公开(公告)号：US20140334564A1

公开(公告)日：2014-11-13

申请号：US14185863

申请日：2014-02-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaspreet Singh ,  Sudhir Ramakrishna

IPC: H04B7/04

CPC classification number: H04B7/0413 ,  H04B7/0456 ,  H04B7/0617

Abstract: A method for providing low-complexity hybrid precoding is provided. The method includes identifying a subset of a plurality of precoding sets as a reduced search space. A search is performed over the reduced search space for a preferred precoding set. Identifying the reduced search space may include determining at least one parameter, such as received power, for each of a plurality of beam directions.

Abstract translation: 提供了一种用于提供低复杂度混合预编码的方法。 该方法包括将多个预编码集合的子集识别为缩减的搜索空间。 对于优选的预编码集合在缩小的搜索空间上执行搜索。 识别减小的搜索空间可以包括为多个波束方向中的每一个确定至少一个参数，例如接收的功率。

公开(公告)号：US20130235851A1

公开(公告)日：2013-09-12

申请号：US13652279

申请日：2012-10-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Shadi Abu-Surra ,  Sridhar Rajagopal ,  Ying Li ,  Jaspreet Singh ,  Zhouyue Pi

IPC: H04W72/04

CPC classification number: H04W72/044 ,  H04B7/0408 ,  H04B7/0891 ,  H04J11/0069 ,  H04W56/00 ,  H04W72/042

Abstract: Beam-steered millimeter wave signals transmitted in each of n sector slices include a sequence of primary synchronization (PSCH) symbols within predetermined symbol positions in at least one slot of a subframe. The symbols in consecutive symbol positions are each transmitted on a different one of the n slices, with the first symbol repeated on the same slice at the end. The sequence order rotates cyclically in each subframe so that two PSCH symbols are transmitted on one slice in a single subframe every nth subframe. Secondary synchronization (SSCH) and Broadcast Channel (BCH) symbols are transmitted in a predetermined pattern following the sequence of PSCH symbols. By transmitting consecutive PSCH symbols on different slices and repeating the first symbol, the mobile station can detect the best slice and beam by switching receive beams every subframe instead of every slot, relaxing time constraints on AGC adjustment while avoiding the start-at-the-edge problem.

Abstract translation: 在n个扇区片段中的每一个中发送的光束转向毫米波信号包括在子帧的至少一个时隙中的预定符号位置内的主同步（PSCH）符号序列。 连续符号位置中的符号各自在n个片上的不同的一个上被发送，其中第一个符号在最后的同一片上重复。 序列顺序在每个子帧中循环旋转，使得在每第n个子帧中在单个子帧中的一个片上发送两个PSCH符号。 按照PSCH符号序列之后的预定模式发送辅同步（SSCH）和广播信道（BCH）符号。 通过在不同的片上发送连续的PSCH符号并重复第一个符号，移动台可以通过每个子帧而不是每个时隙切换接收波束来检测最佳切片和波束，放宽对AGC调整的时间约束，同时避免起始时间， 边缘问题。

公开(公告)号：US20160028454A1

公开(公告)日：2016-01-28

申请号：US14537759

申请日：2014-11-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaspreet Singh

IPC: H04B7/04 ,  H04B17/10 ,  H04B1/3827 ,  H04W24/02

CPC classification number: H04B7/0456 ,  H04B1/0007 ,  H04B1/3827 ,  H04L25/0224 ,  H04L27/2647 ,  H04W52/0212 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/40

Abstract: A method for a wireless device capable of receiving and transmitting a signal includes receiving a reference signal from a second wireless device through a communication channel, estimating the communication channel, using the reference signal, selecting a pair of an analogue digital converter (ADC) quantizer and an input distribution, based on the estimated communication channel, and sending information on the selected input distribution and the ADC quantizer to the second wireless device. A wireless device capable of wirelessly receiving and transmitting a signal includes a transceiver configured to receive a reference signal from a second wireless device through a communication channel, and a processor configured to estimate the communication channel, using the reference signal, selecting a pair of an ADC quantizer and an input distribution, based on the estimated communication channel, and sending information on the selected input distribution and the ADC quantizer to the second wireless device.

Abstract translation: 一种能够接收和发送信号的无线设备的方法包括通过通信信道从第二无线设备接收参考信号，使用参考信号估计通信信道，选择一对模拟数字转换器（ADC）量化器 以及基于所估计的通信信道的输入分布，以及将所选输入分布和ADC量化器上的信息发送到第二无线设备。 能够无线地接收和发送信号的无线设备包括被配置为通过通信信道从第二无线设备接收参考信号的收发机，以及被配置为使用参考信号来估计通信信道的处理器，选择一对 ADC量化器和基于估计的通信信道的输入分布，以及将所选输入分布和ADC量化器上的信息发送到第二无线设备。

公开(公告)号：US09838169B2

公开(公告)日：2017-12-05

申请号：US14823823

申请日：2015-08-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sridhar Rajagopal ,  Rakesh Taori ,  Sudhir Ramakrishna ,  Jaspreet Singh ,  Shadi Abu-Surra

