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：US08942633B2

公开(公告)日：2015-01-27

申请号：US13187156

申请日：2011-07-20

申请人： Li-Chun Ko ,  Hong-Kai Hsu ,  I-Kang Fu ,  Chi-Chen Lee

发明人： Li-Chun Ko ,  Hong-Kai Hsu ,  I-Kang Fu ,  Chi-Chen Lee

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04W72/12 ,  H04W40/00 ,  H04W72/00 ,  H04W88/06

CPC分类号： H04W72/0446 ,  H04W72/1215 ,  H04W76/14 ,  H04W88/06

摘要： A wireless communication device is provided with a first radio module and a second radio module inside. The first radio module performs wireless transceiving according to a plurality of first traffic patterns which each indicates allocations of a plurality of first slots for a plurality of forthcoming transmitting or receiving operations, respectively. The second radio module determines an indicator indicating at least one of a plurality of second traffic patterns which each indicates allocations of a plurality of second slots for a plurality of forthcoming transmitting or receiving operations, respectively. Particularly, one or more allocations of the second slots are selectively determined according to the first traffic patterns. Also, the second radio module transmits the indicator to a peer communication device, so that the peer communication device performs transmitting or receiving operations according to the indicator.

摘要翻译： 无线通信装置具有第一无线电模块和第二无线电模块。 第一无线电模块根据多个第一业务模式执行无线收发，每个第一业务模式分别指示用于多个即将发送或接收操作的多个第一时隙的分配。 第二无线电模块确定指示多个第二业务模式中的至少一个的指示符，其分别表示多个即将发送或接收操作的多个第二时隙的分配。 特别地，根据第一业务模式选择性地确定第二时隙的一个或多个分配。 此外，第二无线电模块将指示符发送到对等通信设备，使得对等通信设备根据指示符执行​​发送或接收操作。

公开(公告)号：US08780880B2

公开(公告)日：2014-07-15

申请号：US13200775

申请日：2011-09-29

申请人： Kuhn-Chang Lin ,  I-Kang Fu ,  York Ted Su

发明人： Kuhn-Chang Lin ,  I-Kang Fu ,  York Ted Su

IPC分类号： H04J3/00

CPC分类号： H04W28/044 ,  H04W72/0446 ,  H04W72/1215 ,  H04W74/085 ,  H04W76/28 ,  H04W88/06

摘要： A method of TDM in-device coexistence (IDC) interference avoidance is proposed. In a wireless communication device, a first radio module is co-located with a second radio module in the same device platform. The first radio module obtains traffic and scheduling information of the second radio module. The first radio module then determines a desired TDM pattern based on the traffic and scheduling information to prevent IDC interference with the second radio module. The first radio module also transmits TDM coexistence pattern information based on the desired TDM pattern to a base station. In one embodiment, the TDM coexistence pattern information comprises a recommended TDM pattern periodicity and a scheduling period to maximize IDC efficiency subject to limited level of IDC interference possibility. In one specific example, the TDM coexistence pattern information comprises a set of discontinuous reception (DRX) configuration parameters defined in long-term evolution (LTE) 3GPP standards.

摘要翻译： 提出了一种TDM设备共存（IDC）干扰避免的方法。 在无线通信设备中，第一无线电模块与同一设备平台中的第二无线电模块共同定位。 第一无线电模块获得第二无线电模块的业务和调度信息。 然后，第一无线电模块基于业务和调度信息确定期望的TDM模式，以防止IDC与第二无线电模块的干扰。 第一无线电模块还将基于期望的TDM模式的TDM共存模式信息发送到基站。 在一个实施例中，TDM共存模式信息包括推荐的TDM模式周期性和调度周期，以在受到IDC干扰可能性的限制水平的情况下最大化IDC效率。 在一个具体示例中，TDM共存模式信息包括在长期演进（LTE）3GPP标准中定义的一组不连续接收（DRX）配置参数。

公开(公告)号：US08750807B2

公开(公告)日：2014-06-10

申请号：US13346083

申请日：2012-01-09

申请人： Shiang-Jiun Lin ,  Chia-Chun Hsu ,  Yih-Shen Chen ,  I-Kang Fu

发明人： Shiang-Jiun Lin ,  Chia-Chun Hsu ,  Yih-Shen Chen ,  I-Kang Fu

IPC分类号： H04B17/00

CPC分类号： H04W24/10 ,  H04W28/18 ,  H04W48/08 ,  H04W92/10

摘要： A method of measurement gap reporting and configuration is provided. In a mobile network, a UE receives a capability enquiry message from a serving base station. The UE comprises one or more radio frequency modules that support a list of frequency bands and a list of carrier aggregation (CA) band combinations. In response to the enquiry, the UE transmits capability information containing measurement parameters to the base station. In one embodiment, the measurement parameters comprise need-for-gap parameters for each frequency band and each CA band combinations associated with a list of to-be-measured frequency bands of target cells. Based on the reported measurement parameters, the eNB transmits a measurement configuration message to the UE. Finally, the UE transmits a measurement gap application message back to the base station. The measurement gap application message indicates whether the UE applies MG for each configured component carrier.

