公开(公告)号：US20150208363A1

公开(公告)日：2015-07-23

申请号：US14420471

申请日：2013-08-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jingxing Fu ,  Chengjun Sun ,  Hong Wang ,  Yingyang Li

IPC: H04W52/24 ,  H04L5/14

CPC classification number: H04W52/244 ,  H04L5/00 ,  H04L5/14 ,  H04L5/1469 ,  H04W16/10 ,  H04W92/20

Abstract: The application discloses a method for performing interference coordination between adjacent cells supporting dynamic TDD uplink and downlink configuration by a first evolved Node B (eNB). The method includes that: receiving, downlink interference degree information from a second eNB, wherein the downlink interference degree information is used for indicating a degree that uplink transmission of the second eNB is interfered by downlink transmission in a conflict subframe; and determining, according to the downlink interference degree information, whether to adjust downlink transmit power in the conflict subframe, if the downlink transmit power in the conflict subframe is to be adjusted, transmitting a CSI report configuration to UE of current cell, and configuring the UE of current cell to report a set of CSI respectively for the conflict subframe and a non-conflict subframe. By the solution of the present application, serious uplink and downlink interference between the adjacent cells can be avoided when the adjacent cells use different TDD uplink and downlink configurations.

Abstract translation: 该应用公开了一种用于在由第一演进节点B（eNB）支持动态TDD上行链路和下行链路配置的相邻小区之间执行干扰协调的方法。 该方法包括：从第二eNB接收下行干扰度信息，其中下行干扰度信息用于指示在冲突子帧中下行链路传输干扰第二eNB的上行传输的程度; 以及根据所述下行干扰度信息确定是否调整所述冲突子帧中的下行链路发射功率，如果要调整所述冲突子帧中的下行链路发射功率，则将CSI报告配置发送到当前小区的UE，并且配置 当前小区的UE分别针对冲突子帧和非冲突子帧报告一组CSI。 通过本应用的解决方案，当相邻小区使用不同的TDD上行链路和下行链路配置时，可以避免相邻小区之间的严重上行链路和下行链路干扰。

公开(公告)号：US20150049652A1

公开(公告)日：2015-02-19

申请号：US14295177

申请日：2014-06-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Shichang Zhang ,  Chengjun Sun

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

CPC classification number: H04L5/0057 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/1469

Abstract: The present disclosure provides a method for feeding back aperiodic CSI in a flexible TDD reconfiguration cell. The method includes a UE receiving information about signaling transmitted from an eNB to acquire locations of subframes corresponding to CH and CL, wherein CH and CL correspond to different subframe sets, respectively. The method also includes the UE detects UL DCI information carrying an aperiodic CSI request, on a CSI request subframe. The method also includes the UE feeds back aperiodic CSI specific to a corresponding CSI subframe set to the eNB, on a corresponding UL subframe. The embodiments of the present disclosure, according to another aspect, provide a terminal. According to the solutions disclosed in the present disclosure, the terminal acquires indication information of CSI subframe sets during feeding back the aperiodic CSI, by implicitly or explicitly defining the CSI subframe sets, so as to trigger aperiodic CSI feedback specific to CH and CL in a flexible TDD reconfiguration cell, thus improving the system performance.

Abstract translation: 本公开提供了一种用于在柔性TDD重新配置小区中反馈非周期性CSI的方法。 该方法包括：UE接收从eNB发送的信令的信息，以获取对应于CH和CL的子帧的位置，其中CH和CL分别对应于不同的子帧集。 该方法还包括UE在CSI请求子帧上检测携带非周期性CSI请求的UL DCI信息。 该方法还包括UE在相应的UL子帧上反馈对eNB设置的相应CSI子帧特定的非周期性CSI。 根据另一方面，本公开的实施例提供一种终端。 根据本公开中公开的解决方案，终端通过隐式地或明确地定义CSI子帧集合来反馈非周期性CSI，从而获取CSI子帧集合的指示信息，以触发特定于CH和CL的非周期CSI反馈 灵活的TDD重新配置单元，从而提高系统性能。

