Random access channel procedure in wireless communication system arranged with repeater
    42.
    发明专利
    Random access channel procedure in wireless communication system arranged with repeater 有权
    无线通信系统随机访问通道程序与重新安装

    公开(公告)号:JP2013093873A

    公开(公告)日:2013-05-16

    申请号:JP2012277639

    申请日:2012-12-20

    CPC classification number: H04W72/082 H04B7/2606 H04W74/0866 H04W84/047

    Abstract: PROBLEM TO BE SOLVED: To provide a method for interference mitigation in a wireless communication system.SOLUTION: Blank subframe link design uses reduced bandwidth either explicit or derived for Closed Subscriber Group (CSG) cell interference mitigation, enabling a non-allowed User Equipment (UE) to co-exist with CSG cells on the same carrier. One could specify UL blank subframes to orthogonalize non-allowed UE and allowed UE transmissions on UL either via explicit UL blank subframe definition or derived from DL blank subframe definition. Scheduling can orthogonalize data transmissions. UE knowledge of RACH occasion is sufficient to start RACH and handover procedure.

    Abstract translation: 要解决的问题:提供一种用于无线通信系统中的干扰减轻的方法。 解决方案:空白子帧链路设计使用缩减的带宽,对于封闭用户组(CSG)小区干扰减轻而言是显式的或导出的,使得不允许的用户设备(UE)能够与同一载波上的CSG小区共存。 可以指定UL空白子帧,以通过显式UL空白子帧定义或从DL空白子帧定义导出在UL上正确化非允许UE和允许的UE传输。 调度可以正交化数据传输。 RACH场合的UE知识足以启动RACH和切换过程。 版权所有(C)2013,JPO&INPIT

    Scrambling sequence generation in communication system
    43.
    发明专利
    Scrambling sequence generation in communication system 有权
    通信系统中的SCRAMBLING序列生成

    公开(公告)号:JP2013034207A

    公开(公告)日:2013-02-14

    申请号:JP2012188916

    申请日:2012-08-29

    Abstract: PROBLEM TO BE SOLVED: To provide techniques for performing scrambling and descrambling.SOLUTION: Different scrambling sequences for different channels are generated based on different cyclic shifts of a base scrambling sequence generated by a linear feedback shift register, which is a maximal-length sequence. A scrambling sequence for a given channel is generated by (1) determining a sequence selector value based on at least one parameter for a channel type value and (2) cyclically shifting the base scrambling sequence based on the sequence selector value. In addition, a reference signal transferred on variable system bandwidth is generated with two scrambling sequences, which are different cyclic shifts of a base scrambling sequence. Scrambling/descrambling for positive and negative frequencies for the reference signal is performed with the first and second scrambling sequences, respectively.

    Abstract translation: 要解决的问题:提供用于执行加扰和解扰的技术。 解决方案:基于由最大长度序列的线性反馈移位寄存器产生的基本加扰序列的不同循环移位,产生不同信道的不同加扰序列。 通过(1)基于信道类型值的至少一个参数来确定序列选择器值,以及(2)基于序列选择器值循环移位基本加扰序列来产生给定信道的加扰序列。 另外,以可变系统带宽传送的参考信号产生具有两个基本加扰序列的不同循环移位的加扰序列。 对于参考信号的正和负频率的加扰/解扰分别用第一和第二加扰序列执行。 版权所有(C)2013,JPO&INPIT

    Method and apparatus for determining location using coarse position estimation value
    46.
    发明专利
    Method and apparatus for determining location using coarse position estimation value 有权
    使用粗略位置估计值确定位置的方法和装置

    公开(公告)号:JP2009063581A

    公开(公告)日:2009-03-26

    申请号:JP2008239807

    申请日:2008-09-18

    CPC classification number: G01S19/40 G01S5/009 G01S19/09

    Abstract: PROBLEM TO BE SOLVED: To calculate the position of a pseudo range receiving device by using inaccurate information (e.g., the old Almanac and/or Ephemeris).
    SOLUTION: The pseudo range receiving device estimates a coarse position by using inaccurate information related to a position of a GPS satellite (e.g., the old Almanac and/or Ephemeris). The result of the estimated coarse position is sent to a position determination device along with the inaccurate information used for the position calculation, and corrections to the coarse position estimation of the pseudo range receiving device are made based upon an error present in the used inaccurate information.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:通过使用不准确的信息(例如,旧年历和/或星历)来计算伪距接收设备的位置。 解决方案:伪距离接收装置通过使用与GPS卫星(例如,旧年历和/或星历)的位置相关的不准确信息来估计粗略位置。 将估计粗略位置的结果与用于位置计算的不准确信息一起发送到位置确定装置,并且基于使用的不准确信息中存在的错误对伪距接收装置的粗略位置估计进行校正 。 版权所有(C)2009,JPO&INPIT

