公开(公告)号：US20190245595A1

公开(公告)日：2019-08-08

申请号：US16314661

申请日：2017-07-21

申请人： Sony Corporation

发明人： Jin XU ,  Cheng GAO ,  Siqi LIU ,  Chaonan HE ,  Jianfei CAO

IPC分类号： H04B7/0456 ,  H04W24/08

CPC分类号： H04B7/0456 ,  H04B7/04 ,  H04B7/0478 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/0647 ,  H04B7/065 ,  H04B7/0695 ,  H04W24/08

摘要： An electronic device at a base station end includes a processing circuit, the processing circuit being configured to: configure, in response to request signalling from a user equipment, an aperiodic beam-forming reference signal relevant to a first beam group for the user equipment, wherein the first beam group is determined by a base station according to channel state information periodically fed back by the user equipment; generate downlink control information, so as to indicate that the user equipment feeds back beam selection information according to the aperiodic beam-forming reference signal; determine, according to the beam selection information, one or a plurality of candidate beams and one or a plurality of corresponding second pre-coding codebooks; and determine an effective pre-coding codebook based on the one or multiple second pre-coding codebooks.

公开(公告)号：US20180343046A1

公开(公告)日：2018-11-29

申请号：US15778395

申请日：2016-11-23

申请人： LG ELECTRONICS INC.

发明人： Jonghyun PARK ,  Kijun KIM ,  Haewook PARK

IPC分类号： H04B7/06 ,  H04B7/0456 ,  H04W72/04 ,  H04W76/27

CPC分类号： H04B7/0626 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0647 ,  H04W72/0413 ,  H04W76/27

摘要： A method, by which a terminal transmits channel state information in a wireless communication system, comprises a step for performing one integrated CSI process, the step for performing one integrated CSI process comprising the steps of: receiving, from a base station, a first channel state information-reference signal related to a CSI-RS resource which is not pre-coded; reporting, to the base station, a first pre-coding matrix indicator derived on the basis of the first CSI-RS; receiving, from the base station, a second CSI-RS related to one CSI-RS resource of a beam-formed CSI-RS type; and reporting, to the base station, a second rank indicator/channel quality indicator/second PMI derived on the basis of the second CSI-RS.

公开(公告)号：US20180227029A1

公开(公告)日：2018-08-09

申请号：US15424313

申请日：2017-02-03

申请人： AT&T Intellectual Property I, L.P.

发明人： SaiRamesh Nammi ,  Xiaoyi Wang ,  Arunabha Ghosh

IPC分类号： H04B7/06 ,  H04W24/10 ,  H04B7/04

CPC分类号： H04B7/0626 ,  H04B7/0486 ,  H04B7/0647 ,  H04W24/10

摘要： Using channel state information (CSI), e.g., rank information, precoding matrix index, etc., that is reported periodically by a user equipment, a complexity of reporting of aperiodic CSI reporting can be reduced, by reducing a search space of a codebook used for the aperiodic CSI reporting, when the UE is configured with periodic and aperiodic CSI reporting. A periodic configuration of a mobile device is facilitated for transmissions of channel state data periodically, and, in response to sending a reference signal, first channel state data of the channel is received according to the periodic configuration. Based on the first channel state data, an aperiodic configuration of the mobile device can be facilitated for transmissions of the channel state data aperiodically according to aperiodic requests received by the mobile device. Then, second channel state data can be received by the network device according to the aperiodic configuration.

公开(公告)号：US20180076863A1

公开(公告)日：2018-03-15

申请号：US15822488

申请日：2017-11-27

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： David Hammarwall ,  George Jöngren

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04B7/04 ,  H04B7/10

CPC分类号： H04B7/0456 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0647 ,  H04B7/065 ,  H04B7/10 ,  H04L5/0044 ,  H04W72/0413

摘要： The teachings herein present a method and apparatus that implement and use a factorized precoder structure that is advantageous in terms of performance and efficiency. In particular, the teachings presented herein disclose an underlying precoder structure that allows for certain codebook reuse across different transmission scenarios, including for transmission from a single Uniform Linear Array (ULA) of transmit antennas and transmission from cross-polarized subgroups of such antennas. According to this structure, an overall precoder is constructed from a conversion precoder and a tuning precoder. The conversion precoder includes antenna-subgroup precoders of size NT/2, where NT represents the number of overall antenna ports considered. Correspondingly, the tuning precoder controls the offset of beam phases between the antenna-subgroup precoders, allowing the conversion precoder to be used with cross-polarized arrays of NT/2 antenna elements and with co-polarized arrays of NT antenna elements.

公开(公告)号：US09813939B1

公开(公告)日：2017-11-07

申请号：US14933626

申请日：2015-11-05

申请人： Sprint Spectrum L.P.

