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1. 发明申请

US20190075430A1 D2D COMMUNICATIONS IN A CELLULAR NETWORK 审中-公开
公开(公告)号：US20190075430A1
公开(公告)日：2019-03-07
申请号：US15572042
申请日：2017-03-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： Bo LINCOLN , Hakan BJORKEGREN , Gabor FODOR , Fredrik GUNNARSSON , Jonas KRONANDER , Anders WALLEN
IPC分类号： H04W4/08 , H04W4/70 , H04W24/10
CPC分类号： H04W4/08 , H04W4/70 , H04W24/10 , H04W76/14 , Y02D70/00 , Y02D70/1262 , Y02D70/20 , Y02D70/21 , Y02D70/22
摘要： A method performed by a first transceiver device in D2D communication with second transceiver devices in a cellular network comprises transmitting a reference signal comprising an identity of the first transceiver device, and receiving feedback messages from the second transceiver devices, where a feedback message comprises the identity of the first and an identity of the second transceiver device, and channel characteristics of a radio channel between the first and the second transceiver device, where the channel characteristics are estimated by the second transceiver device. The method further comprises deciding, based on the feedback messages, whether a second transceiver device should be included in a set of intended devices to which the first transceiver device will perform a transmission of a communication signal. The method also comprises performing a transmission of the communication signal to the set of intended devices, where the transmission is adapted to the set of intended devices based on the feedback messages received from the intended devices.

2. 发明申请

US20200328833A1 NETWORK NODE, WIRELESS DEVICE AND METHODS THEREIN FOR PERFORMING AND HANDLING SUPERPOSED TRANSMISSIONS IN A WIRELESS COMMUNICATIONS NETWORK 审中-公开
公开(公告)号：US20200328833A1
公开(公告)日：2020-10-15
申请号：US16901822
申请日：2020-06-15
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Shiwei GAO , Mattias FRENNE , Robert Mark HARRISON , Bo LINCOLN , Siva MURUGANATHAN , Zhang ZHANG
IPC分类号： H04J11/00 , H04J7/00 , H04L5/00 , H04L27/26 , H04W52/34 , H04J13/00
摘要： Performing a superposed transmission in a wireless communications network. The superposed transmission includes a first signal intended for a first wireless device and a second signal intended for a second wireless device that are superposed and transmitted simultaneously by the network node on the same transmission resources. A first ratio and a second ratio of the total transmission power available for the superposed transmission are determined. The first ratio is to be used for the first signal and the second ratio is to be used for the second signal. Information indicating the first and/or second ratio is transmitted to at least the first wireless device and the superposed transmission to the first and second wireless device is performed simultaneously on the same transmission resources by transmitting the first signal using a transmission power according to the first ratio and the second signal using a transmission power according to the second ratio.

3. 发明申请

US20170346580A1 METHODS AND ARRANGEMENTS FOR CSI PREDICTION 审中-公开
公开(公告)号：US20170346580A1
公开(公告)日：2017-11-30
申请号：US15536645
申请日：2014-12-16
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Magnus ASTROM , Bo LINCOLN , Fredrik NORDSTROM
IPC分类号： H04B17/373 , H04L5/00 , H04L25/02 , H04W24/08 , H04W88/02
CPC分类号： H04B17/373 , H04L5/0057 , H04L5/006 , H04L25/0202 , H04L25/0204 , H04L25/021 , H04L25/0256 , H04W24/08 , H04W88/02
摘要： The present disclosure relates to methods and devices for Channel State Information, (CSI) prediction. More particularly the disclosure pertains to predicting CSI for a dynamic channel that is varying over time, e.g. because the receiver is moving. This object is obtained by a method performed in a first wireless node of predicting CSI of a dynamic wireless channel H between the first wireless node and a second wireless node. The method comprises deriving channel covariance estimates Ck(n), . . . , Ck(n−M) of the dynamic wireless channel H, estimating one or more channel properties of the dynamic wireless channel H, wherein one of the estimated channel properties defines a spectrum spread of the dynamic wireless channel H, and determining a covariance prediction filter, based on the estimated one or more channel properties. The method further comprises predicting one or more channel covariance estimates Ĉk(n+N|n) by applying the determined covariance prediction filter to the derived channel covariance estimates Ck(n), . . . , Ck(n−M) and calculating a predicted CSI using the predicted covariance estimates Ĉk(n+N|n). Hence, this disclosure proposes predicting CSI by predicting channel covariance using a methodology which implies deriving optimal covariance prediction filters.

