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。

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。

公开(公告)号：US20110007690A1

公开(公告)日：2011-01-13

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

IPC分类号： H04W40/00

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。

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

IPC分类号： H04W4/00 ,  H04W36/00

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。

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。

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。

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

IPC分类号： H04B7/216 ,  H04B7/208 ,  H04B7/185 ,  H04L27/28

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。

公开(公告)号：US08520542B2

公开(公告)日：2013-08-27

申请号：US12924650

申请日：2010-09-30

申请人： Yu-Hao Chang ,  Yih-Shen Chen

发明人： Yu-Hao Chang ,  Yih-Shen Chen

IPC分类号： H04J1/16 ,  H04L12/26 ,  H04L12/28 ,  H04W4/00

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。

公开(公告)号：US20110243106A1

公开(公告)日：2011-10-06

申请号：US13065923

申请日：2011-04-01

申请人： Chia-Chun Hsu ,  Yih-Shen Chen ,  Yu-Hao Chang ,  I-Kang Fu

发明人： Chia-Chun Hsu ,  Yih-Shen Chen ,  Yu-Hao Chang ,  I-Kang Fu

IPC分类号： H04W72/04

CPC分类号： H04W24/10 ,  H04L5/0096 ,  H04L5/0098 ,  H04W52/365 ,  H04W72/1284 ,  H04W72/14

摘要： Methods to manage multiple component carriers (CCs) efficiently in a mobile network with carrier aggregation (CA) enabled are proposed. For CC activation/deactivation, a single LCID value is used to represent both activation and deactivation command. A single command with multiple instructions is provided to activate and/or deactivate multiple CCs. In addition, unnecessary re-activation or re-inactivation of a CC is prevented, and explicit feedback for activation/deactivation is considered. For scheduling mechanism, a novel buffer status reporting (BSR) procedure is provided, where only one BSR is calculated after preparing all the transport blocks (TB) within one transmission time interval (TTI). Novel power headroom reporting (PHR) format and trigger are also provided. For DL-UL linking, various linking types are created based on whether there is carrier indicator field (CIF) in DL grant or UL grant. The various linking types are used in different applications to improve scheduling flexibility and load balancing.

摘要翻译： 提出了在启用载波聚合（CA）的移动网络中有效管理多分量载波（CC）的方法。 对于CC激活/去激活，单个LCID值用于表示激活和停用命令。 提供具有多个指令的单个命令以激活和/或去激活多个CC。 另外，不必要地重新激活或重新激活CC，并且考虑了激活/去激活的显式反馈。 对于调度机制，提供了一种新的缓冲状态报告（BSR）过程，其中在一个传输时间间隔（TTI）中准备所有传输块（TB）之后仅计算一个BSR。 还提供了新的功率余量报告（PHR）格式和触发。 对于DL-UL链接，基于DL授权或UL授权中是否存在载波指示符字段（CIF）来创建各种链接类型。 各种链接类型用于不同的应用程序，以提高调度灵活性和负载平衡。

公开(公告)号：US20110199945A1

公开(公告)日：2011-08-18

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

IPC分类号： H04B7/208 ,  H04W4/00 ,  H04J1/00

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。