公开(公告)号：US20020080762A1

公开(公告)日：2002-06-27

申请号：US10082885

申请日：2002-02-26

Applicant: InterDigital Technology Corporation

Inventor： Ariela Zeira ,  Sung-Hyuk Shin

IPC: H04B007/216

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

Abstract: A user equipment (UE) employs weighted open loop power control by receiving a communication and measuring its received power level. Based on, in part, the received communication's power level and the communication's transmission power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the UE is based, in part, on weighting the path loss estimate in response to the estimate's quality.

Abstract translation: 用户设备（UE）通过接收通信并测量其接收到的功率电平来采用加权开环功率控制。 基于部分接收的通信的功率电平和通信的发送功率电平，确定路径损耗估计。 路径损耗估计的质量也被确定。 来自UE的通信的发射功率电平部分地基于响应于估计的质量对路径损耗估计进行加权。

公开(公告)号：US20040202233A1

公开(公告)日：2004-10-14

申请号：US10834321

申请日：2004-04-28

Applicant: InterDigital Technology Corporation

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

IPC: H04B001/707

CPC classification number: H04J13/0044 ,  H04B1/707 ,  H04B1/71052 ,  H04B1/71055 ,  H04B2201/70703 ,  H04B2201/70705

Abstract: A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.

Abstract translation: 接收多个通信信号。 每个通信信号具有相关代码。 至少两个通信信号具有不同的扩展因子。 相关代码具有扰码周期。 总系统响应矩阵具有块。 每个块具有长度M的一维和基于部分M的长度的另一维度和每个通信的扩展因子。 M基于扰码周期。 使用所构建的系统响应矩阵来接收所接收的多个通信信号的数据。

公开(公告)号：US20040185789A1

公开(公告)日：2004-09-23

申请号：US10768223

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: H04B007/00 ,  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 method for a plurality of user equipment mobile terminals (UEs) to communicate with a base station. Adaptive modulation and coding (AM&C) is used 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 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: 一种用于多个用户设备移动终端（UE）与基站进行通信的无线数字通信方法。 自适应调制和编码（AM＆C）用于实现改进的无线电资源利用并为用户服务提供最佳数据速率。 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：US20040141565A1

公开(公告)日：2004-07-22

申请号：US10622306

申请日：2003-07-18

Applicant: InterDigital Technology Corporation

Inventor： Jaeyoung Kwak ,  Jung-Lin Pan ,  Ariela Zeira

IPC: H04B007/02 ,  H04B007/10

CPC classification number: H04B1/71055 ,  H04B1/7093 ,  H04B1/71072 ,  H04B7/0854 ,  H04L1/06 ,  H04L25/0212 ,  H04L25/0226 ,  H04L25/03305 ,  H04L25/03318

Abstract: A plurality of data signals are received over an antenna array having a plurality of antenna elements. The data signals are transmitted over a shared spectrum in a wireless communication system. A signal having each of the data signals is received over each antenna element. The plurality of data signals are grouped into a plurality of groups. The received signals of the antenna elements are matched filtered for a first group of the plurality of groups, producing a matched filtered result. Data is jointly detected of the first group using the matched filtered result. An interference correction signal is constructed using the detected data for each antenna element. The interference cancelled result is subtracted from the received signal of each antenna element, producing an interference cancelled result for each antenna element. Data is successively detected for remaining groups using the interference cancelled result for each antenna element.

