Method and Arrangement of Delay Calibration for OFDM System
    31.
    发明申请
    Method and Arrangement of Delay Calibration for OFDM System 有权
    OFDM系统的延迟校准方法与布置

    公开(公告)号:US20120281744A1

    公开(公告)日:2012-11-08

    申请号:US13518691

    申请日:2009-12-28

    IPC分类号: H04B17/00

    摘要: A method and arrangement in a network entity of delay calibration for an OFDM system in a mobile communication system are disclosed. The delay calibration technique as disclosed includes estimating a time delay difference according to a phase difference between two adjacent sub-carriers, dividing the estimated time delay difference into a coarse time delay and a fine time delay, and compensating the coarse time delay in time domain and the fine time delay in frequency domain respectively.

    摘要翻译: 公开了一种用于移动通信系统中的OFDM系统的延迟校准的网络实体中的方法和装置。 如所公开的延迟校准技术包括根据两个相邻子载波之间的相位差估计时间延迟差异,将估计的时间延迟差划分为粗略的时间延迟和精细的时间延迟,以及补偿时域中的粗略的时间延迟 和频域的精细时间延迟。

    METHOD AND SYSTEM OF COMMUNICATIONS
    32.
    发明申请
    METHOD AND SYSTEM OF COMMUNICATIONS 审中-公开
    通信方法与系统

    公开(公告)号:US20100067563A1

    公开(公告)日:2010-03-18

    申请号:US12438673

    申请日:2006-08-25

    申请人: Hai Wang Qingyu Miao

    发明人: Hai Wang Qingyu Miao

    IPC分类号: H04B1/707 H04B17/00

    摘要: A communications estimation, in radio communications systems, particularly in CDMA type of systems, of signal to interference ratio, signal to noise ratio and signal to interference and noise ratio, includes one or more channel specific parameters in addition to one or more parameters related to received signal, noise or interference.

    摘要翻译: 在无线电通信系统中,特别是CDMA类型的系统中的信号与干扰比,信噪比以及信噪比和噪声比的通信估计包括一个或多个信道特定参数,以及一个或多个与 接收信号,噪声或干扰。

    Dynamic Adjustment of Power Offset for UE/BS Based on Error Event of NACK to ACK.
    33.
    发明申请
    Dynamic Adjustment of Power Offset for UE/BS Based on Error Event of NACK to ACK. 有权
    基于NACK到ACK的错误事件的UE / BS的功率偏移的动态调整。

    公开(公告)号:US20100029322A1

    公开(公告)日:2010-02-04

    申请号:US12513652

    申请日:2006-11-06

    IPC分类号: H04B7/00

    摘要: A radio network system employing a method with dynamic adjustment of the power offset that provides a “per-UE”-NACK to ACK power offset calculation method instead of using a fixed offset for all users in the cell is disclosed. Also for each UE, the power offset can adjusted dynamically. The adjustment is based on the error event of NACK to ACK. When an error event of NACK to ACK happens, the offset is increased, otherwise the offset is decreased. Hence, the offset can be controlled for each User Equipment for the duration of a call starting from some standard configured value is calculated and used rather than a fixed offset.

    摘要翻译: 公开了一种使用动态调整功率偏移的方法的无线电网络系统,该方法为ACK功率偏移计算方法提供“每UE”-NACK,而不是对小区中的所有用户使用固定偏移。 同样对于每个UE,功率偏移可以动态调整。 调整是基于NACK到ACK的错误事件。 当发生NACK到ACK的错误事件时,偏移增加,否则偏移减小。 因此,在从一些标准配置值开始的呼叫期间,可以为每个用户设备控制偏移量,而不是固定偏移。

    Methods in a device-to-device, D2D, enabled user equipment, a D2D enabled user equipment, methods in a base station, a base station, computer programs and computer program products
    35.
    发明授权
    Methods in a device-to-device, D2D, enabled user equipment, a D2D enabled user equipment, methods in a base station, a base station, computer programs and computer program products 有权
    设备到设备,启用D2D的用户设备,启用D2D的用户设备,基站中的方法,基站,计算机程序和计算机程序产品中的方法

    公开(公告)号:US09414428B2

    公开(公告)日:2016-08-09

    申请号:US14356828

    申请日:2011-11-08

    摘要: The invention relates to a method (20) in a device-to-device, D2D, enabled user equipment (12) of a communication system (10). The D2D enabled user equipment (12) supports D2D-communication with another D2D-enabled user equipment (15). The communication system (10) comprises a base station (15) serving one or more cellular user equipment (14) unable to support D2D communication. The D2D enabled user equipment (2, 15) and the cellular user equipment (14) share the same communication resources. The method (20) comprises: receiving (21), from the base station (13), configuration parameters comprising information on a reference signal pattern for use by the D2D enabled user equipment (12), and transmitting (22), based on the configuration parameters, cellular reference signals, enabling the cellular user equipment (14) to measure and report, to the base station (13), channel information on a channel from the D2D enabled user equipment (12) to the cellular user equipment (14). The invention also relates to D2D user equipment, methods in a base station, base station, computer programs and computer program products.

