METHOD AND APPARATUS FOR SYNCHRONIZATION IN AN OFDMA EVOLVED UTRA WIRELESS COMMUNICATION SYSTEM
    3.
    发明申请
    METHOD AND APPARATUS FOR SYNCHRONIZATION IN AN OFDMA EVOLVED UTRA WIRELESS COMMUNICATION SYSTEM 有权
    用于同步发展的无线通信无线通信系统的方法和装置

    公开(公告)号:US20080013516A1

    公开(公告)日:2008-01-17

    申请号:US11735628

    申请日:2007-04-16

    IPC分类号: H04B7/216

    摘要: A method and apparatus for synchronization in an orthogonal frequency division multiple access (OFDMA) evolved universal terrestrial radio access (E-UTRA) system including at least one base station and a plurality of wireless transmit/receive units (WTRUs). A secondary synchronization channel (S-SCH) symbol is generated to include cell-specific information. The S-SCH symbol is mapped to the center of the available bandwidth of the system. In one embodiment, the S-SCH symbol is transmitted on different subcarriers at different sectors in the system. In another embodiment, the S-SCH symbol is transmitted on the same subcarriers at different sectors in the system.

    摘要翻译: 一种用于在包括至少一个基站和多个无线发射/接收单元(WTRU)的正交频分多址(OFDMA)演进的通用地面无线接入(E-UTRA)系统中进行同步的方法和装置。 生成辅同步信道(S-SCH)符号以包括小区特定信息。 S-SCH符号映射到系统可用带宽的中心。 在一个实施例中,S-SCH符号在系统中不同扇区的不同子载波上发送。 在另一个实施例中,S-SCH符号在系统中的不同扇区的相同子载波上发送。

    METHOD AND SYSTEM FOR SCHEDULING UPLINK TRANSMISSIONS IN A SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM
    4.
    发明申请
    METHOD AND SYSTEM FOR SCHEDULING UPLINK TRANSMISSIONS IN A SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 审中-公开
    在单载波频段多路访问系统中调度上行链路传输的方法和系统

    公开(公告)号:US20070297386A1

    公开(公告)日:2007-12-27

    申请号:US11460039

    申请日:2006-07-26

    IPC分类号: H04B7/208

    摘要: A method and system for scheduling uplink transmissions in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. A Node-B receives a scheduling request from a wireless transmit/receive unit (WTRU). The Node-B selects at least one subcarrier block having a certain bandwidth for the WTRU based on quality of service (QoS) requirement of the WTRU. If the QoS requirement is high, the Node-B selects at least one subcarrier block having a large bandwidth and if the QoS requirement is low, the Node-B selects at least one subcarrier block having a small bandwidth. The Node-B then schedules uplink transmissions in a time domain and/or a frequency domain based on a predetermined factor. The Node-B may perform frequency and/or time hopping in scheduling the uplink transmissions.

    摘要翻译: 公开了一种用于在单载波频分多址(SC-FDMA)系统中调度上行链路传输的方法和系统。 节点B从无线发射/接收单元(WTRU)接收调度请求。 基于WTRU的服务质量(QoS)要求,节点B向WTRU选择具有一定带宽的至少一个子载波块。 如果QoS要求较高,则节点B选择至少一个具有大带宽的子载波块,如果QoS要求较低,则节点B选择具有小带宽的至少一个子载波块。 然后,节点B基于预定因子在时域和/或频域中调度上行链路传输。 节点B可以在调度上行链路传输时执行频率和/或时间跳跃。

    METHOD FOR ENHANCED DEDICATED CHANNEL (E-DCH) TRANSMISSION OVERLAP DETECTION FOR COMPRESSED MODE GAP SLOTS
    7.
    发明申请
    METHOD FOR ENHANCED DEDICATED CHANNEL (E-DCH) TRANSMISSION OVERLAP DETECTION FOR COMPRESSED MODE GAP SLOTS 有权
    用于压缩模式缝隙的增强专用信道(E-DCH)传输超检测方法

    公开(公告)号:US20080069280A1

    公开(公告)日:2008-03-20

    申请号:US11858337

    申请日:2007-09-20

    IPC分类号: H04L7/027

    CPC分类号: H04B7/2656

    摘要: A method and apparatus for detecting an overlap of an E-DCH transmission or retransmission in TTIs that overlap with an assigned uplink compressed mode gap is disclosed. More specifically, detecting an overlap of an E-DCH transmission or retransmission in TTIs that overlap with an uplink compressed mode gap assigned by a Node B when a WTRU is configured with a 2 ms TTI is disclosed. After detecting the overlap of the E-DCH transmission or retransmission and the uplink compressed mode gap, the E-DCH transmission or retransmission is paused.

    摘要翻译: 公开了一种用于检测与分配的上行链路压缩模式间隙重叠的TTI中的E-DCH传输或重传的重叠的方法和装置。 更具体地,公开了当WTRU配置有2ms TTI时,检测与由节点B分配的上行链路压缩模式间隙重叠的TTI中的E-DCH传输或重传的重叠。 在检测到E-DCH传输或重传与上行链路压缩模式间隙的重叠之后,暂停E-DCH传输或重传。

    METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN A WIRELESS COMMUNICATION SYSTEM
    8.
    发明申请
    METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    在无线通信系统中执行随机访问的方法和装置

    公开(公告)号:US20070291696A1

    公开(公告)日:2007-12-20

    申请号:US11763862

    申请日:2007-06-15

    IPC分类号: H04Q7/00

    摘要: A method and apparatus for random access in an evolved universal terrestrial radio access (E-UTRA) system are disclosed. For code division multiplexing (CDM), a basic preamble is generated using a constant amplitude zero auto-correlation (CAZAC) sequence. The basic preamble is repeated for M time for generating a random access channel (RACH) preamble. For time division multiplexing/frequency division multiplexing (TDM/FDM), an extended CAZAC sequence is used to generate the basic preamble. Alternatively, a hybrid RACH access period including at least one CDM random access slot and at least one TDM/FDM random access slot may be provided. For synchronized random access, a RACH burst including a preamble part, a message part, and two cyclic prefixes may be generated and transmitted

    摘要翻译: 公开了一种在演进的通用陆地无线电接入(E-UTRA)系统中随机接入的方法和装置。 对于码分复用(CDM),使用恒幅零自相关(CAZAC)序列生成基本前同步码。 为了生成随机接入信道(RACH)前导码,M个时间重复基本前同步码。 对于时分复用/频分复用(TDM / FDM),使用扩展CAZAC序列来生成基本前同步码。 或者,可以提供包括至少一个CDM随机接入时隙和至少一个TDM / FDM随机接入时隙的混合RACH接入时段。 对于同步随机接入,可以生成并发送包括前导码部分,消息部分和两个循环前缀的RACH脉冲串