-
公开(公告)号：US09379864B2
公开(公告)日：2016-06-28
申请号：US14236187
申请日：2011-08-05
CPC分类号： H04L5/0048 , H04L5/001 , H04L5/0039 , H04L5/0051 , H04L5/0073 , H04L5/0094 , H04L27/2613
摘要： A technique for generating a reference signal for use in a communication system in which for reference signal generation multiple base sequences are defined is presented. A method implementation of the technique comprises generating a first reference signal sequence from a first base sequence and a second reference signal sequence from a second base sequence. A reference signal is generated that comprises the first reference signal sequence and the second reference signal sequence. The first reference signal sequence occupies a first spectral fragment of the reference signal, and the second reference signal sequence occupies a second spectral fragment of the reference signal. The second spectral fragment and the first spectral fragment do not overlap.
摘要翻译： 本发明提供了一种用于生成参考信号产生多个基本序列的通信系统中使用的参考信号的技术。 该技术的方法实现包括从第一碱基序列产生第一参考信号序列和从第二碱基序列生成第二参考信号序列。 产生包括第一参考信号序列和第二参考信号序列的参考信号。 第一参考信号序列占据参考信号的第一频谱片段，第二参考信号序列占据参考信号的第二频谱片段。 第二个光谱片段和第一个光谱片段不重叠。
-
公开(公告)号：US20140192756A1
公开(公告)日：2014-07-10
申请号：US14236187
申请日：2011-08-05
IPC分类号： H04L5/00
CPC分类号： H04L5/0048 , H04L5/001 , H04L5/0039 , H04L5/0051 , H04L5/0073 , H04L5/0094 , H04L27/2613
摘要： A technique for generating a reference signal for use in a communication system in which for reference signal generation multiple base sequences are defined is presented. A method implementation of the technique comprises generating a first reference signal sequence from a first base sequence and a second reference signal sequence from a second base sequence. A reference signal is generated that comprises the first reference signal sequence and the second reference signal sequence. The first reference signal sequence occupies a first spectral fragment of the reference signal, and the second reference signal sequence occupies a second spectral fragment of the reference signal. The second spectral fragment and the first spectral fragment do not overlap.
摘要翻译： 本发明提供了一种用于生成参考信号产生多个基本序列的通信系统中使用的参考信号的技术。 该技术的方法实现包括从第一碱基序列产生第一参考信号序列和从第二碱基序列生成第二参考信号序列。 产生包括第一参考信号序列和第二参考信号序列的参考信号。 第一参考信号序列占据参考信号的第一频谱片段，第二参考信号序列占据参考信号的第二频谱片段。 第二个光谱片段和第一个光谱片段不重叠。
-
公开(公告)号：US20120275393A1
公开(公告)日：2012-11-01
申请号：US13263794
申请日：2011-09-21
IPC分类号： H04W72/04
CPC分类号： H04L5/0048 , H04L5/0094
摘要： Downlink control information, DCI, messages used for signaling downlink resource grants are employed for triggering sounding reference signal transmission in the uplink. An index of the uplink component carrier that should be used for the transmission is derived from SIB-2 linking between the downlink component carrier targeted by the downlink DCI message and one of the uplink component carriers configured for the mobile station, when the linking is available. In some cases the downlink component carrier targeted by the downlink DCI message is identified by a carrier identification field in the downlink DCI. Variants of the disclosed techniques involve a default uplink component carrier, which is used in the event that the SIB-2 based allocation is not possible or desired. The default uplink component carrier can be statically defined or semi-statically signaled by Radio Resource Control, RRC, signaling.
摘要翻译： 下行链路控制信息，DCI，用于信令下行链路资源许可的消息用于触发上行链路中的探测参考信号传输。 应该用于传输的上行链路分量载波的索引是从链路可用时从下行链路DCI消息所针对的下行链路分量载波与为移动台配置的上行链路分量载波之一之间的SIB-2链接导出的 。 在某些情况下，由下行链路DCI消息所针对的下行分量载波由下行链路DCI中的载波标识字段来识别。 所公开技术的变型涉及默认上行链路分量载波，其在基于SIB-2的分配不可能或不期望的情况下使用。 默认的上行链路分量载波可以由无线电资源控制（RRC）信令静态地定义或半静态信号发送。
-
4.发明申请Method and Arrangement for Adapting a Signal in a Wireless Communications Network 有权在无线通信网络中适应信号的方法和装置公开(公告)号：US20120099666A1
公开(公告)日：2012-04-26
申请号：US13379148
申请日：2009-06-29
IPC分类号： H04L27/28
CPC分类号： H04L27/2617 , H04B7/0623 , Y02D70/00 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/444
摘要： According to an aspect of the present invention, the power efficiency of a precoded OFDM signal is improved by a method in a network node 210, e.g. a mobile terminal, for adapting a signal for multi-antenna transmission. The network node 210 is comprised in a wireless communications network 200. In a first step 404, the network node 210 receives 404 at least a first parameter being related to the transmit power requirements of the network node 210. In some embodiments, the at least first parameter is a power control command. The network node 210 then receives, 408, a second parameter indicating a precoder W. In a further step 416, the network node 210 determines a modified precoder Ŵ, having the same dimensions as W, using the precoder W and the at least first parameter; Then, the network node 210 adapts, 418, the signal for multi-antenna transmission using the modified precoder Ŵ.
