公开(公告)号：US20190150103A1

公开(公告)日：2019-05-16

申请号：US16246237

申请日：2019-01-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Aris Papasakellariou ,  Boon Loong Ng ,  Ying Li

IPC: H04W52/34 ,  H04W72/12 ,  H04W52/24 ,  H04W52/28 ,  H04W52/32 ,  H04W52/48 ,  H04W52/02 ,  H04W52/14 ,  H04L1/18 ,  H04L5/00 ,  H04W52/36 ,  H04W76/15 ,  H04W72/04 ,  H04W28/18 ,  H04W74/08

Abstract: A user equipment (UE) is configured by a Master enhanced NodeB (MeNB) for operation with dual connectivity to a Secondary eNB (SeNB) to transmit acknowledgement information when the UE is power limited and for a respective eNB to determine a UE power limitation. The UE, the MeNB, and the SeNB adjust operation according to a partitioning of a UE capability between the MeNB and the SeNB. The UE capability can be a transmission power, a soft buffer size, a reception or a transmission of a number of data transport block bits, or a number of decoding operations.

公开(公告)号：US10148369B2

公开(公告)日：2018-12-04

申请号：US14702247

申请日：2015-05-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Boon Loong Ng ,  Thomas David Novlan ,  Jianzhong Zhang ,  Ying Li

IPC: H04W72/04 ,  H04B17/318 ,  H04W52/14 ,  H04W8/00 ,  H04B17/18 ,  H04L5/00

Abstract: An eNodeB operated by a first operator is able to align an ON-OFF cycle operation for interference avoidance. The eNodeB receives, from another eNodeB operated by a second operator a physical broadcast channel (PBCH) and a physical downlink shared channel (PDSCH). A transmission coverage of the eNodeB partially overlaps with a transmission coverage of the other eNodeB. The PBCH carries a master information block (MIB), and the PDSCH carries a single system information block (SIB) identifying available unlicensed channel and including public land mobile network (PLMN) identities for networks operating using the unlicensed channel. The eNodeB uses the MIB and SIB1 to identify that the second eNodeB is operated by the second operator.

公开(公告)号：US09917676B2

公开(公告)日：2018-03-13

申请号：US14728666

申请日：2015-06-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Boon Loong Ng ,  Aris Papasakellariou ,  Thomas David Novlan ,  Ying Li

IPC: H04W4/00 ,  H04L1/18 ,  H04W84/04 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04L1/1812 ,  H04L1/1822 ,  H04L1/1861 ,  H04L1/1887 ,  H04L1/1893 ,  H04L1/1896 ,  H04W72/0453 ,  H04W72/082 ,  H04W84/042

Abstract: A user equipment (UE) is configured to perform a Hybrid Automatic Repeat Request (HARQ) in an un-licensed system. The UE includes at least one antenna configured to communicate with a base station. The UE also includes processing circuitry. The processing circuitry is configured to: send and receive data through the at least one antenna, in response to failing to decode a transport block transmitted by a first downlink carrier, transmit a negative acknowledgement message to the base station, and receive a re-transmission of the transport block from a second downlink carrier. The first downlink carrier comprises a unlicensed spectrum carrier and the second downlink carrier is different from the first downlink carrier.

公开(公告)号：US09775134B2

公开(公告)日：2017-09-26

申请号：US14483938

申请日：2014-09-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Aris Papasakellariou ,  Ying Li

IPC: H04W72/00 ,  H04L5/14 ,  H04W48/12 ,  H04L5/00

CPC classification number: H04W72/005 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0094 ,  H04L5/14 ,  H04W48/12

Abstract: Methods and apparatus are provided for a base station to transmit and for a UE to detect broadcast information when the UE operates in a Coverage Enhancement (CE) mode. The base station transmits repetitions of signaling conveying broadcast information in one or more subframes of each frame in a quadruple of frames. The transmission is intermittent in time. To detect the broadcast information, the UE blindly combines and decodes the repetitions of signaling assuming their existence. The base station informs the pattern for the intermittent transmissions of the signaling to UEs connected to the base station or to other base stations.

