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：US20120250520A1

公开(公告)日：2012-10-04

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： H04W72/04 ,  H04W24/00

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：US09137804B2

公开(公告)日：2015-09-15

申请号：US13527286

申请日：2012-06-19

申请人： Shiang-Jiun Lin ,  Pei-Kai Liao ,  Meng-Ying Tsai ,  Yih-Shen Chen

发明人： Shiang-Jiun Lin ,  Pei-Kai Liao ,  Meng-Ying Tsai ,  Yih-Shen Chen

IPC分类号： H04J3/00 ,  H04J3/02 ,  H04W72/04 ,  H04W36/00 ,  H04J3/16 ,  H04W72/08 ,  H04L5/00 ,  H04L5/14 ,  H04B7/212 ,  H04W4/00

CPC分类号： H04W72/048 ,  H04L5/0053 ,  H04L5/0094 ,  H04L5/1469 ,  H04W72/0406 ,  H04W72/0453 ,  H04W72/082 ,  Y02D70/1262

摘要： Systems and Methods for supporting carrier aggregation with different TDD configurations are proposed. In a first novel aspect, corresponding apparatus structure is described. In a second novel aspect, aggregation constraint is discussed. In a third novel aspect, transceiving mechanisms over multiple component carriers in DL/UL overlapped subframes are proposed. For simultaneous DL/UL transceiving, band combination indication methods are proposed, and HARQ feedback mechanisms are proposed. For non-simultaneous DL/UL transceiving, transceiving configuration methods are proposed, and the same HARQ feedback mechanisms are proposed. In a fourth novel aspect, CQI/RLM/RRM measurement mechanisms are proposed. In a fifth novel aspect, UE capability signaling mechanisms are proposed. The objective is to support flexible aggregation, to enhance DL data throughout, and to improve UL transmit power efficiency.

摘要翻译： 提出了用于支持具有不同TDD配置的载波聚合的系统和方法。 在第一新颖方面，描述了相应的装置结构。 在第二个新颖的方面，讨论了聚合约束。 在第三个新颖的方面，提出了在DL / UL重叠子帧中的多分量载波上的收发机制。 为了同时进行DL / UL收发，提出了频带组合指示方法，提出了HARQ反馈机制。 对于非同步DL / UL收发，提出了收发配置方法，提出了相同的HARQ反馈机制。 在第四个新颖的​​方面，提出了CQI / RLM / RRM测量机制。 在第五个新颖的方面，提出了UE能力信令机制。 目的是支持灵活的聚合，提高DL数据的整体性能，并提高UL的传输功率效率。

公开(公告)号：US20120327821A1

公开(公告)日：2012-12-27

申请号：US13527286

申请日：2012-06-19

申请人： Shiang-Jiun Lin ,  Pei-Kai Liao ,  Meng-Ying Tsai ,  Yih-Shen Chen

发明人： Shiang-Jiun Lin ,  Pei-Kai Liao ,  Meng-Ying Tsai ,  Yih-Shen Chen

IPC分类号： H04J3/02 ,  H04W72/04 ,  H04W36/00 ,  H04J3/16

CPC分类号： H04W72/048 ,  H04L5/0053 ,  H04L5/0094 ,  H04L5/1469 ,  H04W72/0406 ,  H04W72/0453 ,  H04W72/082 ,  Y02D70/1262

摘要： Systems and Methods for supporting carrier aggregation with different TDD configurations are proposed. In a first novel aspect, corresponding apparatus structure is described. In a second novel aspect, aggregation constraint is discussed. In a third novel aspect, transceiving mechanisms over multiple component carriers in DL/UL overlapped subframes are proposed. For simultaneous DL/UL transceiving, band combination indication methods are proposed, and HARQ feedback mechanisms are proposed. For non-simultaneous DL/UL transceiving, transceiving configuration methods are proposed, and the same HARQ feedback mechanisms are proposed. In a fourth novel aspect, CQI/RLM/RRM measurement mechanisms are proposed. In a fifth novel aspect, UE capability signaling mechanisms are proposed. The objective is to support flexible aggregation, to enhance DL data throughout, and to improve UL transmit power efficiency.

