公开(公告)号：US08891350B2

公开(公告)日：2014-11-18

申请号：US12459720

申请日：2009-07-06

申请人： I-Kang Fu ,  Po-Yuen Cheng ,  Pei-Kai Liao

发明人： I-Kang Fu ,  Po-Yuen Cheng ,  Pei-Kai Liao

IPC分类号： H04J11/00 ,  H04W4/00 ,  H04L5/00 ,  H04L27/26

CPC分类号： H04W72/0453 ,  H04J11/00 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/03343 ,  H04L25/03821 ,  H04L27/2626 ,  H04L27/2646 ,  H04L27/2666 ,  H04W72/02

摘要： A method of data transmission over guard sub-carriers is provided in a multi-carrier OFDM system. Adjacent radio frequency (RF) carriers are used to carry radio signals transmitted through adjacent frequency channels. A plurality of guard sub-carriers between adjacent frequency channels are aligned and identified for data transmission in a pre-defined physical resource unit. The identified guard sub-carriers do not overlap with normal data sub-carriers of the radio signals transmitted through the adjacent frequency channels. At least one of the identified guard sub-carriers is reserved as NULL sub-carrier. A flexible multi-carrier transceiver architecture is also provided in a multi-carrier OFDM system. Different multi-carrier and/or MIMO/SISO data transmission schemes are implemented by adaptively reconfigure same hardware modules including common MAC layer module, physical layer entities, and RF entities. Furthermore, the flexible multi-carrier transceiver architecture can be used to support data transmission over guard sub-carriers.

摘要翻译： 在多载波OFDM系统中提供了一种在保护子载波上进行数据传输的方法。 相邻射频（RF）载波用于携带通过相邻频道传输的无线电信号。 在预定义的物理资源单元中，对齐和识别相邻频道之间的多个保护子载波用于数据传输。 所识别的保护子载波不与通过相邻频道发送的无线电信号的正常数据子载波重叠。 所确定的保护子载波中的至少一个被保留为空子载波。 在多载波OFDM系统中还提供灵活的多载波收发器架构。 通过自适应地重新配置包括公共MAC层模块，物理层实体和RF实体的相同硬件模块来实现不同的多载波和/或MIMO / SISO数据传输方案。 此外，灵活的多载波收发器架构可以用于支持保护子载波上的数据传输。

公开(公告)号：US20100002675A1

公开(公告)日：2010-01-07

申请号：US12459720

申请日：2009-07-06

申请人： I-Kang Fu ,  Po-Yuen Cheng ,  Pei-Kai Liao

发明人： I-Kang Fu ,  Po-Yuen Cheng ,  Pei-Kai Liao

IPC分类号： H04J1/00 ,  H04L27/28

CPC分类号： H04W72/0453 ,  H04J11/00 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/03343 ,  H04L25/03821 ,  H04L27/2626 ,  H04L27/2646 ,  H04L27/2666 ,  H04W72/02

摘要： A method of data transmission over guard sub-carriers is provided in a multi-carrier OFDM system. Adjacent radio frequency (RF) carriers are used to carry radio signals transmitted through adjacent frequency channels. A plurality of guard sub-carriers between adjacent frequency channels are aligned and identified for data transmission in a pre-defined physical resource unit. The identified guard sub-carriers do not overlap with normal data sub-carriers of the radio signals transmitted through the adjacent frequency channels. At least one of the identified guard sub-carriers is reserved as NULL sub-carrier. A flexible multi-carrier transceiver architecture is also provided in a multi-carrier OFDM system. Different multi-carrier and/or MIMO/SISO data transmission schemes are implemented by adaptively reconfigure same hardware modules including common MAC layer module, physical layer entities, and RF entities. Furthermore, the flexible multi-carrier transceiver architecture can be used to support data transmission over guard sub-carriers.

