CSI reporting for a set of CSI-RS resources
    111.
    发明授权
    CSI reporting for a set of CSI-RS resources 有权
    CSI报告为一组CSI-RS资源

    公开(公告)号:US09264120B2

    公开(公告)日:2016-02-16

    申请号:US13701301

    申请日:2012-10-31

    申请人: George Jöngren

    发明人: George Jöngren

    摘要: A method implemented by a wireless terminal of reporting channel state information to a wireless communication network is disclosed. The wireless terminal receives reference symbols on a set of channel state information reference symbol (CSI-RS) resources, and determines a common transmission rank for the set of CSI-RS resources, based on the reference symbols received on a subset of those CSI-RS resources. The terminal then generates CSI feedback as a function of the common transmission rank, and transmits the CSI feedback to the communication network. The CSI feedback may include the common transmission rank itself, or may include different transmission ranks for different CSI-RS resources each determined as a function of the common transmission rank. A complementary method in which a network node uses such a CSI feedback to perform rank adaptation for the set of CSI-RS resources is also disclosed.

    摘要翻译: 公开了一种由无线终端向无线通信网络报告信道状态信息的方法。 无线终端在一组信道状态信息参考符号(CSI-RS)资源上接收参考符号,并且基于在这些CSI-RS资源的子集上接收到的参考符号来确定CSI-RS资源集合的公共传输等级, RS资源。 终端随后根据公共传输等级生成CSI反馈,并将CSI反馈发送到通信网络。 CSI反馈可以包括公共传输级本身,或者可以包括不同的CSI-RS资源的不同传输级别,每个CSI-RS资源被确定为公共传输级别的函数。 还公开了网络节点使用这样的CSI反馈来对CSI-RS资源集合执行秩自适应的补充方法。

    Artificial interference injection for channel state information reporting
    112.
    发明授权
    Artificial interference injection for channel state information reporting 有权
    用于信道状态信息报告的人为干扰注入

    公开(公告)号:US09179332B2

    公开(公告)日:2015-11-03

    申请号:US13877920

    申请日:2013-03-14

    摘要: A system and method for improving the link adaptation in a wireless communication system is disclosed. User Equipment (UE) forms an interference hypothesis by amending a measured interference and noise by artificially injecting, to the measured interference and noise, interference corresponding to at least one emulated interfering isotropic signal that is virtually transmitted over an associated estimated effective channel. The UE further determines at least one channel state information (CSI) report based on the interference hypothesis, and transmits the CSI report to the network.

    摘要翻译: 公开了一种用于改善无线通信系统中的链路自适应的系统和方法。 用户设备(UE)通过修改测量的干扰和噪声来形成干扰假设,通过人为地将测量到的干扰和噪声干扰对应于在相关联的估计有效信道上虚拟传输的至少一个仿真干扰各向同性信号。 UE还基于干扰假设确定至少一个信道状态信息(CSI)报告,并将CSI报告发送到网络。

    Systems and methods for controlling the power at which a communication device transmits an uplink signal
    113.
    发明授权
    Systems and methods for controlling the power at which a communication device transmits an uplink signal 有权
    用于控制通信设备发送上行链路信号的功率的系统和方法

    公开(公告)号:US09072055B2

    公开(公告)日:2015-06-30

    申请号:US13528080

    申请日:2012-06-20

    摘要: According to some embodiments, there is provided a base station system configured to, among other things, (a) detect whether a particular UE is using too much power to transmit uplink data and (b) in response, transmit a message to the UE instructing the UE to detect a power control RS (PCRS) that is intended only for the particular UE. In some embodiments, the PCRS is transmitted such that the power (actual or nominal) of the PCRS as received by the UE is higher than the power of the previous CRS detected by the UE, thereby leading the UE to calculate a lower PL value, which can lead to the UE lowering its output power.

