公开(公告)号：US20040185866A1

公开(公告)日：2004-09-23

申请号：US10768312

申请日：2004-01-30

Applicant: InterDigital Technology Corporation

Inventor： Stephen E. Terry ,  Stephen G. Dick ,  James M. Miller ,  Eldad Zeira ,  Ariela Zeira

IPC: H04Q007/20

CPC classification number: H04W72/087 ,  H04B17/24 ,  H04B17/309 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04W72/042 ,  H04W72/085 ,  H04W72/10 ,  H04W72/1231 ,  H04W72/1278

Abstract: A wireless digital communication system includes a base station in communication with a plurality of user equipment mobile terminals (UEs). The system prioritizes the forwarding of blocks of downlink data to designated ones of the UEs. The system employs adaptive modulation and coding (AM&C) to achieve improved radio resource utilization and provides optimum data rates for user services. Blocks of downlink (DL) data are received by the base station which requests downlink (DL) channel quality measurements only from those mobile terminals (UEs) with pending downlink transmissions. The UEs respond to the request by measuring and reporting DL channel quality to the base station, which then allocates resources such that the UEs will make best use of radio resources. The base station notifies the UEs of the physical channel allocation indicating the modulation/coding rate and allocated slots followed by transmission of blocks of downlink data which are transmitted to the UEs.

Abstract translation: 无线数字通信系统包括与多个用户设备移动终端（UE）通信的基站。 该系统将下行链路数据块的转发优先于指定的UE。 该系统采用自适应调制和编码（AM＆C）来实现改善的无线电资源利用率，并为用户提供最佳的数据速率。 下行链路（DL）数据块由仅从具有未决下行链路传输的那些移动终端（UE）请求下行链路（DL）信道质量测量的基站接收。 UE通过向基站测量和报告DL信道质量来响应该请求，该基站然后分配资源，使得UE将充分利用无线电资源。 基站向UE发送表示调制/编码率的物理信道分配，并且向UE发送下行链路数据块的发送。

公开(公告)号：US20040185862A1

公开(公告)日：2004-09-23

申请号：US10768313

申请日：2004-01-30

Applicant: InterDigital Technology Corporation

Inventor： Stephen E. Terry ,  Stephen G. Dick ,  James M. Miller ,  Eldad Zeira ,  Ariela Zeira

IPC: H04Q007/20

CPC classification number: H04W72/087 ,  H04B17/24 ,  H04B17/309 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04W72/042 ,  H04W72/085 ,  H04W72/10 ,  H04W72/1231 ,  H04W72/1278

Abstract: Data transmission is optimized in a wireless digital communication system including a base station and a plurality of user equipment mobile terminals (UEs). Adaptive modulation and coding (AM&C) is employed to achieve improved radio resource utilization and provide optimum data rates for user services. Blocks of downlink (DL) data are received by the base station which requests downlink DL channel quality measurements only from those UEs with pending downlink transmissions. The UEs respond to the request by measuring and reporting DL channel quality to the base station, which then allocates resources such that the UEs will make best use of radio resources. The base station notifies the UEs of the physical channel allocation indicating the modulation/coding rate and allocated slots followed by transmission of blocks of downlink data which are transmitted to the UEs.

Abstract translation: 在包括基站和多个用户设备移动终端（UE）的无线数字通信系统中优化数据传输。 采用自适应调制和编码（AM＆C）来实现改进的无线电资源利用，并为用户提供最佳的数据速率。 下行链路（DL）数据块由仅从具有未决下行链路传输的那些UE请求下行链路DL信道质量测量的基站接收。 UE通过向基站测量和报告DL信道质量来响应该请求，该基站然后分配资源，使得UE将充分利用无线电资源。 基站向UE发送表示调制/编码率的物理信道分配，并且向UE发送下行链路数据块的发送。

公开(公告)号：US20040141467A1

公开(公告)日：2004-07-22

申请号：US10755649

申请日：2004-01-12

Applicant: InterDigital Technology Corporation

Inventor： Ariela Zeira ,  Sung-Hyuk Shin

IPC: H04L001/00 ,  H04L012/26

CPC classification number: H04W52/10 ,  H04B2201/709709 ,  H04W52/24 ,  H04W52/242 ,  H04W52/246 ,  H04W52/248

Abstract: A transmission power level for a user equipment in a wireless time division duplex communication system using code division multiple access is determined. An interference level is measured. A pathloss estimate is determined. A long term average of pathloss estimates is determined. A first weighting factor, null, is determined by the determined pathloss estimate, producing a weighted pathloss estimate. (1nullnull) is multiplied to the determined long term average of pathloss estimates, producing a weighted long term pathloss estimate. A transmission power level of the user equipment is determined by adding the weighted pathloss estimate to the weighted long term pathloss estimate to the measured interference level to a target signal to interference ratio to a constant value.

