Wireless communication method and apparatus for decoding enhanced dedicated channel absolute grant channel transmissions
    61.
    发明申请
    Wireless communication method and apparatus for decoding enhanced dedicated channel absolute grant channel transmissions 有权
    用于解码增强的专用信道绝对授权信道传输的无线通信方法和装置

    公开(公告)号:US20070061673A1

    公开(公告)日:2007-03-15

    申请号:US11478395

    申请日:2006-06-28

    CPC classification number: H04L1/0045 H04L1/0061 H04W28/22

    Abstract: A wireless communication method and apparatus for decoding enhanced dedicated channel (E-DCH) absolute grant channel (E-AGCH) transmissions are disclosed. A wireless transmit/receive unit (WTRU) receives E-AGCH data which includes a cyclic redundancy check (CRC) part and a data part. The CRC part is masked with a WTRU identity (ID) at a Node-B. The CRC part and the data part are demultiplexed and the CRC part is demasked with the WTRU ID. A CRC is then performed with the demasked CRC part. If the CRC passes the data part is sent to an enhanced uplink medium access control (MAC-e) entity. The WTRU ID may be a primary E-DCH radio network temporary identity (E-RNTI) or a secondary E-RNTI. When the E-AGCH data is transmitted over a 10 ms frame, if the CRC fails, E-AGCH data via subsequent subframe may be soft combined with the previous E-AGCH data.

    Abstract translation: 公开了一种用于解码增强专用信道(E-DCH)绝对授权信道(E-AGCH)传输的无线通信方法和装置。 无线发射/接收单元(WTRU)接收包括循环冗余校验(CRC)部分和数据部分的E-AGCH数据。 CRC节点在Node-B处被掩码为WTRU身份(ID)。 CRC部分和数据部分被解复用,并且CRC部分被解除与WTRU ID。 然后用解除的CRC部分执行CRC。 如果CRC通过,则将数据部分发送到增强型上行链路媒体访问控制(MAC-e)实体。 WTRU ID可以是主E-DCH无线电网络临时标识(E-RNTI)或辅助E-RNTI。 当通过10ms帧发送E-AGCH数据时,如果CRC失败,则经由后续子帧的E-AGCH数据可以与先前的E-AGCH数据进行软组合。

    Hybrid orthogonal frequency division multiple access system and method
    62.
    发明申请
    Hybrid orthogonal frequency division multiple access system and method 有权
    混合正交频分多址系统及方法

    公开(公告)号:US20060256839A1

    公开(公告)日:2006-11-16

    申请号:US11406878

    申请日:2006-04-19

    Abstract: A hybrid orthogonal frequency division multiple access (OFDMA) system including a transmitter and a receiver is disclosed. The transmitter includes a first spread OFDMA subassembly, a first non-spread OFDMA subassembly and a first common subassembly. The first spread OFDMA subassembly spreads input data and maps the spread data to a first group of subcarriers. The first non-spread OFDMA subassembly maps input data to a second group of subcarriers. The first common subassembly transmits the input data mapped to the first and second group of subcarriers using OFDMA. The receiver includes a second spread OFDMA subassembly, a second non-spread OFDMA subassembly and a second common subassembly. The second common subassembly processes received data to recover data mapped to the subcarriers using OFDMA. The second spread OFDMA subassembly recovers the first input data by separating user data in a code domain and the second non-spread OFDMA subassembly recovers the second input data.

    Abstract translation: 公开了一种包括发射机和接收机的混合正交频分多址(OFDMA)系统。 发射机包括第一扩展OFDMA子组件,第一非扩展OFDMA子组件和第一公共子组件。 第一扩频OFDMA子组件扩展输入数据并将扩展数据映射到第一组子载波。 第一非扩展OFDMA子组件将输入数据映射到第二组副载波。 第一公共子组件使用OFDMA发送映射到第一和第二组子载波的输入数据。 接收机包括第二扩展OFDMA子组件,第二非扩展OFDMA子组件和第二公共子组件。 第二个公共子组件使用OFDMA来处理接收的数据以恢复映射到子载波的数据。 第二扩频OFDMA子组件通过分离码域中的用户数据并且第二非扩展OFDMA子组件恢复第二输入数据来恢复第一输入数据。

