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公开(公告)号：US11419034B2
公开(公告)日：2022-08-16
申请号：US14168944
申请日：2014-01-30
发明人： Bengt Lindoff , Erik Dahlman , Stefan Parkvall
摘要： Mechanisms for efficient transmission of large amount of download data from a base station to a user equipment in a multi-carrier that minimizes power consumption on the user equipment are described. When multiple component carriers are to be used to transmit the download data, the base station informs the user equipment. The base station transmits on the anchor carriers without wait after informing the user equipment and transmits on the non-anchor carriers after waiting a predetermined delay. The predetermined delay provides time to allow the user equipment to activate the receiving resources and be ready to receive the download data over the non-anchor carriers. In this manner, the user equipment can be in a power conservation mode and activate the receiver resources only when needed.
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公开(公告)号：US11025379B2
公开(公告)日：2021-06-01
申请号：US16283678
申请日：2019-02-22
发明人： Stefan Parkvall , Lei Wan , Erik Dahlman
摘要： The available transmission resources on a downlink-shared channel are divided into resource blocks, each resource block comprising a predetermined number of sub-carriers during a predetermined time period. The resource blocks are subdivided into localized resource blocks and distributed resource blocks. A user requiring sufficient resources can be allocated a plurality of said localized resource blocks. A user who would require only a small number of said localized resource blocks can instead be allocated subunits of a plurality of said distributed resource blocks.
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公开(公告)号：US10285150B2
公开(公告)日：2019-05-07
申请号：US14532781
申请日：2014-11-04
发明人： Robert Baldemair , David Astely , Erik Dahlman , Ylva Jading
摘要： The present invention relates to methods and arrangements in a base station and a user equipment for determining an uplink transmission timing correction for communication in a telecommunication system in which aggregation of component carriers is applied. The base station receives a signal from the user equipment on an uplink (UL) component carrier and measures the arrival time of the signal. A timing correction of the UL transmission timing based on the arrival time of the signal is determined. Thereupon the base station determines for which of the uplink component carriers used by the user equipment the timing correction is valid. The timing correction and the validity information is sent to the user equipment. The user equipment adjusts the UL transmission timing for each UL component carrier the timing correction is valid for.
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公开(公告)号：US10178680B2
公开(公告)日：2019-01-08
申请号：US14904119
申请日：2013-07-12
IPC分类号： H04W72/08 , H04W52/22 , H04B17/345 , H04L5/00 , H04W52/24 , H04W72/04 , H04W52/34 , H04W52/32 , H04W52/36
摘要： It is provided a method for assisting downlink interference estimation in a cellular network. The method is performed in a network node of the cellular network and comprises the steps of: estimating an average transmit power of the network node in a future time period, resulting in a scaling factor indicating the average transmit power of the network node in relation to a reference transmit power of the network node; transmitting, in a resource element allocated to interference estimation, a reference signal for downlink interference estimation with a transmission power which is based on the scaling factor; and refraining from transmitting in a resource element in at least one instance where another network node transmits a reference signal for downlink interference estimation. A corresponding network node, computer program and computer program product for assisting downlink interference estimation are also presented.
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公开(公告)号：US20160219526A1
公开(公告)日：2016-07-28
申请号：US15090734
申请日：2016-04-05
发明人： Eva Englund , Erik Dahlman , Anders Furuskär , Ylva Jading , Kristina Jersenius , Stefan Parkvall
CPC分类号： G06Q10/06 , H04W52/146 , H04W52/221 , H04W52/30 , H04W52/325 , H04W52/367
摘要： Transmit power control methods and apparatus are disclosed. In several embodiments, a mobile terminal is configured to effectively ignore “UP” transmit power control commands in the event that the mobile terminal is operating in a power-limited state. In an exemplary method for controlling transmit power at a mobile terminal, a plurality of transmit power control commands are received. An accumulated power control value is adjusted in response to each transmit power control command that directs a negative adjustment in transmit power. However, the accumulated power control value is adjusted in response to a transmit power control command that directs a positive adjustment in transmit power only if the mobile terminal is not in a power-limited state. Transmit power settings for each transmission are calculated based on the accumulated power control value and the one or more radio link parameters.
