公开(公告)号：WO2014085710A1

公开(公告)日：2014-06-05

申请号：PCT/US2013/072410

申请日：2013-11-27

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： YANG, Rui ,  KAZAKEVICH, Leonid ,  LI, Jialing ,  BALA, Erdem ,  KEARNEY, Kenneth ,  LU, I-Tai ,  FANG, Juan ,  YOU, Zihao

IPC: H04L5/00 ,  H04L27/00

CPC classification number: H04L27/2627 ,  H04L5/0066 ,  H04L27/0008 ,  H04L27/2631 ,  H04L27/264 ,  H04W72/04

Abstract: A resource block (RB)-based multicarrier modulation (MCM) transmitter and receiver structure for spectral agile systems are disclosed. The transmitter and the receiver are capable of sharing opportunistically available and non-contiguous channels with other users. The RB-MCM partitions the available spectrum, contiguous or non-contiguous, into multiple RBs (same or different sizes), applies a baseband MCM or single carrier modulation, or coded single carrier or multicarrier schemes in each RB with a type of spectral leakage reduction technique, and applies RB modulation for each RB to modulate the signal from baseband to the frequency band of that RB. At the receiver, the received signal may be filtered and RB demodulation may be applied to put each RB signal in baseband and a baseband multicarrier or single carrier or coded single carrier or coded multicarrier demodulation may be applied to each RB signal. Different RBs may use different modulation schemes.

Abstract translation: 公开了一种用于光谱敏捷系统的基于资源块（RB）的多载波调制（MCM）发射机和接收机结构。 发射机和接收机能够与其他用户共享机会性可用和不连续的信道。 RB-MCM将可用频谱（连续或不连续）划分成多个RB（相同或不同的大小），在每个RB中应用基带MCM或单载波调制或编码单载波或多载波方案，具有频谱泄漏的类型 并且对每个RB应用RB调制以调制从基带到该RB的频带的信号。 在接收机处，可以对接收到的信号进行滤波，并且可以应用RB解调来将每个RB信号置于基带中，并且可以对每个RB信号应用基带多载波或单载波或编码单载波或编码多载波解调。 不同的RB可以使用不同的调制方案。

公开(公告)号：WO2014204544A3

公开(公告)日：2014-12-24

申请号：PCT/US2014/032128

申请日：2014-03-28

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： YOU, Zihao ,  FANG, Juan ,  LU, I-Tai ,  YANG, Rui ,  LI, Jialing ,  BALA, Erdem

IPC: H04L25/03 ,  H04L27/26

Abstract: Systems, methods, and instrumentalities are disclosed to utilize a combined precoding technique in a multicarrier modulation system to reduce out-of-band power leakage. A combined precoder may be used to precede a symbol stream using a matrix-based precoding component to generate a first precoded symbol stream. The combined precoder may then be used to apply a perturbation to the first precoded symbol stream to generate a second precoded symbol stream.

公开(公告)号：WO2014123926A1

公开(公告)日：2014-08-14

申请号：PCT/US2014/014717

申请日：2014-02-04

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： BALA, Erdem ,  YANG, Rui ,  LI, Jialing ,  COHEN, Daniel R.

IPC: H04L25/03 ,  H04L27/26

CPC classification number: H04L25/03834 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2634 ,  H04L27/2649

Abstract: A method and apparatus for performing pulse shaping using different windowing functions for different sub-bands of a transmission is disclosed. A method for use in a wireless transmit/receive unit (WTRU) may include the WTRU receiving data symbols. The WTRU may assign the data symbols to a plurality of subcarriers in different sub-bands and map the data symbols on each of the plurality of subcarriers in the different sub-bands to a plurality of corresponding subcarriers of an inverse fast Fourier transform (IFFT) block. The WTRU may take an IFFT of the block for each sub-band and pad an output of the IFFT block with a prefix and a postfix for each sub-band. The WTRU may apply a windowing function to an output of the padding for each sub-band and form a composite signal for transmission by adding an output of the windowing of each sub-band. The WTRU may transmit the signal.

