Physical random access channel (PRACH) transmission in multicarrier operation
    61.
    发明授权
    Physical random access channel (PRACH) transmission in multicarrier operation 有权
    多载波操作中的物理随机接入信道(PRACH)传输

    公开(公告)号:US08526374B2

    公开(公告)日:2013-09-03

    申请号:US12557485

    申请日:2009-09-10

    IPC分类号: H04W4/00

    摘要: Systems and methodologies are described that facilitate selecting an uplink carrier for random access within a wireless environment having multiple carriers. Selection of an uplink carrier for random access can be randomly selected from a set of available uplink carriers. Additionally, the uplink carrier for random access can be selected based upon which uplink carrier is paired with an anchor carrier. Further, the uplink carrier for random access can be identified based upon a bandwidth related to the user equipment (UE). Reference signals can also be employed in order to identify an uplink carrier to perform random access.

    摘要翻译: 描述了有助于在具有多个载波的无线环境中选择用于随机接入的上行链路载波的系统和方法。 可以从一组可用的上行链路载波中随机选择用于随机接入的上行链路载波的选择。 另外,可以基于哪个上行链路载波与锚定载波配对来选择用于随机接入的上行链路载波。 此外,可以基于与用户设备(UE)相关的带宽来识别用于随机接入的上行链路载波。 也可以使用参考信号来识别上行链路载波以执行随机接入。

    PHASE DIFFERENCE SIGNALING IN MIMO MODE UPLINK
    62.
    发明申请
    PHASE DIFFERENCE SIGNALING IN MIMO MODE UPLINK 有权
    MIMO模式上行链路中的相位差信号

    公开(公告)号:US20130176868A1

    公开(公告)日:2013-07-11

    申请号:US13346540

    申请日:2012-01-09

    申请人: Peter Gaal

    发明人: Peter Gaal

    IPC分类号: H04W72/04 H04W24/02 H04B7/04

    摘要: An uplink signaling method is described where the UE transmits an indication of its ability to maintain relative transmit phase continuity with respect to a plurality of transmit chains thereof in place of being required to actually maintain the phase difference between its transmitters. The signaling method utilizes straightforward signaling with very little overhead, because the indication may be provided by setting the value of a bit in an uplink transmission. In response, a base station adopts an uplink transmission format for communications by the UE based, at least in part, upon the received indication.

    摘要翻译: 描述了上行链路信令方法,其中UE发送其相对于其多个发射链保持相对发射相位连续性的能力的指示,代替实际维持其发射机之间的相位差。 信令方法利用具有很少开销的简单信令,因为可以通过设置上行链路传输中的比特的值来提供指示。 作为响应,基站至少部分地基于接收到的指示,采用用于UE的通信的上行链路传输格式。

    Efficient zadoff-chu sequence generation
    63.
    发明授权
    Efficient zadoff-chu sequence generation 有权
    高效的zadoff-chu序列生成

    公开(公告)号:US08374072B2

    公开(公告)日:2013-02-12

    申请号:US12755998

    申请日:2010-04-07

    IPC分类号: H04J11/00 H04W4/00

    CPC分类号: H04J13/0059 H04J13/14

    摘要: Efficient apparatus and method for Zadoff-Chu (“Chu”) sequence generation avoids additional processing and hardware complexity of conventional quadratic generating formula followed by Discrete Fourier Transform (DFT) with a reference signal generator that produces both a Zadoff-Chu sequence and its DFT. In the wireless communication system (e.g., Long Term Evolution (LTE) system), Chu sequences are extensively used, especially in the uplink (UL). Because of the single carrier operating mode, transmitting a Chu sequence in principle involves a succession of generating that sequence, performing a DFT operation and then an IFFT operation. Assuming that the sequence length is N, the initial sequence generation requires 2N multiplications and the DFT requires more than N log 2(N) multiplications. Given the frequent processing of Chu sequences, this would represent a complexity burden. The invention makes it possible to perform the sequence generation and DFT steps without any multiplication operation, except for possibly calculating certain initial parameters.