Abstract translation: 通过具有多个天线元件的天线阵列接收多个数据信号。 数据信号通过无线通信系统中的共享频谱传输。 在每个天线元件上接收具有每个数据信号的信号。 多个数据信号被分组成多个组。 天线元件的接收信号对于多个组中的第一组进行匹配滤波，产生匹配的滤波结果。 使用匹配的过滤结果联合检测第一组的数据。 使用每个天线元件的检测数据构建干扰校正信号。 从每个天线元件的接收信号中减去干扰消除结果，产生每个天线元件的干扰消除结果。 使用每个天线元件的干扰消除结果对剩余组连续检测数据。

公开(公告)号：US20040093178A1

公开(公告)日：2004-05-13

申请号：US10686388

申请日：2003-10-14

Applicant: InterDigital Technology Corporation

Inventor： Sung-Hyuk Shin ,  Ariela Zeira

IPC: G06F019/00

CPC classification number: H04B1/1027 ,  H04B17/336

Abstract: A method and apparatus for performing signal-to-interference ratio (SIR) estimation in wireless communications, using a demodulator output, such as a Rake output or a multi-user detection (MUD) receiver output. The demodulator output is fed into a SIR estimator to perform the SIR estimation based on estimated average signal power and estimated average effective interference power. The estimated average signal power is based on a minimum value function used for determining a minimum value between a median based average power value and a mean based average power value. The SIR estimator reduces bias effects on SIR estimation, and is applicable to BPSK and QPSK modulation schemes, as well as higher order modulation schemes such as 8-PSK and 16-QAM. A correction term is used as a function of the mean and median values to further mitigate the bias effect.

Abstract translation: 一种用于在无线通信中使用诸如Rake输出或多用户检测（MUD）接收机输出的解调器输出执行信号干扰比（SIR）估计的方法和装置。 解调器输出馈送到SIR估计器中，以基于估计的平均信号功率和估计的平均有效干扰功率来执行SIR估计。 估计的平均信号功率基于用于确定基于中值的平均功率值和平均功率值之间的最小值的最小值函数。 SIR估计器减少对SIR估计的偏差影响，并且适用于BPSK和QPSK调制方案，以及诸如8-PSK和16-QAM的更高阶调制方案。 使用校正项作为平均值和中值的函数，以进一步减轻偏见效应。

公开(公告)号：US20030219065A1

公开(公告)日：2003-11-27

申请号：US10154108

申请日：2002-05-22

Applicant: InterDigital Technology Corporation

Inventor： Ariela Zeira

IPC: H04B001/69

CPC classification number: H04J13/0044 ,  H04B1/707 ,  H04B1/7105 ,  H04B2201/70703

Abstract: One aspect of the invention simultaneously estimates data transmitted in a spread spectrum communication system using different spreading factors. A plurality of communication signals are received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The transmitted data is estimated as estimated symbols using codes of a uniform spreading factor. For data transmitted with a spreading factor other than the uniform spreading factor, the estimated symbols of that data is converted to symbols of the code of that data. Another aspect of the invention receives a spread spectrum communication signal having data spread using a plurality of spreading factors. The data of the communication is estimated as estimated symbols using codes of a uniform spreading factor. The estimated symbols are parsed into parcels, where the estimated symbols correspond to data transmitted with a same spreading factor. For parcels not of the uniform spreading factor, the estimated symbols are converted into symbols of the same spreading factor of that parcel.

Abstract translation: 本发明的一个方面同时估计在扩展频谱通信系统中使用不同扩展因子传输的数据。 接收多个通信信号。 每个通信信号具有相关代码。 至少两个通信信号具有不同的扩展因子。 使用均匀扩展因子的代码将发送的数据估计为估计符号。 对于以均匀扩展因子以外的扩频因子发送的数据，将该数据的估计符号转换为该数据的码的符号。 本发明的另一方面接收使用多个扩频因子具有数据扩展的扩展频谱通信信号。 使用均匀扩展因子的代码将通信的数据估计为估计符号。 估计的符号被解析成宗地，其中估计的符号对应于以相同扩展因子传输的数据。 对于不是均匀扩展因子的包裹，将估计符号转换为该包裹相同扩展因子的符号。

公开(公告)号：US20030219064A1

公开(公告)日：2003-11-27

申请号：US10153112

申请日：2002-05-22

Applicant: InterDigital Technology Corporation

Inventor： Jung-Lin Pan ,  Ariela Zeira

IPC: H04B001/69

CPC classification number: H04B1/7105 ,  H04B1/707

Abstract: Data is estimated of a plurality of received spread spectrum signals. The plurality of received communications are received in a shared spectrum. The received communications are sampled to produce a received vector. The received vector is processed to produce a plurality of segments. Each segment is processed separately to estimate data of the received communications.

