公开(公告)号：USRE45635E1

公开(公告)日：2015-07-28

申请号：US13869544

申请日：2013-04-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kaushik Josiam ,  Zhouyue Pi ,  Ying Li ,  Hwasun Yoo

IPC: H04L27/00 ,  H04L5/00 ,  H04L29/06

CPC classification number: H04L5/0048 ,  H04L29/0653 ,  H04W72/0413 ,  H04W74/004

Abstract: For use in a wireless communication network, a mobile station configured to determine a preamble sequence from a set of indexed preamble sequences by generating an index of the preamble sequence from a B-bit message is provided. The mobile station is configured to group the B bits of the message into n groups, each group having a substantially equal number of bits. The mobile station is also configured to generate a parity bit from each of the n groups. The mobile station is further configured to determine the index of the preamble sequence based on the n parity bits. The mobile station is still further configured to transmit the preamble sequence corresponding to the index of the preamble sequence. A base station configured to recover the B-bit message using the received signal from the mobile station is also provided.

Abstract translation: 为了在无线通信网络中使用，提供了被配置为通过从B比特消息生成前导码序列的索引来从一组索引的前同步码序列中确定前置码序列的移动台。 移动台被配置为将消息的B比特分组为n组，每组具有基本上相等数量的比特。 移动站还被配置为从n个组中的每一个生成奇偶校验位。 移动站还被配置为基于n个奇偶校验位来确定前导码序列的索引。 移动站还被配置为发送与前同步码序列的索引对应的前同步码序列。 还提供了一种被配置为使用来自移动台的接收信号来恢复B比特消息的基站。

公开(公告)号：US20140128109A1

公开(公告)日：2014-05-08

申请号：US14037200

申请日：2013-09-25

Applicant: Samsung Electronics Co., LTD

Inventor： Ying Li ,  Kaushik Josiam ,  Rakesh Taori

IPC: H04W68/00

CPC classification number: H04W68/02 ,  H04W16/28

Abstract: A mobile station performs a method for paging configuration in a wireless network. The method includes transmitting, to a base station, a parameter M representing a number of receiving (RX) beam instances at the mobile station in idle mode for the mobile station to finish one round of beam steering. The method also includes determining a timing for receiving a paging message from the base station, the timing being a function of the parameter M, the paging message comprising a mobile station identifier. The method further includes receiving the paging message from the base station based on the determined timing.

Abstract translation: 移动台在无线网络中执行寻呼配置的方法。 该方法包括向移动台向基站发送表示移动站处于空闲模式的接收（RX）波束实例的数量的参数M，以使移动台完成一轮波束转向。 该方法还包括确定从基站接收寻呼消息的定时，定时是参数M的函数，寻呼消息包括移动台标识符。 该方法还包括基于所确定的定时从基站接收寻呼消息。

公开(公告)号：US09661612B2

公开(公告)日：2017-05-23

申请号：US13920965

申请日：2013-06-18

Applicant: Samsung Electronics Co., LTD

Inventor： Kaushik Josiam ,  Zhouyue Pi ,  Ying Li

IPC: H04W72/04 ,  H04W56/00 ,  H04L5/00 ,  H04B7/08 ,  H04L27/26

CPC classification number: H04W72/0406 ,  H04B7/086 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2607 ,  H04W56/0045

Abstract: Methods and apparatus of a base station (BS) or a user equipment (UE) that communicate with each other via one or more directional beams. The BS sends and the UE receives a timing advance (TA). The BS receives information sent by the UE via a receive beam of the one or more directional beams of the BS and via an uplink (UL) control region of an UL control channel. The UL control region of the UL control channel identified via the TA and the receive beam.