摘要翻译： 提出了用于支持具有不同TDD配置的载波聚合的系统和方法。 在第一新颖方面，描述了相应的装置结构。 在第二个新颖的方面，讨论了聚合约束。 在第三个新颖的方面，提出了在DL / UL重叠子帧中的多分量载波上的收发机制。 为了同时进行DL / UL收发，提出了频带组合指示方法，提出了HARQ反馈机制。 对于非同步DL / UL收发，提出了收发配置方法，提出了相同的HARQ反馈机制。 在第四个新颖的​​方面，提出了CQI / RLM / RRM测量机制。 在第五个新颖的方面，提出了UE能力信令机制。 目的是支持灵活的聚合，提高DL数据的整体性能，并提高UL的传输功率效率。

公开(公告)号：US08964658B2

公开(公告)日：2015-02-24

申请号：US13065797

申请日：2011-03-30

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

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

IPC分类号： H04W4/00 ,  H04W74/08 ,  H04W72/04 ,  H04W72/12

CPC分类号： H04W74/0841 ,  H04W72/0453 ,  H04W72/0466 ,  H04W72/1284

摘要： A method for contention-based (CB) uplink transmission in a wireless communication network is provided. A base station (eNB) first transmits CB configuration information and CB grant to a user equipment (UE). The UE derives a plurality of transmission opportunities from the uplink CB grant and in response transmits uplink CB data via one of the transmission opportunities. The UE then receives an acknowledgment from the serving base station. If the uplink CB data is non-decodable by the eNB due to multiple contention UEs, then the UE retransmits the uplink data in response to a negative acknowledgment. In one novel aspect, the uplink transmission radio resource carriers both the uplink CB data and UE-selected signature information. In one embodiment, the UE-selected signature information is transmitted via pilot tones. By eliminating a separate phase of contention resolution, the overall latency of CB transmission is reduced and transmission efficiency is improved.

摘要翻译： 提供了一种在无线通信网络中基于争用（CB）上行链路传输的方法。 基站（eNB）首先向用户设备（UE）发送CB配置信息和CB授权。 UE从上行链路CB授权中导出多个传输机会，并且响应于传输机会中的一个发送上行链路CB数据。 然后，UE从服务基站接收确认。 如果上行CB数据由于多个争用UE而被eNB无法解码，则UE响应于否定确认重发上行链路数据。 在一个新颖的方面，上行链路传输无线电资源承载上行链路CB数据和UE选择的签名信息。 在一个实施例中，经由导频音发送UE选择的签名信息。 通过消除争用解决的单独阶段，CB传输的总体延迟降低，传输效率提高。

公开(公告)号：US20110243080A1

公开(公告)日：2011-10-06

申请号：US13065797

申请日：2011-03-30

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

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

IPC分类号： H04W72/04

CPC分类号： H04W74/0841 ,  H04W72/0453 ,  H04W72/0466 ,  H04W72/1284

摘要： A method for contention-based (CB) uplink transmission in a wireless communication network is provided. A base station (eNB) first transmits CB configuration information and CB grant to a user equipment (UE). The UE derives a plurality of transmission opportunities from the uplink CB grant and in response transmits uplink CB data via one of the transmission opportunities. The UE then receives an acknowledgment from the serving base station. If the uplink CB data is non-decodable by the eNB due to multiple contention UEs, then the UE retransmits the uplink data in response to a negative acknowledgment. In one novel aspect, the uplink transmission radio resource carriers both the uplink CB data and UE-selected signature information. In one embodiment, the UE-selected signature information is transmitted via pilot tones. By eliminating a separate phase of contention resolution, the overall latency of CB transmission is reduced and transmission efficiency is improved.

摘要翻译： 提供了一种在无线通信网络中基于争用（CB）上行链路传输的方法。 基站（eNB）首先向用户设备（UE）发送CB配置信息和CB授权。 UE从上行链路CB授权中导出多个传输机会，并且响应于传输机会中的一个发送上行链路CB数据。 然后，UE从服务基站接收确认。 如果上行CB数据由于多个争用UE而被eNB无法解码，则UE响应于否定确认重发上行链路数据。 在一个新颖的方面，上行链路传输无线电资源承载上行链路CB数据和UE选择的签名信息。 在一个实施例中，经由导频音发送UE选择的签名信息。 通过消除争用解决的单独阶段，CB传输的总体延迟降低，传输效率提高。

公开(公告)号：US08548082B2

公开(公告)日：2013-10-01

申请号：US12589449

申请日：2009-10-23

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： H04B7/02

CPC分类号： H04L5/0023 ,  H04L1/0072 ,  H04L1/0631 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/0228

摘要： A contention-based multi-antenna access request transmission/receiving procedure in MIMO OFDM/OFDMA systems is provided to reduce access latency. A mobile station encodes and transmits an access request over a shared access channel using multiple transmitting antennas, while a base station receives and decodes a number of access requests using multiple receiving antennas. Each access request comprises an access indictor and an access message. In a first MIMO scheme, the mobile station transmits the access indicator as preambles, while the access message is encoded by SFBC/STBC to obtain spatial diversity. At the receive side, the access indicator is exploited as pilots for channel estimation. The access message is decoded using SFBC/STBC decoding algorithm. In a second MIMO scheme, the mobile station performs precoding/beamforming for each of the transmitting antenna to obtain beamforming gain, while the base station performs virtual beam matching based on the detection results of the access indicators.