    摘要翻译: 根据一些实施例,提供了一种基站系统,其被配置用于(a)检测特定UE是否正在使用太多功率来发送上行链路数据,以及(b)作为响应,向UE发送指令 UE检测仅针对特定UE的功率控制RS(PCRS)。 在一些实施例中,发送PCRS使得UE接收的PCRS的功率(实际或标称)高于由UE检测到的先前CRS的功率,从而导致UE计算较低的PL值, 这可能导致UE降低其输出功率。

    NETWORK NODE AND A METHOD THEREIN FOR SCHEDULING A DOWNLINK DATA TRANSMISSION TO A UE, AND A UE AND A METHOD THEREIN FOR RECEIVING A DOWNLINK DATA TRANSMISSION
    114.
    发明申请
    NETWORK NODE AND A METHOD THEREIN FOR SCHEDULING A DOWNLINK DATA TRANSMISSION TO A UE, AND A UE AND A METHOD THEREIN FOR RECEIVING A DOWNLINK DATA TRANSMISSION 有权
    网络节点及其用于调度向UE的下行链路数据传输的方法,以及用于接收下行链路数据传输的UE及其方法

    公开(公告)号:US20150181570A1

    公开(公告)日:2015-06-25

    申请号:US14413870

    申请日:2012-07-17

    IPC分类号: H04W72/04 H04W76/04

    摘要: A network node, a UE and respective methods therein are provided for enabling transmission of data using a resource element reserved for CRS. The method in the network node for scheduling a downlink data transmission to the UE currently connected to the network node, comprises determining to schedule data transmission to the UE using at least one resource element reserved for transmitting CRSs during at least one subframe; and transmitting data to the UE using the at least one resource element reserved for transmitting the at least one CRS during the at least one subframe.

    摘要翻译: 提供网络节点,UE及其各自的方法,以使能使用为CRS保留的资源元素来传输数据。 所述网络节点中用于调度到当前连接到所述网络节点的所述UE的下行链路数据传输的方法包括:使用在至少一个子帧期间保留用于发送CRS的至少一个资源元素来规划到所述UE的数据传输; 以及在所述至少一个子帧期间使用保留用于发送所述至少一个CRS的所述至少一个资源元素向所述UE发送数据。

    Method and arrangement in a wireless communication system
    115.
    发明授权
    Method and arrangement in a wireless communication system 有权
    无线通信系统中的方法和布置

    公开(公告)号:US09059758B2

    公开(公告)日:2015-06-16

    申请号:US13876072

    申请日:2011-09-26

    IPC分类号: H04B7/04 H04B7/06

    摘要: The invention relates to methods and arrangements for rank adaptation for transmissions over a multipie-input-muttipie-output, M1MO, channel in a wireless communications system. A receiving node (270) performs (310) measurements on reference signals received from a sending node (200), The receiving node performs (330a(330b) a first feedback computation for a first rank and at least one second feedback computation for at yeast one second rank based on the measurements. The first feedback computation includes applying a first relation between assumed transmitted energy for data and transmitted energy for the reference signals that is specific to the first rank. A second relation between assumed transmitted energy for data and transmitted energy for the reference signals is specific to the at least one second rank. The receiving node selects (340) one rank based on the feedback computations and indicates (350) the selected rank in a feedback report to the sending node.

    摘要翻译: 本发明涉及用于通过无线通信系统中的多码输入多输出,M1MO,信道的传输的秩适应的方法和装置。 接收节点(270)对从发送节点(200)接收的参考信号执行(310)测量。接收节点对酵母进行第一等级的第一反馈计算和至少一个第二反馈计算 第一反馈计算包括应用假设的数据发射能量与针对第一等级特定的参考信号的发射能量之间的第一关系,数据和发射能量的假设发射能量之间的第二个关系 所述参考信号特定于所述至少一个第二等级,所述接收节点基于所述反馈计算选择(340)一个等级,并且向所述发送节点指示(350)所述反馈报告中的所选等级。

    Mode switching between SU-MIMO and MU-MIMO
    116.
    发明授权
    Mode switching between SU-MIMO and MU-MIMO 有权
    SU-MIMO和MU-MIMO之间的模式切换