    摘要翻译: 用于Zadoff-Chu(Chu)序列生成的高效装置和方法避免了常规二次生成公式的附加处理和硬件复杂性,随后是具有产生Zadoff-Chu序列及其DFT的参考信号发生器的离散傅里叶变换(DFT)。 在无线通信系统(例如,长期演进(Long Term Evolution,LTE)系统)中,尤其在上行链路(UL)中广泛使用了Chu序列。 由于单载波操作模式,原则上发送Chu序列涉及一系列生成该序列,执行DFT操作,然后进行IFFT操作。 假设序列长度为N,则初始序列生成需要2N次乘法,并且DFT需要多于N个log 2(N)乘法。 鉴于Chu序列的频繁处理,这将代表一个复杂的负担。 除了可能计算某些初始参数之外,本发明使得可以执行没有任何乘法运算的序列生成和DFT步骤。

    SYSTEMS AND METHODS FOR CONFIGURING REMOTE RADIO HEADS
    64.
    发明申请
    SYSTEMS AND METHODS FOR CONFIGURING REMOTE RADIO HEADS 有权
    用于配置远程无线电头的系统和方法

    公开(公告)号:US20130021986A1

    公开(公告)日:2013-01-24

    申请号:US13463663

    申请日:2012-05-03

    IPC分类号: H04W8/00

    摘要: In a method of wireless communication, a UE receives a configuration parameter for scrambling or descrambling a signal for which a larger number of scrambling sequences are defined for a particular cell ID for UEs of a newer release. The UE communicates in a network having a base station and remote radio head(s) based on the received configuration parameter.

    摘要翻译: 在无线通信的方法中,UE接收配置参数,用于对针对较新版本的UE的特定小区ID定义更大数量的加扰序列的信号进行加扰或解扰。 UE基于接收到的配置参数在具有基站和远程无线电头的网络中进行通信。

    Global navigation satellite system
    66.
    发明授权
    Global navigation satellite system 有权
    全球导航卫星系统

    公开(公告)号:US08334807B2

    公开(公告)日:2012-12-18

    申请号:US12848922

    申请日:2010-08-02

    IPC分类号: G01S19/33

    摘要: Each of a first and a second navigation satellite system (NSS) are adapted to operate according to a first and a second specification, respectively, and each includes a first and a second plurality of satellite vehicles (SV), respectively. Each of the first and the second plurality of SVs are adapted to be identified by a first and a second plurality of unique corresponding identifications (IDs), respectively. A processor is adapted to receive and identify a first plurality of corresponding signals transmitted from the first plurality of SVs in response to the first plurality of unique corresponding IDs. The processor is adapted to receive and identify a second plurality of corresponding signals transmitted from the second plurality of SVs in response to the second plurality of unique corresponding IDs. The processor is adapted to determine position location information in response to receiving and identifying the first plurality of corresponding signals and the second plurality of corresponding signals.

    摘要翻译: 第一和第二导航卫星系统(NSS)中的每一个分别适于根据第一和第二规范进行操作,并且分别包括第一和第二多个卫星车辆(SV)。 第一和第二多个SV中的每一个适于分别由第一和第二多个唯一对应标识(ID)标识。 处理器适于响应于第一多个唯一对应的ID接收和识别从第一多个SV发送的第一多个对应信号。 处理器适于响应于第二多个唯一对应的ID接收和识别从第二多个SV发送的第二多个对应信号。 处理器适于响应于接收和识别第一多个对应信号和第二多个对应信号来确定位置位置信息。

    Conveying sector load information to mobile stations
    67.
    发明授权
    Conveying sector load information to mobile stations 有权
    向移动台传送扇区负载信息

    公开(公告)号:US08331949B2

    公开(公告)日:2012-12-11

    申请号:US12782820

    申请日:2010-05-19

    IPC分类号: H04W72/00 H04W4/00

    摘要: Improved serving sector selection mechanisms are provided which convey sector load information to a wireless communicator. The wireless communicator can use carrier-to-interference (C/I) ratio measurements and sector load information for each of its Active Set (AS) sectors (or all sectors in its Active Set (AS)) to determine the best serving sector.