摘要翻译： 在多载波OFDM系统中提供了一种在保护子载波上进行数据传输的方法。 相邻射频（RF）载波用于携带通过相邻频道传输的无线电信号。 在预定义的物理资源单元中，对齐和识别相邻频道之间的多个保护子载波用于数据传输。 所识别的保护子载波不与通过相邻频道发送的无线电信号的正常数据子载波重叠。 所确定的保护子载波中的至少一个被保留为空子载波。 在多载波OFDM系统中还提供灵活的多载波收发器架构。 通过自适应地重新配置包括公共MAC层模块，物理层实体和RF实体的相同硬件模块来实现不同的多载波和/或MIMO / SISO数据传输方案。 此外，灵活的多载波收发器架构可以用于支持保护子载波上的数据传输。

公开(公告)号：US20100002571A1

公开(公告)日：2010-01-07

申请号：US12498531

申请日：2009-07-07

申请人： Pei-Kai Liao ,  I-Kang Fu

发明人： Pei-Kai Liao ,  I-Kang Fu

IPC分类号： H04J11/00 ,  H04L27/00

CPC分类号： H04L27/2647 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0044 ,  H04L27/261 ,  H04L27/2644

摘要： A communications apparatus is provided. A receiving module receives a signal with a predetermined signal bandwidth. A low pass filter filters the signal to obtain a filtered signal. A filter bandwidth of the low pass filter is wide enough to pass the regular sub-carrier frequency components and at least half of the guard sub-carrier frequency components of the signal. An analog to digital converter samples the filtered signal with a sampling rate exceeding a standard sampling rate defined in accordance with the predetermined signal bandwidth of the signal to obtain a plurality of digital samples. A Fast Fourier Transform module performs a fast Fourier transform on a predetermined number of points of the digital samples to obtain a plurality of transformed samples. The predetermined number exceeds a standard number defined in accordance with the predetermined carrier bandwidth. A sub-carrier collector collects the data from the transformed samples.

摘要翻译： 提供一种通信装置。 接收模块接收具有预定信号带宽的信号。 低通滤波器对信号进行滤波以获得滤波信号。 低通滤波器的滤波器带宽足够宽以使正常的子载波频率分量和信号的保护子载波频率分量的至少一半。 模数转换器以超过根据信号的预定信号带宽定义的标准采样速率的采样率对滤波后的信号进行采样，以获得多个数字采样。 快速傅立叶变换模块对数字样本的预定数量的点执行快速傅里叶变换，以获得多个变换样本。 预定数量超过根据预定载波带宽定义的标准号码。 子载波收集器从转换的样本收集数据。

公开(公告)号：US08665695B2

公开(公告)日：2014-03-04

申请号：US12498531

申请日：2009-07-07

申请人： Pei-Kai Liao ,  I-Kang Fu

发明人： Pei-Kai Liao ,  I-Kang Fu

IPC分类号： H04J11/00

CPC分类号： H04L27/2647 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0044 ,  H04L27/261 ,  H04L27/2644

摘要： A communications apparatus is provided. A receiving module receives a signal with a predetermined signal bandwidth. A low pass filter filters the signal to obtain a filtered signal. A filter bandwidth of the low pass filter is wide enough to pass the regular sub-carrier frequency components and at least half of the guard sub-carrier frequency components of the signal. An analog to digital converter samples the filtered signal with a sampling rate exceeding a standard sampling rate defined in accordance with the predetermined signal bandwidth of the signal to obtain a plurality of digital samples. A Fast Fourier Transform module performs a fast Fourier transform on a predetermined number of points of the digital samples to obtain a plurality of transformed samples. The predetermined number exceeds a standard number defined in accordance with the predetermined carrier bandwidth. A sub-carrier collector collects the data from the transformed samples.

摘要翻译： 提供一种通信装置。 接收模块接收具有预定信号带宽的信号。 低通滤波器对信号进行滤波以获得滤波信号。 低通滤波器的滤波器带宽足够宽以使正常的子载波频率分量和信号的保护子载波频率分量的至少一半。 模数转换器以超过根据信号的预定信号带宽定义的标准采样速率的采样率对滤波后的信号进行采样，以获得多个数字采样。 快速傅立叶变换模块对数字样本的预定数量的点执行快速傅里叶变换，以获得多个变换样本。 预定数量超过根据预定载波带宽定义的标准号码。 子载波收集器从转换的样本收集数据。

公开(公告)号：US08259828B2

公开(公告)日：2012-09-04

申请号：US12369563

申请日：2009-02-11

申请人： I-Kang Fu ,  Pei-Kai Liao

发明人： I-Kang Fu ,  Pei-Kai Liao

IPC分类号： H04K1/10

CPC分类号： H04L25/03159 ,  H04L5/0007 ,  H04L5/0044 ,  H04L25/03343 ,  H04L25/03821 ,  H04L27/2626 ,  H04L27/2657

摘要： A method of aligning sub-carriers of radio signals of two adjacent frequency channels and devices therefor are described. The method comprises aligning a first plurality of sub-carriers of a first radio signal and a second plurality of sub-carriers of a second radio signal within an overlapped frequency region in-between the two adjacent frequency channels by shifting a center frequency of the first radio signal with a frequency offset. The first radio signal and the second radio signal are adapted for transmission over the two adjacent frequency channels and the first frequency channel is one of the two adjacent frequency channels.