    公开(公告)号:US08989290B2

    公开(公告)日:2015-03-24

    申请号:US12666115

    申请日:2008-04-03

    摘要: The present invention relates to a method and arrangements in a communication system for Multi User Multiple-Input-Multiple-Output (MU-MIMO) signaling via Multiple-Input-Multiple-Output (MIMO) antennas between a base station and one of a plurality of mobile terminals supporting both Single User and Multi User Multiple-Input-Multiple-Output (SU-MIMO and MU-MIMO) signaling modes. Switching between the modes is supported in the system and the modes have partly shared signaling. SU-MIMO mode signaling which is redundant, i.e. not needed, for MU-MIMO mode signaling is identified. Bits, i.e. data bits, of the identified redundant signaling is re-interpreted or re-defined to comprise signaling information associated with MU-MIMO mode. The signaling information associated with MU-MIMO mode is signaled to the mobile terminal by using the reinterpreted redundant bits.

    摘要翻译: 本发明涉及在基站与多个基站之一中的多输入多输出(MIMO)天线的多用户多输入多输出(MU-MIMO)信令通信系统中的方法和装置 的支持单用户和多用户多输入多输出(SU-MIMO和MU-MIMO)信令模式的移动终端。 系统支持模式之间切换,模式部分共享信令。 识别用于MU-MIMO模式信令的冗余(即不需要)的SU-MIMO模式信令。 识别的冗余信令的位,即数据位被重新解释或重新定义为包括与MU-MIMO模式相关联的信令信息。 通过使用重新解释的冗余比特,将与MU-MIMO模式相关联的信令信息通知移动终端。

    Method and arrangement in a telecommunication system
    117.
    发明授权
    Method and arrangement in a telecommunication system 有权
    电信系统中的方法和布置

    公开(公告)号:US08868089B2

    公开(公告)日:2014-10-21

    申请号:US13393730

    申请日:2011-03-31

    摘要: A method and an arrangement (800) in a user equipment (420) for reporting Channel State Information, CSI, and a method and an arrangement (1000) in a base station (410) for obtaining CSI are provided. The user equipment (420) is in connection with the base station (410) in a cellular communication network (400). After receiving a receiving (702) a grant in a subframe n to be used for CSI reporting, from the base station, the user equipment determines (703) subframe type of a subframe n+p. The user equipment then reports (704) to the base station, CSI reflecting channel conditions in the subframe type of subframe n+p. p is a variable value.

    摘要翻译: 提供了一种用于在用于获取CSI的基站(410)中报告信道状态信息,CSI以及方法和装置(1000)的用户设备(420)中的方法和装置(800)。 用户设备(420)在蜂窝通信网络(400)中与基站(410)连接。 在从基站接收到用于CSI报告的子帧n中的接收(702)授权之后,用户设备确定(703)子帧n + p的子帧类型。 用户设备然后向基站报告(704)CSI反映子帧n + p的子帧类型中的信道条件。 p是一个变量值。

    Parameterized codebook subsets for use with precoding MIMO transmissions
    118.
    发明授权
    Parameterized codebook subsets for use with precoding MIMO transmissions 有权
    用于预编码MIMO传输的参数化码本子集

    公开(公告)号:US08767681B2

    公开(公告)日:2014-07-01

    申请号:US13080826

    申请日:2011-04-06

    摘要: One aspect of the teachings presented herein provides advantages for sending precoder selection feedback from a transceiver to another transceiver, for use by the other transceiver as precoding recommendations. The transceiver generates two types of precoder selection feedback, where one type uses a smaller signaling payload than the other and therefore provides a distinct reduction in the signaling overhead associated with reporting precoding recommendations. The transceiver uses the reduced-overhead type of reporting when reporting at certain times, or on certain channels, or in response to control signaling. In one example, a UE in an LTE network sends precoder information to an eNodeB on the PUCCH by sending smaller-range index values that index only a subset of precoders, but sends full-range index values when reporting on the PUSCH, which index a larger set of precoders.