摘要翻译： 提供MIMO OFDM / OFDMA系统中的基于竞争的多天线接入请求发送/接收过程以减少接入等待时间。 移动台通过使用多个发射天线的共享接入信道来编码和发送接入请求，而基站使用多个接收天线接收并解码多个接入请求。 每个访问请求包括访问指示符和访问消息。 在第一MIMO方案中，移动站将接入指示符作为前导码发送，而接入消息由SFBC / STBC编码以获得空间分集。 在接收端，接入指示器被用作信道估计的导频。 访问消息使用SFBC / STBC解码算法进行解码。 在第二MIMO方案中，移动台对于发射天线中的每一个执行预编码/波束成形，以获得波束成形增益，而基站基于访问指示符的检测结果执行虚拟波束匹配。

公开(公告)号：US08345623B2

公开(公告)日：2013-01-01

申请号：US12653360

申请日：2009-12-11

申请人： Yih-Shen Chen ,  Pei-Kai Liao

发明人： Yih-Shen Chen ,  Pei-Kai Liao

IPC分类号： H04Q7/00

CPC分类号： H04L27/2607 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0073 ,  H04L27/2655 ,  H04W56/0005

摘要： A unified synchronous ranging channel is provided. The unified synchronous ranging channel has a ranging cyclic prefix length that is the same as a cyclic prefix length of a data channel. The unified synchronous ranging channel is used for one of initial ranging, handover ranging, and periodic ranging between a mobile station and a femto base station. In one embodiment, the synchronous ranging channel spans over a two-dimensional radio resource region having a first number of subcarriers along frequency domain, a second number of OFDM symbols along time domain, and a third number of time-domain repetition. At the transmit side, a ranging code sequence is generated by applying a fixed time-domain cyclic shift per OFDM symbol to a root sequence. At the receive side, the ranging code sequence is decoded by using a summation module, a likelihood-combining module, and a modified peak test module that normalizes a peak value.

摘要翻译： 提供统一的同步测距通道。 统一同步测距信道具有与数据信道的循环前缀长度相同的测距循环前缀长度。 统一的同步测距信道用于移动台和毫微微基站之间的初始测距，切换测距和周期性测距之一。 在一个实施例中，同步测距信道跨越具有沿频域的第一数量子载波的二维无线电资源区域，沿时域的第二数量的OFDM符号和第三数量的时域重复。 在发送侧，通过对根序列应用每OFDM符号的固定时域循环移位来生成测距码序列。 在接收侧，通过使用求和模块，似然合成模块和归一化峰值的修改峰值测试模块对测距代码序列进行解码。

公开(公告)号：US20110117926A1

公开(公告)日：2011-05-19

申请号：US12927458

申请日：2010-11-16

申请人： Chien-Hwa Hwang ,  Pei-Kai Liao ,  Yih-Shen Chen

发明人： Chien-Hwa Hwang ,  Pei-Kai Liao ,  Yih-Shen Chen

IPC分类号： H04W4/02

CPC分类号： H04W64/00

摘要： A network-based positioning mechanism is proposed. A serving BS first allocates radio resource to a target UE for network-based positioning in a wireless communication system. The target UE then transmits a positioning reference signal (PRS) to the serving BS and a plurality of cooperative BSs at the same time instant. All the cooperative BSs then conduct PRS detection and TOA measurements. Finally, the serving BS conducts positioning estimation based on the TOA measurement results. In one novel aspect, only one PRS transmission is required in one positioning opportunity for one positioning result. Candidates of PRS are selected with respect to different scenarios and allocated in a PRS resource region. Multiple positioning opportunities and multiple reference signals may be multiplexed over time, frequency or code domain in the PRS resource region. In one embodiment, the PRS is configured in such a way that both radio resource consumption and interference is minimized.

摘要翻译： 提出了一种基于网络的定位机制。 服务BS首先向无线通信系统中的基于用于基于网络的定位的目标UE分配无线电资源。 目标UE然后在同一时刻向服务BS和多个协作BS发送定位参考信号（PRS）。 所有合作BS随后进行PRS检测和TOA测量。 最后，服务BS基于TOA测量结果进行定位估计。 在一个新颖的方面，在一个定位结果的一个定位机会中仅需要一个PRS传输。 针对不同场景选择PRS的候选者，并分配在PRS资源区域中。 多个定位机会和多个参考信号可以在PRS资源区域中随时间，频率或代码域被复用。 在一个实施例中，PRS被配置为使得无线电资源消耗和干扰都被最小化。

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。