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1.发明授权公开(公告)号：US08923126B2
公开(公告)日：2014-12-30
申请号：US13164324
申请日：2011-06-20
申请人： Ciou-Ping Wu , Chien-Hwa Hwang , Yu-Hao Chang
发明人： Ciou-Ping Wu , Chien-Hwa Hwang , Yu-Hao Chang
IPC分类号： H04B7/204
CPC分类号： H04L5/0032 , H04B15/00 , H04L1/1861 , H04L5/0053 , H04L27/2601 , H04W24/02 , H04W72/1289
摘要： A communications apparatus is provided. A controller module generates a suggested sub-frame pattern describing suggested arrangement of one or more almost blank sub-frame(s) in one or more frame(s) and schedules control signal and/or data transmissions according to the suggested sub-frame pattern. A transceiver module transmits at least a first signal carrying information regarding the suggested sub-frame pattern to a peer communications apparatus. The peer communications apparatus does not schedule data transmissions in the almost blank sub-frame(s).
摘要翻译： 提供一种通信装置。 控制器模块产生描述在一个或多个帧中的一个或多个几乎空白子帧的建议排列的建议子帧模式，并且根据建议的子帧模式调度控制信号和/或数据传输 。 收发器模块至少将携带关于所建议的子帧模式的信息的第一信号发送到对等通信装置。 对等通信装置不调度几乎空白的子帧中的数据传输。
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2.发明申请公开(公告)号：US20110310830A1
公开(公告)日：2011-12-22
申请号：US13164324
申请日：2011-06-20
申请人： Ciou-Ping Wu , Chien-Hwa Hwang , Yu-Hao Chang
发明人： Ciou-Ping Wu , Chien-Hwa Hwang , Yu-Hao Chang
CPC分类号： H04L5/0032 , H04B15/00 , H04L1/1861 , H04L5/0053 , H04L27/2601 , H04W24/02 , H04W72/1289
摘要： A communication apparatus is provided. A controller module generates a suggested sub-frame pattern describing suggested arrangement of one or more almost blank sub-frame(s) in one or more frame(s) and schedules control signal and/or data transmissions according to the suggested sub-frame pattern. A radio frequency module transmits at least a first signal carrying information regarding the suggested sub-frame pattern to a peer communications apparatus. The peer communications apparatus does not schedule data transmissions in the almost blank sub-frame(s).
摘要翻译： 提供一种通信装置。 控制器模块产生描述在一个或多个帧中的一个或多个几乎空白子帧的建议排列的建议子帧模式，并且根据建议的子帧模式调度控制信号和/或数据传输 。 无线电频率模块至少将携带关于所建议的子帧模式的信息的第一信号发送到对等通信装置。 对等通信装置不调度几乎空白的子帧中的数据传输。
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3.发明授权公开(公告)号：US08468396B2
公开(公告)日：2013-06-18
申请号：US12655522
申请日：2009-12-30
申请人： Ciou-Ping Wu , Pei-Kai Liao , Yu-Hao Chang , Yih-Shen Chen
发明人： Ciou-Ping Wu , Pei-Kai Liao , Yu-Hao Chang , Yih-Shen Chen
IPC分类号： G06F11/00
CPC分类号： H04L1/0066 , H04L1/0042 , H04L1/0071 , H04L27/34
摘要： A channel interleaver comprises a novel constellation-based permutation module. The channel interleaver first receives a plurality of sets of encoded bits generated from an FEC encoder. The encoded bits are distributed into multiple subblocks and each subblock comprises a plurality of adjacent bits. A subblock interleaver interleaves each subblock and outputs a plurality of interleaved bits. The constellation-based permutation module rearranges the interleaved bits and outputs a plurality of rearranged bits. The rearranged bits are supplied to a symbol mapper such that a plurality of consecutively encoded bits in the same set of the encoded bits generated from the FEC encoder is prevented to be mapped onto the same level of bit reliability of a modulation symbol. In addition, the plurality of adjacent bits of each subblock is also prevented to be mapped onto the same level of bit reliability to achieve constellation diversity and to improve decoding performance.
