TRANSMISSION OF ACK/NACK AND TRANSMIT POWER CONTROL FEEDBACK IN EVOLVED UTRA
    43.
    发明申请
    TRANSMISSION OF ACK/NACK AND TRANSMIT POWER CONTROL FEEDBACK IN EVOLVED UTRA 审中-公开
    发送ACK / NACK和发送功率控制反馈在演进的UTRA

    公开(公告)号:US20080225822A1

    公开(公告)日:2008-09-18

    申请号:US12048262

    申请日:2008-03-14

    IPC分类号: H04J1/00

    CPC分类号: H04L5/023

    摘要: A method for transmitting feedback information for a wireless transmit receive unit (WTRU) includes multiplexing the feedback information with an uplink shared channel, mapping the multiplexed feedback information to orthogonal frequency division multiplex (OFDM) symbols and transmitting the feedback information to an e Node B. The method also includes multiplexing the feedback information with the uplink shared channel using distributed frequency division multiplexing (FDM), mapping the feedback information to a first OFDM symbol, and distributing the mapped feedback information equidistantly across the transmission bandwidth.

    摘要翻译: 用于发送用于无线发射接收单元(WTRU)的反馈信息的方法包括:将反馈信息与上行链路共享信道进行复用,将多路复用的反馈信息映射到正交频分复用(OFDM)符号,并将反馈信息发送到e节点B 该方法还包括使用分布式频分复用(FDM)将反馈信息与上行链路共享信道进行多路复用,将反馈信息映射到第一OFDM符号,并将映射的反馈信息等距地分布在传输带宽上。

    Method and system for managing WTRU resources in wireless communication systems
    44.
    发明申请
    Method and system for managing WTRU resources in wireless communication systems 审中-公开
    用于在无线通信系统中管理WTRU资源的方法和系统

    公开(公告)号:US20070076637A1

    公开(公告)日:2007-04-05

    申请号:US11586913

    申请日:2006-10-26

    IPC分类号: H04J3/00

    CPC分类号: H04W16/10 H04B15/02 H04W16/06

    摘要: A method and apparatus for reducing the number of time slots allocated to a wireless transmit/receive unit (WTRU) by a serving cell in a time division duplex (TDD) wireless communication system that comprises a plurality of cells and a radio network controller (RNC) wherein each cell serves WTRUs in a coverage area of the cell and the RNC controls radio resource assignments in the cells comprises the RNC determining whether it is possible to reduce the number of time slots allocated to a target WTRU based on an interference level at each time slot in the serving cell. The RNC reduces the number of time slots allocated to the target WTRU where the determination is positive.

    摘要翻译: 一种用于在包括多个小区和无线电网络控制器(RNC)的时分双工(TDD)无线通信系统中减少由服务小区分配给无线发射/接收单元(WTRU)的时隙数量的方法和装置 ),其中每个小区在小区的覆盖区域中服务WTRU,并且RNC控制小区中的无线电资源分配包括RNC基于每个小区的干扰电平来确定是否可能减少分配给目标WTRU的时隙数量 服务小区中的时隙。 RNC减少分配给目标WTRU的时隙的数量,其中确定是肯定的。

    Wireless communication method and apparatus for selecting cells in an OFDMA system
    45.
    发明申请
    Wireless communication method and apparatus for selecting cells in an OFDMA system 失效
    用于在OFDMA系统中选择小区的无线通信方法和装置

    公开(公告)号:US20070047498A1

    公开(公告)日:2007-03-01

    申请号:US11478816

    申请日:2006-06-30

    IPC分类号: H04B7/216

    摘要: A wireless communication method and apparatus for selecting cells in an orthogonal frequency division multiple access (OFDMA) system are disclosed. A wireless transmit/receive unit (WTRU) measures a downlink path loss of a current serving cell and at least one other cell. The WTRU determines whether a path loss difference between the serving cell and the other cell is below a threshold. If the path loss difference is below the threshold, the WTRU measures a channel quality indicator (CQI) for each of the plurality of subcarrier blocks in the downlink of the current serving cell and the other cell, respectively. The WTRU reports the CQIs to a serving Node-B which selects a new cell based on the CQIs. Alternatively, a centralized access gateway (aGW) may select the new serving cell/Node-B, or the cell selection decision made by the serving Node-B may be forwarded to another Node-B via the centralized aGW.