发明人： Sreekar Marupaduga ,  Ryan P. Dreiling

IPC分类号： H04W28/02 ,  H04B7/06

CPC分类号： H04W28/0268 ,  H04B7/0626 ,  H04B7/0647 ,  H04W28/0257

摘要： According to aspects of the disclosure, a method and system are provided for managing signaling in a wireless communication network. In some aspects, a base station serves a user equipment device (UE) over an air interface connection between the base station and the UE, and a bearer extends between the UE and a gateway. An example method may involve determining a quality of service (QoS) level of the bearer, and responsively selecting a channel state information (CSI) reporting rate based on the determined QoS level. Further, in some aspects, responsive to the selection of the CSI reporting rate, the method may involve causing the UE to periodically report CSI to the base station according to the selected CSI reporting rate. The method may be performed, in whole or in part, by the UE, the base station, and/or another entity in the wireless communication system.

公开(公告)号：US20170294998A1

公开(公告)日：2017-10-12

申请号：US15633511

申请日：2017-06-26

申请人： Intel Corporation

发明人： Kamran Etemad ,  Alexei Davydov

IPC分类号： H04L5/00 ,  H04B7/06 ,  H04W76/04 ,  H04B7/04 ,  H04W72/04 ,  H04L29/08

CPC分类号： H04W52/0235 ,  H04B1/56 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0473 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0647 ,  H04B7/065 ,  H04B15/00 ,  H04J3/00 ,  H04J3/1694 ,  H04J3/26 ,  H04L1/0026 ,  H04L1/1803 ,  H04L1/1822 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0096 ,  H04L5/14 ,  H04L29/02 ,  H04L69/22 ,  H04L69/324 ,  H04W4/02 ,  H04W4/029 ,  H04W4/06 ,  H04W4/16 ,  H04W4/70 ,  H04W4/90 ,  H04W24/02 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/0088 ,  H04W36/0094 ,  H04W36/04 ,  H04W36/16 ,  H04W36/18 ,  H04W36/30 ,  H04W36/32 ,  H04W48/20 ,  H04W52/0209 ,  H04W52/0212 ,  H04W52/0216 ,  H04W52/0225 ,  H04W52/0229 ,  H04W52/0251 ,  H04W56/00 ,  H04W56/001 ,  H04W72/005 ,  H04W72/02 ,  H04W72/042 ,  H04W72/044 ,  H04W72/048 ,  H04W72/12 ,  H04W72/1215 ,  H04W72/1226 ,  H04W76/14 ,  H04W76/28 ,  H04W88/06 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/40 ,  Y02D70/442 ,  Y02D70/444

摘要： Embodiments herein describe apparatuses, systems, and methods for signaling to support downlink coordinated multipoint (CoMP) communications with a user equipment (UE) in a wireless communication network. In embodiments, the UE may be configured with a plurality of channel state information (CSI) processes (e.g., via radio resource control (RRC) signaling) to use for providing CSI feedback to an evolved Node B (eNB) to support downlink CoMP communications. The UE may be configured with a plurality of sets of CSI processes. The UE may further receive a downlink control information (DCI) message from the eNB that indicates one of the configured sets of CSI processes on which the UE is to provide CSI feedback to the UE. The UE may generate the CSI feedback for the indicated set of CSI processes, and transmit the CSI feedback to the eNB in a CSI report.

公开(公告)号：US20170279513A1

公开(公告)日：2017-09-28

申请号：US15621990

申请日：2017-06-13

申请人： QUALCOMM Incorporated

发明人： Stefan Geirhofer ,  Peter Gaal ,  Wanshi Chen ,  Hao Xu

IPC分类号： H04B7/06 ,  H04B7/04

CPC分类号： H04B7/0626 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0647 ,  H04B7/0695

摘要： A method for channel state information (CSI) reporting by a wireless communication device is described. The method includes determining a codebook for a CSI report corresponding to four transmit antenna (4Tx) transmissions from a base station. The codebook has a dual codebook structure. The method also includes generating the CSI report using the codebook. The method further includes transmitting the CSI report to a base station.

公开(公告)号：US09668255B2

公开(公告)日：2017-05-30

申请号：US14995779

申请日：2016-01-14

申请人： FUJITSU LIMITED

发明人： Yi Zhang ,  Yi Wang ,  Jian Zhang ,  Hua Zhou ,  Jianming Wu

IPC分类号： H04B7/02 ,  H04W72/04 ,  H04W24/10 ,  H04L1/00 ,  H04B7/024 ,  H04B7/06 ,  H04L5/00

CPC分类号： H04W72/042 ,  H04B7/024 ,  H04B7/0647 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0057 ,  H04W24/10

摘要： Embodiments of the present invention provide a method and apparatus for triggering aperiodic feedback in coordinated multipoint transmission. The method includes: transmitting, by an eNB to UE, dynamic control information (DCI) and preconfigured feedback sets corresponding to the DCI, so that the UE aperiodically feeds back corresponding channel state information (CSI) according to the DCI and the feedback sets corresponding to the DCI; wherein the preconfigured feedback sets corresponding to the DCI are classified according to a triggered transmitting point or a CSI-RS of non-zero power, or are classified according to configured CSI, or are classified according to an interference type. With the method and apparatus of the embodiments of the present invention, a relatively good tradeoff between flexibility of aperiodic CSI feedback and signaling load in a CoMP transmission process or a joint transmission process of CoMP and CA may be achieved.