公开(公告)号：US20140369221A1

公开(公告)日：2014-12-18

申请号：US14369987

申请日：2012-12-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jingxing Fu ,  Chengjun Sun

IPC: H04L5/00 ,  H04L5/14 ,  H04W24/02

CPC classification number: H04L5/0032 ,  H04B7/2656 ,  H04J11/005 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0073 ,  H04L5/0094 ,  H04L5/0096 ,  H04L5/14 ,  H04L5/1469 ,  H04W24/02 ,  H04W24/10

Abstract: The present invention provides a method for changing TDD uplink and downlink configuration, including: UE measures interference from the adjacent cells′ UE and reports an interference condition to an eNB; the eNB changes current TDD uplink and downlink configuration according to the interference condition reported by the UE and the current uplink and downlink service requirements. By the present invention, the dynamically changed uplink and downlink service load requirements may be adapted when there is no serious interference between adjacent cells.

Abstract translation: 本发明提供了一种改变TDD上行链路和下行链路配置的方法，包括：UE测量来自相邻小区的UE的干扰并向eNB报告干扰状况; eNB根据UE报告的干扰条件和当前的上下行链路业务需求，改变当前的TDD上行和下行配置。 通过本发明，当相邻小区之间没有严重干扰时，可以适应动态改变的上行链路和下行链路业务负载要求。

公开(公告)号：US20130242910A1

公开(公告)日：2013-09-19

申请号：US13837971

申请日：2013-03-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jingxing FU ,  Chengjun Sun ,  Yingyang Li

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04L1/1861 ,  H04L1/1864 ,  H04L1/1887 ,  H04W72/1273

Abstract: A Physical Downlink Shared CHannel (PDSCH) transmission data method is provided. A User Equipment (UE) receives cross-carrier scheduling information in a PDCCH of a cell for scheduling. The cross-carrier scheduling information carries scheduling information indicating at least one PDSCH in at least one sub-frame of a cell being scheduled in cross-carrier scheduling. The UE processes data of PDSCH corresponding to the instruction according to received cross-carrier scheduling information. The UE sends a HARQ-ACK message to a base station according to the processed result. The peak rate of the UE is increased, and the requirement for higher throughput of the UE is satisfied.

Abstract translation: 提供了物理下行链路共享信道（PDSCH）传输数据方法。 用户设备（UE）在用于调度的小区的PDCCH中接收跨载波调度信息。 跨载波调度信息携带指示在跨载波调度中调度的小区的至少一个子帧中的至少一个PDSCH的调度信息。 UE根据接收到的跨载波调度信息处理对应于该指令的PDSCH的数据。 UE根据处理结果向基站发送HARQ-ACK消息。 UE的峰值速率增加，满足UE的更高吞吐量要求。

公开(公告)号：US11451981B2

公开(公告)日：2022-09-20

申请号：US16939286

申请日：2020-07-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Chengjun Sun ,  Xiaoqiang Li

IPC: H04W4/00 ,  H04W24/02 ,  H04L1/18 ,  H04L1/16 ,  H04W72/04 ,  H04J11/00 ,  H04L5/00 ,  H04L5/14

Abstract: An apparatus and a method for feeding back data receiving status, applied to a system, are provided. The method includes sequencing, by a User Equipment (UE), downlink subframes for transmitting data with respect to each Component Carrier (CC), generating receiving status feedback information for the first X downlink subframes with respect to each CC according to the result of the sequencing, where X≤M, wherein M is the number of downlink subframes on each CC, and transmitting the receiving status feedback information generated with respect to each CC to a base station. Accordingly, the UE will not misinterpret the receiving status for the downlink subframes due to inconsistencies with the base station between transmitting and receiving feedback. This affects the Hybrid Automatic Repeat Request (HARQ) transmission, saves the uplink overheads occupied by the receiving status feedback information, and increases the uplink coverage area.