    Wireless communication method and system for forming three-dimensional control channel beams and managing high volume user coverage areas
    63.
    发明申请
    Wireless communication method and system for forming three-dimensional control channel beams and managing high volume user coverage areas 审中-公开
    用于形成三维控制信道波束和管理大容量用户覆盖区域的无线通信方法和系统

    公开(公告)号:US20050272472A1

    公开(公告)日:2005-12-08

    申请号:US11019422

    申请日:2004-12-22

    CPC classification number: H04W16/28 H04W16/24

    Abstract: A wireless communication system and method generates and shapes one or more three-dimensional control channel beams for transmitting and receiving signals. Each three-dimensional beam is directed to cover a particular coverage area and beam forming is utilized to adjust bore sight and beam width of the three-dimensional beam in both azimuth and elevation, and the three-dimensional control channel beam is identified. In another embodiment, changes in hot-zones or hot-spots, (i.e., designated high volume user coverage areas), are managed by a network cell base station having at least one antenna. Each of a plurality of wireless transmit/receive units (WTRUs) served by the base station use a formed beam based on one or more beam characteristics. When the coverage area is changed, the base station instructs at least one of the WTRUs to change its beam characteristics such that it forms a return beam concentrated on the antenna of the base station.

    Abstract translation: 无线通信系统和方法产生并形成用于发送和接收信号的一个或多个三维控制信道波束。 每个三维光束被引导以覆盖特定的覆盖区域,并且利用光束成形来调节三维光束在方位角和仰角中的视野和光束宽度,并且识别三维控制信道光束。 在另一个实施例中,热区或热点(即,指定的大容量用户覆盖区域)的变化由具有至少一个天线的网络小区基站管理。 由基站服务的多个无线发射/接收单元(WTRU)中的每一个基于一个或多个波束特性使用形成的波束。 当覆盖区域改变时,基站指示至少一个WTRU改变其波束特性,使得它形成集中在基站的天线上的返回波束。

    Method and apparatus for uplink synchronization in wireless communications
    64.
    发明授权
    Method and apparatus for uplink synchronization in wireless communications 失效
    无线通信中上行链路同步的方法和装置

    公开(公告)号:US06954447B2

    公开(公告)日:2005-10-11

    申请号:US10973134

    申请日:2004-10-26

    CPC classification number: H04W56/0005 H04B1/70757 H04B7/2668 H04B2201/70701

    Abstract: A method and system for uplink (UL) synchronization of an uplink transmission from a plurality of wireless transmit/receive units (WTRUs) to a Node-B in a code division multiple access (CDMA) system. A Node-B receives a transmission including a UL synchronization (SYNC_UL) sequence from a WTRU. A sampler samples the transmission at a sampling rate which is higher than a chip rate. The samples are down-sampled and the SYNC_UL sequence is detected at a lower rate. A first significant path location of the detected SYNC_UL sequence is determined, and based on the first significant path location, a final significant path location is determined. The final significant path location is quantized and UpPCHPOS is transmitted to the WTRU to adjust a UL transmission timing.

    Abstract translation: 一种用于在码分多址(CDMA)系统中从多个无线发射/接收单元(WTRU)到节点B的上行链路传输的上行链路(UL)同步的方法和系统。 节点B从WTRU接收包括UL同步(SYNC_UL)序列的传输。 采样器以高于芯片速率的采样率采样传输。 样本被采样,并以较低的速率检测SYNC_UL序列。 确定检测到的SYNC_UL序列的第一重要路径位置,并且基于第一有效路径位置确定最终重要路径位置。 量化最后的有效路径位置,并且向WTRU传输UpPCH POS POS以调整UL传输定时。

    Generalized two-stage data estimation

    公开(公告)号:US06937644B2

    公开(公告)日:2005-08-30

    申请号:US10753631

    申请日:2004-01-08

    Abstract: Symbols are to be recovered from signals received in a shared spectrum. Codes of the signals received in the shared spectrum are processed using a block Fourier transform (FT), producing a code block diagonal matrix. A channel response of the received signals is estimated. The channel response is extended and modified to produce a block circulant matrix and a block FT is taken, producing a channel response block diagonal matrix. The code block diagonal matrix is combined with the channel response block diagonal matrix. The received signals are sampled and processed using the combined code block diagonal matrix and the channel response block diagonal matrix with a Cholesky algorithm. A block inverse FT is performed on a result of the Cholesky algorithm to produce spread symbols. The spread symbols are despread to recover symbols of the received signals.