摘要翻译： 提供了一种测量间隙报告和配置的方法。 在移动网络中，UE从服务基站接收能力查询消息。 UE包括支持频带列表和载波聚合（CA）频带组合的列表的一个或多个射频模块。 响应于该询问，UE向基站发送包含测量参数的能力信息。 在一个实施例中，测量参数包括对于每个频带的需要间隙参数和与目标小区的待测频带列表相关联的每个CA频带组合。 基于所报告的测量参数，eNB向UE发送测量配置消息。 最后，UE向基站发送测量间隙应用消息。 测量间隙应用消息指示UE是否为每个配置的分量载波应用MG。

公开(公告)号：US08744014B2

公开(公告)日：2014-06-03

申请号：US12766330

申请日：2010-04-23

申请人： Chu-Jung Yeh ,  Li-Chun Wang ,  I-Kang Fu

发明人： Chu-Jung Yeh ,  Li-Chun Wang ,  I-Kang Fu

IPC分类号： H04L27/22

CPC分类号： H04L5/0023 ,  H04B7/024 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0075 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03866

摘要： A FFR (fractional frequency reuse)-based network MIMO (multiple-input multiple-output) transmission architecture in a cellular system that employs cell sectoring using directional antennas. Each cell is sectorized into three outer sectors using three directional antennas which transmit in three different directions using three different frequency subbands. The cell sectors are arranged based on a frequency partition scheme so that three sectors in three neighboring cells form a coordinated group for network MIMO transmission. A regular and a rearranged frequency partition are described. Further, a practical implementation of SON (self organizing network)-based three-cell FFR-based network MIMO for a wireless OFDM system is described. In this implementation, a server connected to multiple base stations (BSs) defines multiple coordinated groups for coordinated MIMO transmission, and the BSs within each coordinated group negotiate a common radio resource region (a composite time-frequency region), and selects a serving mobile station to participate in the coordinated MIMO transmission.

摘要翻译： 在采用使用定向天线的小区扇区的蜂窝系统中的基于FFR（分数频率重用）的网络MIMO（多输入多输出）传输架构。 使用三个定向天线将每个小区分成三个外部扇区，三个定向天线使用三个不同的频率子带在三个不同的方向上发射。 基于频率分配方案来布置小区扇区，使得三个相邻小区中的三个扇区形成用于网络MIMO传输的协调组。 描述了常规和重新排列的频率分区。 此外，描述了用于无线OFDM系统的基于SON（自组织网络）的基于三小区FFR的网络MIMO的实际实现。 在该实现中，连接到多个基站（BS）的服务器定义用于协调MIMO传输的多个协调组，并且每个协调组内的BS协商公共无线电资源区域（复合时间 - 频率区域），并且选择服务移动 站参与协调MIMO传输。

公开(公告)号：US08369241B2

公开(公告)日：2013-02-05

申请号：US12387380

申请日：2009-04-30

申请人： Chao-Chin Chou ,  Yih-Shen Chen ,  I-Kang Fu

发明人： Chao-Chin Chou ,  Yih-Shen Chen ,  I-Kang Fu

IPC分类号： H04B7/216

CPC分类号： H04J3/0682 ,  H04W74/008

摘要： A fast feedback mechanism is provided in a contention-based ranging procedure. A Subscriber Station (SS) initializes a ranging procedure by sending a ranging code on a selected ranging opportunity for resource access to a Base Station (BS) on a shared ranging channel in a previous uplink frame. The SS also starts a time associated with the ranging code. In response to all received ranging opportunities, the BS broadcasts an acknowledgement (ACK) in a subsequent downlink frame. The ACK comprises a reception status message that indicates the decoding status of the ranging opportunities. With the novel fast feedback mechanism, when ranging collision or failure occurs, upon receiving the reception status report, the SS will proceed with the next round of contention without continuing wait for the entire timeout period. As a result, the total latency due to the ranging collision or failure is reduced.