摘要翻译： 描述了一种对准两个相邻频率信道的无线电信号的子载波的方法及其装置。 该方法包括通过将第一无线电信号的第一和第二多个子载波的中心频率移位，在第二相邻频率信道之间的重叠频率区域内对准第一无线电信号的第一多个子载波 具有频率偏移的无线电信号。 第一无线电信号和第二无线电信号适于在两个相邻频率信道上进行传输，而第一频道是两个相邻频道之一。

公开(公告)号：US20090202010A1

公开(公告)日：2009-08-13

申请号：US12369563

申请日：2009-02-11

申请人： I-Kang FU ,  Pei-Kai Liao

发明人： I-Kang FU ,  Pei-Kai Liao

IPC分类号： H04L27/28

CPC分类号： H04L25/03159 ,  H04L5/0007 ,  H04L5/0044 ,  H04L25/03343 ,  H04L25/03821 ,  H04L27/2626 ,  H04L27/2657

摘要： A method of aligning sub-carriers of radio signals of two adjacent frequency channels and devices therefor are described. The method comprises aligning a first plurality of sub-carriers of a first radio signal and a second plurality of sub-carriers of a second radio signal within an overlapped frequency region in-between the two adjacent frequency channels by shifting a center frequency of the first radio signal with a frequency offset. The first radio signal and the second radio signal are adapted for transmission over the two adjacent frequency channels and the first frequency channel is one of the two adjacent frequency channels.

摘要翻译： 描述了一种对准两个相邻频率信道的无线电信号的子载波的方法及其装置。 该方法包括通过将第一无线电信号的第一和第二多个子载波的中心频率移位，在第二相邻频率信道之间的重叠频率区域内对准第一无线电信号的第一多个子载波 具有频率偏移的无线电信号。 第一无线电信号和第二无线电信号适于在两个相邻频率信道上进行传输，而第一频道是两个相邻频道之一。

公开(公告)号：US09750046B2

公开(公告)日：2017-08-29

申请号：US14779176

申请日：2014-04-03

申请人： Hua-Min Chen ,  Pei-Kai Liao ,  Xiangyang Zhuang

发明人： Hua-Min Chen ,  Pei-Kai Liao ,  Xiangyang Zhuang

IPC分类号： H04W4/00 ,  H04W72/12 ,  H04L5/00 ,  H04W88/02

CPC分类号： H04W72/1289 ,  H04L5/0044 ,  H04L5/0091 ,  H04W88/02

摘要： A method includes: determining a first set of radio resources by decoding a dynamic indicator channel, wherein the dynamic indicator channel indicates a location of the first set of radio resources detecting a physical control channel in the determined first set of radio resources; and obtaining scheduling information of a data channel that carries a message from the decoded physical control channel.

公开(公告)号：US09467959B2

公开(公告)日：2016-10-11

申请号：US13435504

申请日：2012-03-30

申请人： Yih-Shen Chen ,  Per Johan Mikael Johansson ,  Chia-Chun Hsu ,  Pei-Kai Liao ,  Shiang-Jiun Lin

发明人： Yih-Shen Chen ,  Per Johan Mikael Johansson ,  Chia-Chun Hsu ,  Pei-Kai Liao ,  Shiang-Jiun Lin

IPC分类号： H04W56/00 ,  H04L5/00 ,  H04W28/06

CPC分类号： H04W56/0045 ,  H04L5/001 ,  H04W28/06

摘要： A method of managing multiple timing advance (TA) groups, maintaining multiple TA timers, and performing UL synchronization in a multi-carrier wireless system is provided. When a new component carrier (CC) is configured, it is assigned to a TA group having a TA group identifier. The TA groups are managed statically or dynamically. The TA group identifier is used to uniquely identify the TA group in the operations of uplink (UL) timing synchronization. Multiple TA timers are assigned to multiple TA groups. The TA timers may have different values for different TA group. Different embodiments of UL timing adjustments for multiple TA groups are provided.