摘要翻译： 信道交织器包括新颖的基于星座的置换模块。 信道交织器首先接收从FEC编码器生成的多组编码比特。 编码的比特被分配到多个子块中，并且每个子块包括多个相邻的比特。 子块交织器交织每个子块并输出多个交织比特。 基于星座的置换模块重新排列交织的比特并输出多个重新排列的比特。 重新排列的比特被提供给符号映射器，使得从FEC编码器生成的同一组编码比特中的多个连续编码比特被阻止被映射到调制符号的相同级别的比特可靠性。 此外，还防止了每个子块的多个相邻位被映射到相同级别的比特可靠性以实现星座分集并提高解码性能。
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4.发明申请公开(公告)号：US20100169738A1
公开(公告)日：2010-07-01
申请号：US12655522
申请日：2009-12-30
申请人： Ciou-Ping Wu , Pei-Kai Liao , Yu-Hao Chang , Yih-Shen Chen
发明人： Ciou-Ping Wu , Pei-Kai Liao , Yu-Hao Chang , Yih-Shen Chen
IPC分类号： H03M13/05
CPC分类号： H04L1/0066 , H04L1/0042 , H04L1/0071 , H04L27/34
摘要： A channel interleaver comprises a novel constellation-based permutation module. The channel interleaver first receives a plurality of sets of encoded bits generated from an FEC encoder. The encoded bits are distributed into multiple subblocks and each subblock comprises a plurality of adjacent bits. A subblock interleaver interleaves each subblock and outputs a plurality of interleaved bits. The constellation-based permutation module rearranges the interleaved bits and outputs a plurality of rearranged bits. The rearranged bits are supplied to a symbol mapper such that a plurality of consecutively encoded bits in the same set of the encoded bits generated from the FEC encoder is prevented to be mapped onto the same level of bit reliability of a modulation symbol. In addition, the plurality of adjacent bits of each subblock is also prevented to be mapped onto the same level of bit reliability to achieve constellation diversity and to improve decoding performance.
摘要翻译： 信道交织器包括新颖的基于星座的置换模块。 信道交织器首先接收从FEC编码器生成的多组编码比特。 编码的比特被分配到多个子块中，并且每个子块包括多个相邻的比特。 子块交织器交织每个子块并输出多个交织比特。 基于星座的置换模块重新排列交织的比特并输出多个重新排列的比特。 重新排列的比特被提供给符号映射器，使得从FEC编码器生成的同一组编码比特中的多个连续编码比特被阻止被映射到调制符号的相同级别的比特可靠性。 此外，还防止了每个子块的多个相邻位被映射到相同级别的比特可靠性以实现星座分集并提高解码性能。
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5.发明授权公开(公告)号：US08799735B2
公开(公告)日：2014-08-05
申请号：US12655521
申请日：2009-12-30
申请人： Ciou-Ping Wu , Pei-Kai Liao , Yu-Hao Chang , Yih-Shen Chen
发明人： Ciou-Ping Wu , Pei-Kai Liao , Yu-Hao Chang , Yih-Shen Chen
IPC分类号： G06F11/00
CPC分类号： H04L1/0066 , H04L1/0042 , H04L1/0071 , H04L27/34
摘要： A channel interleaver comprises a novel constellation-based permutation module. The channel interleaver first receives a plurality of sets of encoded bits generated from an FEC encoder. The encoded bits are distributed into multiple subblocks and each subblock comprises a plurality of adjacent bits. A subblock interleaver interleaves each subblock and outputs a plurality of interleaved bits. The constellation-based permutation module rearranges the interleaved bits and outputs a plurality of rearranged bits. The rearranged bits are supplied to a symbol mapper such that a plurality of consecutively encoded bits in the same set of the encoded bits generated from the FEC encoder is prevented to be mapped onto the same level of bit reliability of a modulation symbol. In addition, the plurality of adjacent bits of each subblock is also prevented to be mapped onto the same level of bit reliability to achieve constellation diversity and to improve decoding performance.
摘要翻译： 信道交织器包括新颖的基于星座的置换模块。 信道交织器首先接收从FEC编码器生成的多组编码比特。 编码的比特被分配到多个子块中，并且每个子块包括多个相邻的比特。 子块交织器交织每个子块并输出多个交织比特。 基于星座的置换模块重新排列交织的比特并输出多个重新排列的比特。 重新排列的比特被提供给符号映射器，使得从FEC编码器生成的同一组编码比特中的多个连续编码比特被阻止被映射到调制符号的相同级别的比特可靠性。 此外，还防止了每个子块的多个相邻位被映射到相同级别的比特可靠性以实现星座分集并提高解码性能。
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6.发明申请公开(公告)号：US20100169722A1
公开(公告)日：2010-07-01
申请号：US12655521
申请日：2009-12-30
申请人： Ciou-Ping Wu , Pei-Kai Liao , Yu-Hao Chang , Yih-Shen Chen
发明人： Ciou-Ping Wu , Pei-Kai Liao , Yu-Hao Chang , Yih-Shen Chen
IPC分类号： G06F11/00
CPC分类号： H04L1/0066 , H04L1/0042 , H04L1/0071 , H04L27/34
摘要： A channel interleaver comprises a novel constellation-based permutation module. The channel interleaver first receives a plurality of sets of encoded bits generated from an FEC encoder. The encoded bits are distributed into multiple subblocks and each subblock comprises a plurality of adjacent bits. A subblock interleaver interleaves each subblock and outputs a plurality of interleaved bits. The constellation-based permutation module rearranges the interleaved bits and outputs a plurality of rearranged bits. The rearranged bits are supplied to a symbol mapper such that a plurality of consecutively encoded bits in the same set of the encoded bits generated from the FEC encoder is prevented to be mapped onto the same level of bit reliability of a modulation symbol. In addition, the plurality of adjacent bits of each subblock is also prevented to be mapped onto the same level of bit reliability to achieve constellation diversity and to improve decoding performance.
