公开(公告)号：US20070064665A1

公开(公告)日：2007-03-22

申请号：US11507712

申请日：2006-08-21

申请人： Guodong Zhang ,  Jung-Lin Pan ,  Yingming Tsai

发明人： Guodong Zhang ,  Jung-Lin Pan ,  Yingming Tsai

IPC分类号： H04J1/00

CPC分类号： H04W72/1226 ,  H04L1/188 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/023 ,  H04L27/2602 ,  H04W8/26 ,  H04W52/08 ,  H04W52/146 ,  H04W52/16 ,  H04W52/248 ,  H04W52/48 ,  H04W52/50 ,  H04W72/02 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/004 ,  H04W74/0833 ,  H04W74/0866

摘要： A method and apparatus for accessing a contention-based uplink random access channel (RACH) in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. A wireless transmit/receive unit (WTRU) randomly selects a RACH subchannel and a signature among a plurality of available RACH subchannels and signatures. The WTRU transmits a preamble using the selected signature via the selected RACH subchannel at a predetermined or computed transmission power. A base station monitors the RACH to detect the preamble and sends an acquisition indicator (AI) to the WTRU when a signature is detected on the RACH. When receiving a positive acknowledgement, the WTRU sends a message part to the base station. If receiving a negative acknowledgement or no response, the WTRU retransmits the preamble.

摘要翻译： 公开了一种在单载波频分多址（SC-FDMA）系统中访问基于竞争的上行随机接入信道（RACH）的方法和装置。 无线发射/接收单元（WTRU）在多个可用的RACH子信道和签名中随机选择RACH子信道和签名。 WTRU以预定或计算的传输功率经由所选择的RACH子信道使用所选择的签名来发送前导码。 当在RACH上检测到签名时，基站监视RACH以检测前导码，并将捕获指示符（AI）发送到WTRU。 当接收到肯定确认时，WTRU向基站发送消息部分。 如果接收到否定的确认或没有响应，则WTRU重传前导码。

公开(公告)号：US20070049309A1

公开(公告)日：2007-03-01

申请号：US11477279

申请日：2006-06-29

申请人： Jung-Lin Pan ,  Stephen Terry ,  Guodong Zhang ,  Peter Wang

发明人： Jung-Lin Pan ,  Stephen Terry ,  Guodong Zhang ,  Peter Wang

IPC分类号： H04Q7/20 ,  H04B7/00

CPC分类号： H04W72/1289 ,  H04W72/1268

摘要： A method and apparatus for processing enhanced uplink scheduling grants are disclosed. A wireless transmit/receive unit (WTRU) detects an absolute grant (AG) and a relative grant (RG). Once the WTRU detects an AG or a RG, a new serving grant (SG) is generated and a hybrid automatic repeat request process may be activated or deactivated depending on whether the received AG is a primary AG or a secondary AG, whether a scheduling mode is a primary AG mode or a secondary AG mode, whether an AG value is set to “INACTIVE” and whether a transmission time interval is 2 ms or 10 ms. A Node-B may send a secondary AG to the WTRU before switching from a primary AG mode to a secondary AG mode and may send the secondary AG only if there is no out-of-date secondary AG exists, which may be detected by implementing a time threshold.

摘要翻译： 公开了一种用于处理增强的上行链路调度许可的方法和装置。 无线发射/接收单元（WTRU）检测绝对授权（AG）和相对授权（RG）。 一旦WTRU检测到AG或RG，则生成新的服务授权（SG），并且可以根据所接收的AG是主AG还是辅助AG来激活或去激活混合自动重传请求过程，无论是调度模式 是主AG模式还是辅助AG模式，AG值是否设置为“INACTIVE”，传输时间间隔是2ms还是10ms。 节点B可以在从主AG模式切换到辅助AG模式之前向WTRU发送辅助AG，并且只有当没有过期的次级AG存在时才能发送次级AG，这可以通过实现来检测 时间阈值。

