METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING PILOT SIGNAL IN A WIRELESS COMMUNICATION SYSTEM
    82.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING PILOT SIGNAL IN A WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中发送/接收导频信号的方法和装置

    公开(公告)号:US20080285529A1

    公开(公告)日:2008-11-20

    申请号:US12120750

    申请日:2008-05-15

    IPC分类号: H04J3/06 H04B7/00

    摘要: A method and apparatus for transmitting a pilot signal in a wireless communication system. A reference cell scrambling code or one of a plurality of additional cell scrambling codes is selected for each combination of one of a plurality of first scrambling codes (PSCs) applied to a first synchronization channel (P-SCH) and one of a plurality of second scrambling codes (SSCs) applied to a second synchronization channel (S-SCH). It is determined whether to transmit the pilot signal using the reference cell scrambling code or one of the plurality of additional cell scrambling codes. The reference cell scrambling code or the additional cell scrambling code is generated according to the determination. The pilot signal is transmitted using the generated reference cell scrambling code or the additional cell scrambling code.

    摘要翻译: 一种用于在无线通信系统中发送导频信号的方法和装置。 对于施加到第一同步信道(P-SCH)的多个第一加扰码(PSC)中的一个的多个第二加扰码(P-SCH)中的一个和多个第二加扰码中的一个的每个组合,选择参考小区扰码或多个附加小区扰码中的一个 应用于第二同步信道(S-SCH)的扰码(SSC)。 确定是否使用参考小区扰码或多个附加小区扰码中的一个发送导频信号。 根据该确定产生参考小区扰码或附加小区扰码。 使用所生成的参考小区扰码或附加小区扰码来发送导频信号。

    Method and apparatus for transmitting synchronization signals in an OFDM based cellular communications system
    83.
    发明授权
    Method and apparatus for transmitting synchronization signals in an OFDM based cellular communications system 有权
    用于在基于OFDM的蜂窝通信系统中发送同步信号的方法和装置

    公开(公告)号:US08873488B2

    公开(公告)日:2014-10-28

    申请号:US13431574

    申请日:2012-03-27

    摘要: Provided is a method and apparatus for transmitting a synchronization signal for cell search in an Orthogonal Frequency Division Multiplexing (OFDM) communications system. The method includes acquiring Primary Synchronization CHannel (P-SCH) sequence and Secondary Synchronization CHannel (S-SCH) sequence; mapping the P-SCH sequence and the S-SCH sequence onto subcarriers; generating OFDM symbols including the P-SCH sequence and the S-SCH sequence mapped onto subcarriers; and transmitting the OFDM symbols, wherein a frame comprising a plurality of OFDM symbols, a part of the plurality of OFDM symbols in the frame is used for transmitting Synchronization CHannel (SCH) comprising P-SCH and S-SCH, and wherein the P-SCH and the S-SCH are mapped to adjacent OFDM symbols and the S-SCH is mapped to subcarriers with a predetermined interval in a frequency domain within an OFDM symbol.

    摘要翻译: 提供了一种用于在正交频分复用(OFDM)通信系统中发送用于小区搜索的同步信号的方法和装置。 该方法包括获取主同步信道(P-SCH)序列和辅同步信道(S-SCH)序列; 将P-SCH序列和S-SCH序列映射到子载波上; 生成包含映射到子载波上的P-SCH序列和S-SCH序列的OFDM符号; 并且发送所述OFDM符号,其中包括多个OFDM符号的帧,所述帧中的所述多个OFDM符号的一部分用于发送包括P-SCH和S-SCH的同步信道(SCH),并且其中所述P- SCH和S-SCH被映射到相邻的OFDM符号,并且在OFDM符号内的频域中将S-SCH映射到具有预定间隔的子载波。

    Method and transmission apparatus for allocating resources to transmit uplink packet data in an orthogonal frequency division multiplexing system
    85.
    发明授权
    Method and transmission apparatus for allocating resources to transmit uplink packet data in an orthogonal frequency division multiplexing system 有权
    用于在正交频分复用系统中分配资源以发送上行链路分组数据的方法和传输装置

    公开(公告)号:US07912135B2

    公开(公告)日:2011-03-22

    申请号:US11472549

    申请日:2006-06-22

    IPC分类号: H04K1/10 H04L27/28

    摘要: Provided is a resource allocation method that considers frequency scheduling gain and frequency diversity gain when uplink packet data is transmitted in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM). A method is provided in which Localized Frequency Division Multiple Access (LFDMA) technology capable of obtaining the frequency scheduling gain and Distributed Frequency Division Multiple Access (DFDMA) technology capable of obtaining the frequency diversity gain are mixed. A method is provided which signals sub-carrier sets mapped to the DFDMA and LFDMA, to terminals.

    摘要翻译: 提供了一种在基于正交频分复用(OFDM)的无线通信系统中发送上行分组数据时考虑频率调度增益和频率分集增益的资源分配方法。 提供一种能够获得能够获得频率分集增益的频率调度增益和分布式频分多址(DFDMA)技术的局部频分多址(LFDMA)技术的方法。 提供了将映射到DFDMA和LFDMA的子载波集合发送到终端的方法。

    Method and transmission apparatus for allocating resources to transmit uplink packet data in an orthogonal frequency division multiplexing system
    86.
    发明申请
    Method and transmission apparatus for allocating resources to transmit uplink packet data in an orthogonal frequency division multiplexing system 有权
    用于在正交频分复用系统中分配资源以发送上行链路分组数据的方法和传输装置

    公开(公告)号:US20070009054A1

    公开(公告)日:2007-01-11

    申请号:US11472549

    申请日:2006-06-22

    IPC分类号: H04K1/10

    摘要: Provided is a resource allocation method that considers frequency scheduling gain and frequency diversity gain when uplink packet data is transmitted in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM). A method is provided in which Localized Frequency Division Multiple Access (LFDMA) technology capable of obtaining the frequency scheduling gain and Distributed Frequency Division Multiple Access (DFDMA) technology capable of obtaining the frequency diversity gain are mixed. A method is provided which signals sub-carrier sets mapped to the DFDMA and LFDMA, to terminals.