摘要翻译： 公开了发射功率控制方法和装置。 在几个实施例中，移动终端被配置为在移动终端在功率受限状态下操作的情况下有效地忽略“UP”发射功率控制命令。 在用于控制移动终端的发射功率的示例性方法中，接收多个发射功率控制命令。 响应于指示发送功率的负调整的每个发送功率控制命令来调整累积功率控制值。 然而，仅当移动终端不处于功率限制状态时，响应于仅在发送功率中指示正调整的发送功率控制命令来调整累积功率控制值。 基于累积的功率控制值和一个或多个无线电链路参数来计算每个传输的发射功率设置。
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6.发明授权Radio network controller, a serving base station, a user equipment and methods therein 有权无线网络控制器，服务基站，用户设备和方法公开(公告)号：US09398543B2
公开(公告)日：2016-07-19
申请号：US13881184
申请日：2012-12-17
发明人： Stephen Grant , Erik Dahlman , Andreas Höglund , Stefan Parkvall , Edgar Ramos , Yi-Pin Eric Wang
IPC分类号： H04W4/00 , H04W52/26 , H04W52/32 , H04W52/14 , H04W52/16 , H04W52/24 , H04W52/40 , H04W52/38
CPC分类号： H04W52/265 , H04W52/146 , H04W52/16 , H04W52/242 , H04W52/325 , H04W52/386 , H04W52/40
摘要： A radio network controller, RNC, 614, and a method therein, for enhancing reception quality of transmissions on an uplink control channel from a user equipment, UE, 613 to a serving base station, BS, 610. The RNC, the UE and the serving BS are comprised in a communication system 600. The method comprises, when conditions for boosting the uplink control channel are fulfilled, determining a boosting factor based on a ratio of path gains of a channel from the UE to the serving BS and of a channel from the UE to a non-serving BS 611, respectively, which non-serving BS is comprised in the communications system. The method further comprises transmitting the determined boosting factor to the UE, whereby the reception quality of transmission on the uplink control channel from the UE to the serving BS is enhanced by the UE boosting the control channel by means of the boosting factor.
摘要翻译： 一种无线电网络控制器，RNC 614及其方法，用于增强从用户设备UE 613到服务基站BS 610的上行链路控制信道上的传输的接收质量。RNC，UE和 服务BS包括在通信系统600中。该方法包括：当满足用于升级上行链路控制信道的条件时，基于从UE到服务BS的信道的路径增益的比率和信道的确定提升因子 分别从UE到非服务BS 611，其中非服务BS包括在通信系统中。 该方法还包括将确定的升压因子发送给UE，由此UE通过升压因子来提升控制信道的上行控制信道的从UE到服务BS的接收传输质量。
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公开(公告)号：US09391683B2
公开(公告)日：2016-07-12
申请号：US14580749
申请日：2014-12-23
发明人： Stefan Parkvall , Erik Dahlman , Lei Wan
CPC分类号： H04L5/0032 , H04B7/06 , H04L5/0007 , H04L5/0039 , H04L5/0041 , H04W72/04 , H04W72/042 , H04W72/087 , H04W72/1263
摘要： The available transmission resources on a downlink-shared channel are divided into resource blocks, each resource block comprising a predetermined number of sub-carriers during a predetermined time period. The resource blocks are subdivided into localized resource blocks and distributed resource blocks. A user requiring sufficient resources can be allocated a plurality of said localized resource blocks. A user who would require only a small number of said localized resource blocks can instead be allocated summits of a plurality of said distributed resource blocks.
摘要翻译： 将下行链路共享信道上的可用传输资源划分为资源块，每个资源块在预定时间段期间包括预定数量的子载波。 资源块被细分为局部资源块和分布式资源块。 可以分配多个所述本地化资源块的需要足够资源的用户。 仅需要少量所述本地化资源块的用户可以替代地分配多个所述分布式资源块的顶点。
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公开(公告)号：US09313751B2
公开(公告)日：2016-04-12
申请号：US14106094
申请日：2013-12-13
发明人： Eva Englund , Erik Dahlman , Anders Furuskär , Ylva Jading , Kristina Jersenius , Stefan Parkvall
CPC分类号： G06Q10/06 , H04W52/146 , H04W52/221 , H04W52/30 , H04W52/325 , H04W52/367
摘要： Transmit power control methods and apparatus are disclosed. In several embodiments, a mobile terminal is configured to effectively ignore “UP” transmit power control commands in the event that the mobile terminal is operating in a power-limited state. In an exemplary method for controlling transmit power at a mobile terminal, a plurality of transmit power control commands are received. An accumulated power control value is adjusted in response to each transmit power control command that directs a negative adjustment in transmit power. However, the accumulated power control value is adjusted in response to a transmit power control command that directs a positive adjustment in transmit power only if the mobile terminal is not in a power-limited state. Transmit power settings for each transmission are calculated based on the accumulated power control value and the one or more radio link parameters.