公开(公告)号：US09531573B2

公开(公告)日：2016-12-27

申请号：US13856797

申请日：2013-04-04

Applicant: Samsung Electronics Co., LTD

Inventor： Sridhar Rajagopal ,  Shadi Abu-Surra ,  Ankit Gupta ,  Sudhir Ramakrishna ,  Kaushik Josiam ,  Zhouyue Pi ,  Ying Li

IPC: H04K1/10 ,  H04L27/28 ,  H04L27/26 ,  H04J13/00 ,  H04B7/06 ,  H04L1/00

CPC classification number: H04L27/2607 ,  H04B7/0695 ,  H04J13/0062 ,  H04L1/0031 ,  H04L27/261

Abstract: To reduce the duration of a cyclic prefix used for a multiple input, multiple output (MIMO) communications channel, delay spread variations for different transmit/receive beam pair combination is estimated and used for fast beam switching and to support single user MIMO (SU-MIMO) even when the CP difference between two beams is large. Beam switching reference signals are employed to estimate delay spread exceeding current CP, and to support beam switching. CP covering sub-clusters within clusters for the MIMO channel are exploited to reduce the CP requirement and improve efficiency. Any one of a number of different CP durations may be selected for each different mobile station, using one of a finite set of subframe configurations for which the CP durations of different symbol locations within the subframe are predefined. Dynamically switching subframe configurations by the system accommodates high mobility.

Abstract translation: 为了减少用于多输入的循环前缀的持续时间，多输出（MIMO）通信信道，用于不同发射/接收波束对组合的延迟扩展变化被估计并用于快速波束切换并且支持单用户MIMO（SU- MIMO），即使两个波束之间的CP差异较大。 采用光束切换参考信号来估计超过当前CP的延迟扩展，并支持波束切换。 覆盖用于MIMO信道的群集内的子簇的CP被利用以减少CP需求并提高效率。 可以使用预定义子帧内不同符号位置的CP持续时间的子帧配置的有限集合之一来为每个不同移动台选择多个不同CP持续时间中的任何一个。 通过系统动态切换子帧配置可以实现高移动性。

公开(公告)号：US20160080115A1

公开(公告)日：2016-03-17

申请号：US14634186

申请日：2015-02-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kaushik Josiam ,  Rakesh Taori

IPC: H04L1/16 ,  H04W72/04 ,  H04W4/02 ,  H04L5/00

CPC classification number: H04W4/02 ,  H04L1/1614 ,  H04L1/1685 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0092 ,  H04L5/0094 ,  H04W72/042 ,  H04W74/04

Abstract: An AP receives, from one or more STAs, an uplink orthogonal frequency division multiple access based block acknowledgement response in an 802.11 based wireless network. The AP transmits the downlink allocation for the downlink frame to the plurality of mobile devices, wherein the order of the plurality of mobile devices in the downlink allocation indicates respective uplink resource assignments. The STA receives a downlink frame with an allocation comprising the listing of a plurality of mobile devices for which data is transmitted in the downlink frame. The STA identifies an uplink resource allocation as a function of a location of a first mobile device within the listing of the plurality of mobile devices. The STA then transmits an acknowledgment on the uplink resource allocation corresponding to the location of a first mobile device within the listing of the plurality of mobile devices.

Abstract translation: AP在基于802.11的无线网络中从一个或多个STA接收基于上行链路正交频分多址的块确认响应。 AP将下行链路帧的下行链路分配发送到多个移动设备，其中下行链路分配中的多个移动设备的顺序指示相应的上行链路资源分配。 STA接收下行链路帧，其中包括在下行链路帧中发送数据的多个移动设备的列表的分配。 STA根据多个移动设备的列表内的第一移动设备的位置来识别上行链路资源分配。 然后，STA在与多个移动设备的列表内的第一移动设备的位置相对应的上行链路资源分配上发送确认。

公开(公告)号：US09137698B2

公开(公告)日：2015-09-15

申请号：US13772047

申请日：2013-02-20

Applicant: Samsung Electronics Co., LTD

Inventor： Ying Li ,  Zhouyue Pi ,  Shadi Abu-Surra ,  Sridhar Rajagopal ,  Kaushik Josiam