摘要翻译： 信道交织器包括新颖的基于星座的置换模块。 信道交织器首先接收从FEC编码器生成的多组编码比特。 编码的比特被分配到多个子块中，并且每个子块包括多个相邻的比特。 子块交织器交织每个子块并输出多个交织比特。 基于星座的置换模块重新排列交织的比特并输出多个重新排列的比特。 重新排列的比特被提供给符号映射器，使得从FEC编码器生成的同一组编码比特中的多个连续编码比特被阻止被映射到调制符号的相同级别的比特可靠性。 此外，还防止了每个子块的多个相邻位被映射到相同级别的比特可靠性以实现星座分集并提高解码性能。
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公开(公告)号：US20110199990A1
公开(公告)日：2011-08-18
申请号：US12924650
申请日：2010-09-30
申请人： Yu-Hao Chang , Yib-Shen Chen
发明人： Yu-Hao Chang , Yib-Shen Chen
CPC分类号： H04W52/54 , H04W52/146 , H04W52/241 , H04W52/42
摘要： A method of uplink power control in a wireless OFDMA system is provided. A serving base station first configures a fast feedback channel by transmitting a feedback allocation message to a mobile station. The mobile station then reports downlink channel information via the allocated fast feedback channel. Based on the reported downlink channel information, the serving base station estimates uplink channel quality and thereby detects a channel variation and generates an uplink power adjustment message that delivers a power offset to adjust the transmitting power level of the mobile station. In one novel aspect, the uplink power adjustment message also comprises feedback allocation information that re-configures the fast feedback channel without extra signaling overhead. In addition, the novel power adjustment message eliminates redundant information such that it is transmitted via a minimum resource unit without requiring extra resource.
摘要翻译： 提供了一种在无线OFDMA系统中的上行链路功率控制的方法。 服务基站首先通过向移动台发送反馈分配消息来配置快速反馈信道。 移动台然后经由分配的快速反馈信道报告下行链路信道信息。 基于所报告的下行链路信道信息，服务基站估计上行链路信道质量，从而检测信道变化，并产生传递功率偏移以调整移动台的发射功率电平的上行链路功率调整消息。 在一个新颖的方面，上行链路功率调整消息还包括重新配置快速反馈信道而没有额外的信令开销的反馈分配信息。 另外，新的功率调整消息消除了冗余信息，使得它经由最小资源单元被传输，而不需要额外的资源。
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公开(公告)号：US08837394B2
公开(公告)日：2014-09-16
申请号：US13134811
申请日：2011-06-17
申请人： Chih-Yuan Lin , Yu-Hao Chang
发明人： Chih-Yuan Lin , Yu-Hao Chang
CPC分类号： H04L5/0048 , H04L5/001 , H04L5/0091 , H04W72/042
摘要： Sounding mechanism for LTE-A systems under carrier aggregation is provided. A UE receives an uplink or downlink grant transmitted from an eNB over a primary carrier in a multi-carrier LTE-A system. The UE determines indicated carrier(s) and detects a triggering condition for aperiodic sounding transmission in the grant. The UE then selects UE-specific sounding reference signal (SRS) parameters. Finally, the UE transmits an aperiodic SRS (ap-SRS) over the indicated carrier(s) using the selected UE-specific SRS parameters. In one embodiment, the uplink or downlink grant is transmitted via a PDCCH carrying various DCI formats. Each DCI format contains a carrier indicator field (CIF) that indicates which carrier is used for ap-SRS transmission if cross-carrier scheduling is enabled. In another embodiment, DCI format 3/3A is transmitted via a PDCCH carrying a plurality of information fields, each field indicates if the UE should enable ap-SRS in a particular carrier.
