公开(公告)号：US20160050687A1

公开(公告)日：2016-02-18

申请号：US14779176

申请日：2014-04-03

申请人： Huamin CHEN ,  Pei-Kai LIAO ,  Xiangyang ZHUANG

发明人： Hua-Min CHEN ,  Pei-Kai LIAO ,  Xiangyang ZHUANG

IPC分类号： H04W72/12

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

摘要： A method and apparatus for obtaining scheduling information of a data channel is disclosed. The 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.

摘要翻译： 公开了一种获取数据信道调度信息的方法和装置。 该方法包括：通过解码动态指示符信道来确定第一组无线电资源，其中动态指示符信道指示第一组无线电资源的位置; 检测所确定的第一组无线电资源中的物理控制信道; 以及从解码的物理控制信道获取携带消息的数据信道的调度信息。

公开(公告)号：US20150341956A1

公开(公告)日：2015-11-26

申请号：US14758894

申请日：2014-01-14

申请人： Feifei SUN ,  Xiangyang ZHUANG ,  Pei-Kai LIAO

发明人： Feifei SUN ,  Xiangyang ZHUANG ,  Pei-Kai LIAO

IPC分类号： H04W72/12 ,  H04L5/00 ,  H04W72/04

CPC分类号： H04W72/1289 ,  H04L1/0046 ,  H04L1/1861 ,  H04L5/0001 ,  H04L5/0053 ,  H04W72/042 ,  H04W88/02

摘要： A method for transport block transmission and blind reception is disclosed. The method is used in an UE and includes: receiving multiple candidate transport blocks, wherein each candidate transport block occupies a set of radio resources; and decoding the candidate transport blocks according to pre-defined encoding information to detect a potential transport block intended for the UE.

摘要翻译： 公开了一种用于传输块传输和盲接收的方法。 该方法在UE中使用并且包括：接收多个候选传输块，其中每个候选传输块占用一组无线电资源; 以及根据预先定义的编码信息对所述候选传输块进行解码，以检测针对所述UE的潜在传输块。

公开(公告)号：US08873489B2

公开(公告)日：2014-10-28

申请号：US13463113

申请日：2012-05-03

申请人： Pei-Kai Liao ,  Chih-Yuan Lin ,  Yih-Shen Chen

发明人： Pei-Kai Liao ,  Chih-Yuan Lin ,  Yih-Shen Chen

IPC分类号： H04W4/00 ,  H04J1/00 ,  H04W72/04 ,  H04W28/06

CPC分类号： H04W72/042 ,  H04L5/0051 ,  H04L5/0094 ,  H04W28/06

摘要： Signaling methods for UE-specific downlink control channels in OFDMA systems are provided. In a first method, a dynamic downlink signaling in cell-specific radio resources is used to signal UE-specific downlink control channel in UE-specific radio resources. In LTE, a specific DCI format in PDCCH is used to dynamically signal the UE-specific downlink control channel X-PDCCH that resides in legacy PDSCH region. In a second method, a semi-static higher-layer signaling is used to signal UE-specific downlink control channel in UE-specific radio resources. In LTE, RRC signaling is used to semi-statically signal the UE-specific downlink control channel X-PDCCH that resides in legacy PDSCH region. By using UE-specific downlink control channels, significant control overhead reduction can be achieved.

摘要翻译： 提供OFDMA系统中针对UE专用下行链路控制信道的信令方法。 在第一种方法中，小区专用无线电资源中的动态下行链路信令用于在特定于UE的无线电资源中用信号通知UE特定的下行链路控制信道。 在LTE中，使用PDCCH中的特定DCI格式来动态地发送驻留在传统PDSCH区域中的UE特定的下行链路控制信道X-PDCCH。 在第二种方法中，半静态上层信令用于在特定UE的无线电资源中用信号通知UE特定的下行链路控制信道。 在LTE中，RRC信令用于半驻留在传统PDSCH区域中的UE专用下行链路控制信道X-PDCCH。 通过使用UE特定的下行链路控制信道，可以实现显着的控制开销降低。