摘要翻译： 提供了一种在多载波无线系统中管理多个定时提前（TA）组，维护多个TA定时器以及执行UL同步的方法。 当配置新的分量载波（CC）时，将其分配给具有TA组标识符的TA组。 TA组是静态或动态管理的。 TA组标识符用于在上行链路（UL）定时同步的操作中唯一地标识TA组。 多个TA定时器分配给多个TA组。 TA定时器对于不同的TA组可能具有不同的值。 提供了用于多个TA组的UL定时调整的不同实施例。

公开(公告)号：US08861430B2

公开(公告)日：2014-10-14

申请号：US13570717

申请日：2012-08-09

申请人： Pei-Kai Liao ,  Chih-Yuan Lin

发明人： Pei-Kai Liao ,  Chih-Yuan Lin

IPC分类号： H04B7/185 ,  H04B7/06 ,  H04W72/08 ,  H04B7/02 ,  H04W24/10

CPC分类号： H04W72/085 ,  H04B7/024 ,  H04B7/0626 ,  H04W24/10

摘要： Procedures for point association as well as measurement and feedback required to enable point association for CoMP deployment scenario 4 are proposed. In a first novel aspect, a serving eNB configures a first higher-layer configuration for RSRP measurement to be used by a UE for serving point selection. The higher-layer configuration contains multiple CSI-RS configurations, and each CSI-RS configuration indicates a set of resource elements (REs) or subcarriers in both frequency domain and time domain as one CSI-RS resource with non-zero transmission power. The UE then performs RSRP measurements based on the multiple CSI-RS configurations and reports RSRP measurement results to the serving eNB. In a second novel aspect, the serving eNB configures a second higher-layer configuration for CSI reporting based on the reported RSRP measurement results. In a third novel aspect, the serving eNB sends CSI-RS information to the UE for uplink power control.

摘要翻译： 提出了点关联的程序以及启用CoMP部署场景4的点关联所需的测量和反馈。 在第一新颖的方面，服务eNB配置用于RSRP测量的第一高层配置以由UE用于服务点选择。 较高层配置包含多个CSI-RS配置，并且每个CSI-RS配置指示频域和时域中的一组资源元素（RE）或子载波，作为具有非零传输功率的一个CSI-RS资源。 然后，UE基于多个CSI-RS配置执行RSRP测量，并向服务eNB报告RSRP测量结果。 在第二个新颖的方面，服务eNB基于报告的RSRP测量结果来配置用于CSI报告的第二较高层配置。 在第三个新颖的方面，服务eNB向UE发送CSI-RS信息以进行上行链路功率控制。

公开(公告)号：US08737299B2

公开(公告)日：2014-05-27

申请号：US13134857

申请日：2011-06-20

申请人： Pei-Kai Liao

发明人： Pei-Kai Liao

IPC分类号： H04W4/00 ,  H04L5/00

CPC分类号： H04L5/0055 ,  H04L1/1614 ,  H04L1/1861 ,  H04L1/1896 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0082 ,  H04L5/0094

摘要： An efficient uplink HARQ feedback channel resource allocation scheme is adopted for carrier aggregation in a multi-carrier LTE/LTE-A system. Two resource allocation schemes (e.g., explicit and hybrid) for HARQ ACK/NACK (A/N) are applied. Part of the resources is allocated based on explicit method via RRC configuration. Another part of the resources is allocated based on hybrid method via both RRC and implicit information carried by downlink schedulers. In an explicit method, the physical resource for A/N feedback information is determined based on a resource index in a DL scheduling grant. The DL grant corresponds to transport blocks over a configured CC. The resource index points to a physical resource from a set of candidate uplink A/N physical resources reserved for the CC. In an implicit method, the A/N physical resources are determined based on a logical address of the DL scheduling grant.

摘要翻译： 在多载波LTE / LTE-A系统中采用有效的上行HARQ反馈信道资源分配方案进行载波聚合。 应用用于HARQ ACK / NACK（A / N）的两种资源分配方案（例如，显式和混合）。 通过RRC配置，基于显式方法分配部分资源。 资源的另一部分是通过RRC和由下行链路调度器携带的隐式信息基于混合方法分配的。 在显式方法中，基于DL调度授权中的资源索引来确定用于A / N反馈信息的物理资源。 DL授权对应于配置的CC上的传输块。 资源索引从为CC保留的一组候选上行链路A / N物理资源指向物理资源。 在隐式方法中，基于DL调度授权的逻辑地址来确定A / N物理资源。