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

CPC classification number: H04L5/0007 ,  H04L5/001 ,  H04L5/0091 ,  H04L27/2602 ,  H04W72/048

Abstract: A user equipment, apparatus, and method are provided for wireless communication using an IG-OFDM structure. An apparatus is configured to transmit a known reference signal. The apparatus is configured to receive, in response to the reference signal and from at least one user equipment (UE), capability information that includes at least one of the sub-band bandwidth or number of independently decodable sub-bands that can be dynamically turned on or off by the at least one UE. The apparatus is configured to define an interleaved guard OFDM (IG-OFDM) structure according to the received capability information, the IG-OFDM structure including guard tones distributed within an OFDM symbol where there is no signal transmission on these guard tones. The apparatus is configured to communicate with the at least one UE using a transmitted waveform that is shaped according to the IG-OFDM structure.

公开(公告)号：US20160128072A1

公开(公告)日：2016-05-05

申请号：US14823823

申请日：2015-08-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sridhar Rajagopal ,  Rakesh Taori ,  Sudhir Ramakrishna ,  Jaspreet Singh ,  Shadi Abu-Surra

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0007 ,  H04L5/001 ,  H04L5/0091 ,  H04L27/2602 ,  H04W72/048

Abstract: A user equipment, apparatus, and method are provided for wireless communication using an IG-OFDM structure. An apparatus is configured to transmit a known reference signal. The apparatus is configured to receive, in response to the reference signal and from at least one user equipment (UE), capability information that includes at least one of the sub-band bandwidth or number of independently decodable sub-bands that can be dynamically turned on or off by the at least one UE. The apparatus is configured to define an interleaved guard OFDM (IG-OFDM) structure according to the received capability information, the IG-OFDM structure including guard tones distributed within an OFDM symbol where there is no signal transmission on these guard tones. The apparatus is configured to communicate with the at least one UE using a transmitted waveform that is shaped according to the IG-OFDM structure.

Abstract translation: 提供了一种用于使用IG-OFDM结构的无线通信的用户设备，装置和方法。 一种装置被配置为发送已知的参考信号。 该装置被配置为响应于参考信号并且从至少一个用户设备（UE）接收包括可以动态地转换的子带宽或独立可解码子带中的至少一个的能力信息 由所述至少一个UE开启或关闭。 该装置被配置为根据接收到的能力信息来定义交织的保护OFDM（IG-OFDM）结构，该IG-OFDM结构包括分布在OFDM符号内的保护音调，其中在这些保护音调上没有信号传输。 该装置被配置为使用根据IG-OFDM结构成形的发送波形与至少一个UE进行通信。

公开(公告)号：US20150124738A1

公开(公告)日：2015-05-07

申请号：US14473875

申请日：2014-08-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sudhir Ramakrishna ,  Jaspreet Singh

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/0404 ,  H04B7/0456 ,  H04B7/0697 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0224 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04W72/0413 ,  H04W72/046

Abstract: A method and an apparatus for channel estimation. The method includes identifying a set of preferred BS receive beams for each of a plurality of BS antenna SAs based on periodic pilot transmissions from a UE transmitted using predefined UE transmit beams. The method also includes transmitting a request for the UE to transmit pilot signals for the set of preferred BS receive beams. The method further includes receiving the pilot signals using the set of preferred BS receive beams. The method also includes performing channel estimation and determining the data transmission parameters based on the received pilot signals, the data transmission parameters including at least one receive beam at each UE antenna SA to be used for data reception. Additionally, the method includes transmitting, to the UE, information for identifying the at least one receive beam at each UE antenna SA to be used for data reception.

Abstract translation: 一种用于信道估计的方法和装置。 该方法包括基于使用预定义的UE发送波束发送的来自UE的周期性导频传输来识别多个BS天线SA中的每一个的优选BS接收波束集合。 该方法还包括发送对UE发送用于该组优选BS接收波束的导频信号的请求。 该方法还包括使用该组优选的BS接收波束来接收导频信号。 该方法还包括基于所接收的导频信号执行信道估计和确定数据传输参数，数据传输参数包括用于数据接收的每个UE天线SA处的至少一个接收波束。 此外，该方法包括向UE发送用于识别用于数据接收的每个UE天线SA处的至少一个接收波束的信息。

公开(公告)号：US08958412B2

公开(公告)日：2015-02-17

申请号：US13872844

申请日：2013-04-29

Applicant: Samsung Electronics Co., Ltd

Inventor： Jaspreet Singh ,  Zhouyue Pi ,  Ying Li

IPC: H04W56/00

CPC classification number: H04W56/004 ,  H04W56/00 ,  H04W56/0045

Abstract: A mobile station is configured to perform a method for uplink timing alignment in a wireless network. The method includes receiving a first downlink synchronization signal from a base station on a first beam pair at a first time associated with a first propagation delay. The method also includes receiving a second downlink synchronization signal from the base station on a second beam pair at a second time associated with a second propagation delay. The method further includes determining a second timing advance for the second beam pair based on a known first timing advance for the first beam pair and a time difference between the first time and the second time.