摘要翻译： 根据本发明的一个方面，通过网络节点210中的方法，例如，改进了预编码的OFDM信号的功率效率。 移动终端，用于适配用于多天线传输的信号。 网络节点210包括在无线通信网络200中。在第一步骤404中，网络节点210接收404至少与网络节点210的发射功率需求相关的第一参数。在一些实施例中，至少 第一个参数是功率控制命令。 网络节点210然后接收指示预编码器W的第二参数。在另一步骤416中，网络节点210使用预编码器W和至少第一参数来确定具有与W相同的维度的修改的预编码器parameter ; 然后，网络节点210使用修改的预编码器210适应418用于多天线传输的信号。
-
5.发明授权Method and arrangement for adapting a signal in a wireless communications network 有权用于在无线通信网络中调整信号的方法和装置公开(公告)号：US08761281B2
公开(公告)日：2014-06-24
申请号：US13379148
申请日：2009-06-29
CPC分类号： H04L27/2617 , H04B7/0623 , Y02D70/00 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/444
摘要： According to an aspect of the present invention, the power efficiency of a precoded OFDM signal is improved by a method in a network node, e.g. a mobile terminal, for adapting a signal for multi-antenna transmission. In a first step, the network node receives at least a first parameter being related to the transmit power requirements of the network node. The network node then receives, a second parameter indicating a precoder W. In a further step, the network node determines a modified precoder {tilde over (W)}, having the same dimensions as W, using the precoder W and the at least first parameter; then, the network node adapts, the signal for multi-antenna transmission using the modified precoder {tilde over (W)}.
摘要翻译： 根据本发明的一个方面，通过网络节点中的方法，例如，改进了预编码的OFDM信号的功率效率。 移动终端，用于适配用于多天线传输的信号。 在第一步骤中，网络节点接收与网络节点的发射功率需求相关的至少第一参数。 网络节点然后接收指示预编码器W的第二参数。在另一步骤中，网络节点使用预编码器W和至少第一个第一参数来确定具有与W相同的维度的经修改的预编码器（波形）（W）} 参数; 那么，网络节点使用修改后的预编码器（波形符号（W）}）来适应多天线传输的信号。
-
公开(公告)号：US08804686B2
公开(公告)日：2014-08-12
申请号：US13020853
申请日：2011-02-04
申请人： Stefano Sorrentino , George Jöngren
发明人： Stefano Sorrentino , George Jöngren
CPC分类号： H04L5/0048 , H04B7/0413 , H04B7/063 , H04B7/0669 , H04B7/0671 , H04L27/2613
摘要： Techniques are disclosed for signaling a pattern of cyclic shifts and orthogonal cover codes for use by a wireless device in multi-layer transmissions. In one example method, a signal includes B bits for identifying a reference signal is received, wherein each of several available reference signals is defined by a cyclic shift and an orthogonal cover code. The B bits are used to identify the cyclic shift and orthogonal cover code according to pre-determined tables that map each value of the B bits to a pattern of cyclic shift and orthogonal cover code combinations for a multi-layer transmission scheme. The patterns for the multi-layer transmission scheme include first and second patterns based on the same cyclic shifts, but where some, but not all, of the cyclic shifts in the first pattern are associated with the same corresponding orthogonal cover codes in the second pattern.
摘要翻译： 公开了用于发信号通知循环移位和正交覆盖码的模式以供多层传输中的无线设备使用的技术。 在一个示例性方法中，信号包括用于识别参考信号的B比特，其中几个可用参考信号中的每一个由循环移位和正交覆盖码定义。 B位用于根据将每个B位的每个值映射到多层传输方案的循环移位和正交覆盖码组合的模式的预定表来识别循环移位和正交覆盖码。 用于多层传输方案的模式包括基于相同循环移位的第一模式和第二模式，但是第一模式中的一些但不是全部的循环移位与第二模式中的相同对应的正交覆盖码相关联 。
-
7.发明申请Method and an Apparatus in a User Equipment for Controlling Transmission Power of the User Equipment 有权用户设备中用于控制用户设备传输功率的方法和设备公开(公告)号：US20140219152A1
公开(公告)日：2014-08-07
申请号：US14237583
申请日：2012-02-28
申请人： Aram Antó , George Jöngren , Stefano Sorrentino
发明人： Aram Antó , George Jöngren , Stefano Sorrentino
IPC分类号： H04W52/08
CPC分类号： H04W52/08 , H04W52/06 , H04W52/244 , H04W52/245 , H04W52/325 , H04W52/40
摘要： Disclosed are methods and apparatuses in user equipments (1400) and network nodes (1410, 420) for controlling transmission power of the user equipments when the user equipments are connected to a wireless network. The disclosed methods and apparatuses deals with independently controlling transmission power of SRS signals and signals comprising traffic data from the user equipment (1400). Thereby, it is possible to use different power levels for SRS signals intended to e.g. a macro node and for traffic data intended to e.g. a pico node.