4. 发明申请

US20170006501A1 Methods for Detecting Interferers for Handling Interference Mitigation 审中-公开
标题翻译：检测干扰者处理干扰减轻的方法
公开(公告)号：US20170006501A1
公开(公告)日：2017-01-05
申请号：US15113580
申请日：2015-01-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： Stefania SESIA , George JÖNGREN , Bo LINCOLN , Lars LINDBOM
IPC分类号： H04W28/18 , H04L1/00 , H04J11/00 , H04L5/00 , H04W72/04
CPC分类号： H04W28/18 , H04J11/0043 , H04J11/005 , H04L1/0048 , H04L5/0007 , H04W72/042 , H04W84/042 , H04W88/02
摘要： A method in a user equipment (605) is disclosed. The method comprises acquiring (704, 708) interference mitigation assistance parameters and granularity parameters, determining (712) one or more interfering cells (610B) for which a first strength measurement should be determined, determining (716) a first strength measurement for each of the determined one or more interfering cells, and ordering (720) the one or more interfering cells. The method further comprises identifying (724) from the ordered one or more interfering cells a first number of interfering cells having the strongest first strength measurements, determining (728) a second strength measurement for each of the identified first number of interfering cells, determining (732) one or more cells of the identified first number of interfering cells for which to perform cancellation of interference, and performing (736) cancellation of interference on the determined one or more cells of the identified first number of interfering cells.
摘要翻译：公开了一种用户设备（605）中的方法。该方法包括获取（704,708）干扰减轻辅助参数和粒度参数，确定（712）应该确定第一强度测量的一个或多个干扰小区（610B），确定（716）确定的一个或多个干扰小区，并排序（720）一个或多个干扰小区。该方法还包括从有序的一个或多个干扰小区识别具有最强的第一强度测量的第一数量的干扰小区（724），确定（728）所识别的每个干扰小区的第二强度测量，确定（728） 732）所识别的第一数目的干扰小区的一个或多个小区，用于执行干扰小区的消除，以及执行（736）消除所确定的所识别的第一数量的干扰小区的一个或多个小区的干扰。

5. 发明申请

US20180262288A1 NETWORK NODE, WIRELESS DEVICE AND METHODS THEREIN FOR PERFORMING AND HANDLING SUPERPOSED TRANSMISSIONS IN A WIRELESS COMMUNICATIONS NETWORK 审中-公开
公开(公告)号：US20180262288A1
公开(公告)日：2018-09-13
申请号：US15750416
申请日：2016-08-18
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Shiwei GAO , Mattias FRENNE , Robert Mark HARRISON , Bo LINCOLN , Siva MURUGANATHAN , Zhang ZHANG
IPC分类号： H04J11/00 , H04J7/00 , H04W52/34 , H04L5/00 , H04L27/26
CPC分类号： H04J11/004 , H04J7/00 , H04J13/0003 , H04L5/0014 , H04L5/0037 , H04L5/0044 , H04L5/0069 , H04L27/2601 , H04L27/2604 , H04W52/346 , H04W72/042
摘要： Performing a superposed transmission in a wireless communications network. The superposed transmission includes a first signal intended for a first wireless device and a second signal intended for a second wireless device that are superposed and transmitted simultaneously by the network node on the same transmission resources. A first ratio and a second ratio of the total transmission power available for the superposed transmission are determined. The first ratio is to be used for the first signal and the second ratio is to be used for the second signal. Information indicating the first and/or second ratio is transmitted to at least the first wireless device and the superposed transmission to the first and second wireless device is performed simultaneously on the same transmission resources by transmitting the first signal using a transmission power according to the first ratio and the second signal using a transmission power according to the second ratio.

6. 发明申请

US20180115381A1 METHODS AND ARRANGEMENTS FOR MITIGATING INTER-CLUSTER INTERFERENCE 审中-公开
公开(公告)号：US20180115381A1
公开(公告)日：2018-04-26
申请号：US15561969
申请日：2015-03-27
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Bo LINCOLN , George JONGREN
IPC分类号： H04J11/00 , H04B7/024 , H04B7/0452 , H04B7/0456 , H04B7/06 , H04L5/00 , H04L25/02 , H04W24/02
CPC分类号： H04J11/0053 , H04B7/024 , H04B7/0439 , H04B7/0452 , H04B7/0456 , H04B7/0617 , H04L5/0035 , H04L5/0051 , H04L25/021 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L25/03898 , H04W24/02 , H04W52/08 , H04W52/143 , H04W52/243 , H04W52/244
摘要： The present disclosure relates to methods and devices for mitigating inter-cluster interference in clusters where one or more network nodes are transmitting in coordination using several transceiver antennas. In particular the disclosure relates to improved precoder algorithms to be used for coordinated multipoint transmission applications. The disclosure also relates to corresponding computer programs. The disclosure proposes a method, performed in a coordination unit in a communication system, of mitigating inter-cluster interference, wherein the coordination unit is configured to coordinate transmissions in a cluster comprising one or more wireless devices and one or more network nodes, wherein the one or more network nodes are transmitting in coordination to the wireless devices in the cluster using several transceiver antennas. The method comprises receiving, for each transceiver antenna in each of the one or more network nodes, a signal comprising pre-defined sounding sequences transmitted by the one or more wireless devices of the cluster and sounding channel interference from one or more wireless devices outside the cluster. The method further comprises estimating, from the received signal, the sounding channel interference from the wireless devices outside the cluster. The method also comprises determining downlink precoder weights, for use when transmitting from the transceiver antennas of the cluster, using the estimated sounding channel interference from the one or more wireless devices outside the cluster.

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