    摘要翻译: 公开了一种用于在正交频分多址(OFDMA)系统中选择小区的无线通信方法和装置。 无线发射/接收单元(WTRU)测量当前服务小区和至少一个其他小区的下行链路路径损耗。 WTRU确定服务小区和另一小区之间的路径损耗差是否低于阈值。 如果路径损耗差低于阈值,则WTRU分别针对当前服务小区和另一个小区的下行链路中的多个子载波块中的每一个分别测量信道质量指示符(CQI)。 WTRU向基于CQI选择新小区的服务节点B报告CQI。 或者,集中接入网关(aGW)可以选择新的服务小区/节点B,或者由服务节点B做出的小区选择决定可以经由集中式aGW被转发到另一节点B。

    Method and system for managing resources in wireless communication systems
    46.
    发明授权
    Method and system for managing resources in wireless communication systems 有权
    无线通信系统资源管理方法及系统

    公开(公告)号:US07146162B2

    公开(公告)日:2006-12-05

    申请号:US10807969

    申请日:2004-03-24

    IPC分类号: H04Q7/20 H04Q7/00

    CPC分类号: H04W16/10 H04B15/02 H04W16/06

    摘要: A method and system is disclosed for optimizing resource management in wireless communication systems wherein resources in neighboring and serving cells may be reassigned so that fragmentation may be reduced in serving cells. Resources in wireless communication systems are preferably managed to minimize fragmentation and where fragmentation can not be reduced based on current resource allocations, resources may be reassigned to allow fragmentation to be reduced.

    摘要翻译: 公开了一种用于优化无线通信系统中的资源管理的方法和系统,其中可以重新分配相邻和服务小区中的资源,从而可以在服务小区中减少分段。 优选地,管理无线通信系统中的资源以最小化碎片,并且基于当前资源分配不能减少分段,可以重新分配资源以允许减少碎片。

    Orthogonal frequency division multiplexing-code division multiple access system
    47.
    发明申请
    Orthogonal frequency division multiplexing-code division multiple access system 有权
    正交频分复用码分多址系统

    公开(公告)号:US20060245472A1

    公开(公告)日:2006-11-02

    申请号:US11385168

    申请日:2006-03-21

    IPC分类号: H04B1/707 H04K1/10

    摘要: An orthogonal frequency division multiplexing (OFDM)-code division multiple access (CDMA) system is disclosed. The system includes a transmitter and a receiver. At the transmitter, a spreading and subcarrier mapping unit spreads an input data symbol with a complex quadratic sequence code to generate a plurality of chips and maps each chip to one of a plurality of subcarriers. An inverse discrete Fourier transform is performed on the chips mapped to the subcarriers and a cyclic prefix (CP) is inserted to an OFDM frame. A parallel-to-serial converter converts the time-domain data into a serial data stream for transmission. At the receiver, a serial-to-parallel converter converts received data into multiple received data streams and the CP is removed from the received data. A discrete Fourier transform is performed on the received data streams and equalization is performed. A despreader despreads an output of the equalizer to recover the transmitted data.

    摘要翻译: 公开了一种正交频分复用(OFDM)码分多址(CDMA)系统。 该系统包括发射机和接收机。 在发射机处,扩展和副载波映射单元利用复数二次序列码扩展输入数据符号,以产生多个码片,并将每个码片映射到多个副载波中的一个。 对映射到子载波的芯片执行逆离散傅立叶变换,并且将循环前缀(CP)插入到OFDM帧中。 并行到串行转换器将时域数据转换为串行数据流以进行传输。 在接收机处,串并转换器将接收的数据转换成多个接收的数据流,并从接收的数据中移除CP。 对接收的数据流执行离散付里叶变换,并进行均衡。 去扩展器对均衡器的输出进行解扩以恢复发送的数据。

    METHOD AND APPARATUS FOR EFFICIENT CONFIGURATION OF HYBRID SUB-CARRIER ALLOCATION
    49.
    发明申请
    METHOD AND APPARATUS FOR EFFICIENT CONFIGURATION OF HYBRID SUB-CARRIER ALLOCATION 审中-公开
    混合子载波分配的有效配置的方法和装置

    公开(公告)号:US20070149249A1

    公开(公告)日:2007-06-28

    申请号:US11608477

    申请日:2006-12-08

    IPC分类号: H04B1/38

    摘要: In an orthogonal frequency division multiple access (OFDMA) system including at least one base station and at least one wireless transmit/receive unit (WTRU), sub-carriers are allocated for data transmissions to multiple access WTRUs, where sub-carriers are allocated according to a consecutive sub-carrier allocation (CSA) type and a distributed sub-carrier allocation (DSA) type. Pilot signals with distributed pilot sub-carriers are transmitted and measured at each WTRU to obtain a channel quality metric for each pilot sub-carrier. Each WTRU sends feedback to the base station reporting channel quality based on the measured channel quality metrics. An allocation type is selected and adaptively switched according to channel variations in time and frequency domain.

    摘要翻译: 在包括至少一个基站和至少一个无线发射/接收单元(WTRU)的正交频分多址(OFDMA)系统中,分配了用于向多个接入WTRU进行数据传输的子载波,其中根据 连续的子载波分配(CSA)类型和分布式子载波分配(DSA)类型。 在每个WTRU处,发射和测量具有分布式导频子载波的导频信号,以获得每个导频子载波的信道质量度量。 每个WTRU基于所测量的信道质量度量向基站报告信道质量的反馈。 根据时域和频域的频道变化选择分配类型并进行自适应切换。