METHOD AND APPARATUS FOR REPORTING CHANNEL STATUS INFORMATION IN A WIRELESS COMMUNICATION SYSTEM
    21.
    发明申请
    METHOD AND APPARATUS FOR REPORTING CHANNEL STATUS INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中报告信道状态信息的方法和装置

    公开(公告)号:US20120294153A1

    公开(公告)日:2012-11-22

    申请号:US13516965

    申请日:2010-12-28

    IPC分类号: H04W24/10

    摘要: A base station in a downlink of a wireless communication system requires downlink channel status information of terminals to transmit link-adaptive transmission to the terminals. This channel status information is generated as a terminal receives a reference signal to be transmitted via the downlink, and fed back to the base station through a control channel of the uplink. Therefore, an increase in the transmission cycle of the reference signal and the feedback cycle of the channel status information may increase a difference between the channel status having been fed back from a terminal to the base station and the channel status at the point when data is actually transmitted to the terminal, thereby causing inefficient link-adaptive transmission and deteriorating the system performance. The present invention thus provides a method and apparatus for designing an uplink periodic feedback structure for reducing the channel status difference in case a reference signal for the estimation of a downlink channel status is transmitted over a prolonged cycle, and distributing a feedback overhead of terminals in terms of the system.

    摘要翻译: 无线通信系统的下行链路中的基站需要终端的下行链路信道状态信息来向终端发送链路自适应传输。 当终端接收到要通过下行链路发送的参考信号时,生成该信道状态信息,并通过上行链路的控制信道反馈给基站。 因此,参考信号的发送周期的增加和信道状态信息的反馈周期的增加可能增加已经从终端反馈到基站的信道状态与数据的时刻的信道状态之间的差异 实际发送到终端,从而导致低效的链路自适应传输和恶化的系统性能。 因此,本发明提供了一种用于设计用于在延迟的周期内传输用于估计下行链路信道状态的参考信号并且将终端的反馈开销分配在一起的信道状态差异的上行链路周期性反馈结构的方法和装置 系统条款。

    INITIAL ACCESS METHOD AND APPARATUS OF USER EQUIPMENT USING POWER REDUCTION REQUEST IN HETEROGENEOUS NETWORK
    22.
    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。

    METHOD AND APPARATUS FOR DOWNLINK TRANSMISSION BASED ON MIMO PRECODING IN WIRELESS COMMUNICATION SYSTEM EMPLOYING DISTRIBUTED ANTENNA SYSTEMS
    23.
    发明申请
    METHOD AND APPARATUS FOR DOWNLINK TRANSMISSION BASED ON MIMO PRECODING IN WIRELESS COMMUNICATION SYSTEM EMPLOYING DISTRIBUTED ANTENNA SYSTEMS 有权
    基于分布式天线系统的无线通信系统中基于MIMO预测的下行链路传输的方法和装置

    公开(公告)号:US20120207145A1

    公开(公告)日:2012-08-16

    申请号:US13371935

    申请日:2012-02-13

    IPC分类号: H04B7/216 H04W8/00

    摘要: A transmission method and apparatus utilizing Multiple-Input and Multiple-Output (MIMO) precoding based on Distributed Antenna Systems (DASs) are provided. The transmission method includes determining active antenna ports, for a User Equipment (UE) having multiple receive antennas, from among a plurality of Distributed Antenna Ports (DAPs) evenly placed in a service area; assigning a Multiple-Input and Multiple-Output (MIMO) mode to the UE and notifying the UE of the MIMO mode assignment; determining a signal precoding vector on a basis of feedback information for the MIMO mode received from the UE; and precoding a signal using the signal precoding vector and transmitting the precoded signal through the active antenna ports.

    摘要翻译: 提供了一种利用基于分布式天线系统(DAS)的多输入多输出(MIMO)预编码的传输方法和装置。 传输方法包括从均匀放置在服务区域中的多个分布式天线端口(DAP)中确定用于具有多个接收天线的用户设备(UE)的有源天线端口; 向所述UE分配多输入多输出(MIMO)模式,并向所述UE通知所述MIMO模式分配; 基于从UE接收的MIMO模式的反馈信息,确定信号预编码矢量; 并使用信号预编码矢量对信号进行预编码,并通过有源天线端口发送预编码信号。

    METHOD AND APPARATUS FOR SETTING THE INITIAL TRANSMISSION POWER OF A TERMINAL IN A CELLULAR WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS CARRIER AGGREGATION
    24.
    发明申请
    METHOD AND APPARATUS FOR SETTING THE INITIAL TRANSMISSION POWER OF A TERMINAL IN A CELLULAR WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS CARRIER AGGREGATION 审中-公开
    用于确定支持运营商聚合的蜂窝无线通信系统中终端的初始传输功率的方法和装置