IPC: H04L12/801 ,  H04L12/26 ,  H04W52/02 ,  H04W52/24 ,  H04W52/50 ,  H04W24/10 ,  H04W72/04 ,  H04B7/06

CPC classification number: H04W24/10 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0689 ,  H04B7/0862 ,  H04W72/046

Abstract: Methods and apparatuses manage beam selection. A method for a mobile station (MS) includes identifying beamforming constraints of the MS. The method also includes performing measurement on a channel between a base station (BS) and the MS on at least one transmit (TX) beam and at least one receive (RX) beam. Additionally, the method includes sending beamforming feedback information based on the identified constraints of the MS and the channel measurement. A method for a base station (BS) includes receiving beamforming feedback information comprising at least one of radio frequency beamforming constraints of a mobile station or channel measurement information on a channel between the BS and the MS. Additionally, the method includes sending, to the MS, control information comprising an indication of at least one of MS RX beams or BS TX beams to be used in downlink communication with the MS based on the received beamforming feedback information.

Abstract translation: 方法和设备管理波束选择。 移动站（MS）的方法包括识别MS的波束成形约束。 该方法还包括在至少一个发射（TX）波束和至少一个接收（RX）波束上的基站（BS）和MS之间的信道上执行测量。 另外，该方法包括基于所识别的MS约束和信道测量发送波束成形反馈信息。 一种用于基站（BS）的方法包括：接收波束形成反馈信息，该反馈信息包括移动站的射频波束成形约束中的至少一个或在BS与MS之间的信道上的信道测量信息。 另外，该方法包括：向MS发送控制信息，该控制信息包括基于所接收的波束成形反馈信息，MS与MS之间的MS RX波束或BS TX波束中的至少一个的指示。

公开(公告)号：US09094977B2

公开(公告)日：2015-07-28

申请号：US13660697

申请日：2012-10-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ying Li ,  Zhouyue Pi ,  Kaushik Josiam

IPC: H04W72/04 ,  H04W24/10 ,  H04W72/08

CPC classification number: H04W72/046 ,  H04B7/0617 ,  H04B7/0695 ,  H04W16/28 ,  H04W24/10 ,  H04W72/08

Abstract: A base station and mobile station are configured to perform control beam association. A method at the base station includes transmitting at least one first control beam including reference signals on which the mobile station can perform a measurement. The method also includes receiving a first measurement report from the mobile station of the at least one first control beam. The method further includes, based on the first measurement report, selecting at least one of the at least one first control beam for at least one control channel for the mobile station to associate with. The method still further includes transmitting control information in the at least one control channel to the mobile station using the at least one selected control beam, the control information comprising at least one resource allocation indication for the mobile station. The at least one selected control beam is associated to the mobile station.

Abstract translation: 基站和移动台被配置为执行控制波束关联。 在基站处的方法包括发送包括参考信号的至少一个第一控制波束，移动台可以在其上执行测量。 该方法还包括从移动台接收至少一个第一控制波束的第一测量报告。 所述方法还包括：基于所述第一测量报告，为所述移动台关联的至少一个控制信道选择所述至少一个第一控制波束中的至少一个。 所述方法还包括使用所述至少一个所选择的控制波束将所述至少一个控制信道中的控制信息发送到所述移动站，所述控制信息包括所述移动站的至少一个资源分配指示。 至少一个所选择的控制波束与移动台相关联。

公开(公告)号：US09077415B2

公开(公告)日：2015-07-07

申请号：US13678795

申请日：2012-11-16

Applicant: Samsung Electronics Co., Ltd

Inventor： Kaushik Josiam ,  Shadi Abu-Surra ,  Ying Li ,  Sridhar Rajagopal ,  Zhouyue Pi

IPC: H04B7/02 ,  H04L27/00 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/0697 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0224

Abstract: A base station is capable of communicating with a plurality of subscriber stations using a beamforming scheme that varies beams over different time instances. The base station includes a plurality of antenna arrays configured to transmit N spatial beams and carry a reference symbols corresponding to specific spatial beams. The base station also includes NRF number of radio frequency (RF) processing chains coupled to respective ones of the plurality of antenna arrays, wherein N>>NRF. The subscriber station includes MRF processing receive paths configured to receive M number of beams from the base station.