Abstract translation: 确定使用码分多址的无线时分双工通信系统中的用户设备的发送功率电平。 测量干扰电平。 确定路径损耗估计。 确定路径损耗估计的长期平均值。 第一加权因子α由确定的路径损耗估计确定，产生加权路径损耗估计。 （1-α）乘以确定的路径损耗估计的长期平均值，产生加权的长期路径损耗估计。 通过将加权的路径损耗估计与加权的长期路径损耗估计相加到所测量的干扰电平，将目标信号干扰比加到常数值来确定用户设备的发射功率电平。

公开(公告)号：US20040116122A1

公开(公告)日：2004-06-17

申请号：US10666374

申请日：2003-09-18

Applicant: InterDigital Technology Corporation

Inventor： Eldad Zeira ,  Ariela Zeira

IPC: H04Q007/20

CPC classification number: H04L1/0001 ,  H04B1/71075 ,  H04B7/022 ,  H04B2201/70701 ,  H04B2201/70702

Abstract: At least one desired communication signal is received by a receiver. The at least one desired communication signal is transmitted in a wireless format of a cell. A plurality of communication signals are received. Communication signals are selected from the plurality. The selected communication signals include each desired communication signal and at least one communication signal originating from another cell. A channel estimate is produced for each selected communication signal. Data is jointly detected for the selected communication signals.

Abstract translation: 至少一个期望的通信信号被接收机接收。 以小区的无线格式发送所述至少一个期望的通信信号。 接收多个通信信号。 从多个选择通信信号。 所选择的通信信号包括每个期望的通信信号和源自另一小区的至少一个通信信号。 为每个所选择的通信信号产生信道估计。 对所选择的通信信号共同检测数据。

公开(公告)号：US20030223355A1

公开(公告)日：2003-12-04

申请号：US10308473

申请日：2002-12-03

Applicant: InterDigital Technology Corporation

Inventor： Jung Lin Pan ,  Younglok Kim ,  Ariela Zeira

IPC: H04J011/00

CPC classification number: H04L25/0244 ,  H04L25/0224

Abstract: A plurality of communication bursts are transmitted substantially simultaneously in a time slot of a time division duplex/code division multiple access communication system. The communication system has a maximum number of K midamble shifts. Each burst has an assigned midamble. Each midamble is a shifted version of a basic midamble code having a period of P. A combined signal is received. The combined signal includes a received version of each of the communication burst's midambles. A P by P square circulant matrix is constructed including the K midamble shifts. A channel response is determined for each of the K midamble shifts using a prime factor algorithm (PFA) discrete Fourier transform (DFT) algorithm, the received combined signal and the P by P square circulant matrix. The PFA DFT algorithm has a plurality of stages. Each stage has P inputs.

Abstract translation: 在时分双工/码分多址通信系统的时隙中基本上同时发送多个通信脉冲串。 通信系统具有最大数量的K个中间码位移。 每个突发都有一个指定的中间码。 每个中间码是具有周期为P的基本中间码的移位版本。接收组合信号。 组合信号包括每个通信突发的中间码的接收版本。 构造P平方循环矩阵的P包括K个中间码位移。 使用素数因子算法（PFA）离散傅里叶变换（DFT）算法，接收的组合信号和P乘P平方循环矩阵，为每个K中间码位移确定信道响应。 PFA DFT算法具有多个阶段。 每个阶段都有P个输入。

公开(公告)号：US20030152062A1

公开(公告)日：2003-08-14

申请号：US10279365

申请日：2002-10-24

Applicant: InterDigital Technology Corporation

Inventor： Stephen Terry ,  Ariela Zeira ,  Nader Bolourchi

IPC: H04Q007/00

CPC classification number: H04L1/1845 ,  H04L1/0003 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/1819 ,  H04L1/1874

Abstract: Data of a transport block set is to be transmitted in a wireless communication system. The wireless communication system uses adaptive modulation and coding and has a physical layer hybrid automatic repeat request mechanism. Segmentation information for potential segmentation of the transport block set is provided. The transport block set is transmitted with a first specified modulation and coding scheme. The transport bock set is received and whether the received transport block set is determined to meet a specified quality. When the specified quality is not met, a repeat request is transmitted. The first specified modulation and coding set is changed to a second specified modulation and coding set. In response to the repeat request, the transmit block set is segmented into a plurality of segments supported by the second specified modulation and coding set in accordance with the provided segmentation information. The segments are transmitted and at least two of the segments are transmitted separately. The transmitted segments are received. The segmentation process may be applied more than once for a particular TBS transmission.