公开(公告)号：US09521544B2

公开(公告)日：2016-12-13

申请号：US14419114

申请日：2013-07-23

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： Muhammad Kazmi ,  Stefania Sesia ,  Mikael Zirén

IPC分类号： H04W8/24 ,  H04W72/04 ,  H04B7/04 ,  H04W28/18 ,  H04B7/06 ,  H04W88/06

CPC分类号： H04W8/24 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0619 ,  H04B7/0647 ,  H04B7/0689 ,  H04W28/18 ,  H04W72/048 ,  H04W88/06

摘要： A communication network is informed of the availability of MIMO mode of communication of user equipment by receiving a transmitted (305) indicator of the availability of MIMO mode of communication of a user equipment via a feedback channel between the user equipment and a node of a communication network.

摘要翻译： 通过在用户设备和通信节点之间的反馈信道接收用户设备的MIMO模式的可用性的发送（305）指示符，通知用户设备的MIMO模式的可用性的通信网络 网络。

公开(公告)号：US09515757B2

公开(公告)日：2016-12-06

申请号：US13719362

申请日：2012-12-19

申请人： Intel Corporation

发明人： Ali T. Koc ,  Marta Martinez Tarradell ,  Sangeetha L. Bangolae ,  Satish C. Jha ,  Rath Vannithamby ,  Jing Zhu

IPC分类号： H04W56/00 ,  H04J3/16 ,  H04B7/26 ,  H04W36/00 ,  H04W24/10 ,  H04W72/04 ,  H04W72/08 ,  H04J3/00 ,  H04B1/56 ,  H04W52/02 ,  H04W76/02 ,  H04W4/22 ,  H04W36/22 ,  H04B15/00 ,  H04W76/04 ,  H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04W24/02 ,  H04W72/12 ,  H04L29/02 ,  H04W4/00 ,  H04W4/06 ,  H04W48/20 ,  H04W16/14 ,  H04L29/06 ,  H04W4/02 ,  H04J3/26 ,  H04L27/26 ,  H04W72/10 ,  H04L5/00 ,  H04L5/14 ,  H04W36/32 ,  H04W4/16 ,  H04W36/04 ,  H04W36/16 ,  H04W72/00 ,  H04W36/30 ,  H04W36/18 ,  H04W88/06 ,  H04W72/02 ,  H04L1/00 ,  H04L1/18 ,  H04W88/02 ,  H04W88/08

CPC分类号： H04W52/0235 ,  H04B1/56 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0473 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0647 ,  H04B7/065 ,  H04B7/26 ,  H04B15/00 ,  H04J3/00 ,  H04J3/1694 ,  H04J3/26 ,  H04L1/0026 ,  H04L1/1803 ,  H04L1/1822 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0096 ,  H04L5/14 ,  H04L5/1469 ,  H04L27/2627 ,  H04L29/02 ,  H04L69/22 ,  H04L69/324 ,  H04W4/02 ,  H04W4/023 ,  H04W4/06 ,  H04W4/16 ,  H04W4/70 ,  H04W4/90 ,  H04W16/14 ,  H04W24/02 ,  H04W24/10 ,  H04W36/00 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/0088 ,  H04W36/04 ,  H04W36/16 ,  H04W36/18 ,  H04W36/22 ,  H04W36/30 ,  H04W36/32 ,  H04W48/20 ,  H04W52/0209 ,  H04W52/0212 ,  H04W52/0216 ,  H04W52/0225 ,  H04W52/0229 ,  H04W52/0251 ,  H04W56/00 ,  H04W56/001 ,  H04W72/005 ,  H04W72/02 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/044 ,  H04W72/048 ,  H04W72/082 ,  H04W72/085 ,  H04W72/10 ,  H04W72/12 ,  H04W72/1215 ,  H04W72/1226 ,  H04W76/14 ,  H04W76/18 ,  H04W76/27 ,  H04W76/28 ,  H04W88/02 ,  H04W88/06 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/40 ,  Y02D70/442 ,  Y02D70/444

摘要： Systems and methods are disclosed for communicating enhanced user equipment (UE) assistance information between nodes in wireless communication systems. The UE achieves power savings and latency requirements more effectively by communicating its preferences, constraints and/or requirements to an evolved Node B (eNodeB) in the form of UE assistance information. The UE assistance information may include, for example, an indication of a preferred set of discontinuous reception (DRX) settings, current data traffic conditions, expected data traffic conditions, power or performance preferences, and/or an indication of the UE's mobility between cells.

摘要翻译： 公开了用于在无线通信系统中的节点之间传送增强的用户设备（UE）辅助信息的系统和方法。 通过以UE辅助信息的形式向演进的节点B（eNodeB）传送其偏好，约束和/或要求，UE更有效地实现了功率节省和延迟要求。 UE辅助信息可以包括例如不连续接收（DRX）设置，当前数据业务状况，预期数据业务状况，功率或性能偏好的优选集合的指示，和/或UE在小区之间的移动性的指示 。