    摘要翻译: 提供了一种在基于正交频分复用(OFDM)的无线通信系统中发送上行分组数据时考虑频率调度增益和频率分集增益的资源分配方法。 提供一种能够获得能够获得频率分集增益的频率调度增益和分布式频分多址(DFDMA)技术的局部频分多址(LFDMA)技术的方法。 提供了将映射到DFDMA和LFDMA的子载波集合发送到终端的方法。

    Method and apparatus for transmitting synchronization signals in an OFDM based cellular communication system
    88.
    发明授权
    Method and apparatus for transmitting synchronization signals in an OFDM based cellular communication system 有权
    用于在基于OFDM的蜂窝通信系统中发送同步信号的方法和装置

    公开(公告)号:US08175029B2

    公开(公告)日:2012-05-08

    申请号:US12161436

    申请日:2007-01-16

    摘要: Disclosed is an apparatus and method for transmitting the synchronization signal in an Orthogonal Frequency Division Multiplexing (OFDM) based cellular system. The cell search process widely used in the OFDM based cellular system is divided into two steps for obtaining the frame timing synchronization and obtaining the cell-specific scrambling code. When designing the channel for obtaining the frame timing synchronization and the channel for obtaining the cell-specific scrambling code, different frequency reuse factors are applied to the synchronization channels of different steps according to the characteristics of each synchronization obtainment step in order to improve the performance of each step.

    摘要翻译: 公开了一种用于在基于正交频分复用(OFDM)的蜂窝系统中发送同步信号的装置和方法。 在基于OFDM的蜂窝系统中广泛使用的小区搜索过程被分成两个步骤,用于获得帧定时同步并获得小区特定的扰码。 当设计用于获得帧定时同步的信道和用于获得小区特定扰码的信道时,根据每个同步获取步骤的特性将不同的频率重用因子应用于不同步骤的同步信道,以便提高性能 的每一步。

    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING ACK/NACK IN MOBILE COMMUNICATION SYSTEM
    89.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING ACK/NACK IN MOBILE COMMUNICATION SYSTEM 有权
    用于在移动通信系统中发送/接收ACK / NACK的方法和装置

    公开(公告)号:US20080170634A1

    公开(公告)日:2008-07-17

    申请号:US11972164

    申请日:2008-01-10

    IPC分类号: H04L27/28

    摘要: Disclosed is a method and an apparatus for multiplexing and transmitting/receiving an ACK/NACK resulting from use of a HARQ scheme in an OFDMA system. Frequency and code multiplexing methods are combined with regard to the ACK/NACK to reduce signaling overhead. Frequency multiplexing is conducted by using the MCS level adopted by scheduling channels to improve the ACK/NACK transmitting performance, and code multiplexing is conducted to allocate ACK/NACK resources by using the index of the scheduling channels.

    摘要翻译: 公开了一种用于在OFDMA系统中复用和发送/接收由使用HARQ方案产生的ACK / NACK的方法和装置。 频率和码复用方法与ACK / NACK相结合以减少信令开销。 通过使用由调度信道采用的MCS级别来提高ACK / NACK发送性能进行频率复用,并且通过使用调度信道的索引来进行代码复用来分配ACK / NACK资源。

    Method and apparatus for time multiplexing uplink data and uplink signaling information in an SC-FDMA system
    90.
    发明申请
    Method and apparatus for time multiplexing uplink data and uplink signaling information in an SC-FDMA system 审中-公开
    SC-FDMA系统中上行链路数据和上行信令信息的时间复用方法和装置

    公开(公告)号:US20070211656A1

    公开(公告)日:2007-09-13

    申请号:US11651207

    申请日:2007-01-09

    IPC分类号: H04B7/204

    摘要: Provided is a method and an apparatus for transmitting uplink information items having various characteristics by using a single FFT block. The method includes determining if there is uplink signaling information to be transmitted when there is uplink data to be transmitted; time multiplexing the uplink data and a first pilot for the uplink data and transmitting the multiplexed uplink data and first pilot, when there is no uplink signaling information; and time multiplexing the uplink data, the first pilot for the uplink data, and a second pilot for the uplink data and the uplink signaling information, and transmitting the multiplexed uplink data, first pilot, and second pilot, when there is the uplink signaling information.

    摘要翻译: 提供了一种通过使用单个FFT块来发送具有各种特性的上行链路信息项的方法和装置。 该方法包括当存在要发送的上行链路数据时确定是否存在要发送的上行信令信息; 当没有上行链路信令信息时,对上行链路数据进行时分复用和上行链路数据的第一导频,并发送多路复用的上行链路数据和第一导频; 对上行链路数据进行时分多路复用,上行链路数据的第一导频和上行链路数据的第二导频以及上行链路信令信息,当存在上行信令信息时,发送多路复用的上行链路数据,第一导频和第二导频 。