摘要翻译： 提供了载波聚合下LTE-A系统的探测机制。 UE在多载波LTE-A系统中通过主载波接收从eNB发送的上行链路或下行链路许可。 UE确定指示的载波并且在授权中检测用于非周期性探测传输的触发条件。 然后，UE选择UE特定的探测参考信号（SRS）参数。 最后，UE使用所选择的UE专用SRS参数在所指示的载波上发送非周期SRS（ap-SRS）。 在一个实施例中，经由载有各种DCI格式的PDCCH发送上行链路或下行链路许可。 每个DCI格式包含载波指示符字段（CIF），其指示如果启用了跨载波调度，则将哪个载波用于ap-SRS传输。 在另一个实施例中，经由载有多个信息字段的PDCCH发送DCI格式3 / 3A，每个字段指示UE是否应该在特定载波中启用ap-SRS。
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9.发明授权Preamble partition and cell identification procedure in wireless communication systems 有权无线通信系统中的前导分区和小区识别过程公开(公告)号：US08619673B2
公开(公告)日：2013-12-31
申请号：US12803832
申请日：2010-07-06
申请人： Yu-Hao Chang , Yih-Shen Chen , Pei-Kai Liao
发明人： Yu-Hao Chang , Yih-Shen Chen , Pei-Kai Liao
CPC分类号： H04W48/20
摘要： Two preamble partition schemes are provided for flexible network deployment and efficient utilization of limited cell identification resources in a wireless network. In a soft partition scheme, the entire preamble sequences are partitioned into several configurable non-overlapping subsets, and each subset is associated with a corresponding cell type. In a hybrid partition scheme, a combination of fixed and configurable subsets is used for preamble partition. The partitioning information is carried in a broadcasting channel broadcasted from base stations to mobile stations. In one embodiment, after a mobile station performs scanning and synchronization with a first base station, it derives the cell type of the first base station from cell identification and partitioning information. The mobile station completes ranging and network entry with the first base station if the cell type is preferred, and starts to perform scanning and synchronization with a second base station if the cell type is non-preferred.
摘要翻译： 提供两个前导码分区方案用于无线网络中的有限小区标识资源的灵活网络部署和有效利用。 在软分区方案中，将整个前导码序列划分成若干可配置的非重叠子集，并且每个子集与相应的小区类型相关联。 在混合分区方案中，固定和可配置子集的组合用于前导码分区。 分区信息在从基站广播的广播信道中携带到移动台。 在一个实施例中，在移动台与第一基站执行扫描和同步之后，它从小区识别和分区信息中导出第一基站的小区类型。 如果小区类型是优选的，则移动台完成与第一基站的测距和网络入口，并且如果小区类型是不优选的，则开始执行与第二基站的扫描和同步。
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公开(公告)号：US08588205B2
公开(公告)日：2013-11-19
申请号：US12924676
申请日：2010-09-30
申请人： Yu-Hao Chang , Yih-Shen Chen
发明人： Yu-Hao Chang , Yih-Shen Chen
CPC分类号： H04W52/146 , H04W52/241
摘要： A method of power control message indexing is provided in a wireless Orthogonal Frequency Division Multiple Access (OFDMA) network. A base station configures fast feedback channels (FFBCHs) and mobile stations report downlink channel information via the configured FFBCHs. Based on the received channel information, the base station estimates uplink channel quality and detects any channel variation. In response to uplink channel variation, the base station delivers power offsets to adjust the transmit power levels of the mobile stations. In one advantageous aspect, the power control commands for mobile stations are aggregated and the indexing scheme of the power control commands is implicitly based on the configured FFBCHs. For example, if a FFBCH is located at a first location in an uplink frame, then a following power control command in response to the FFBCH is located at a second location in a downlink frame, the second location is located after the first location with a predefined fixed delay time.
摘要翻译： 在无线正交频分多址（OFDMA）网络中提供功率控制消息索引的方法。 基站配置快速反馈信道（FFBCH），移动台通过配置的FFBCHs报告下行链路信道信息。 基于所接收的信道信息，基站估计上行信道质量并检测任何信道变化。 响应于上行链路信道变化，基站提供功率偏移以调整移动站的发射功率电平。 在一个有利的方面，用于移动站的功率控制命令被聚合，并且功率控制命令的索引方案隐含地基于配置的FFBCH。 例如，如果FFBCH位于上行链路帧中的第一位置，则响应于FFBCH的后续功率控制命令位于下行链路帧中的第二位置，则第二位置位于第一位置之后， 预定义的固定延迟时间。
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