METHOD AND APPARATUS FOR SENDING DOWNLINK CONTROL INFORMATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM
    32.
    发明申请
    METHOD AND APPARATUS FOR SENDING DOWNLINK CONTROL INFORMATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 审中-公开
    在正交频分多址接入系统中发送下行链路控制信息的方法和装置

    公开(公告)号:US20070036067A1

    公开(公告)日:2007-02-15

    申请号:US11463670

    申请日:2006-08-10

    IPC分类号: H04J11/00 H04Q7/00

    摘要: A method and apparatus for sending downlink control information in an orthogonal frequency division multiple access (OFDMA) system are disclosed. A Node-B allocates at least one subcarrier block to each of a plurality of wireless transmit/receive units (WTRUs) for transmission of downlink user data via an OFDMA downlink data channel in accordance with a scheduling mode. The Node-B compiles downlink control information based on the scheduling mode. The Node-B sends the downlink control information to the WTRUs via an OFDMA downlink control channel. The WTRUs receive and process the downlink user data based on the downlink control information.

    摘要翻译: 公开了一种在正交频分多址(OFDMA)系统中发送下行链路控制信息的方法和装置。 节点B根据调度模式,经由OFDMA下行链路数据信道向多个无线发射/接收单元(WTRU)中的每一个分配至少一个子载波块以用于下行链路用户数据的传输。 节点B根据调度模式编译下行链路控制信息。 节点B通过OFDMA下行链路控制信道向下行链路控制信道发送下行链路控制信息。 WTRU基于下行链路控制信息接收和处理下行链路用户数据。

    Frequency domain joint detection for wireless communication systems

    公开(公告)号:US20060274842A1

    公开(公告)日:2006-12-07

    申请号:US11441881

    申请日:2006-05-26

    IPC分类号: H04K1/10

    摘要: A method and apparatus for frequency domain joint detection for multicarrier code division multiple access (MC-CDMA) and spread orthogonal frequency division multiple access (OFDMA) systems are disclosed. The apparatus includes a receiver having a frequency domain joint detector, whereby channel distortion and data symbols are jointly equalized and detected by the frequency domain joint detector in a frequency domain. Users of the data symbols may be assigned all or a subset of subcarriers with variable spreading factor codes. Alternatively, the subset of subcarriers may be further divided into multiple partitions and the frequency domain joint detection may be performed on the subcarriers in the partition. The users are assigned a spreading code, which may be a Hadamard code, a spread complex quadratic sequence (SCQS) code or any type of orthogonal spreading code.

    Method and system for using angular hopping in wireless communication systems
    34.
    发明申请
    Method and system for using angular hopping in wireless communication systems 审中-公开
    在无线通信系统中使用角度跳跃的方法和系统

    公开(公告)号:US20060035608A1

    公开(公告)日:2006-02-16

    申请号:US11021283

    申请日:2004-12-23

    IPC分类号: H04B1/02 H04B1/04 H04B7/02

    CPC分类号: H04B7/061

    摘要: A method and system is disclosed for transmitting signals at particular angles (i.e. angular hopping) thereby decreasing the amount of signals transmitted at angles that result in signals, or instances thereof, being received by a receiver with poor channel conditions. Wireless signals may be transmitted at angles that are randomly selected over time or varied over time according to a predetermined amount. Additionally, where feedback information is provided from a receiver to a transmitter, signals may be transmitted at angles where a receiver has indicated that signals are being received with good channel conditions.

    摘要翻译: 公开了用于以特定角度(即,角度跳跃)发送信号的方法和系统,从而减少以导致信号或其实例的信号发送的信号的量由具有差的信道条件的接收机接收。 无线信号可以随时间随机选择的角度发射,也可以随着时间的推移根据预定量而变化。 此外,在从接收机向发射机提供反馈信息的情况下,可以以接收机已经指示正在接收具有良好信道条件的信号的角度发送信号。

    HYBRID ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS WTRU AND METHOD
    36.
    发明申请
    HYBRID ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS WTRU AND METHOD 有权
    混合正交频分多址接入WTRU和方法

    公开(公告)号:US20140204899A1

    公开(公告)日:2014-07-24

    申请号:US14164670

    申请日:2014-01-27

    IPC分类号: H04L5/00

    摘要: A hybrid orthogonal frequency division multiple access (OFDMA) wireless transmit/receive unit (WTRU) and method are disclosed. A WTRU includes a transmitter and a receiver. The receiver processes received data to recover data mapped to the subcarriers using OFDMA. The receiver recovers first input data by separating user data from multi-user spread data and recovers second input data from non-spread data.

