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公开(公告)号：US20160100388A1
公开(公告)日：2016-04-07
申请号：US14970985
申请日：2015-12-16
CPC分类号： H04W72/042 , H04B7/0413 , H04B7/0456 , H04B7/0686 , H04B7/0691 , H04L1/0068 , H04L1/0069 , H04L5/001 , H04L5/0023 , H04L5/0037 , H04L5/0051 , H04L5/0053 , H04L27/2627 , H04W72/0406 , H04W72/044 , H04W72/0453 , H04W88/02
摘要： Time-frequency resources in a single PRB pair are used for both frequency-localized transmissions as well as distributed transmissions. A first control message is transmitted to a first user equipment (UE) using a first PRB pair, using first subsets of resource elements that are aggregated in a frequency-localized manner and that are transmitted using a single antenna port. A second control message to a second UE is simultaneously transmitted), also using the first PRB pair, using second subsets of resources that are aggregated in a frequency-distributed manner across the first PRB pair and one or more additional PRB pairs and that are transmitted using at least two antenna ports, including the single antenna port used to transmit the symbols in the first non-overlapping subsets of resource elements.
摘要翻译： 单个PRB对中的时频资源用于频率本地化传输以及分布式传输。 使用第一PRB对将第一控制消息发送到第一用户设备（UE），使用以频率定位的方式聚合并且使用单个天线端口发送的资源元素的第一子集。 同时使用第一PRB对使用第二子集资源的第二控制消息同时发送到第二个UE，该第二子集以频率分布的方式跨越第一PRB对和一个或多个附加PRB对并且被发送 使用至少两个天线端口，包括用于在资源元素的第一非重叠子集中发送符号的单个天线端口。
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公开(公告)号：US20150382329A1
公开(公告)日：2015-12-31
申请号：US14844378
申请日：2015-09-03
CPC分类号： H04W72/042 , H04B7/0413 , H04B7/0456 , H04B7/0686 , H04B7/0691 , H04L1/0068 , H04L1/0069 , H04L5/001 , H04L5/0023 , H04L5/0037 , H04L5/0051 , H04L5/0053 , H04L27/2627 , H04W72/0406 , H04W72/044 , H04W72/0453 , H04W88/02
摘要： The set of resource aggregation levels available for forming an enhanced control channel message may vary from one subframe to another, based on the level of puncturing in the transmitted subframes. An example method begins with determining members of a set of aggregation levels usable to aggregate the non-overlapping subsets of resource elements for transmitting downlink control information. This determining is based on a puncturing level to be used for the transmission of the downlink control information. Downlink control information for the given subframe is mapped to one or more non-overlapping subsets of resource elements in the at least one block of time-frequency resources, according to an aggregation level selected from the determined set, and then transmitted, in the one or more non-overlapping subsets. This method may be repeated for each of several subframes, where the puncturing may differ from one subframe to another.
摘要翻译： 可用于形成增强的控制信道消息的资源聚合级别集合可以基于所发送的子帧中的删截的级别从一个子帧到另一个子帧变化。 示例性方法开始于确定可用于聚合用于发送下行链路控制信息的资源元素的非重叠子集的聚合级别的成员。 该确定基于要用于下行链路控制信息的发送的删截等级。 根据从所确定的集合中选出的聚合等级，将给定子帧的下行链路控制信息映射到时间 - 频率资源的至少一个块中的资源元素的一个或多个非重叠子集，然后在一个 或更多不重叠的子集。 对于几个子帧中的每一个可以重复该方法，其中删截可能不同于一个子帧到另一个子帧。
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33.发明申请公开(公告)号：US20140133369A1
公开(公告)日：2014-05-15
申请号：US13949958
申请日：2013-07-24
发明人： Jung-Fu Cheng , Mattias Frenne , Johan Furuskog , Daniel Larsson
IPC分类号： H04L5/16
CPC分类号： H04L5/16 , H04L5/001 , H04L5/0073
摘要： According to the network-side teachings herein, transmission adaptations taken with respect to a secondary serving cell provide improved operation in the context of serving a half-duplex wireless device having a carrier aggregation configuration involving primary and secondary cells with different Time Division Duplex (TDD) uplink/downlink configurations. Transmission adaptations are taken with respect to a normal downlink subframe in a secondary cell that is time-wise overlapped by a special subframe in the primary cell. Similarly, improved operations are obtained on the device-side according to reception adaptations taken with respect to normal downlink subframes in a secondary cell that are overlapped by special subframes in the primary cell. Non-limiting improvements include better channel estimation and link adaptation, improved scheduling, and revised timings for the transmission and reception of user or control data targeting the device.