公开(公告)号：US20070047512A1

公开(公告)日：2007-03-01

申请号：US11459785

申请日：2006-07-25

申请人： Guodong Zhang ,  Jung-Lin Pan ,  Yingming Tsai

发明人： Guodong Zhang ,  Jung-Lin Pan ,  Yingming Tsai

IPC分类号： H04J1/00

CPC分类号： H04W36/30 ,  H04B2201/70702 ,  H04L1/0026 ,  H04L5/023 ,  H04L27/2601 ,  H04W36/08 ,  H04W92/04

摘要： A method and apparatus for selecting a serving cell/Node-B in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. For intra-Node-B serving cell selection, a serving Node-B measures channel quality indicators (CQIs) of each subcarrier block in an uplink of each cell controlled by the serving Node-B and selects a new serving cell based on the CQIs. The serving Node-B reports the selected new serving cell to a wireless transmit/receive unit (WTRU). For inter-Node-B serving cell selection, each of a plurality of Node-Bs measures a CQI of each of a plurality of subcarrier blocks in an uplink transmission in each cell controlled by each Node-B and forwards the CQIs to a serving cell selection entity. The serving cell selection entity selects a new serving cell/Node-B based on the CQIs. The serving cell selection entity may be a centralized access gateway, a current serving Node-B or a WTRU.

摘要翻译： 公开了一种在单载波频分多址（SC-FDMA）系统中选择服务小区/节点B的方法和装置。 对于节点间服务小区选择，服务节点B测量由服务节点B控制的每个小区的上行链路中的每个子载波块的信道质量指示符（CQI），并且基于CQI选择新的服务小区。 服务节点B将所选择的新服务小区报告给无线发射/接收单元（WTRU）。 对于节点间服务小区选择，多个节点B中的每一个测量由每个节点B控制的每个小区中的上行链路传输中的多个子载波块中的每一个的CQI，并将CQI转发到服务小区 选择实体。 服务小区选择实体基于CQI选择新的服务小区/节点B。 服务小区选择实体可以是集中接入网关，当前服务节点B或WTRU。

公开(公告)号：US07133412B2

公开(公告)日：2006-11-07

申请号：US10080140

申请日：2002-02-21

申请人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

发明人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

IPC分类号： H04B7/216

CPC分类号： H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

摘要： A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A cross correlation matrix is determined using the estimated channel response. A subblock of the cross correlation matrix is selected. A Cholesky factor for the subblock is determined. The Cholesky factor is extended. The spread data vector is determined using the extended Cholesky factor, a version of the channel response and the samples. Data of the data signals is estimated using the spread data vector.

公开(公告)号：US07133394B2

公开(公告)日：2006-11-07

申请号：US10080045

申请日：2002-02-21

申请人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

发明人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

IPC分类号： H04B7/216

CPC分类号： H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

摘要： A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A cross correlation matrix is determined using the estimated channel response. The spread data vector is determined using order recursions by determining a first spread data estimate using an element from the cross correlation matrix and recursively determining further estimates using additional elements of the cross correlation matrix. Data of the data signals is estimated using the spread data vector.

公开(公告)号：US07110386B2

公开(公告)日：2006-09-19

申请号：US10080212

申请日：2002-02-21

申请人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

发明人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

IPC分类号： H04B7/216

CPC分类号： H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

摘要： A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over a shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A first element of a spread data vector is determined using the combined signal samples and the estimated channel response. A factor from the first element determination is used to determine remaining elements of the spread data vector. Data of the data signals is estimated using the determined elements of the spread data vector.

公开(公告)号：US07110384B2

公开(公告)日：2006-09-19

申请号：US10080123

申请日：2002-02-21

申请人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

发明人： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

IPC分类号： H04V7/216

CPC分类号： H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

摘要： A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated as a channel response matrix at the multiple of the chip rate. A padded version of a spread data vector of a size corresponding to the multiple chip rate using a column of the channel response matrix, the estimated channel response matrix, the samples and a fourier transform. The spread data vector is estimated by eliminating elements of the padded version so that the estimated spread data vector is of a size corresponding to the chip rate.