公开(公告)号：US11050520B2

公开(公告)日：2021-06-29

申请号：US14377788

申请日：2013-03-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Chengjun Sun

IPC: H04L1/18 ,  H04L5/14 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00

Abstract: Methods, device, and User Equipment (UE) for processing a soft buffer, used in a Time Division Duplexing (TDD) system where uplink-downlink subframe distribution changes dynamically, are provided. A first method includes allocating, by a base station, transmission resources for a UE, and determining a parameter for processing a soft buffer, and performing rate matching for Physical Downlink Shared Channel (PDSCH); and sending, by the base station, data to the UE via Physical Downlink Control Channel (PDCCH) and PDSCH. The second method includes receiving, by a UE information of transmission resources allocated to the UE by a base station, and determining a parameter for processing a soft buffer; and receiving, by the UE, PDCCH and PDSCH sent by the base station according to the transmission resources and the parameter for processing the soft buffer.

公开(公告)号：US10728923B2

公开(公告)日：2020-07-28

申请号：US16511219

申请日：2019-07-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Chengjun Sun

IPC: H01J3/00 ,  H04W72/12 ,  H04W56/00 ,  H04L5/14 ,  H04W74/08

Abstract: The present disclosure is to provide a method of configuring timing of uplink (UL) transmission, comprising, receiving, by a user equipment (UE), configuration information on carrier aggregation (CA) of at least one frequency division duplex (FDD) cell and at least one time division duplex (TDD) cell; and adjusting, by the UE, starting timing of a UL subframe in a cell participating in the CA.

公开(公告)号：US10536331B2

公开(公告)日：2020-01-14

申请号：US15539899

申请日：2015-12-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yi Wang ,  Yingyang Li ,  Chengjun Sun

IPC: H04L12/24 ,  H04L5/00 ,  H04L5/14 ,  H04W16/32 ,  H04W72/04 ,  H04W56/00 ,  H04W88/02

Abstract: Embodiments of the present disclosure provide a method and an apparatus for configuring uplink and downlink carriers. In the embodiments of the present disclosure, the UE determines according to received uplink and downlink carrier configuration signaling, the pairing between the uplink and downlink carriers, and/or a timing reference downlink carrier for the uplink, and/or a pathloss reference cell for the uplink. Thus, the uplink and downlink carriers may be configured more flexibly. Further, through the configuration of the reference downlink carrier for the uplink timing and the uplink power control, the carrier aggregation performance and that on the unlicensed band may be supported more effectively, so as to improve the performance of the LTE system.

公开(公告)号：US10455594B2

公开(公告)日：2019-10-22

申请号：US16031317

申请日：2018-07-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yingyang Li ,  Chengjun Sun

IPC: H04L5/00 ,  H04W72/08 ,  H04W72/12 ,  H04L1/00 ,  H04L27/36 ,  H04W72/04 ,  H04B17/309 ,  H04B17/24

Abstract: Disclosed is a downlink transmission method that includes UE receiving configuration information sent form base station and accordingly adjusting CQI table and MCS table; UE measuring and reporting downlink channel quality indicator information to the base station; with the UE reporting the CQI information according to a backward compatible CQI table or a CQI table which supports 256 QAM modulation; and the UE receiving downlink scheduling information sent from the base station, receiving accordingly downlink data sent from the base station, with the UE processing the MCS information according to a backward compatible MCS table or a MCS table which supports 256 QAM modulation.

公开(公告)号：US10425968B2

公开(公告)日：2019-09-24

申请号：US15424663

申请日：2017-02-03

Applicant: Samsung Electronics Co., Ltd

Inventor： Chen Qian ,  Bin Yu ,  Qi Xiong ,  Chengjun Sun

IPC: H04W74/08 ,  H04W16/28 ,  H04B7/06

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). The present disclosure provides a differential beamforming based random access method, base station, and user equipment, wherein the differential beamforming based random access method comprises, by a base station: receiving a preamble sequence from a first terminal in a differential beamforming receiving mode; determining a base station beam direction angular deviation based on the preamble sequence; and adjusting a base station beam according to the base station beam direction angular deviation, and transmitting a random access response signal to the first terminal through the adjusted base station beam. In the present disclosure, by detecting a base station beam direction angular deviation in a differential beamforming receiving mode, a base station receiving beam can be adjusted to an optimal beam faster than a beam polling way of the prior art, thereby improving the performance of a random access procedure.