    Single user detection circuit
    66.
    发明申请
    Single user detection circuit 有权
    单用户检测电路

    公开(公告)号:US20050180495A1

    公开(公告)日:2005-08-18

    申请号:US11100901

    申请日:2005-04-07

    CPC classification number: H04B1/71052 H04B1/71055

    Abstract: A circuit for use in a receiver receives a plurality of code division multiple access data signals simultaneously. Each data signal experiences a similar channel response. The circuit receives a combined signal over the shared spectrum in a time slot. The combined signal comprises the plurality of data signals. The combined signal is sampled at a multiple of a chip rate of the combined signal. The similar channel response is estimated. A channel response matrix or a channel correlation matrix is constructed based in part on the estimated channel response. A spread data vector is determined based in part on a fast Fourier transform (FFT) decomposition of a circulant version of the channel response matrix or channel correlation matrix. The spread data vector is despread to recover data from the matrix.

    Abstract translation: 用于接收机的电路同时接收多个码分多址数据信号。 每个数据信号经历类似的信道响应。 电路在时隙中通过共享频谱接收组合信号。 组合信号包括多个数据信号。 组合信号以组合信号的码片速率的倍数进行采样。 估计类似的信道响应。 部分基于估计的信道响应构建信道响应矩阵或信道相关矩阵。 部分地基于信道响应矩阵或信道相关矩阵的循环版本的快速傅里叶变换(FFT)分解来确定扩展数据向量。 扩展数据向量被解扩以从矩阵中恢复数据。

    Wireless communication method and apparatus for performing multi-user detection using reduced length channel impulse responses
    67.
    发明申请
    Wireless communication method and apparatus for performing multi-user detection using reduced length channel impulse responses 审中-公开
    用于使用减少长度的信道脉冲响应执行多用户检测的无线通信方法和装置

    公开(公告)号:US20050175074A1

    公开(公告)日:2005-08-11

    申请号:US11010720

    申请日:2004-12-13

    CPC classification number: H04B1/7105 H04B1/7107 H04B1/7115

    Abstract: Joint detection is performed in a multi-user detector (MUD) using reduced length channel impulse responses and using interference cancellation (IC) in the dimension of delay spread as a whole, whereby several clusters of smaller delay spread are processed. Several clusters of real transmitted paths that are close to each other are grouped together and zeros that occur between the path cluster groups are discarded. Each cluster group has a much shorter delay spread and thus has smaller dimensions of system matrix A. Mutual interference occurring between the path cluster groups is eliminated by applying an interference cancellation technique.

    Abstract translation: 在多用户检测器(MUD)中使用减小的长度信道脉冲响应并且在整个延迟扩展的维度中使用干扰消除(IC)来执行联合检测,从而处理较小延迟扩展的几个簇。 彼此靠近的几个真实传输路径的群组被分组在一起,并且在路径群集组之间发生的零被丢弃。 每个簇组具有更短的延迟扩展,因此具有较小的系统矩阵A的维度。通过应用干扰消除技术来消除路径簇组之间发生的相互干扰。

    Wireless user equipment for use in reducing cross cell interference
    68.
    发明授权
    Wireless user equipment for use in reducing cross cell interference 有权
    用于减少交叉干扰的无线用户设备

    公开(公告)号:US06882849B2

    公开(公告)日:2005-04-19

    申请号:US10427174

    申请日:2003-05-01

    Applicant: Jung-Lin Pan

    Inventor: Jung-Lin Pan

    Abstract: A wireless time division duplex/code division multiple access user equipment measures an interference level in time slots. The interference measurements are transmitted. The transmitted interference measurements enable for each of a plurality of nearby user equipments potentially near the user equipment not in a cell of the user equipment to classify timeslots and to determine non-interfering and interfering ones of the nearby user equipments using the timeslots classifying. Communications are transmitted over timeslots assigned by a received timeslot assignment. The received timeslot assignment based on the determined non-interfering and interfering ones of the nearby user equipments. The received timeslot assignment is received. Communications are received over timeslots assigned by the received timeslot assignment.