    摘要翻译: 公开了一种混合正交频分多址(OFDMA)无线发射/接收单元(WTRU)和方法。 WTRU包括发射机和接收机。 接收机处理接收到的数据以恢复使用OFDMA映射到子载波的数据。 接收机通过从多用户扩展数据分离用户数据并从非扩展数据中恢复第二输入数据来恢复第一输入数据。

    Method and apparatus for control of enhanced dedicated channel transmissions
    37.
    发明授权
    Method and apparatus for control of enhanced dedicated channel transmissions 有权
    用于控制增强专用信道传输的方法和装置

    公开(公告)号:US08774118B2

    公开(公告)日:2014-07-08

    申请号:US13523306

    申请日:2012-06-14

    IPC分类号: H04W4/00 H04W72/04 H04W72/14

    摘要: A method and apparatus for controlling enhanced dedicated channel (E-DCH) transmissions are disclosed. An enhanced uplink medium access control (MAC-e/es) entity processes a received scheduling grant to calculate a serving grant. The MAC-e/es entity determines whether both a hybrid automatic repeat request (H-ARQ) process for scheduled data and scheduled data are available. If an H-ARQ process for scheduled data and scheduled data are available, the MAC-e/es entity determines whether a serving grant exists. The MAC-e/es entity calculates a remaining power based on maximum allowed power and restricts an E-DCH transport format combination (E-TFC) based on the remaining power. The MAC-e/es entity selects an E-TFC using the serving grant and generates a MAC-e protocol data unit. The MAC-e/es entity may process the received scheduled grant is at each transmission time interval or may store the received scheduled grant in a grant list until there is E-DCH data to transmit.

    摘要翻译: 公开了一种用于控制增强专用信道(E-DCH)传输的方法和装置。 增强的上行链路媒体接入控制(MAC-e / es)实体处理接收到的调度许可以计算服务授权。 MAC-e / es实体确定调度数据和调度数据的混合自动重传请求(H-ARQ)是否可用。 如果调度数据和调度数据的H-ARQ过程可用,则MAC-e / es实体确定是否存在服务授权。 MAC-e / es实体基于最大允许功率计算剩余功率,并且基于剩余功率限制E-DCH传输格式组合(E-TFC)。 MAC-e / es实体使用服务授权选择E-TFC,并生成MAC-e协议数据单元。 MAC-e / es实体可以在每个传输时间间隔处理接收到的调度许可,或者可以将接收到的调度许可存储在授权列表中,直到有E-DCH数据要发送。

    Method and apparatus for power control of sounding reference signal (SRS) transmission
    38.
    发明授权
    Method and apparatus for power control of sounding reference signal (SRS) transmission 有权
    探测参考信号(SRS)传输功率控制的方法和装置

    公开(公告)号:US08724488B2

    公开(公告)日:2014-05-13

    申请号:US12725733

    申请日:2010-03-17

    IPC分类号: H04W52/32

    摘要: Methods and apparatus for sounding reference signal (SRS) power control for a wireless transmitter/receiver unit (WTRU) are disclosed. These methods and apparatus include methods and apparatus for carrier-specific and carrier-common SRS power control in WTRUs that utilize carrier aggregation techniques. These methods and apparatus also include methods and apparatus for SRS power control in WTRUs utilizing both carrier aggregation and time division multiplexing (TDM) techniques. Additionally, these methods and apparatus include methods and apparatus for SRS power control for WTRUs utilizing multiple input multiple output MIMO operation. Methods and apparatus for SRS overhead reduction and power management in a WTRU are also disclosed.

    摘要翻译: 公开了用于无线发射机/接收机单元(WTRU)的用于探测参考信号(SRS)功率控制的方法和装置。 这些方法和装置包括利用载波聚合技术的WTRU中的载波特有和载波共用SRS功率控制的方法和装置。 这些方法和装置还包括利用载波聚合和时分复用(TDM)技术的WTRU中的SRS功率控制的方法和装置。 此外,这些方法和装置包括利用多输入多输出MIMO操作的WTRU的SRS功率控制的方法和装置。 还公开了WTRU中的用于SRS开销降低和功率管理的方法和装置。