摘要翻译： 根据本文的网络方面的教导，针对辅助服务小区采取的传输调整在服务具有涉及具有不同时分双工（TDD）的主小区和辅助小区的载波聚合配置的半双工无线设备的上下文中提供改进的操作 ）上行/下行配置。 对于次级小区中正常的下行链路子帧进行传输调整，次要小区中的正常下行链路子帧在时间上与主小区中的特殊子帧重叠。 类似地，根据与主小区中的特殊子帧重叠的辅助小区中的正常下行链路子帧的接收适应性，在设备侧获得改进的操作。 非限制性改进包括更好的信道估计和链路自适应，改进的调度以及针对设备的用户或控制数据的发送和接收的修改的定时。
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34.发明申请公开(公告)号：US20140092822A1
公开(公告)日：2014-04-03
申请号：US13832948
申请日：2013-03-15
IPC分类号： H04W72/04
CPC分类号： H04W72/042 , H04L5/0007 , H04L5/0037 , H04L5/0039 , H04L5/0041 , H04L5/0053
摘要： Methods of operating a network node are provided. Various embodiments may provide methods of processing enhanced physical downlink control channel (ePDCCH) information by a network node of a radio telecommunications system. The methods may include differentiating between sets of physical resource block (PRB) pairs in an ePDCCH control region when defining blind decoding candidates. Moreover, the methods may include scheduling a resource for a User Equipment (UE) in response to differentiating between the sets of PRB pairs. Related network nodes and UEs are also described.
摘要翻译： 提供操作网络节点的方法。 各种实施例可以提供由无线电信系统的网络节点处理增强的物理下行链路控制信道（ePDCCH）信息的方法。 所述方法可以包括在定义盲解码候选时区分ePDCCH控制区域中的物理资源块（PRB）对组。 此外，所述方法可以包括响应于PRB对组之间的差异来调度用户设备（UE）的资源。 还描述了相关网络节点和UE。
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公开(公告)号：US10945272B2
公开(公告)日：2021-03-09
申请号：US15961464
申请日：2018-04-24
发明人： Mattias Frenne , Qiang Zhang , Henrik Sahlin , Stefan Parkvall , Håkan Andersson , Johan Furuskog
摘要： A method performed by a wireless device (121, 122) for determining Channel State Information, CSI, estimates to be transmitted in a CSI report for the wireless device (121, 122) to a network node (110) in a radio communications network (100) is provided. The wireless device (121, 122) receives a message comprising an indication to use CSI estimates corresponding to a determined period of time. In response to said message, the wireless device (121, 122) determines CSI estimates to be used in the CSI report to the network node (110) according to the received indication. A wireless device (121, 122) is also described.
A network node (110) and method therein for controlling CSI estimates transmitted by one or more wireless devices (121, 122) in CSI reports to the network node (110) in a radio communications network (100) are also provided.-
公开(公告)号：US10271309B2
公开(公告)日：2019-04-23
申请号：US15900328
申请日：2018-02-20
发明人： Henrik Sahlin , Mattias Frenne , Johan Furuskog , Stefan Parkvall , Qiang Zhang
摘要： Systems and methods are disclosed for transmission and reception of an uplink grant during a gap created in radio resources assigned by a previous multiple Transmit Time Interval (multi-TTI) uplink grant in a system operating according to a Time Division Duplexing (TDD) scheme. In one embodiment, a method of operation of a radio network node in a cellular communications network is provided. The method includes transmitting a first uplink grant that assigns radio resources for a multi-TTI uplink transmission, and transmitting a second uplink grant during a gap in the radio resources assigned by the first uplink grant. In one embodiment, by utilizing the gap to transmit the second uplink grant, uplink radio resources assigned for uplink transmission can be maximized, which is particularly beneficial in high uplink traffic conditions.