Abstract translation: 传输块集合的数据将在无线通信系统中发送。 无线通信系统采用自适应调制编码，具有物理层混合自动重传请求机制。 提供了用于传输块集合的潜在分段的分段信息。 以第一规定的调制和编码方案发送传输块集。 接收传输块集，并测试接收的传输块集合是否满足指定的质量。 当不满足指定的质量时，会发送重复请求。 第一规定的调制编码组被改变为第二规定的调制编码集。 响应于重复请求，发送块集合根据所提供的分段信息被分割成由第二指定的调制和编码集支持的多个分段。 传送段，并且至少两个段被单独传送。 传送的段被接收。 对于特定的TBS传输，分段处理可以被多次应用。

公开(公告)号：US20030054849A1

公开(公告)日：2003-03-20

申请号：US10036118

申请日：2001-12-26

Applicant: InterDigital Technology Corporation

Inventor： Chang-Soo Koo ,  Ariela Zeira ,  Donald Grieco ,  Sung-Hyuk Shin

IPC: H04B007/00

CPC classification number: H04W52/228 ,  H04W52/08 ,  H04W52/12 ,  H04W52/143 ,  H04W52/146 ,  H04W52/225 ,  H04W52/24

Abstract: The present invention is a system and method which controls outer loop transmit power for transmission power of an uplink/downlink communication in a spread spectrum time division communication. The system receives a communication from a base station and determines an error rate on the received communication. The system then distinguishes between static and dynamic channels, produces a static adjustment value, and characterizes the dynamic channels to generate a dynamic adjustment value. The target power level is then adjusted by the static and dynamic adjustment values, setting the transmission power level.

公开(公告)号：US20030021249A1

公开(公告)日：2003-01-30

申请号：US10174121

申请日：2002-06-18

Applicant: InterDigital Technology Corporation

Inventor： Younglok Kim ,  Jung-Lin Pan ,  Ariela Zeira ,  Alexander Reznik

IPC: H04B007/216

CPC classification number: H04B1/71052 ,  H04B1/7105 ,  H04B2201/70703 ,  H04B2201/70705

Abstract: A plurality of communication signals have differing spreading codes. Each communication has an associated code comprising chips. For each chip of each communication, a vector of that chip convolved with an impulse response is produced. For each communication, support blocks comprising the chip vectors are produced. A number of the chip vectors in a support block is based on that communication's spreading factor. A system response matrix is assembled. The system response matrix has symbol sub-matrices. Each symbol sub-matrix comprises a support block from each communication. Data of the communications is detected using the symbol response matrix.

Abstract translation: 多个通信信号具有不同的扩展码。 每个通信具有包括芯片的相关代码。 对于每个通信的每个芯片，产生与脉冲响应卷积的该芯片的矢量。 对于每个通信，产生包括芯片向量的支持块。 支持块中的多个码片向量基于该通信的扩频因子。 组合系统响应矩阵。 系统响应矩阵具有符号子矩阵。 每个符号子矩阵包括来自每个通信的支持块。 使用符号响应矩阵检测通信的数据。

公开(公告)号：US20020191577A1

公开(公告)日：2002-12-19

申请号：US10004370

申请日：2001-11-01

Applicant: InterDigital Technology Corporation

Inventor： Jung-Lin Pan ,  Ariela Zeira

IPC: H04B007/216

CPC classification number: H04B1/71052 ,  H04B1/7105 ,  H04B2201/70707

Abstract: 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.

Abstract translation: 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。 从基于傅立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：US20020145989A1

公开(公告)日：2002-10-10

申请号：US10052943

申请日：2001-11-07

Applicant: InterDigital Technology Corporation

Inventor： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mini Misra

IPC: H04B007/216

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A transmitter site transmits a plurality of data signals over a shared spectrum in a code division multiple access communication system. Each transmitted data signal experiences a similar channel response. A combined signal of the transmitted data signals is received. The combined signal is sampled at a multiple of the chip rate. The channel response for the combined signal is determined. A first element of a spread data vector is determined using the combined signal samples and the estimated channel response. Using a factor from the first element determination, remaining elements of the spread data vector are determined. The data of the data signals is determined using the determined elements of the spread data vector.

Abstract translation: 发射机站在码分多址通信系统中通过共享频谱发送多个数据信号。 每个发送的数据信号经历类似的信道响应。 接收发送的数据信号的组合信号。 组合信号以芯片速率的倍数进行采样。 确定组合信号的信道响应。 使用组合的信号样本和估计的信道响应来确定扩展数据向量的第一元素。 使用来自第一元素确定的因子，确定扩展数据向量的剩余元素。 使用所确定的扩展数据矢量的元素来确定数据信号的数据。