公开(公告)号：US09749935B2

公开(公告)日：2017-08-29

申请号：US13763411

申请日：2013-02-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ying Li ,  Zhouyue Pi ,  Sridhar Rajagopal ,  Pavan Nuggehalli ,  Shadi Abu-Surra ,  Sudhir Ramakrishna

IPC: H04W4/00 ,  H04W48/16 ,  H04W40/24 ,  H04W72/04 ,  H04W72/02 ,  H04W88/06 ,  H04W36/08 ,  H04W48/20 ,  H04W48/18 ,  H04W24/08 ,  H04W24/10 ,  H04W16/28

CPC classification number: H04W48/16 ,  H04W16/28 ,  H04W24/08 ,  H04W24/10 ,  H04W36/08 ,  H04W40/246 ,  H04W48/18 ,  H04W48/20 ,  H04W72/02 ,  H04W72/042 ,  H04W72/046 ,  H04W88/06

Abstract: A mobile station is configured to scan cells in a wireless network. The mobile station includes at least one antenna configured to transmit and receive wireless signals. The mobile station also includes a processor coupled to the at least one antenna, the processor configured to scan for one or more neighboring base station cells in a same frequency band as a serving base station cell using one or more receive beams. The one or more receive beams used for scanning are different than receive beams used for data communication with the serving base station cell.

公开(公告)号：US09699811B2

公开(公告)日：2017-07-04

申请号：US13833065

申请日：2013-03-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pavan Nuggehalli ,  Ying Li ,  Zhouyue Pi ,  Richard Stirling-Gallacher

IPC: H04W74/08 ,  H01Q1/24 ,  H01Q3/36 ,  H04B7/06 ,  H04W52/42

CPC classification number: H04W74/0833 ,  H01Q1/242 ,  H01Q1/246 ,  H01Q3/36 ,  H04B7/0617 ,  H04W52/42 ,  H04W74/08

Abstract: A base station enables a mobile station to employ a random access retransmission scheme in a wireless communication network. The mobile station includes a plurality of antennas configured to communicate with the base station. The mobile station also includes a processing circuitry coupled to the plurality of antennas. The processing circuitry is configured to perform a random access during a random access channel (RACH) burst. The processing circuitry also is configured to at least one of: transmit a random access signal with at least one of an initial transmit power level and an initial transmit beamwidth, and, in response to a random access attempt failure, change at least one of a transmit (Tx) power level and a Tx beamwidth and retransmit the random access signal.

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：US09635621B2

公开(公告)日：2017-04-25

申请号：US14595827

申请日：2015-01-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Aris Papasakellariou ,  Boon Loong Ng ,  Ying Li

IPC: H04W52/02 ,  H04W52/14 ,  H04W52/34 ,  H04W52/24 ,  H04W52/28 ,  H04W52/32 ,  H04W52/48 ,  H04W72/12 ,  H04W28/18 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04W52/34 ,  H04L1/1845 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0048 ,  H04W28/18 ,  H04W52/0212 ,  H04W52/146 ,  H04W52/16 ,  H04W52/244 ,  H04W52/281 ,  H04W52/325 ,  H04W52/367 ,  H04W52/48 ,  H04W72/0446 ,  H04W72/1263 ,  H04W72/1289 ,  H04W76/15 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods and apparatus are provided for a User Equipment (UE) configured by a Master enhanced NodeB (MeNB) for operation with dual connectivity to a Secondary eNB (SeNB) to transmit acknowledgement information when the UE is power limited and for a respective eNB to determine a UE power limitation. Methods and apparatus are also provided for the UE, the MeNB, and the SeNB to adjust operation according to a partitioning of a UE capability between the MeNB and the SeNB. The UE capability can be a transmission power, a soft buffer size, a reception or a transmission of a number of data transport block bits, or a number of decoding operations.

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：US09467261B2

公开(公告)日：2016-10-11

申请号：US14490452

申请日：2014-09-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Aris Papasakellariou ,  Jianzhong Zhang ,  Ying Li ,  Boon Loong Ng

IPC: H04L5/00

CPC classification number: H04L5/0044 ,  H04L5/0007 ,  H04L5/006

Abstract: Methods and apparatus are provided for a base station to transmit repetitions of broadcast information and for a UE to detect the broadcast information. In a first method, the base station maps each repetition in a respective quadruple of subframe symbols while accounting for a possible different number of available sub-carriers among quadruplets of subframe symbols. In a second method, the base station maps the repetitions successively in available sub-carriers. For intermittent transmissions of repetitions, the UE can use the mapping structure of the repeated broadcast information to determine an existence of a transmission.

Abstract translation: 为基站提供了发送广播信息重复的方法和装置，并且为UE检测广播信息。 在第一种方法中，基站将每个重复的子帧映射在子帧符号的四分之一中，同时考虑子帧符号的四元组之间的可能的不同数量的可用子载波。 在第二种方法中，基站在可用的子载波中连续映射重复。 对于重复的间歇传输，UE可以使用重复广播信息的映射结构来确定传输的存在。