公开(公告)号：EP2777172A4

公开(公告)日：2015-08-12

申请号：EP11875372

申请日：2011-11-11

Applicant: ERICSSON TELEFON AB L M

Inventor： ZHANG ZHAN ,  PETERSSON SVEN ,  QIAN YU ,  SONG XINGHUA

IPC: H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04W16/28

CPC classification number: H01Q3/26 ,  H01Q21/26 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0473 ,  H04B7/0482 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0695 ,  H04B7/0842 ,  H04B7/086 ,  H04B7/088 ,  H04W16/28

公开(公告)号：EP2727393A4

公开(公告)日：2015-07-08

申请号：EP11869088

申请日：2011-07-01

Applicant: ERICSSON TELEFON AB L M

Inventor： SONG XINGHUA ,  QIAN YU ,  WANG HAI

IPC: H04W24/08 ,  H04B7/04 ,  H04B7/06 ,  H04L1/00 ,  H04W72/08 ,  H04W76/04

CPC classification number: H04W72/085 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0671 ,  H04B7/0689 ,  H04L1/0015 ,  H04W76/046

Abstract: The present invention discloses a node for transmission mode switching for downlink transmission in a downlink channel (100), comprising: a configuring unit (110) adapted to configure an initial transmission mode for the downlink transmission as a default transmission mode; a deriving unit (120) adapted to derive channel quality metric (CQM) of the downlink channel; a first determining unit (130) adapted to determine a first predefined threshold on the basis of link level simulation of a first transmission mode and a second transmission mode; and a first switching unit (140) adapted to switch the transmission mode from the initial transmission mode to the first transmission mode or the second transmission mode on the basis of the CQM and the first predefined threshold. The present invention provides a simple, direct and efficient approach for transmission mode switching for downlink transmission in a downlink channel on the basis of available feedback from UE (or other kinds of terminals if appropriate) and/or link adaptation decisions from eNB (or other kinds of base stations if appropriate), provides high peak rate while maintaining cell coverage, and provides a proprietary solution without any impact on protocol/standard or UE implementation.

公开(公告)号：EP2534905A4

公开(公告)日：2015-05-06

申请号：EP10845432

申请日：2010-02-11

Applicant: ERICSSON TELEFON AB L M

Inventor： SONG XINGHUA ,  GAN JIANSONG ,  LIU YIN ,  QIAN YU ,  WANG JIANFENG

IPC: H04W72/00

CPC classification number: H04W88/04 ,  H04W72/04

公开(公告)号：EP2727257A4

公开(公告)日：2015-03-11

申请号：EP11869168

申请日：2011-07-01

Applicant: ERICSSON TELEFON AB L M

Inventor： SONG XINGHUA ,  XIAO LEI ,  ZHU HUAISONG

IPC: H04B7/06 ,  H04B7/08 ,  H04B17/00

CPC classification number: H04B7/01 ,  H04B7/0604 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0689 ,  H04B7/086 ,  H04B7/2643 ,  H04B17/10 ,  H04B17/11 ,  H04L5/14

公开(公告)号：EP2524559A4

公开(公告)日：2014-05-07

申请号：EP10843337

申请日：2010-06-24

Applicant: ERICSSON TELEFON AB L M

Inventor： HU YANG ,  ASTELY DAVID ,  HAMMARWALL DAVID ,  JÖNGREN GEORGE ,  SONG XINGHUA ,  WANG JIANFENG

IPC: H04B7/06 ,  H04L5/06

CPC classification number: H04B7/0452 ,  H04B7/0689 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048

公开(公告)号：EP3033902A4

公开(公告)日：2016-09-21

申请号：EP14836686

申请日：2014-08-15

Applicant: ERICSSON TELEFON AB L M

Inventor： SONG XINGHUA ,  LI SHAOHUA ,  GUO ZHIHENG ,  FAN RUI ,  LIU JINHUA

IPC: H04W24/10 ,  H04B7/26 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04B17/309 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0057 ,  H04W24/08 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/14