Abstract translation: 估计多个接收的扩频信号的数据。 多个接收到的通信在共享频谱中被接收。 接收到的通信被采样以产生接收的向量。 处理所接收的矢量以产生多个段。 每个段被单独处理以估计接收到的通信的数据。

公开(公告)号：US20030153276A1

公开(公告)日：2003-08-14

申请号：US10279393

申请日：2002-10-24

Applicant: InterDigital Technology Corporation

Inventor： Stephen Terry ,  Ariela Zeira ,  Nader Bolourchi

IPC: H04B001/00 ,  H04B007/00

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1845 ,  H04L1/1893 ,  H04L5/0055 ,  H04L27/2608 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/042

Abstract: Data of a time transmission interval is to be transmitted in a wireless communication system. The wireless communication system uses adaptive modulation and coding and has automatic repeat request mechanism. A transmission time interval has a plurality of transport block sets. The transport block sets are transmitted with a first specified modulation and coding scheme. Each transport block set is received and a determination is made as to whether the transport block sets meet a specified quality. When the specified quality is not met, a repeat request is transmitted. The specified modulation and coding scheme is changed to a second specified modulation and coding scheme that may support a reduced number of TBS's within the transmission time interval. In response to the repeat request, at least one of the transport block sets is retransmitted. The retransmitted transport block set is received. The retransmitted transport block set may be combined with a corresponding previously received transport block set.

Abstract translation: 在无线通信系统中发送时间传输间隔的数据。 无线通信系统采用自适应调制编码，具有自动重传请求机制。 传输时间间隔具有多个传输块集合。 以第一规定的调制和编码方案发送传输块集合。 接收每个传输块集合，并且确定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。 指定的调制和编码方案被改变为可以在传输时间间隔内支持减少数量的TBS的第二规定调制和编码方案。 响应于重复请求，重发传输块集中的至少一个。 接收重传的传输块集合。 重传的传输块集可以与相应的先前接收的传输块组合。

公开(公告)号：US20030043767A1

公开(公告)日：2003-03-06

申请号：US10077509

申请日：2002-02-15

Applicant: InterDigital Technology Corporation

Inventor： Jung-Lin Pan ,  Parthapratim De ,  Ariela Zeira

IPC: H04B007/216

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 H 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恢复数据H.

公开(公告)号：US20030031145A1

公开(公告)日：2003-02-13

申请号：US10152104

申请日：2002-05-21

Applicant: InterDigital Technology Corporation

Inventor： Eldad Zeira ,  Stephen E. Terry ,  Ariela Zeira

IPC: H04B007/216

CPC classification number: H04W52/367 ,  H04W52/58 ,  H04W72/08

Abstract: A UE system implements dynamic link adaptation by adding or changing control information to notify a receiver which timeslots and codes are currently active and which timeslots should be avoided. The UE provides synchronization such that the receiver knows which timeslots and codes the UE has used to map the coded composite transport channel onto physical channels. The UE attempts to avoid the timeslots which are experiencing transmission difficulties, while attempting to utilize the timeslots which are not experiencing transmission problems.

Abstract translation: UE系统通过添加或改变控制信息来实现动态链路自适应，以通知接收机哪些时隙和代码当前是活动的，哪些时隙应该被避免。 UE提供同步，使得接收机知道UE已经使用哪个时隙和码来将经编码的复合传输信道映射到物理信道上。 在尝试利用未经历传输问题的时隙的情况下，UE尝试避免正在经历传输困难的时隙。