    摘要翻译: 本发明涉及一种在通信系统(10)的设备到设备(D2D)使能的用户设备(12)中的方法(20)。 启用D2D的用户设备(12)支持与另一个启用D2D的用户设备进行D2D通信(15)。 通信系统(10)包括为不能支持D2D通信的一个或多个蜂窝用户设备(14)提供服务的基站(15)。 启用D2D的用户设备(2,15)和蜂窝用户设备(14)共享相同的通信资源。 方法(20)包括:从基站(13)接收(21)包括关于由启用D2D的用户设备(12)使用的参考信号模式的信息的配置参数,以及基于 配置参数,蜂窝基准信号,使蜂窝用户设备(14)能够测量并向基站(13)报告从启用D2D的用户设备(12)到蜂窝用户设备(14)的信道上的信道信息, 。 本发明还涉及D2D用户设备,基站,基站,计算机程序和计算机程序产品中的方法。

    METHODS AND ARRANGEMENTS IN A WIRELESS COMMUNICATION SYSTEM
    36.
    发明申请
    METHODS AND ARRANGEMENTS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中的方法和安排

    公开(公告)号:US20160119048A1

    公开(公告)日:2016-04-28

    申请号:US14992527

    申请日:2016-01-11

    IPC分类号: H04B7/06 H04W52/04

    摘要: Method and arrangement in a user equipment for adjusting signals transmitted in uplink to a network node, based on a feedback value received from the network node. The method comprises transmitting a signal, to be received by the network node. Further, the method comprises receiving a feedback signal from the network node, providing feedback on the transmitted signal. In addition, the method comprises obtaining a value of a time delay of the received feedback signal. Furthermore, the method comprises adjusting signals transmitted in the uplink according to the received feedback signal, wherein compensation is made for the obtained time delay value of the received feedback signal.

    摘要翻译: 基于从网络节点接收到的反馈值,用户设备中用于调整在上行链路中发送到网络节点的信号的方法和装置。 该方法包括发送要由网络节点接收的信号。 此外,该方法包括从网络节点接收反馈信号,提供关于发射信号的反馈。 此外,该方法包括获得所接收的反馈信号的时间延迟的值。 此外,该方法包括根据接收到的反馈信号调整在上行链路中发送的信号,其中对所获得的接收反馈信号的时间延迟值进行补偿。

    Code allocation for uplink MIMO
    37.
    发明授权
    Code allocation for uplink MIMO 有权
    上行MIMO的码分配

    公开(公告)号:US09319111B2

    公开(公告)日:2016-04-19

    申请号:US13376744

    申请日:2011-11-30

    摘要: The disclosure relates to methods and apparatuses that allow for channelization code allocation adapted for uplink MIMO transmissions. A method for use in a user equipment of a telecommunication system comprises spreading data symbols of a plurality of streams to be transmitted from the user equipment as MIMO transmissions. The step of spreading the data symbols comprises allocating, for each stream, at least one channelization code (62) to be applied for spreading the data symbols of the stream. The plurality of streams are allocated channelization codes (62) from a predefined code tree (61) of applicable channelization codes such that any channelization code (62) is allocated to more than one stream only if there is no applicable channelization code left in the code tree (61) which currently is not allocated for any stream. The channelization code allocation scheme makes it possible to avoid inter-stream interference in many scenarios of uplink MIMO transmissions.

    摘要翻译: 本公开涉及允许适用于上行链路MIMO传输的信道化码分配的方法和装置。 一种在电信系统的用户设备中使用的方法包括将要从用户设备发送的多个流的数据符号扩展为MIMO传输。 扩展数据符号的步骤包括为每个流分配要应用于扩展流的数据符号的至少一个信道化码(62)。 多个流从适用的信道化代码的预定码树(61)中分配信道化码(62),使得只有在代码中没有可用的信道化码时,任何信道化码(62)被分配给多于一个流 目前尚未为任何流分配树(61)。 信道化码分配方案可以避免上行链路MIMO传输的许多场景中的流间干扰。

    MU-COMP channel state normalization measure quantization and transmission
    38.
    发明授权
    MU-COMP channel state normalization measure quantization and transmission 有权
    MU-COMP信道状态归一化测量量化和传输

