公开(公告)号：US09380459B2

公开(公告)日：2016-06-28

申请号：US13679760

申请日：2012-11-16

Applicant: Samsung Electronics Co., Ltd

Inventor： Hyun-Jeong Kang ,  Young-Kyo Baek ,  Rakesh Taori ,  Jung-Soo Jung

IPC: H04L29/06 ,  H04W12/04 ,  H04W12/06

CPC classification number: H04W12/04 ,  H04L63/062 ,  H04W12/06 ,  H04W88/08

Abstract: Provided is a method for managing a security key for communication authentication with a Mobile Station (MS) in a communication system. The method includes acquiring a first authentication key by performing an authentication procedure for the communication authentication in a cloud cell having member Base Stations (BSs) that include a master BS and at least one slave BS for providing a service to the MS; and communicating with at least one member BS using a first encryption key that is generated using the first authentication key.

Abstract translation: 提供一种用于在通信系统中管理与移动站（MS）的通信认证的安全密钥的方法。 该方法包括通过在具有包括主BS和至少一个从BS的成员基站（BS）的云小区中执行用于通信认证的认证过程来获取第一认证密钥，用于向MS提供服务; 以及使用使用所述第一认证密钥生成的第一加密密钥与至少一个成员BS进行通信。

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：US20160119043A1

公开(公告)日：2016-04-28

申请号：US14599357

申请日：2015-01-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sridhar Rajagopal ,  Rakesh Taori

IPC: H04B7/04

CPC classification number: H04B7/063 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/086 ,  H04B7/088

Abstract: A method of providing multiple station beam refinement in a mmWave wireless network comprising an access point (AP) and a plurality of stations (STAs) is provided. The method includes providing an AP configured to selectively transmit wireless signals to a plurality of directional sectors and to selectively receive wireless signals from the plurality of directional sectors. The method further includes operating the AP to at least one of provide simultaneous transmit beam refinement for the plurality of STAs, provide simultaneous receive beam refinement for the plurality of STAs, receive simultaneous transmit beam refinement from the plurality of STAs, and receive simultaneous receive beam refinement from the plurality of STAs.

Abstract translation: 提供了一种在包括接入点（AP）和多个站（STA）的mmWave无线网络中提供多站波束精化的方法。 该方法包括提供被配置为选择性地将无线信号发送到多个定向扇区并且有选择地从多个定向扇区接收无线信号的AP。 所述方法还包括将所述AP操作为为所述多个STA提供同时发射波束细化的至少一个，为所述多个STA提供同时的接收波束细化，从所述多个STA接收同时发射波束细化，以及接收同时接收波束 从多个STA进行细化。

公开(公告)号：US20140241242A1

公开(公告)日：2014-08-28

申请号：US14035596

申请日：2013-09-24

Applicant: Samsung Electronics Co., LTD

Inventor： Kaushik Morapakkam Josiam ,  Rakesh Taori

IPC: H04L5/00 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W88/08 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0091 ,  H04W88/02

Abstract: Base station (BS) and mobile station (MS) methods and apparatus are provided. The BS configures an uplink sounding channel made up of at least one OFDM symbol in an uplink slot. The BS signals to the MS use and location of different configurations of the uplink sounding channel via a system configuration broadcast message. The uplink sounding channel comprises OFDM symbols where one or more of a subcarrier spacing and a sampling frequency is different from that of OFDM symbol used for data transmission. Each OFDM symbol comprises a sounding reference symbol corresponding to at least one transmit beam and is received by at least one receive beam to form at least one transmit-receive beam pair. The at least one transmit-receive beam pair for UL-SRS in different OFDM symbols are different. The sounding channel configuration is based on information received from neighboring BSs via inter-BS coordination over a pre-defined interface.

Abstract translation: 提供了基站（BS）和移动站（MS）的方法和装置。 BS在上行链路时隙中配置由至少一个OFDM符号组成的上行链路探测信道。 BS通过系统配置广播消息向MS使用和定位上行链路探测信道的不同配置。 上行链路探测信道包括OFDM符号，其中子载波间隔和采样频率中的一个或多个与用于数据传输的OFDM符号的一个或多个不同。 每个OFDM符号包括对应于至少一个发射波束的探测参考符号，并且被至少一个接收波束接收以形成至少一个发射 - 接收波束对。 用于不同OFDM符号中的UL-SRS的至少一个发射 - 接收波束对是不同的。 探测信道配置基于经由预定义接口经由BS间协调从相邻BS接收的信息。

公开(公告)号：US20140023022A1

公开(公告)日：2014-01-23

申请号：US14035439

申请日：2013-09-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shan CHENG ,  Rakesh Taori

IPC: H04L5/00

CPC classification number: H04W72/1215 ,  H04L1/1812 ,  H04L5/0005 ,  H04L5/0042 ,  H04L5/0053 ,  H04L5/006 ,  H04W16/14 ,  H04W88/06

Abstract: A method and apparatus for simultaneously communicating on at least two carrier frequencies, of which at least one carrier frequency is a licensed band and at least one carrier frequency is an unlicensed band, includes broadcasting an operating status of the unlicensed band to a receiver device, collecting feedback data regarding channel conditions from the receiver device for both the licensed band and unlicensed band, determining, when a bandwidth request is received from the receiver device, whether to use the unlicensed band based on the channel conditions, transmitting an unlicensed band scheduling indication to the receiver device, and communicating with the receiver device using both the licensed band and the unlicensed band according to the transmitted unlicensed band scheduling indication.