Abstract translation: 公开了一种用于使用用于传输的不同子带的不同窗函数进行脉冲整形的方法和装置。 在无线发射/接收单元（WTRU）中使用的方法可以包括WTRU接收数据符号。 WTRU可以将数据符号分配给不同子带中的多个子载波，并将不同子带中的多个子载波中的每一个上的数据符号映射到快速傅里叶逆变换（IFFT）的多个对应的子载波， 块。 WTRU可以针对每个子带采取该块的IFFT，并且对于每个子带填充IFFT块的输出，并具有前缀和后缀。 WTRU可以对每个子带的填充的输出应用加窗函数，并且通过添加每个子带的窗口的输出来形成用于发送的复合信号。 WTRU可以发送信号。

公开(公告)号：WO2014113754A1

公开(公告)日：2014-07-24

申请号：PCT/US2014/012201

申请日：2014-01-20

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： FANG, Juan ,  LU, I-tai ,  LI, Jialing ,  YANG, Rui ,  YOU, Zihao

IPC: H04L25/03 ,  H04L27/26

CPC classification number: H04L25/03834 ,  H04L27/2626

Abstract: Systems, methods, and instrumentalities are disclosed for selecting a precoding matrix for orthogonal frequency division multiplexing (OFDM) transmission. A wireless transmit/receive unit (WTRU) may determine a preceding matrix. The precoding matrix may be determined for a frequency band associated with a plurality of devices. A portion of the frequency band allocated to a device of the plurality of devices may be determined. A portion of the precoding matrix associated with the portion of the frequency band may be determined. Data may be sent using the portion of the preceding matrix. For example, the portion of the frequency band allocated to the given transmitter may be a plurality of OFDM subcarriers. The precoding matrix may be determined as a function of a number of devices and/or an available bandwidth of the frequency band. Spectral precoding applies to a set of K synchronized users and each spectrally precoded user spans the whole set of N subcarriers available to the K users. Since the users are synchronized, orthogonality between the N subcarriers and the users is maintained.

Abstract translation: 公开了用于选择用于正交频分复用（OFDM）传输的预编码矩阵的系统，方法和工具。 无线发射/接收单元（WTRU）可以确定先前的矩阵。 可以针对与多个设备相关联的频带来确定预编码矩阵。 可以确定分配给多个设备的设备的频带的一部分。 可以确定与频带的该部分相关联的一部分预编码矩阵。 可以使用前面的矩阵的部分来发送数据。 例如，分配给给定发射机的频带的部分可以是多个OFDM子载波。 可以根据设备的数量和/或频带的可用带宽来确定预编码矩阵。 频谱预编码适用于一组K个同步用户，每个频谱预编码的用户跨越可用于K个用户的整个N个子载波。 由于用户被同步，所以维持N个子载波和用户之间的正交性。

公开(公告)号：WO2015031075A1

公开(公告)日：2015-03-05

申请号：PCT/US2014/051228

申请日：2014-08-15

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： BALA, Erdem ,  YANG, Rui ,  LI, Jialing

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04J11/0023 ,  H04L5/0044 ,  H04L5/0062 ,  H04L27/264 ,  H04L27/2644

Abstract: The disclosure pertains to methods and apparatus for Faster than Nyquist (FTN) modulation schemes to increase throughput in multicarrier communication systems and wherein the latency problem inherent in filter bank multicarrier systems (FBMC) is reduced or eliminated by using non-orthogonal waveforms (i.e., faster than Nyquist modulation) in only part(s) of the subframe or packet and orthogonal waveforms in other part(s). The number and spacing between FTN pulses may be selected such that the last sample of the last pulse is received within the time slot allocated to the subframe/ packet, thereby eliminating added latency. The FTN modulation scheme may be employed both temporally and in frequency (e.g., the frequency spacing of the channels may be tighter than the Nyquist frequency spacing condition. FTN signaling also may be used as a method to control/coordinate interference between different nodes. For instance, if a node uses FTN, more pulses may be packed into a given period in the time domain and/or more channels may be packed into a given bandwidth in the frequency domain, hence some parts of the band may be vacated for use by others, use by the same node for additional channels, or used with reduced power. The interference control/coordination may be extended to time and frequency. Such FTN schemes may be used with different types of multicarrier systems.