公开(公告)号：US20060126575A1

公开(公告)日：2006-06-15

申请号：US11347340

申请日：2006-02-03

申请人： Jung-Lin Pan ,  Ariela Zeira

发明人： Jung-Lin Pan ,  Ariela Zeira

IPC分类号： H04B7/216 ,  H04B7/212

CPC分类号： H04W72/0446 ,  H04B7/2618 ,  H04L5/0073 ,  H04L5/14 ,  H04W52/143 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082 ,  H04W72/1268 ,  H04W72/1273

摘要： A hybrid time division duplex/code division multiple access communication system comprises a radio network controller coupled to a plurality of Node-Bs. The radio network controller comprises a resource allocation device for providing each Node-B with a list of timeslots that the Node-B can use to assign uplink timeslots and downlink timeslots. The list of timeslots does not include all potential timeslots as being assignable for uplink communications and does not include all potential timeslots as being assignable for downlink communications. Each of the plurality of Node-Bs comprises an assignment device for dynamically assigning uplink and downlink communications to users of the Node-B in response to the assignable uplink and downlink timeslots of the list

摘要翻译： 混合时分双工/码分多址通信系统包括耦合到多个节点B的无线电网络控制器。 无线电网络控制器包括用于向每个节点B提供节点B可以用于分配上行链路时隙和下行链路时隙的时隙的列表的资源分配装置。 时隙列表不包括可分配给上行链路通信的所有潜在时隙，并且不包括所有可能的时隙作为下行链路通信可分配。 多个节点B中的每一个包括分配装置，用于响应于列表的可分配的上行链路和下行链路时隙来动态地向节点B的用户分配上行链路和下行链路通信

公开(公告)号：US07027489B2

公开(公告)日：2006-04-11

申请号：US10004370

申请日：2001-11-01

申请人： Jung-Lin Pan ,  Ariela Zeira

发明人： Jung-Lin Pan ,  Ariela Zeira

IPC分类号： H04B1/69

CPC分类号： H04B1/71052 ,  H04B1/7105 ,  H04B2201/70707

摘要： Data is to be estimated from a received plurality of data signals in a code division multiple access communication system. The data signals are transmitted in a shared spectrum at substantially a same time. A combined signal of the transmitted data signals are received over the shared spectrum and sampled. A channel response for the transmitted data signals is estimated. Data of the data signals is estimated using the samples and the estimated channel response. The data estimation uses a Fourier Transform based data estimating approach. An error in the data estimation introduced from a circulant approximation used in the Fourier Transform based approach is iteratively reduced.

摘要翻译： 在码分多址通信系统中，从接收到的多个数据信号中估计数据。 数据信号在基本上同时在共享频谱中发送。 传输的数据信号的组合信号通过共享频谱接收并采样。 估计发送的数据信号的信道响应。 使用样本和估计的信道响应来估计数据信号的数据。 数据估计使用基于傅里叶变换的数据估计方法。 从基于傅里叶变换的方法中使用的循环近似引入的数据估计中的误差被迭代地减少。

公开(公告)号：US20060072518A1

公开(公告)日：2006-04-06

申请号：US11284254

申请日：2005-11-21

申请人： Jung-Lin Pan ,  Ariela Zeira

发明人： Jung-Lin Pan ,  Ariela Zeira

IPC分类号： H04B1/707 ,  H04B7/216

CPC分类号： H04W72/082 ,  H04B1/7103 ,  H04B2201/709709 ,  H04J13/16 ,  H04W16/14 ,  H04W24/10 ,  H04W52/0216 ,  H04W52/0219 ,  H04W72/0446 ,  H04W72/0466 ,  H04W74/04 ,  Y02D70/1242 ,  Y02D70/40

摘要： A code power measurement device for measuring an interference level with respect to a desired code potentially used in a code division multiple access communication system includes an input, a correlating device, and a power measurement device. The input is configured to receive a signal corresponding to a received radio frequency spectrum potentially used by the desired code. The correlating device correlates the received signal with the desired code. The power measurement device measures a power level of the correlated signal.

摘要翻译： 一种代码功率测量装置，用于测量相对于码分多址通信系统中潜在使用的期望码的干扰电平，包括输入，相关装置和功率测量装置。 输入被配置为接收对应于期望代码潜在使用的接收到的无线电频谱的信号。 相关设备将接收的信号与期望的代码相关联。 功率测量装置测量相关信号的功率电平。