Abstract translation: 基站能够使用在不同时间实例上改变波束的波束成形方案与多个用户台进行通信。 基站包括多个天线阵列，其被配置为发送N个空间波束并携带对应于特定空间波束的参考符号。 基站还包括耦合到多个天线阵列中的相应天线阵列的NRF数量的射频（RF）处理链，其中N >> NRF。 用户站包括被配置为从基站接收M个波束的MRF处理接收路径。

公开(公告)号：US09497047B2

公开(公告)日：2016-11-15

申请号：US14320018

申请日：2014-06-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kaushik Josiam ,  Rakesh Taori

IPC: H04L25/02 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04L25/0224 ,  H04B7/0617 ,  H04L5/0051

Abstract: A method includes configuring a first sounding channel to be an uplink sounding slot. The uplink sounding slot has at least one OFDM symbol in an uplink sub-frame in order to carry UL-SRSs corresponding to at least one transmit beam of a first set of transmit beams in a first sounding channel set of sub-bands. The first sounding channel set of sub-bands includes sub-bands that cover a first data bandwidth. The method includes transmitting, to an MS, a first UL sounding configuration message that sets a sounding sub-band bitmap value to a maximum specifiable value and indicates UL-SRS placement in the first sounding channel set of sub-bands. The method includes, receiving through the first sounding channel set of sub-bands from the MS, the UL-SRSs corresponding to at least the one transmit beam of the first set of transmit beams for channel estimation over the first data bandwidth.

Abstract translation: 一种方法包括将第一探测通道配置为上行链路探测槽。 上行链路探测时隙在上行链路子帧中具有至少一个OFDM符号，以便携带对应于第一发声波束子集中的第一组发射波束的至少一个发射波束的UL-SRS。 子波段的第一个探测通道组包括覆盖第一数据带宽的子带。 该方法包括向MS发送将发声的子带位图值设置为最大可指定值的第一UL发声配置消息，并且指示在第一发声通道子集中的UL-SRS放置。 该方法包括：通过来自MS的子波段的第一探测信道接收与第一组发射波束的至少一个发射波束相对应的UL-SRS，用于在第一数据带宽上进行信道估计。

公开(公告)号：US20150009951A1

公开(公告)日：2015-01-08

申请号：US14320018

申请日：2014-06-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kaushik Josiam ,  Rakesh Taori

IPC: H04L25/02 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04L25/0224 ,  H04B7/0617 ,  H04L5/0051

Abstract: A method includes configuring a first sounding channel to be an uplink sounding slot. The uplink sounding slot has at least one OFDM symbol in an uplink sub-frame in order to carry UL-SRSs corresponding to at least one transmit beam of a first set of transmit beams in a first sounding channel set of sub-bands. The first sounding channel set of sub-bands includes sub-bands that cover a first data bandwidth. The method includes transmitting, to an MS, a first UL sounding configuration message that sets a sounding sub-band bitmap value to a maximum specifiable value and indicates UL-SRS placement in the first sounding channel set of sub-bands. The method includes, receiving through the first sounding channel set of sub-bands from the MS, the UL-SRSs corresponding to at least the one transmit beam of the first set of transmit beams for channel estimation over the first data bandwidth.

Abstract translation: 一种方法包括将第一探测通道配置为上行链路探测槽。 上行链路探测时隙在上行链路子帧中具有至少一个OFDM符号，以便携带对应于第一发声波束子集中的第一组发射波束的至少一个发射波束的UL-SRS。 子波段的第一个探测通道组包括覆盖第一数据带宽的子带。 该方法包括向MS发送将发声的子带位图值设置为最大可指定值的第一UL发声配置消息，并且指示在第一发声通道子集中的UL-SRS放置。 该方法包括：通过来自MS的子波段的第一探测信道接收与第一组发射波束的至少一个发射波束相对应的UL-SRS，用于在第一数据带宽上进行信道估计。