摘要翻译： 公开了用户设备（1400）和网络节点（1410,420）中的用户设备连接到无线网络时用于用户设备的传输功率的方法和装置。 所公开的方法和装置处理独立地控制SRS信号的发送功率和包括来自用户设备的业务数据的信号（1400）。 因此，可能使用不同功率水平的SRS信号。 一个宏节点，以及用于例如业务数据的业务数据。 微微节点。
-
公开(公告)号：US08699609B2
公开(公告)日：2014-04-15
申请号：US13130854
申请日：2008-11-27
申请人： Stefano Sorrentino
发明人： Stefano Sorrentino
CPC分类号： H04L5/0007 , H04L5/0023 , H04L27/2621
摘要： The present invention relates to a transmitter and to a receiver and methods thereof wherein the PAPR is reduced by applying a set of different phase rotations to the output of each DFT of the transmitter. A corresponding set of inverse phase rotations are applied to the input of the IDFT of the receiver. The set of phase rotations applied to the subcarriers at the output of the DFT precoder of the transmitter results in a circular time shift of the corresponding time domain at the output of the IDFT modulator. If the phase rotations are properly selected for each DFT precoder, the probability that signal peaks sum in a constructive way at the output of the IDFT modulators is reduced, with a consequent reduction of the PAPR.
摘要翻译： 本发明涉及发射机和接收机及其方法，其中通过对发射机的每个DFT的输出应用一组不同的相位旋转来减小PAPR。 相应的一组逆相位旋转被应用于接收机的IDFT的输入。 施加到发射机的DFT预编码器的输出处的子载波的相位旋转组导致在IDFT调制器的输出处的对应时域的循环时移。 如果针对每个DFT预编码器正确地选择了相位旋转，则在IDFT调制器的输出处信号峰值以建设性方式并入的概率减小，从而导致PAPR的减小。
-
公开(公告)号：US20140078972A1
公开(公告)日：2014-03-20
申请号：US13696494
申请日：2012-10-23
申请人： Stefano Sorrentino
发明人： Stefano Sorrentino
CPC分类号： H04L5/0048 , H04B7/0452 , H04J13/004 , H04J13/0074 , H04L27/2613 , H04W72/04
摘要： The teachings herein disclose device-side and network-side methods (400, 700) and apparatuses (16, 18, 20) for advantageously controlling demodulation reference symbol, “DMRS”, transmissions by wireless devices (20) operating in a wireless communication network (10), so as to reduce or minimize interference between the DMRS transmissions from different wireless devices (20). In one aspect, such improvements in interference control are achieved by, at individual ones of one or more wireless devices (20) operating in the network (10), optionally disabling cyclic shift hopping within individual repetitions of an orthogonal cover code applied to DMRS transmissions by the wireless device (20).
摘要翻译： 这里的教导公开了用于有利地控制解调参考符号“DMRS”的设备侧和网络侧方法（400,700）和装置（16,18,20），在无线通信网络中操作的无线设备（20）的传输 （10），以便减少或最小化来自不同无线设备（20）的DMRS传输之间的干扰。 在一个方面，通过在网络（10）中操作的一个或多个无线设备（20）中的单独的一个或多个无线设备（20）中可选地禁用在应用于DMRS传输的正交覆盖码的单独重复中的循环移位跳跃来实现干扰控制的这种改进 通过无线设备（20）。
-
公开(公告)号：US20130310059A1
公开(公告)日：2013-11-21
申请号：US13640337
申请日：2012-07-30
申请人： Stefan Parkvall , David Astely , Erik Dahlman , David Hammarwall , Bengt Lindoff , Stefano Sorrentino , Leif Wilhelmsson
发明人： Stefan Parkvall , David Astely , Erik Dahlman , David Hammarwall , Bengt Lindoff , Stefano Sorrentino , Leif Wilhelmsson
IPC分类号： H04W72/04
CPC分类号： H04W72/1231 , H04W52/143 , H04W52/244 , H04W72/0446 , Y02D70/00
摘要： In a heterogeneous cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, the data transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node.
摘要翻译： 在异构小区部署中，移动终端可能需要在微微节点正在使用相同的频率或频率集合来传送移动终端的用户数据的同时从宏节点接收控制数据传输。 这可能导致有问题的干扰情况。 根据本发明的几个实施例，使用两种一般方法中的至少一种来减轻上述干扰情况。 在第一种方法中，微微节点的传输功率在一些时间间隔内减小，从而将干扰降低到可能从宏节点接收的水平。 在一些可能与第一种方法组合的第二种方法中，从宏节点发送的数据由微微节点提供，单独或与宏节点组合。
-
-
-
-
-
-
-
-
-
搜索结果
46 条记录 (耗时 0.024 秒)