摘要翻译： 公开了发射功率控制方法和装置。 在几个实施例中，移动终端被配置为在移动终端在功率受限状态下操作的情况下有效地忽略“UP”发射功率控制命令。 在用于控制移动终端的发射功率的示例性方法中，接收多个发射功率控制命令。 响应于指示发送功率的负调整的每个发送功率控制命令来调整累积功率控制值。 然而，仅当移动终端不处于功率限制状态时，响应于仅在发送功率中指示正调整的发送功率控制命令来调整累积功率控制值。 基于累积的功率控制值和一个或多个无线电链路参数来计算每个传输的发射功率设置。
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9.发明授权Signaling data channel's configuration information to facilitate interference cancellation 有权信令数据通道的配置信息，以方便干扰消除公开(公告)号：US09237462B2
公开(公告)日：2016-01-12
申请号：US13824763
申请日：2013-02-27
发明人： Yi-Pin Eric Wang , Johan Bergman , Erik Dahlman , Stephen Grant , Stefan Parkvall , Edgar Ramos , Andres Reial
IPC分类号： H04J11/00 , H04W24/02 , H04W28/04 , H04W40/16 , H04W52/02 , H04B1/10 , H04B1/7097 , H04W72/08 , H04W28/02
CPC分类号： H04W24/02 , H04B1/10 , H04B1/7097 , H04J11/005 , H04W28/0236 , H04W40/16 , H04W52/0238 , H04W72/082 , H04W74/0841 , Y02D70/1262
摘要： In MU-MIMO scenarios, a target terminal can be exposed to data streams intended for other terminals. If the target terminal is capable of interference cancellation, then a network node, such as a base station or RNC, can provide the target terminal with interference information so that the target terminal can efficiently cancel interferences due to these interfering data streams. The interference information may include one or more interfering configuration, each of which characterizes a related interfering data stream. The interference information can also include the identity of the other terminal that is the intended recipient of the interfering stream. The network node may determine whether the target terminal can benefit from the interference information. If so, the network node can provide the interference information to the target terminal.
摘要翻译： 在MU-MIMO情况下，可以将目标终端暴露给用于其他终端的数据流。 如果目标终端能够进行干扰消除，则诸如基站或RNC的网络节点可以向目标终端提供干扰信息，使得目标终端能够有效地消除由于这些干扰数据流引起的干扰。 干扰信息可以包括一个或多个干扰配置，每个干扰配置表征相关的干扰数据流。 干扰信息还可以包括作为干扰流的预期接收者的另一个终端的身份。 网络节点可以确定目标终端是否可以从干扰信息中受益。 如果是，则网络节点可以向目标终端提供干扰信息。
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10.发明授权Mapping user data onto a time-frequency resource grid in a coordinated multi-point wireless communication system 有权将用户数据映射到协调的多点无线通信系统中的时间 - 频率资源网格上公开(公告)号：US09215053B2
公开(公告)日：2015-12-15
申请号：US14341941
申请日：2014-07-28
发明人： George Jöngren , Erik Dahlman
CPC分类号： H04L5/005 , H04B7/024 , H04L5/0005 , H04L5/0007 , H04L5/0032 , H04L5/0035 , H04L5/0053 , H04L5/0062 , H04L5/0096 , H04W72/0406 , H04W72/042
摘要： Methods and apparatus are disclosed for receiving user data in a wireless communication system that employs coordinated multi-point transmission of the user data from a first cell serving a wireless terminal and a second cell site neighboring the first cell site. In an exemplary system, the first cell site maps control signals and user data to a time-frequency resources according to a first mapping pattern, while the second cell site maps control data and traffic data to the time-frequency resources according to a second mapping pattern. An exemplary method comprises extracting user data, according to the first mapping pattern, from time-frequency resources of a first transmission for the wireless terminal transmitted from the first cell site; detecting a control element transmitted by one of the first and second cell sites, the control element indicating that user data associated with the control element is mapped to the time-frequency resources according to the second mapping pattern; and, responsive to said detecting, extracting user data according to the second mapping pattern from time-frequency resources of a second transmission for the wireless terminal transmitted from the second cell site.
摘要翻译： 公开了用于在无线通信系统中接收用户数据的方法和装置，该无线通信系统采用来自服务于无线终端的第一小区和与第一小区站点相邻的第二小区站点的用户数据的协调多点传输。 在示例性系统中，第一小区站点根据第一映射模式将控制信号和用户数据映射到时间 - 频率资源，而第二小区站点根据第二映射将控制数据和业务数据映射到时间 - 频率资源 模式。 一种示例性方法包括根据第一映射模式从第一小区站点发送的无线终端的第一传输的时间 - 频率资源提取用户数据; 检测由所述第一和第二小区站点之一发送的控制单元，所述控制单元指示与所述控制单元相关联的用户数据根据所述第二映射模式映射到所述时间 - 频率资源; 并且响应于所述检测，从所述第二小区站点发送的所述无线终端的第二传输的时间 - 频率资源中，根据所述第二映射模式提取用户数据。
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