    摘要翻译: 本文提供的教导的一个方面提供了将预编码器选择反馈从收发器发送到另一收发器的优点,供另一收发器用作预编码建议。 收发器产生两种类型的预编码器选择反馈,其中一种类型使用比另一种更小的信令有效载荷,因此提供与报告预编码建议相关联的信令开销的明显减少。 收发器在特定时间或某些频道上报告时,或响应于控制信令,使用降低开销类型的报告。 在一个示例中,LTE网络中的UE通过发送仅索引预编码器子集的较小范围的索引值来向PUCCH上的eNodeB发送预编码信息,但是当在PUSCH上报告时发送全范围索引值 较大套预编码器。

    Methods and arrangements in a wireless communication system using multi-codeword transmission and ACK/NACK compression
    119.
    发明授权
    Methods and arrangements in a wireless communication system using multi-codeword transmission and ACK/NACK compression 有权
    使用多码字传输和ACK / NACK压缩的无线通信系统中的方法和布置

    公开(公告)号:US08705575B2

    公开(公告)日:2014-04-22

    申请号:US12999863

    申请日:2009-04-14

    IPC分类号: H04L27/28

    摘要: The present invention relates to methods and arrangements in a wireless communication system that enable the use of multi-codeword transmission and ACK/NACK compression with low performance loss. It also enables the use of advanced receivers of reasonable complexity. This is achieved by a solution based on the even distribution of the symbols of separately coded blocks of information bits over the available physical resources before transmission. Each physical resource will thus carry a mixture of symbols from all blocks of information bits, which results in a more similar channel quality for the blocks of information bits. A compressed ACK/NACK message corresponding to the blocks of information bits will thus be more accurate and the performance loss due to the ACK/NACK compression can be reduced.

    摘要翻译: 本发明涉及无线通信系统中的方法和装置,其能够使用多码字传输和具有低性能损失的ACK / NACK压缩。 它还可以使用合理复杂的高级接收机。 这是通过基于在传输之前的可用物理资源上的分开编码的信息比特块的符号的均匀分布的解决方案来实现的。 因此,每个物理资源将携带来自所有信息比特块的符号的混合,这导致信息比特块的更相似的信道质量。 因此,与信息比特块相对应的压缩ACK / NACK消息将更加准确,并且可以减少由于ACK / NACK压缩引起的性能损失。

    Method and apparatus for conveying precoding information in a MIMO system
    120.
    发明授权
    Method and apparatus for conveying precoding information in a MIMO system 有权
    用于在MIMO系统中传送预编码信息的方法和装置

    公开(公告)号:US08705466B2

    公开(公告)日:2014-04-22

    申请号:US12919282

    申请日:2008-11-03

    申请人: George Jöngren

    发明人: George Jöngren

    IPC分类号: H04W4/00

    摘要: Method and apparatus for conveying precoding information in a control message from a first node to a second node, with information on properties of an associated wireless data transmission (D) between the first and second nodes employing spatial multiplexing and precoding for the data transmission. The first node determines precoding parameters for signal transmission to the receiving node, optionally based on feedback reports from the receiving node. The first node encodes control information bits in precoding information fields of the control message by means of values in TBS fields of the control message, such that the TBS field values determine the interpretation of the bits in the precoding information field(s). The control message is then sent to the second node.

    摘要翻译: 用于将控制消息中的预编码信息从第一节点传送到第二节点的方法和装置,具有关于使用空间复用和数据传输的预编码的第一和第二节点之间的相关联的无线数据传输(D)的属性的信息。 第一节点可选地基于来自接收节点的反馈报告来确定用于向接收节点发送信号的预编码参数。 第一节点通过控制消息的TBS字段中的值对控制消息的预编码信息字段中的控制信息比特进行编码,使得TBS字段值确定预编码信息字段中的比特的解释。 然后将控制消息发送到第二节点。