Abstract translation: 本公开涉及用于提高多载波通信系统中的吞吐量的用于比奈奎斯特（FTN）调制方案更快的方法和装置，并且其中通过使用非正交波形来减少或消除滤波器组多载波系统（FBMC）中固有的等待时间问题（即， 比奈奎斯特调制更快）仅在子帧或分组的一部分中，其他部分的正交波形。 可以选择FTN脉冲之间的数量和间隔，使得在分配给子帧/分组的时隙内接收最后一个脉冲的最后一个样本，从而消除增加的等待时间。 FTN调制方案可以在时间上和频率上使用（例如，信道的频率间隔可以比奈奎斯特频率间隔条件更紧，FTN信令也可以用作控制/协调不同节点之间的干扰的方法。 例如，如果节点使用FTN，则可以在时域中将更多的脉冲打包到给定的时间段内，和/或可以将更多的信道压缩到频域中的给定带宽中，因此频带的某些部分可以腾出以供 其他的，由相同节点用于附加信道，或者以降低的功率使用，干扰控制/协调可以扩展到时间和频率，这样的FTN方案可以与不同类型的多载波系统一起使用。

公开(公告)号：WO2014036025A1

公开(公告)日：2014-03-06

申请号：PCT/US2013/056892

申请日：2013-08-27

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： DIFAZIO, Robert, A. ,  PIETRASKI, Philip, J. ,  YANG, Rui ,  BALA, Erdem ,  LI, Jialing

IPC: H04L5/14

CPC classification number: H04L5/14

Abstract: Embodiments contemplate TDD systems and techniques where timeslots may be allocated as DL, UL, or FDSC; the base station (BS) may be full duplex singled channel (FDSC) capable; and some, all, or none of the UEs (or WTRUs) may be FDSC capable. In one or more embodiments, FDSC1 timeslots may be contemplated that may be used (in some embodiments perhaps exclusively used) by a pair of radios, for example one BS and one UE, both having FD capability. In one or more embodiments, FDSC timeslots may be shared among a BS with FDSC capability and two or more UEs, that may be half duplex (HD). Embodiments also contemplate various FDD systems and techniques, including full duplex FDD systems and techniques.

Abstract translation: 实施例考虑了TDD系统和技术，其中时隙可以被分配为DL，UL或FDSC; 基站（BS）可以是全双工单通道（FDSC）能力; 并且一些，全部或者没有一个UE（或者WTRU）可以是FDSC能力的。 在一个或多个实施例中，可以预期可以由具有FD能力的一对无线电（例如一个BS和一个UE）使用（在一些实施例中可能是专门使用）的FDSC1时隙。 在一个或多个实施例中，FDSC时隙可以在具有FDSC能力的BS和可以是半双工（HD）的两个或更多个UE之间共享。 实施例还考虑了各种FDD系统和技术，包括全双工FDD系统和技术。

公开(公告)号：WO2013152249A1

公开(公告)日：2013-10-10

申请号：PCT/US2013/035355

申请日：2013-04-05

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： LI, Jialing ,  YANG, Rui ,  LU, I-Tai

IPC: H04L27/26

CPC classification number: H04L27/3416 ,  H04L25/08 ,  H04L27/2631 ,  H04L27/264 ,  H04L27/2698 ,  H04L27/366

Abstract: Systems and methods for providing orthogonal frequency division multiplexing-offset quadrature amplitude modulation (OFDM-OQAM) structure may be disclosed. For example, a synthesis filter bank (SFB) and/or an analysis filter bank (AFB) for a filter length may be derived. The filter length may be odd. Additionally, the AFB may be an inverse discrete Fourier transform (IDFT)-based AFB and/or a discrete Fourier transform (DFT)-based AFB.

Abstract translation: 可以公开用于提供正交频分复用偏移正交幅度调制（OFDM-OQAM）结构的系统和方法。 例如，可以导出用于滤波器长度的合成滤波器组（SFB）和/或分析滤波器组（AFB）。 滤波器长度可能是奇数。 另外，AFB可以是基于逆离散傅立叶变换（IDFT）的AFB和/或基于离散傅里叶变换（DFT）的AFB。

公开(公告)号：WO2012064998A3

公开(公告)日：2012-05-18

申请号：PCT/US2011/060258

申请日：2011-11-10

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  SAHIN, Onur ,  LI, Jialing ,  LI, Yingxue K. ,  PIETRASKI, Philip J.

Inventor： SAHIN, Onur ,  LI, Jialing ,  LI, Yingxue K. ,  PIETRASKI, Philip J.

IPC: H04L1/16 ,  H04L1/00

Abstract: Techniques for inter-cell interference cancellation are disclosed. At each transmitter, the data (message) may split into two or more layers, (e.g., common and private parts), and may be encoded in different rates, allocated with different powers, possibly beamformed using different precoders, and transmitted through the same physical channels. The common part is to be decoded at both the intended and unintended users, while the private part is to be decoded at the intended user.