoe KIM ,  Joon Kui AHN

IPC: H04W72/12 ,  H04L1/00 ,  H04L1/04 ,  H04W72/04 ,  H04L5/00 ,  H04W88/08 ,  H04W88/02

Abstract: 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. A resource block pair includes a first resource block associated with a first time slot and a second resource block associated with a second time slot adjacent to the first time slot. The first and second resource blocks are allocated to the same frequency indices. A mapping between VRB pairs and PRB pairs exists such that frequency consecutive VRB pairs are mapped to non-frequency consecutive PRB pairs and that each resource block pair is split so there is a frequency gap between the first and second parts of the resource block pair.

公开(公告)号：US20190029008A1

公开(公告)日：2019-01-24

申请号：US16142027

申请日：2018-09-26

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 ,  H04W24/08

Abstract: A User Equipment (UE) receives control information via a Physical Downlink Control Channel (PDCCH) at subframe k. A decoder monitors a set of PDCCH candidates 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 UE-specific search space is given based on a modulus operation using variables Yk and C for the subframe k. Yk is defined by: Yk=(A*Yk−1+B) mod D. C is determined based on the number of CCEs (NCCE) divided by the aggregation level (L). A, B, and D are predetermined constant values regardless of the aggregation levels (L). Y−1 is determined based on a UE identifier having 16-bits when k=0. The decoder decodes the control information of the PDCCH.

公开(公告)号：US20180035414A1

公开(公告)日：2018-02-01

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W24/08 ,  H04L27/26 ,  H04W48/12 ,  H04W88/08 ,  H04W88/02

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 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.

公开(公告)号：US20150333892A1

公开(公告)日：2015-11-19

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

IPC: H04L5/00 ,  H04L5/14 ,  H04W72/04

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。

公开(公告)号：US20200229220A1

公开(公告)日：2020-07-16

申请号：US16835690

申请日：2020-03-31

Applicant: Optis Cellular Technology, LLC

Inventor： Dong Youn SEO ,  Eun Sun KIM ,  Bong Hoe KIM ,  Joon Kui AHN

IPC: H04W72/12 ,  H04L1/00 ,  H04L1/04 ,  H04L5/00 ,  H04W72/04

Abstract: 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.

公开(公告)号：US20200229160A1

公开(公告)日：2020-07-16

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

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W48/12 ,  H04W24/08

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−1B) 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.