Abstract: Separate aperiodic channel state information (CSI) reports are handled for static subframe(s), in which the direction of signal transmission is fixed, and flexible subframe(s), in which the direction of signal transmission is variable. A method by a UE includes receiving a trigger for an aperiodic CSI report as part of an uplink (UL) grant from a radio node in a static downlink (DL) subframe, where the trigger indicates a CSI subframe set, out of at least two alternative CSI subframe sets. An aperiodic CSI measurement is performed for a CSI reference resource in the indicated CSI subframe set, and the result of the CSI measurement is reported to the radio node. One of the at least two alternative CSI subframe sets relates to the one or more static subframes, and another one of the at least two alternative CSI subframe sets relates to the one or more flexible subframes.

Abstract translation: 针对固定信号方向的静态子帧和信号传输方向可变的灵活子帧来处理非周期信道状态信息（CSI）报告。 UE的一种方法包括从静态下行链路（DL）子帧中的无线电节点接收非周期性CSI报告的触发，作为来自上行链路（UL）授权的一部分，其中触发指示CSI子帧组，在至少两个 替代CSI子帧组。 对所指示的CSI子帧集合中的CSI参考资源执行非周期CSI测量，并将CSI测量的结果报告给无线电节点。 所述至少两个备选CSI子帧集合中的一个与所述一个或多个静态子帧相关，并且所述至少两个备选CSI子帧集中的另一个涉及所述一个或多个灵活子帧。

公开(公告)号：EP2936866A4

公开(公告)日：2016-07-20

申请号：EP12890268

申请日：2012-12-18

Applicant: ERICSSON TELEFON AB L M

Inventor： ZHU HUAISONG ,  HU YANG ,  SONG XINGHUA

IPC: H04W16/28 ,  H04W24/02

CPC classification number: H04W16/28 ,  H04W24/02 ,  Y02D70/1242 ,  Y02D70/1262

Abstract: There is provided a base station (BS) (1000) and a method at the BS that is capable of enhancing network capacity with low transmission power in a radio network. The method comprises serving a cell with one or more first carriers. The method further comprises serving a hot-spot within the cell with one or more beam-formed second carriers, wherein the first and second carriers share a total transmission power for serving the cell. Beam-forming based hot-spot carriers can efficiently save transmission power and contribute to the total power utilization efficiency. The base station (1000) thus can meet the capacity enhancement requirement with low transmission power.

Abstract translation: 提供了一种能够在无线电网络中以低发射功率增强网络容量的基站（BS）（1000）和在BS处的方法。 该方法包括用一个或多个第一载体服务小区。 该方法还包括利用一个或多个波束形成的第二载波来服务小区内的热点，其中第一和第二载波共享用于服务小区的总发射功率。 基于光束形成的热点载体可以有效地节省传输功率并有助于总的功率利用效率。 因此，基站（1000）能够以低发射功率满足容量增强要求。

公开(公告)号：EP2904844A4

公开(公告)日：2016-06-29

申请号：EP12885964

申请日：2012-10-06

Applicant: ERICSSON TELEFON AB L M

Inventor： SONG XINGHUA ,  LI SHAOHUA

IPC: H04W36/16 ,  H04J11/00 ,  H04L5/00

CPC classification number: H04L5/005 ,  H04J11/0036 ,  H04J11/005 ,  H04J11/0053 ,  H04L5/0035 ,  H04L5/0053 ,  H04W72/042

Abstract: A method for a User Equipment (UE) to mitigate Cell-specific Reference Signal (CRS) interference (not only the other interference cells' CRS interference but also the serving cell's CRS interference) during ePDCCH/PDSCH demodulation is described. The method includes determining that the CRS having been configured is not serving cell's CRS. Further, interference originating from the serving cell's CRS is mitigated by referring to serving cell's CRS configuration.