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公开(公告)号：US10129781B2
公开(公告)日：2018-11-13
申请号：US14907604
申请日：2015-10-06
摘要： Systems and methods for providing Channel State Information (CSI) feedback in a cellular communications network are disclosed. In some embodiments, a base station of a cellular communications network disables inter-subframe channel interpolation of CSI-RS estimates across subframes at the wireless device and receives one or more CSI reports from the wireless device that are generated by the wireless device with inter-subframe channel interpolation of CSI-RS estimates across subframes disabled in response to the base station disabling inter-subframe channel interpolation of CSI-RS estimates across subframes at the wireless device. In this manner, CSI feedback is improved particularly in embodiments in which the base station transmits a beamformed CSI-RS resource(s) and reuses the same CSI-RS resource(s) for different beams over time.
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38.发明申请公开(公告)号：US20180242336A1
公开(公告)日：2018-08-23
申请号：US15961464
申请日：2018-04-24
发明人： Mattias Frenne , Qiang Zhang , Henrik Sahlin , Stefan Parkvall , Håkan Andersson , Johan Furuskog
CPC分类号： H04W72/085 , H04L1/0026 , H04L1/0035 , H04L43/067 , H04W4/06 , H04W24/10 , H04W72/042 , H04W72/046 , H04W76/27
摘要： A method performed by a wireless device (121, 122) for determining Channel State Information, CSI, estimates to be transmitted in a CSI report for the wireless device (121, 122) to a network node (110) in a radio communications network (100) is provided. The wireless device (121, 122) receives a message comprising an indication to use CSI estimates corresponding to a determined period of time. In response to said message, the wireless device (121, 122) determines CSI estimates to be used in the CSI report to the network node (110) according to the received indication. A wireless device (121, 122) is also described.A network node (110) and method therein for controlling CSI estimates transmitted by one or more wireless devices (121, 122) in CSI reports to the network node (110) in a radio communications network (100) are also provided.
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公开(公告)号：US09780924B2
公开(公告)日：2017-10-03
申请号：US14443683
申请日：2015-04-10
CPC分类号： H04L1/1819 , H04L1/1671 , H04W72/042
摘要： Techniques according to which HARQ feedback transmitted from a wireless device to a base station includes not only the ACK/NACK status for the corresponding hybrid automatic-repeat-request, HARQ, process, but also certain information that was provided by the network in the last received downlink assignment. An example method, as implemented in a wireless device operating in a wireless communication network, comprises receiving (610) from the wireless communication network, in a first transmission-time interval, a resource-assignment message indicating resources allocated for a data transmission to the wireless device. The example method further comprises transmitting (620) to the wireless communication network, in a second transmission-time interval, feedback information that includes an indication of whether the data transmission was correctly received by the wireless device and further includes one or more mirrored information fields copied from the resource-assignment message.
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公开(公告)号：US09692569B2
公开(公告)日：2017-06-27
申请号：US14116886
申请日：2013-09-19
CPC分类号： H04L5/0048 , H04L1/0038 , H04L5/0007
摘要： Among other advantageous aspects, the teachings herein provide network-side and device-side apparatuses and methods that preserve normal Resource Element (RE) aggregation levels for the transmission of Enhanced Physical Downlink Control Channels (EPDCCHs) in “constrained” subframes, where “constrained” refers to any subframe having fewer REs available for EPDCCH usage within a base set of PRB pairs than are available in a “non-constrained” or “normal” subframe. Non-limiting examples of “constrained” subframes include special subframes in Time Division Duplex, TDD, operation, which comprise a downlink portion that is abbreviated to accommodate an included uplink portion, along with a guard portion between them. Multimedia Broadcast Single Frequency Network, MBSFN, subframes represent another example of a constrained subframe, where only the first two OFDM symbols within the subframe are available for EPDCCH transmissions.
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