    摘要翻译: 提供了改进的服务扇区选择机制,其向无线通信器传送扇区负载信息。 无线通信器可以为其活动集(AS)扇区(或其活动集(AS)中的所有扇区)中的每一个使用载波干扰(C / I)比率测量和扇区负载信息来确定最佳服务扇区。

    METHODS AND APPARATUSES FOR TRANSMITTING AND RECEIVING POSITION REFERENCE SIGNALS
    69.
    发明申请
    METHODS AND APPARATUSES FOR TRANSMITTING AND RECEIVING POSITION REFERENCE SIGNALS 有权
    用于发送和接收位置参考信号的方法和装置

    公开(公告)号:US20120231803A1

    公开(公告)日:2012-09-13

    申请号:US13431788

    申请日:2012-03-27

    IPC分类号: H04W72/12

    摘要: A method and apparatus for generating and use of a position location reference signal that allows a receiver to receive position location signals from relatively weak signal generators when in the presence of a strong signal source. The position location reference signals from multiple sources can be synchronized to occur within a scheduled time slot of a time division multiplexed communication system. During the scheduled time slot, each signal source can configure a transmission that includes a media access control address that corresponds to a value reserved for position location signals. Each signal source also configures the transmission to include a position location reference signal that corresponds to the signal source. The position location signals from each of the signal sources is positioned to occur at a time within the data portion of the scheduled time slot that no neighboring signal source transmits its corresponding position location signal.

    摘要翻译: 一种用于产生和使用位置定位参考信号的方法和装置,其允许接收机在存在强信号源时从相对较弱的信号发生器接收位置信号。 来自多个源的位置定位参考信号可以被同步在时分复用通信系统的调度时隙内。 在调度时隙期间,每个信号源可以配置包括对应于为位置定位信号保留的值的媒体访问控制地址的传输。 每个信号源还将传输配置为包括对应于信号源的位置定位参考信号。 来自每个信号源的位置信号定位成在调度时隙的数据部分内的某个时刻发生,没有相邻信号源发送其对应的位置信号。

    METHOD AND APPARATUS FOR ENABLING CHANNEL AND INTERFERENCE ESTIMATIONS IN MACRO/RRH SYSTEM
    70.
    发明申请
    METHOD AND APPARATUS FOR ENABLING CHANNEL AND INTERFERENCE ESTIMATIONS IN MACRO/RRH SYSTEM 有权
    用于在MACRO / RRH系统中实现通道和干扰估计的方法和装置

    公开(公告)号:US20120207043A1

    公开(公告)日:2012-08-16

    申请号:US13336599

    申请日:2011-12-23

    IPC分类号: H04W24/00

    摘要: Aspects disclosed herein relate to channel and interference estimations in a multiple transmission point environment including an eNB and RRHs. In the disclosed aspects, one or more transmission points can signal to a UE to measure channel state conditions based on a first and a second resource pattern. The UE may receive the signaling and perform interference estimation based at least in part on the first resource pattern, and channel estimation based at least in part on the second resource pattern. The UE may generate a channel state report based on the interference and channel estimations, and transmit the channel state report to a transmission point. The eNB may employ the received channel state report in scheduling one or more resources for use by the UE, and may select or adjust network traffic on the first and the second resource pattern, to affect the resulting channel and interference estimation.

    摘要翻译: 本文公开的方面涉及包括eNB和RRH在内的多传输点环境中的信道和干扰估计。 在所公开的方面中,一个或多个传输点可以向UE发信号,以基于第一和第二资源模式测量信道状态条件。 UE可以至少部分地基于第一资源模式接收信令并执行干扰估计,以及至少部分地基于第二资源模式来进行信道估计。 UE可以基于干扰和信道估计产生信道状态报告,并将信道状态报告发送到传输点。 eNB可以使用所接收的信道状态报告来调度一个或多个资源供UE使用,并且可以选择或调整第一和第二资源模式上的网络流量,以影响所得到的信道和干扰估计。