Abstract translation: 根据本公开，提供了一种在ePDCCH / PDSCH解调期间UE减轻小区特定参考信号（CRS）干扰（不仅其他干扰小区的CRS干扰，而且服务小区的CRS干扰）的方法。 在一个非限制性实施例中，CRS干扰减轻方法可以包括以下步骤：确定已经配置的CRS不是服务小区的CRS; 并通过参考服务小区的CRS配置来减轻源自服务小区的CRS的干扰。 本公开还涉及用于实现上述CRS干扰减轻方法的UE。

公开(公告)号：EP2749096A4

公开(公告)日：2015-03-25

申请号：EP11874532

申请日：2011-10-27

Applicant: ERICSSON TELEFON AB L M

Inventor： HU YANG ,  LI SHAOHUA ,  SONG XINGHUA ,  ZHANG HAOCHUAN

IPC: H04W52/48

CPC classification number: H04L1/0035 ,  H04L1/1812 ,  H04L1/1887 ,  H04W52/48 ,  H04W72/1226

Abstract: The present invention discloses a network node (100) for multi-user scheduling involving retransmission. The network node comprises a receiver (110) adapted to receive channel quality indicator (CQI) report from a user equipment (UE), an adjuster (120) adapted to adjust signal to interference and noise ratio (SINR) derived from the CQI report to obtain SINR for retransmission, a combiner (130) adapted to combine SINR for initial transmission and SINR for one or a plurality of retransmission to obtain effective SINR, and a scheduler (140) adapted to perform multi-user scheduling on the basis of priority metric derived from the effective SINR. The present invention improves multi-user scheduling by taking HARQ combining gain into account. Instantaneous throughput as well as priority metric can be accurately measured, because SINR from not only channel quality (e.g. CQI) but also HARQ processing gain are both included.

公开(公告)号：EP2583514A4

公开(公告)日：2015-03-11

申请号：EP10853049

申请日：2010-06-24

Applicant: ERICSSON TELEFON AB L M

Inventor： HU YANG ,  SONG XINGHUA ,  WANG JIANFENG

IPC: H04W72/04 ,  H04B7/04 ,  H04J13/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

CPC classification number: H04W24/02 ,  H04J13/0003 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/18 ,  H04L5/0016 ,  H04L5/0051 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/0232 ,  H04L27/2613 ,  H04L27/262 ,  H04W48/08 ,  H04W72/042

Abstract: When more than two layers are multiplexed in one CDM group, length-4 OCC has to be used across both clusters in one subframe. This means that slot-by-slot channel estimation according to conventional schemes cannot be exploited and Doppler impact cannot be well overcome. By introducing virtual variables and virtual channel samples that are used in processing two time slots in a subframe independently and applying a frequency domain filter based on the virtual variables and then performing postprocessing based on virtual channel samples, slot-by-slot processing is possible to reduce latency and overcome Doppler impact. Code de-spreading of length-4 OCC is no longer processed in time domain, but in frequency domain with two adjacent CDM subgroups. As a result, the frequency domain filtering can start earlier whereby detection latency and processing time for OCC of length longer than 2 is reduced. It can also be used for the length-2 OCC.

Abstract translation: 当在一个CDM组中复用多于两个层时，必须在一个子帧中跨两个集群使用长度为4的OCC。 这意味着根据常规方案的逐时隙信道估计不能被利用，并且多普勒影响不能很好地克服。 通过引入用于独立处理子帧中的两个时隙的虚拟变量和虚拟信道样本，并且基于虚拟变量应用频域过滤器，然后基于虚拟信道样本执行后处理，逐个时隙处理是可能的 减少延迟并克服多普勒影响。 长度为4的OCC的码扩展不再在时域中处理，而在频域中具有两个相邻的CDM子组。 结果，可以更早地开始频域滤波，从而降低长度大于2的OCC的检测等待时间和处理时间。 它也可以用于长度为2的OCC。