    Abstract translation: 无线时分双工/码分多址用户设备测量时隙中的干扰电平。 传输干扰测量。 传输的干扰测量使得潜在地在用户设备附近的多个附近用户设备中的每一个不在用户设备的小区中对时隙进行分类,并使用时隙分类来确定附近用户设备中的不干扰和干扰的用户设备。 通过接收时隙分配分配的时隙发送通信。 所接收的时隙分配基于所确定的附近用户设备的不干扰和干扰的。 收到接收到的时隙分配。 通过接收时隙分配分配的时隙接收通信。

    Single user detection user equipment
    69.
    发明授权
    Single user detection user equipment 有权
    单用户检测用户设备

    公开(公告)号:US06879578B2

    公开(公告)日:2005-04-12

    申请号:US10077509

    申请日:2002-02-15

    CPC classification number: H04B1/71052 H04B1/71055

    Abstract: A time division duplex using code division multiple access user equipment receives a plurality of data signals in a time slot. Each data signal experiences a similar channel response. The user equipment receives a combined signal over the shared spectrum in a time slot. The combined signal comprises the plurality of data signals. The combined signal is sampled at a multiple of a chip rate of the combined signal. The similar channel response is estimated. A channel response matrix or a channel correlation matrix is constructed based on in part the estimated channel response. A spread data vector is determined based on in part a fast fourier transform (FFT) decomposition of a circulant version of the channel response or channel correlation matrix. The spread data vector is despread to recover data from the matrix.

    Abstract translation: 使用码分多址用户设备的时分双工在时隙中接收多个数据信号。 每个数据信号经历类似的信道响应。 用户设备在时隙中通过共享频谱接收组合信号。 组合信号包括多个数据信号。 组合信号以组合信号的码片速率的倍数进行采样。 估计类似的信道响应。 基于估计的信道响应部分构建信道响应矩阵或信道相关矩阵。 基于信道响应或信道相关矩阵的循环版本的部分快速傅立叶变换(FFT)分解来确定扩展数据向量。 扩展数据向量被解扩以从矩阵中恢复数据。

    Generalized two-stage data estimation
    70.
    发明申请
    Generalized two-stage data estimation 失效
    广义两阶段数据估计

    公开(公告)号:US20050013347A1

    公开(公告)日:2005-01-20

    申请号:US10753631

    申请日:2004-01-08

    Abstract: Symbols are to be recovered from signals received in a shared spectrum. Codes of the signals received in the shared spectrum are processed using a block Fourier transform (FT), producing a code block diagonal matrix. A channel response of the received signals is estimated. The channel response is extended and modified to produce a block circulant matrix and a block FT is taken, producing a channel response block diagonal matrix. The code block diagonal matrix is combined with the channel response block diagonal matrix. The received signals are sampled and processed using the combined code block diagonal matrix and the channel response block diagonal matrix with a Cholesky algorithm. A block inverse FT is performed on a result of the Cholesky algorithm to produce spread symbols. The spread symbols are despread to recover symbols of the received signals.

    Abstract translation: 符号将从在共享频谱中接收的信号中恢复。 使用块傅里叶变换(FT)处理在共享频谱中接收的信号的码,产生码块对角矩阵。 估计接收信号的信道响应。 信道响应被扩展和修改以产生块循环矩阵,并采用块FT,产生信道响应块对角矩阵。 码块对角矩阵与信道响应块对角矩阵组合。 使用Cholesky算法使用组合码块对角矩阵和信道响应块对角矩阵对接收到的信号进行采样和处理。 对Cholesky算法的结果执行块反向FT以产生扩展符号。 扩展符号被解扩以恢复接收信号的符号。

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