    公开(公告)号:US20120202544A1

    公开(公告)日:2012-08-09

    申请号:US13391523

    申请日:2010-08-18

    IPC分类号: H04W52/04 H04W72/04 H04W74/08

    摘要: The present invention relates to a method and apparatus for setting the transmission power of a terminal in a wireless communication system. Particularly, the initial transmission power by means of which the terminal transmits a signal via an uplink non-anchor carrier is determined by reflecting the transmission power by means of which the terminal has most recently transmitted a signal via an uplink anchor carrier and by reflecting the difference between channel environments of the uplink anchor carrier and the uplink non-anchor carrier, in a wireless communication system using a broadband formed by carrier aggregation. Consequently, the initial transmission power of the terminal is set as accurately as possible in the uplink non-anchor carrier, thereby preventing signal transmission delay and improving the reliability of received signals.

    摘要翻译: 本发明涉及一种在无线通信系统中设置终端的发送功率的方法和装置。 特别地,终端通过上行链路非锚定载波发送信号的初始发送功率是通过反射终端最近通过上行链路锚定载波发送信号的发送功率来确定的, 在使用由载波聚合形成的宽带的无线通信系统中,上行链路锚定载波和上行链路非锚定载波的信道环境之间的差异。 因此,终端的初始发送功率尽可能精确地设置在上行链路非锚定载波中,从而防止信号传输延迟并提高接收信号的可靠性。

    Transmission methods for downlink ACK/NACK channels
    29.
    发明授权
    Transmission methods for downlink ACK/NACK channels 有权
    下行ACK / NACK信道的传输方法

    公开(公告)号:US08160172B2

    公开(公告)日:2012-04-17

    申请号:US12219438

    申请日:2008-07-22

    IPC分类号: H04B7/02

    摘要: A method from transmitting data via multiple antennas. In this method, four information bits to be transmitted are multiplexed by using either one of a code division multiplexing scheme or a second code division multiplexing scheme combined with a real and imaginary multiplexing scheme, to generate a code division multiplexed symbol including four vectors. Then, the code division multiplexed symbol is repeatedly transmitted by alternatively applying two transmit diversity schemes via four transmission antennas.

    摘要翻译: 一种通过多个天线发送数据的方法。 在该方法中,通过使用与实数和虚数复用方式组合的码分复用方案或第二码分复用方式中的任一种来复用要发送的四个信息比特,以产生包括四个向量的码分多路复用符号。 然后,通过经由四个发送天线交替地应用两个发射分集方案来重复发送码分复用符号。

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CODEBOOK SUBSET RESTRICTION BITMAP
    30.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CODEBOOK SUBSET RESTRICTION BITMAP 有权
    用于发送和接收CODEBOOK子页限制BITMAP的方法和装置

    公开(公告)号:US20120082248A1

    公开(公告)日:2012-04-05

    申请号:US13249660

    申请日:2011-09-30

    IPC分类号: H04L27/00

    摘要: A method for transmitting and receiving a codebook subset restriction bitmap is provided. The Codebook Subset Restriction (CSR) bitmap transmission method of an evolved Node B (eNB) in transmission mode 9 for communication with 8 antenna ports includes generating a CSR bitmap including bits corresponding to restricted precoding matrix indicators and rank indicators that are not allowed for reporting and transmitting the CSR bitmap to a User Equipment (UE). The CSR bitmap comprises 53 bits corresponding to a first codebook and 56 bits corresponding to a second codebook, the 53 bits corresponding to a first codebook comprise 16, 16, 4, 4, 4, 4, and 1 bits for layers 1, 2, 3, 4, 5, 6, 7, and 8, respectively, and the 56 bits corresponding to a second codebook comprise 16, 16, 16 and 8 bits for layers 1, 2, 3, and 4, respectively.

    摘要翻译: 提供了一种用于发送和接收码本子集限制位图的方法。 用于与8个天线端口进行通信的演进节点B(eNB)中的演进式节点B(eNB)的码本子集限制(CSR)位图发送方法包括生成包括与不允许报告的限制预编码矩阵指示符和秩指示符相对应的位的CSR位图 并将CSR位图发送到用户设备(UE)。 CSR位图包括对应于第一码本的53位和对应于第二码本的56位,对应于第一码本的53位包括用于层1,2的数据的16,16,4,4,4,4和1位, 分别为3,4,5,6,7和8,并且对应于第二码本的56位分别包括用于层1,2,3和4的16,16,16和8位。