Abstract translation: 移动台被配置为执行无线网络中的上行链路定时对准的方法。 该方法包括在与第一传播延迟相关联的第一时间从第一波束对上的基站接收第一下行链路同步信号。 该方法还包括在与第二传播延迟相关联的第二时间从基站接收第二波束对上的第二下行链路同步信号。 该方法还包括基于第一波束对的已知第一定时提前和第一时间与第二时间之间的时间差确定第二波束对的第二定时提前。

公开(公告)号：US20130301619A1

公开(公告)日：2013-11-14

申请号：US13872844

申请日：2013-04-29

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Jaspreet Singh ,  Zhouyue Pi ,  Ying Li

IPC: H04W56/00

CPC classification number: H04W56/004 ,  H04W56/00 ,  H04W56/0045

Abstract: A mobile station is configured to perform a method for uplink timing alignment in a wireless network. The method includes receiving a first downlink synchronization signal from a base station on a first beam pair at a first time associated with a first propagation delay. The method also includes receiving a second downlink synchronization signal from the base station on a second beam pair at a second time associated with a second propagation delay. The method further includes determining a second timing advance for the second beam pair based on a known first timing advance for the first beam pair and a time difference between the first time and the second time.

Abstract translation: 移动台被配置为执行无线网络中的上行链路定时对准的方法。 该方法包括在与第一传播延迟相关联的第一时间从第一波束对上的基站接收第一下行链路同步信号。 该方法还包括在与第二传播延迟相关联的第二时间从基站接收第二波束对上的第二下行链路同步信号。 该方法还包括基于第一波束对的已知第一定时提前和第一时间与第二时间之间的时间差确定第二波束对的第二定时提前。

公开(公告)号：US09712218B2

公开(公告)日：2017-07-18

申请号：US14537759

申请日：2014-11-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaspreet Singh

IPC: H04B7/0456 ,  H04B1/3827 ,  H04W52/02 ,  H04L25/02 ,  H04B1/00 ,  H04L27/26

CPC classification number: H04B7/0456 ,  H04B1/0007 ,  H04B1/3827 ,  H04L25/0224 ,  H04L27/2647 ,  H04W52/0212 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/40

Abstract: A method for a wireless device capable of receiving and transmitting a signal includes receiving a reference signal from a second wireless device through a communication channel, estimating the communication channel, using the reference signal, selecting a pair of an analog digital converter (ADC) quantizer and an input distribution, based on the estimated communication channel, and sending information on the selected input distribution and the ADC quantizer to the second wireless device. A wireless device capable of wirelessly receiving and transmitting a signal includes a transceiver configured to receive a reference signal from a second wireless device through a communication channel, and a processor configured to estimate the communication channel, using the reference signal, selecting a pair of an ADC quantizer and an input distribution, based on the estimated communication channel, and sending information on the selected input distribution and the ADC quantizer to the second wireless device.

公开(公告)号：US09491755B2

公开(公告)日：2016-11-08

申请号：US13652279

申请日：2012-10-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shadi Abu-Surra ,  Sridhar Rajagopal ,  Ying Li ,  Jaspreet Singh ,  Zhouyue Pi

IPC: H04W72/04 ,  H04J11/00 ,  H04W56/00 ,  H04B7/04 ,  H04B7/08

CPC classification number: H04W72/044 ,  H04B7/0408 ,  H04B7/0891 ,  H04J11/0069 ,  H04W56/00 ,  H04W72/042

Abstract: Beam-steered millimeter wave signals transmitted in each of n sector slices include a sequence of primary synchronization (PSCH) symbols within predetermined symbol positions in at least one slot of a subframe. The symbols in consecutive symbol positions are each transmitted on a different one of the n slices, with the first symbol repeated on the same slice at the end. The sequence order rotates cyclically in each subframe so that two PSCH symbols are transmitted on one slice in a single subframe every nth subframe. Secondary synchronization (SSCH) and Broadcast Channel (BCH) symbols are transmitted in a predetermined pattern following the sequence of PSCH symbols. By transmitting consecutive PSCH symbols on different slices and repeating the first symbol, the mobile station can detect the best slice and beam by switching receive beams every subframe instead of every slot, relaxing time constraints on AGC adjustment while avoiding the start-at-the-edge problem.

Abstract translation: 在n个扇区片段中的每一个中发送的光束转向毫米波信号包括在子帧的至少一个时隙中的预定符号位置内的主同步（PSCH）符号序列。 连续符号位置中的符号各自在n个片上的不同的一个上被发送，其中第一个符号在最后的同一片上重复。 序列顺序在每个子帧中循环旋转，使得在每第n个子帧中在单个子帧中的一个片上发送两个PSCH符号。 按照PSCH符号序列之后的预定模式发送辅同步（SSCH）和广播信道（BCH）符号。 通过在不同的片上发送连续的PSCH符号并重复第一个符号，移动台可以通过每个子帧而不是每个时隙切换接收波束来检测最佳切片和波束，放宽对AGC调整的时间约束，同时避免起始时间， 边缘问题。