    公开(公告)号:US08599952B2

    公开(公告)日:2013-12-03

    申请号:US13120010

    申请日:2008-09-24

    IPC分类号: H04B7/02

    摘要: Uplink overhead is significantly reduced in a MU-COMP wireless communication network by exploiting the dissimilarity of received signal strength in signals transmitted by geographically distributed transmit antennas, as seen by receiving UEs. Each UE calculates a quantized normalization measure of channel elements for a channel weakly received from a first transmitter to that for a channel strongly received from a second transmitter. The quantized normalization measure may be modeled as a ratio of complex Gaussian variables, and quantized in phase and amplitude by making simplifying assumptions. The ratios are quantized, and transmitted to the network using far fewer bits than would be required to transmit the full channel state information. The network uses the quantized normalization measures to set the transmitter weights.

    摘要翻译: MU-COMP无线通信网络中的上行链路开销明显减少,这是通过接收UE所看到的,利用地理分布式发射天线发射的信号中接收信号强度的不相似性。 每个UE计算对于从第一发射机弱接收的信道的信道单元的量化归一化度量,以及对于从第二发射机强烈接收的信道。 量化归一化测量可以通过简化假设来建模为复数高斯变量的比率,并以相位和幅度量化。 这些比率被量化,并且使用比传输全通道状态信息所需的位少得多的比特来传送到网络。 网络使用量化的归一化度量来设置发射机的权重。

    Interference estimation for uplink TDM in a wireless system
    39.
    发明授权
    Interference estimation for uplink TDM in a wireless system 有权
    无线系统中的上行TDM的干扰估计

    公开(公告)号:US08599742B2

    公开(公告)日:2013-12-03

    申请号:US12867359

    申请日:2008-04-09

    IPC分类号: H04B7/185

    摘要: A system can be implemented in a station associated with a wireless network and the station can receive uplink time division multiplexed (TDM) transmissions from a user device. The system includes a first filter to filter uplink TDM transmissions, associated with the user device, during a first period of time when the user device is transmitting on an uplink data channel (DCH) to generate a first interference estimate. The system further includes a second filter to filter uplink TDM transmissions, associated with the user device, during a second period of time when the user device is not transmitting on the uplink DCH to generate a second interference estimate. The system also includes a third filter to filter uplink TDM transmissions, associated with the user device, during the first and second periods of time, to generate a third interference estimate. The system further includes a power control unit to determine one or more power control commands for sending to the user device based on the first, second and third interference estimates.

    摘要翻译: 系统可以在与无线网络相关联的站中实现,并且该站可以从用户设备接收上行链路时分复用(TDM)传输。 在用户设备在上行链路数据信道(DCH)上进行发送以产生第一干扰估计的第一时段期间,该系统包括用于过滤与用户设备相关联的上行链路TDM传输的第一过滤器。 该系统还包括第二滤波器,用于在用户设备不在上行链路DCH上发送以产生第二干扰估计的第二时段期间过滤与用户设备相关联的上行链路TDM传输。 该系统还包括第三滤波器,以在第一和第二时段期间过滤与用户设备相关联的上行链路TDM传输,以产生第三干扰估计。 该系统还包括功率控制单元,用于基于第一,第二和第三干扰估计来确定用于向用户设备发送的一个或多个功率控制命令。

    Methods and Apparatuses for Transmission Power Control
    40.
    发明申请
    Methods and Apparatuses for Transmission Power Control 有权
    传输功率控制的方法和装置

    公开(公告)号:US20130260814A1

    公开(公告)日:2013-10-03

    申请号:US13378293

    申请日:2011-11-30

    IPC分类号: H04W52/12

    摘要: The disclosure relates to methods and apparatuses that facilitate power and quality control of uplink MIMO transmissions. A method in a NodeB comprises controlling (50) transmission power of multiple pilot signals transmitted by a user equipment by using a single inner power control loop operating on at least one pilot signal of the multiple pilot signals. Some disclosed embodiments also relate to adjustment (60) of a quality target applied by the single inner power control loop and to updating (71, 72) of a power offset for computing the number of bits that the user equipment can transmit on a stream that is associated with a pilot signal that is not power controlled by the single inner power control loop.

    摘要翻译: 本公开涉及促进上行链路MIMO传输的功率和质量控制的方法和装置。 节点B中的方法包括通过使用对多个导频信号的至少一个导频信号进行操作的单个内部功率控制环来控制(50)由用户设备发送的多个导频信号的发送功率。 一些公开的实施例还涉及由单个内部功率控制环路施加的质量目标的调整(60)和用于计算用户设备可以在流的流上传送的位数的功率偏移(71,72)的更新(71,72) 与不由单个内部功率控制回路进行功率控制的导频信号相关联。