    Secondary synchronization codebook for e-utran
    47.
    发明专利
    Secondary synchronization codebook for e-utran 审中-公开
    用于E-UTRAN的二次同步代码

    公开(公告)号:JP2013243672A

    公开(公告)日:2013-12-05

    申请号:JP2013106184

    申请日:2013-05-20

    Abstract: PROBLEM TO BE SOLVED: To provide secondary synchronization encoding by utilizing a primary synchronization channel (P-SCH)-related scrambling code.SOLUTION: Scrambled secondary synchronization codes (SSCs) are assigned to multiple base stations of a radio access network (RAN). By way of example, PSC-based scrambling codes are created from a plurality of M-sequences generated from a common polynomial expression. Further, an SSC codebook is provided that selects sequence pairs of a sequence matrix for generating the SSCs. The selection is based on transmission characteristics of the resulting SSCs, providing reduced interference in planned, semi-planned and/or unplanned mobile deployments.

    Abstract translation: 要解决的问题:通过利用主同步信道(P-SCH)相关的扰码来提供二次同步编码。解决方案:将加扰的次同步码(SSC)分配给无线电接入网络(RAN)的多个基站。 作为示例,基于从公共多项式表达式生成的多个M序列创建基于PSC的扰码。 此外,提供了SSC码本,其选择用于生成SSC的序列矩阵的序列对。 该选择基于所得到的SSC的传输特性,在计划的,半规划的和/或计划外的移动部署中提供减少的干扰。

    Uplink power control for wireless communication
    49.
    发明专利
    Uplink power control for wireless communication 有权
    无线通信上网功率控制

    公开(公告)号:JP2013240079A

    公开(公告)日:2013-11-28

    申请号:JP2013132492

    申请日:2013-06-25

    Abstract: PROBLEM TO BE SOLVED: To provide closed loop and open loop power control techniques for each antenna of user equipment (UE).SOLUTION: An access point may measure signals received from each antenna of the user equipment, calculate a power adjustment parameter for each antenna of the UE, and transmit the parameters to the UE. The UE may use the adjustment parameters to determine a transmit power value for each antenna. In addition, the UE may measure a path loss for each antenna and update the transmit power per antenna on the basis of the path loss and other parameters.

    Abstract translation: 要解决的问题:为用户设备(UE)的每个天线提供闭环和开环功率控制技术。解决方案:接入点可以测量从用户设备的每个天线接收的信号,计算每个天线的功率调整参数 并将参数发送给UE。 UE可以使用调整参数来确定每个天线的发射功率值。 此外,UE可以测量每个天线的路径损耗,并且基于路径损耗和其他参数来更新每个天线的发射功率。

    Efficient system identification schemes for communication systems
    50.
    发明专利
    Efficient system identification schemes for communication systems 有权
    高效的通信系统识别方案

    公开(公告)号:JP2013158021A

    公开(公告)日:2013-08-15

    申请号:JP2013061924

    申请日:2013-03-25

    CPC classification number: H04W48/12 H04J11/0069 H04L27/2602 H04W56/001

    Abstract: PROBLEM TO BE SOLVED: To facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment.SOLUTION: Relative locations of a PSC and an SSC in a radio frame can be a function of a parameter. A PSC sequence utilized to generate PSCs can be selected based upon a parameter. Inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Pseudo random sequence mappings (e.g., to cell IDs or tone locations) can be a function of a parameter. Parameters indicate whether the base station is part of a TDD or FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or femto cell, or whether the base station is associated with a unicast or multicast system.

    Abstract translation: 要解决的问题:为了有助于在无线通信环境中利用同步信号有效地指示与基站相关联的参数。解决方案:无线电帧中的PSC和SSC的相对位置可以是参数的函数。 可以基于参数来选择用于生成PSC的PSC序列。 从无线电帧中包含或排除PSC可以是参数的函数。 伪随机序列映射(例如,到小区ID或音调位置)可以是参数的函数。 参数指示基站是TDD或FDD系统的一部分,无线电帧是使用FS1还是FS2,基站是与宏单元还是毫微微小区相关联,还是基站是否与单播或多播系统相关联 。

Patent Agency Ranking