公开(公告)号：US08817647B2

公开(公告)日：2014-08-26

申请号：US13396562

申请日：2012-02-14

申请人： Pei-Kai Liao ,  Chih-Yuan Lin

发明人： Pei-Kai Liao ,  Chih-Yuan Lin

IPC分类号： H04L1/00

CPC分类号： H04W72/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0645 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/003 ,  H04L1/0031 ,  H04L5/001 ,  H04L5/0057 ,  H04L2025/03808 ,  H04W24/10

摘要： A method of determining priority rules for periodic CSI reporting in carrier aggregation is proposed. A UE obtains channel state information (CSI) feedback for multiple downlink component carriers (CCs) in a multi-carrier wireless communication network. Each downlink CC is associated with a feedback mode, and each feedback mode comprises a set of feedback types to be reported to a base station at time slots configured by an upper layer. The UE then determines a prioritized downlink CC for CSI reporting based on priority levels of the feedback types to be transmitted for each downlink CC at a given time slot. The UE then transmits the corresponding CSI feedback for the prioritized downlink CC at the given time slot via a feedback channel over a primary uplink CC. In one embodiment, different feedback types are prioritized by groups, and each group has several feedback types sharing the same priority.

摘要翻译： 提出了一种确定载波聚合中周期性CSI报告优先权规则的方法。 UE在多载波无线通信网络中获得多个下行链路分量载波（CC）的信道状态信息（CSI）反馈。 每个下行链路CC与反馈模式相关联，并且每个反馈模式包括将由上层配置的时隙向基站报告的一组反馈类型。 然后，UE基于在给定时隙处针对每个下行链路CC发送的反馈类型的优先级来确定用于CSI报告的优先级下行链路CC。 然后，UE经由主上行链路CC上的反馈信道在给定时隙上为优先化的下行链路CC发送相应的CSI反馈。 在一个实施例中，不同的反馈类型由组优先，并且每个组具有共享相同优先级的多个反馈类型。

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：US20130039199A1

公开(公告)日：2013-02-14

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： H04W24/00

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）或副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：US20120281646A1

公开(公告)日：2012-11-08

申请号：US13463113

申请日：2012-05-03

申请人： Pei-Kai Liao ,  Chih-Yuan Lin ,  Yih-Shen Chen

发明人： Pei-Kai Liao ,  Chih-Yuan Lin ,  Yih-Shen Chen

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04L5/0051 ,  H04L5/0094 ,  H04W28/06

摘要： Signaling methods for UE-specific downlink control channels in OFDMA systems are provided. In a first method, a dynamic downlink signaling in cell-specific radio resources is used to signal UE-specific downlink control channel in UE-specific radio resources. In LTE, a specific DCI format in PDCCH is used to dynamically signal the UE-specific downlink control channel X-PDCCH that resides in legacy PDSCH region. In a second method, a semi-static higher-layer signaling is used to signal UE-specific downlink control channel in UE-specific radio resources. In LTE, RRC signaling is used to semi-statically signal the UE-specific downlink control channel X-PDCCH that resides in legacy PDSCH region. By using UE-specific downlink control channels, significant control overhead reduction can be achieved.

摘要翻译： 提供OFDMA系统中针对UE专用下行链路控制信道的信令方法。 在第一种方法中，小区专用无线电资源中的动态下行链路信令用于在特定于UE的无线电资源中用信号通知UE特定的下行链路控制信道。 在LTE中，使用PDCCH中的特定DCI格式来动态地发送驻留在传统PDSCH区域中的UE特定的下行链路控制信道X-PDCCH。 在第二种方法中，半静态上层信令用于在特定UE的无线电资源中用信号通知UE特定的下行链路控制信道。 在LTE中，RRC信令用于半驻留在传统PDSCH区域中的UE专用下行链路控制信道X-PDCCH。 通过使用UE特定的下行链路控制信道，可以实现显着的控制开销降低。

