公开(公告)号：US20040136316A1

公开(公告)日：2004-07-15

申请号：US10644361

申请日：2003-08-20

Applicant: InterDigital Technology Corporation

Inventor： Jaeyoung Kwak ,  John W. Haim ,  Ariela Zeira ,  Jung-Lin Pan

IPC: H04J011/00

CPC classification number: H04B1/71052 ,  H04B2201/70707

Abstract: K data signals, or bursts, are transmitted over a shared spectrum in a code division multiple access communication format. A combined signal is received and sampled over the shared spectrum, as a plurality of received vector versions. The combined signal includes the K transmitted data signals. A plurality of system matrices and an associated covariance matrix using codes and estimated impulse responses of the K data signals is produced. Each system matrix corresponds to a received vector version. The system and covariance matrices are extended and approximated as block circulant matrices. A diagonal matrix of each of the extended and approximated system and covariance matrices are determined by prime factor algorithm-fast Fourier transform (PFA-FFT) without division of the matrix. The received vector versions are extended. A product of the diagonal matrices and the extended received vector versions is taken. An inverse block discrete Fourier transform is performed by a PFA-FFT on a result of the product to produce the estimated data of the K data signals.

Abstract translation: K个数据信号或脉冲串以码分多址通信格式通过共享频谱发送。 组合信号在共享频谱上被接收和采样，作为多个接收的矢量版本。 组合信号包括K个发送的数据信号。 产生多个系统矩阵和使用K个数据信号的代码和估计的脉冲响应的相关协方差矩阵。 每个系统矩阵对应于接收到的矢量版本。 系统和协方差矩阵被扩展和近似为块循环矩阵。 每个扩展和近似的系统和协方差矩阵的对角矩阵由质数因子算法 - 快速傅里叶变换（PFA-FFT）确定，而不分割矩阵。 收到的矢量版本被扩展。 采用对角矩阵和扩展接收向量版本的乘积。 通过PFA-FFT对乘积的结果执行逆块离散傅里叶变换，以产生K个数据信号的估计数据。

公开(公告)号：US20030198210A1

公开(公告)日：2003-10-23

申请号：US10417586

申请日：2003-04-17

Applicant: InterDigital Technology Corporation

Inventor： John W. Haim

IPC: H04B007/216

CPC classification number: H04B7/2618 ,  H04B1/70735 ,  H04B7/2628 ,  H04B2201/70705 ,  H04J13/14

Abstract: In a communication station, such as a UE or Node B of a 3GPP system, where channelization coded signals are received on physical channels of at least one coded composite transport channel (CCTrCh) within timeslots of a system time frame, the actual number of channelization codes transmitted for the CCTrCh within a system time frame is determined. The transmitted channelization codes are then identified by performing a channelization code identification algorithm based on the determined number.

Abstract translation: 在诸如系统时间帧的时隙内的至少一个编码复合传输信道（CCTrCh）的物理信道上接收信道化编码信号的通信站（例如3GPP系统的UE或节点B）中，实际的信道化数目 确定在系统时间范围内为CCTrCh发送的代码。 然后通过基于确定的数量执行信道化码识别算法来识别发送的信道化码。

公开(公告)号：US20030153275A1

公开(公告)日：2003-08-14

申请号：US10209398

申请日：2002-07-30

Applicant: InterDigital Technology Corporation

Inventor： Hyun-Seok Oh ,  Kalpendu R. Pasad ,  John W. Haim

IPC: H04Q007/20

CPC classification number: H04L1/20 ,  H04W56/0045

Abstract: A system and method of wireless communication determines received signal timing deviation which is used to generate a timing advance for adjusting User Equipment (UE) transmissions. An adaptive threshold for measuring the timing deviation is set based on the energy level of received UE signals. UE signal samples which exceed the threshold are evaluated to determine timing deviation.

Abstract translation: 无线通信的系统和方法确定用于生成用于调整用户设备（UE）传输的定时提前的接收信号定时偏差。 用于测量定时偏差的自适应阈值是基于接收到的UE信号的能级来设定的。 评估超过阈值的UE信号样本以确定时序偏差。

公开(公告)号：US20020115468A1

公开(公告)日：2002-08-22

申请号：US10077077

申请日：2002-02-15

Applicant: InterDigital Technology Corporation

Inventor： John W. Haim

IPC: H04B007/00

CPC classification number: H04W52/146 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/24 ,  H04W52/241 ,  H04W52/242 ,  H04W52/265 ,  H04W52/267 ,  H04W52/362

Abstract: A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal having a rate N(t) and in which the user data signal having rate N(t) is converted into a transmission data signal having a faster rate M(t) for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of N(t)/M(t) such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change. Preferably, the user data signal having rate N(t) is converted into the transmission data signal having the faster rate M(t) by repeating selected data bits whereby the energy per bit to noise spectrum density ratio is increased in the transmission data signal.