LTE-A system and uplink power control method thereof
    3.
    发明授权
    LTE-A system and uplink power control method thereof 有权
    LTE-A系统及其上行链路功率控制方法

    公开(公告)号:US08731596B2

    公开(公告)日:2014-05-20

    申请号:US12896481

    申请日:2010-10-01

    IPC分类号: H04B7/00

    CPC分类号: H04W52/146 H04W52/346

    摘要: An LTE-A system and power control method for controlling cell interference based on codeword-specific transmission power adjustment with a transmission power control offset parameter. The method includes transmitting a parameter KS signaled by a higher layer and codeword-specific power control parameters from a base station to a terminal; calculating gains at the terminal, using the codeword-specific power control parameters and the parameter KS; calculating, at the terminal, codeword-specific transmit powers according to the gains; and transmitting, from the terminal to the base station, at least two codewords at the codeword-specific transmit powers.

    摘要翻译: 一种LTE-A系统和功率控制方法,用于基于使用发射功率控制偏移参数的码字特定发射功率调整来控制小区干扰。 该方法包括从基站向终端发送由较高层发送信号的参数KS和特定于码字的功率控制参数; 使用码字特定功率控制参数和参数KS计算终端的增益; 在终端处根据增益计算码字特定的发射功率; 以及从所述终端向所述基站发送所述码字特定发射功率处的至少两个码字。

    INITIAL ACCESS METHOD AND APPARATUS OF USER EQUIPMENT USING POWER REDUCTION REQUEST IN HETEROGENEOUS NETWORK
    4.
    发明申请
    INITIAL ACCESS METHOD AND APPARATUS OF USER EQUIPMENT USING POWER REDUCTION REQUEST IN HETEROGENEOUS NETWORK 有权
    使用功率降低请求在异构网络中的用户设备的初始访问方法和设备

    公开(公告)号:US20120276895A1

    公开(公告)日:2012-11-01

    申请号:US13516431

    申请日:2010-12-22

    IPC分类号: H04W52/04 H04W52/02

    摘要: An initial access method of a user equipment (UE) and an apparatus performing the same are provided. The initial access method of a user equipment attempting access a macro cell base station in a network with which the macro cell base station and at least one Femto cell base station share, includes: receiving a cell ID from the macro cell base station or the Femto cell base station; transmitting an interference control request message to the Femto call base station when the received cell ID is a Femto cell ID; and receiving a macro cell ID provided from the macro cell base station when an interference control response message is received from the Femto cell base station to attempt an initial access. When a macro UE near to a Femto cell base station attempts to access a macro cell, it searches an ID of the macro cell through interference control from the Femto call base station to achieve initial access.

    摘要翻译: 提供了一种用户设备(UE)的初始接入方法及其执行方法。 在宏小区基站和至少一个毫微微小区基站共享的网络中试图接入宏小区基站的用户设备的初始接入方法包括:从宏小区基站或毫微微小区基站接收小区ID 小区基站; 当接收到的小区ID是毫微微小区ID时,向毫微微呼叫基站发送干扰控制请求消息; 以及当从所述毫微微小区基站接收到干扰控制响应消息以尝试初始接入时,接收从所述宏小区基站提供的宏小区ID。 当靠近毫微微小区基站的宏小区尝试访问宏小区时,通过来自毫微微呼叫基站的干扰控制来搜索宏小区的ID,以实现初始接入。

    Initial access method and apparatus of user equipment using power reduction request in heterogeneous network
    5.
    发明授权
    Initial access method and apparatus of user equipment using power reduction request in heterogeneous network 有权
    在异构网络中使用功率降低请求的用户设备的初始接入方法和装置

    公开(公告)号:US08868062B2

    公开(公告)日:2014-10-21

    申请号:US13516431

    申请日:2010-12-22

    摘要: An initial access method of a user equipment (UE) and an apparatus performing the same are provided. The initial access method of a user equipment attempting access a macro cell base station in a network with which the macro cell base station and at least one Femto cell base station share, includes: receiving a cell ID from the macro cell base station or the Femto cell base station; transmitting an interference control request message to the Femto call base station when the received cell ID is a Femto cell ID; and receiving a macro cell ID provided from the macro cell base station when an interference control response message is received from the Femto cell base station to attempt an initial access. When a macro UE near to a Femto cell base station attempts to access a macro cell, it searches an ID of the macro cell through interference control from the Femto call base station to achieve initial access.