公开(公告)号：US20110171949A1

公开(公告)日：2011-07-14

申请号：US12930453

申请日：2011-01-07

申请人： Pei-Kai Liao ,  Yih-Shen Chen ,  Kuhn-Chang Lin ,  York Ted Su

发明人： Pei-Kai Liao ,  Yih-Shen Chen ,  Kuhn-Chang Lin ,  York Ted Su

IPC分类号： H04W4/00

CPC分类号： H04W56/0045 ,  H04W28/04 ,  H04W48/08 ,  H04W48/16 ,  H04W56/0015 ,  H04W84/045

摘要： A two-step uplink synchronization method is provided for uplink synchronization between a mobile station and a pico/femto base station that is deployed together with an overlay macro/micro base station. In a first step, the pico/femto BS encodes and broadcasts UL transmission timing advance offset information via a broadcast channel. The MS decodes the received UL transmission timing advance offset information and advances its uplink timing for uplink ranging or reference signal transmission based on the decoded offset value. In a second step, the MS and the pico/femto BS performs regular uplink synchronization and uplink access. In one example, the UL transmission timing advance offset information indicates a round-trip propagation time of radio signals between the pico/femto base station and the overlay macro/micro base station. By using the two-step uplink synchronization method, a unified synchronous ranging channel may be used for ranging and UL access in pico/femtocells with reduced interference.

摘要翻译： 提供了两步上行同步方法，用于与覆盖宏/微基站一起部署的移动台和微微/毫微微基站之间的上行链路同步。 在第一步中，微微/毫微微BS经由广播信道编码和广播UL传输定时提前偏移信息。 MS对所接收的UL传输定时提前偏移信息进行解码，并基于解码的偏移值推进其上行链路测距或参考信号传输的上行链路定时。 在第二步中，MS和微微/毫微微BS执行常规的上行链路同步和上行链路接入。 在一个示例中，UL传输定时提前偏移信息指示微微/毫微微基站和重叠宏/微基站之间的无线电信号的往返传播时间。 通过使用两步上行同步方法，统一的同步测距信道可以用于具有减小的干扰的微微/毫微微小区中的测距和UL接入。

公开(公告)号：US20100220651A1

公开(公告)日：2010-09-02

申请号：US12660440

申请日：2010-02-26

申请人： Yih-Shen Chen ,  Pei-Kai Liao ,  Chih-Yuan Lin

发明人： Yih-Shen Chen ,  Pei-Kai Liao ,  Chih-Yuan Lin

IPC分类号： H04W40/00 ,  H04J1/00

CPC分类号： H04W72/082 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/005 ,  H04L5/0073 ,  H04L25/0232 ,  H04W48/12

摘要： A method for broadcasting system information via a broadcast channel (BCH) in an OFDMA system is provided. The BCH comprises one or more two-dimensional resource blocks. A plurality of pilot tones and a plurality of data tones are positioned within each resource block. The system information is mapped onto the plurality of data tones. In one embodiment, the plurality of pilot tones are located in configurable positions such that pilot tones of the same resource blocks transmitted by different base stations in the OFDMA system are interlaced to reduce pilot-to-pilot collision. In another embodiment, data tones that are located in pilot positions of other adjacent cells are nullified to reduce data-to-pilot collision. In one novel aspect, the property of interlaced pilot patterns and tone nullification is leveraged to estimate interference second-order statistics, which facilitates receiver implementation and improves receiver performance.

摘要翻译： 提供了一种通过OFDMA系统中的广播信道（BCH）广播系统信息的方法。 BCH包括一个或多个二维资源块。 多个导频音和多个数据音调位于每个资源块内。 系统信息被映射到多个数据音调上。 在一个实施例中，多个导频音调位于可配置位置，使得由OFDMA系统中的不同基站发送的相同资源块的导频音调隔行扫描以减少导频到导频的冲突。 在另一个实施例中，位于其他相邻小区的导频位置的数据音调被消除以减少数据到导频的碰撞。 在一个新颖的方面，利用隔行导频模式和音调无效的性质来估计干扰二阶统计，这有助于接收机实现并提高接收机性能。