公开(公告)号：US20130322375A1

公开(公告)日：2013-12-05

申请号：US13907414

申请日：2013-05-31

Applicant: Samsung Electronics Co., Ltd

Inventor： Young-Bin Chang ,  Rakesh Taori ,  Hyun-Jeong Kang ,  Jung-Shin Park ,  Yeong-Moon Son

IPC: H04W72/04

Abstract: A method and an apparatus of cooperating with a plurality of base stations in a wireless communication system. A cloud cell is configured with a plurality of base stations that cooperate with each other for a mobile station and synchronizes user contexts for serving the mobile station among the plurality of base stations included in the cloud cell, and the plurality of base stations cooperate with each other to provide a communication service to the mobile station. The present disclosure reduces generation of a handover when the mobile station moves between base stations, and increases the data yield of the mobile station by transmitting and receiving data in cooperation with base stations in a cloud cell at a shaded area or a cell border.

Abstract translation: 一种在无线通信系统中与多个基站协作的方法和装置。 云单元被配置有多个基站，用于移动站彼此协作，并且在云单元中包括的多个基站之间同步用于服务移动站的用户上下文，并且多个基站与每个基站协作 另外向移动台提供通信服务。 本公开减少了移动台在基站之间移动时的切换生成，并且通过与阴影区域或小区边界中的云小区中的基站协作发送和接收数据来提高移动站的数据收益。

公开(公告)号：US11418633B2

公开(公告)日：2022-08-16

申请号：US16806165

申请日：2020-03-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kaushik M. Josiam ,  Rakesh Taori

IPC: H04L69/22 ,  H04B7/0452 ,  H04W72/12 ,  H04L65/40 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12

Abstract: Methods and apparatuses for scheduling and indicating scheduling information in a wireless local area network (WLAN). A station (STA) includes a transceiver configured to receive a header for a protocol data unit and a controller configured to identify common information for a plurality of STAs that are scheduled in the WLAN from a common field in the header and to identify user-specific information for the STA from a user-specific field in the header that follows the common field. An access point (AP) includes a controller configured to include common information for a plurality STAs that are scheduled in the WLAN in a common field in a header of a protocol data unit, and to include user-specific information for the STAs in a user-specific field in the header that follows the common field. The AP also includes a transceiver configured to transmit the protocol data unit including the header.

公开(公告)号：US10411780B2

公开(公告)日：2019-09-10

申请号：US14757415

申请日：2015-12-23

Applicant: Samsung Electronics Co., LTD

Inventor： Sridhar Rajagopal ,  Rakesh Taori

IPC: H04B7/06 ,  H04B7/08 ,  H04W72/04

Abstract: Methods and apparatuses for association in a beamformed wireless area network (WLAN) are provided. A method for operating a station (STA) includes randomly selecting a plurality of sector sweep frames for association beam transmission within a frame-aligned transmit sector sweep duration in an association beamforming training duration of a beacon interval, transmitting a beam in each of the randomly selected sector sweep frames, and receiving sector sweep feedback from an access point (AP). A method for operating the AP includes receiving at least one transmission from one or more STAs on at least one of randomly selected sector sweep frames within the frame-aligned transmit sector sweep duration, selecting a sector identifier for transmissions from each of the one or more STAs based on the at least one received transmission, and transmitting grouped sector sweep feedback indicating the selected sector identifier for transmissions from each of the one or more STAs.

公开(公告)号：US10411775B2

公开(公告)日：2019-09-10

申请号：US15369798

申请日：2016-12-05

Applicant: Samsung Electronics Co., Ltd

Inventor： Youngbin Chang ,  Rakesh Taori

IPC: H04B7/06 ,  H01Q1/12 ,  H01Q1/24 ,  H01Q3/26 ,  H04B7/08

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to one embodiment, an apparatus for beamforming includes a detector for measuring at least one change of movement and rotation of an apparatus; and a calculator for determining a beamforming parameter for aligning a beam direction with another apparatus by compensating for the change of the beam direction according to at least one of the movement and the rotation.

公开(公告)号：US09918333B2

公开(公告)日：2018-03-13

申请号：US14858534

申请日：2015-09-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shan Cheng ,  Rakesh Taori

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/18 ,  H04W16/14 ,  H04W88/06

CPC classification number: H04W72/1215 ,  H04L1/1812 ,  H04L5/0005 ,  H04L5/0042 ,  H04L5/0053 ,  H04L5/006 ,  H04W16/14 ,  H04W88/06

Abstract: A method and apparatus for simultaneously communicating on at least two carrier frequencies, of which at least one carrier frequency is a licensed band and at least one carrier frequency is an unlicensed band, includes broadcasting an operating status of the unlicensed band to a receiver device, collecting feedback data regarding channel conditions from the receiver device for both the licensed band and unlicensed band, determining, when a bandwidth request is received from the receiver device, whether to use the unlicensed band based on the channel conditions, transmitting an unlicensed band scheduling indication to the receiver device, and communicating with the receiver device using both the licensed band and the unlicensed band according to the transmitted unlicensed band scheduling indication.