    摘要翻译: 提供了一种用户设备(UE)的初始接入方法及其执行方法。 在宏小区基站和至少一个毫微微小区基站共享的网络中试图接入宏小区基站的用户设备的初始接入方法包括:从宏小区基站或毫微微小区基站接收小区ID 小区基站; 当接收到的小区ID是毫微微小区ID时,向毫微微呼叫基站发送干扰控制请求消息; 以及当从所述毫微微小区基站接收到干扰控制响应消息以尝试初始接入时,接收从所述宏小区基站提供的宏小区ID。 当靠近毫微微小区基站的宏小区尝试访问宏小区时,通过来自毫微微呼叫基站的干扰控制来搜索宏小区的ID,以实现初始接入。

    Communication method and apparatus using codebook in MIMO system
    6.
    发明授权
    Communication method and apparatus using codebook in MIMO system 有权
    MIMO系统中使用码本的通信方法和装置

    公开(公告)号:US08391394B2

    公开(公告)日:2013-03-05

    申请号:US12819744

    申请日:2010-06-21

    IPC分类号: H04B7/02 H04L1/02

    摘要: A method and apparatus for transmitting and receiving signals using a codebook which maps each codeword to at least two different antennas is provided for a MIMO system. A transmission method includes mapping multiple codewords to multiple layers; mapping the multiple layers to multiple antennas using a precoding matrix selected from a rank-3 codebook which is designed to map the codewords to different antennas; and transmitting the codewords through paths formed by mapping the layers and the antennas. The precoding matrix of the rank-3 codebook is designed to equalize transmit power ratios between the antennas. The communication method and apparatus is advantageous to solve the problem of transmit power imbalance among the layers and the problem of performance degradation at the high SNR region in the conventional system using the rank-3 precoding matrices.

    摘要翻译: 为MIMO系统提供使用将每个码字映射到至少两个不同天线的码本发送和接收信号的方法和装置。 传输方法包括将多个码字映射到多个层; 使用从被设计为将码字映射到不同天线的等级3码本中选择的预编码矩阵将多层映射到多个天线; 以及通过映射层和天线形成的路径来发送码字。 第3级码本的预编码矩阵被设计为使天线之间的发射功率比相等。 该通信方法和装置有利于解决传统系统中使用秩3预编码矩阵的层间发射功率不平衡问题和高SNR区域性能退化问题。

    Methods for power headroom reporting, resource allocation, and power control
    7.
    发明授权
    Methods for power headroom reporting, resource allocation, and power control 有权
    功率余量报告,资源分配和功率控制方法

    公开(公告)号:US08699391B2

    公开(公告)日:2014-04-15

    申请号:US12902903

    申请日:2010-10-12

    IPC分类号: G08C17/00

    摘要: A method and apparatus for power headroom reporting are provided. The power headroom reporting method for a mobile terminal may include determining whether a Physical Uplink Shared Channel (PUSCH) transmission and a Physical Uplink Control Channel (PUCCH) transmission are allowed to occur in a same subframe; determining whether an event for requesting power headroom reporting is generated; and reporting a first power headroom and a second power headroom to a base station.

    摘要翻译: 提供了一种用于功率余量报告的方法和装置。 用于移动终端的功率余量报告方法可以包括:确定物理上行链路共享信道(PUSCH)传输和物理上行链路控制信道(PUCCH)传输是否允许发生在同一子帧中; 确定是否产生用于请求功率余量报告的事件; 以及向基站报告第一功率余量和第二功率余量。

    METHOD AND APPARATUS FOR A MOBILE SELECTION BASED INITIAL ACCESS SCHEME IN A MULTICARRIER SYSTEM
    9.
    发明申请
    METHOD AND APPARATUS FOR A MOBILE SELECTION BASED INITIAL ACCESS SCHEME IN A MULTICARRIER SYSTEM 有权
    在多媒体系统中基于移动选择的初始访问方案的方法和装置

    公开(公告)号:US20100322174A1

    公开(公告)日:2010-12-23

    申请号:US12817825

    申请日:2010-06-17

    IPC分类号: H04W72/04

    CPC分类号: H04W74/006 H04W74/0833

    摘要: A method and apparatus for initial access of a mobile device in multi-carrier system. A base station transmits initial access resource information about the entire system band to the mobile device through a specific carrier to which the mobile device tries initial access. The mobile device determines an uplink initial access band by using received initial access resource information. The base station enables initial access through a predefined downlink response band.

    摘要翻译: 一种用于在多载波系统中初始接入移动设备的方法和装置。 基站通过移动设备尝试初始访问的特定载波向移动设备发送关于整个系统频带的初始接入资源信息。 移动设备通过使用接收到的初始接入资源信息来确定上行链路初始接入频带。 基站能够通过预定义的下行链路响应频带进行初始接入。