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1. 发明申请

WO2010108393A1 LOW LATENCY SYNCHRONIZATION SCHEME FOR WRIELESS OFDMA SYSTEMS 审中-公开
标题翻译：用于无线OFDMA系统的低延迟同步方案
公开(公告)号：WO2010108393A1
公开(公告)日：2010-09-30
申请号：PCT/CN2010/070119
申请日：2010-01-11
申请人： MEDIATEK INC. , CHANG, Yu-Hao , LIAO, Pei-Kai
发明人： CHANG, Yu-Hao , LIAO, Pei-Kai
IPC分类号： H04L27/26
CPC分类号： H04L5/0053 , H04L27/2602 , H04L27/2656 , H04W56/00
摘要： In advanced wireless OFDMA communication systems, hierarchical synchronization is adopted to synchronize between a base station (BS) and a mobile station (MS). In a hierarchical synchronization architecture, primary advanced preamble (PA-Preamble) is used for coarse time domain synchronization while cell ID is detected using several accumulated secondary advanced preambles (SA-Preambles). Network entry latency can be reduced by adjusting the relative location of superframe header (SFH), PA-Preamble and SA-Preambles within a superframe. Three different synchronization channel (SCH) architectures are proposed to provide different tradeoffs between network entry latency and the robustness of SA-Preamble design and cell ID detection.
摘要翻译：在先进的无线OFDMA通信系统中，采用分层同步来在基站（BS）和移动台（MS）之间进行同步。在分层同步架构中，主要的高级前同步码（PA-Preamble）用于粗略的时域同步，同时使用几个累加的辅助高级前导码（SA-前导码）来检测小区ID。可以通过调整超帧中的超帧头（SFH），PA前导码和SA-前导码的相对位置来减少网络进入延迟。提出了三种不同的同步信道（SCH）架构，以提供网络入口延迟与SA-前导码设计和小区ID检测的鲁棒性之间的不同权衡。

2. 发明申请

WO2010075804A1 CHANNEL INTERLEAVER HAVING A CONSTELLATION-BASED BLOCK-WISE PERMUATION MODULE 审中-公开
标题翻译：具有基于智能化的块式智能模块的信道交换
公开(公告)号：WO2010075804A1
公开(公告)日：2010-07-08
申请号：PCT/CN2009/076334
申请日：2009-12-31
申请人： MEDIATEK INC. , WU, Ciou-Ping , LIAO, Pei-Kai , CHANG, Yu-Hao , CHEN, Yih-Shen
发明人： WU, Ciou-Ping , LIAO, Pei-Kai , CHANG, Yu-Hao , CHEN, Yih-Shen
IPC分类号： H04B7/02
CPC分类号： H04L1/0066 , H04L1/0042 , H04L1/0071 , H04L27/34
摘要： ABSTRACT 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 5 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 10 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. 15 20
摘要翻译：摘要信道交织器包括基于星座的新的置换模块。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5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编码器生成的编码比特的相同组10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。 15 20

3. 发明申请

WO2011003350A1 PREAMBLE PARTITION AND CELL IDENTIFICATION PROCEDURE IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：无线通信系统中的前置分区和小区识别程序
公开(公告)号：WO2011003350A1
公开(公告)日：2011-01-13
申请号：PCT/CN2010/075026
申请日：2010-07-07
申请人： MEDIATEK INC. , CHANG, Yu-Hao , CHEN, Yih-Shen , LIAO, Pei-Kai
发明人： CHANG, Yu-Hao , CHEN, Yih-Shen , LIAO, Pei-Kai
IPC分类号： H04W48/10 , H04W48/20
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。

4. 发明申请

WO2010075806A1 SYNCHRONIZATION CHANNEL FOR ADVANCED WIRELESS OFDM/OFDMA SYSTEMS 审中-公开
标题翻译：用于高级无线OFDM / OFDMA系统的同步信道
公开(公告)号：WO2010075806A1
公开(公告)日：2010-07-08
申请号：PCT/CN2009/076346
申请日：2009-12-31
申请人： MEDIATEK INC. , LIAO, Pei-Kai , CHANG, Yu-Hao , WU, Kuo-Ming
发明人： LIAO, Pei-Kai , CHANG, Yu-Hao , WU, Kuo-Ming
IPC分类号： H04W56/00
CPC分类号： H04L5/005 , H04L27/2601 , H04W56/0015 , H04W72/04
摘要： A hierarchical downlink (DL) synchronization channel (SCH) is provided for wireless OFDM/OFDMA systems. The SCH includes a Primary SCH (P-SCH) for carrying PA-Preambles used for coarse timing and frequency synchronization, and a Secondary SCH (S-SCH) for carrying SA-Preambles used for cell ID detection. The total time length occupied by P-SCH and S-SCH is equal to one OFDM symbol time length of a data channel, and S-SCH is located in front of P-SCH in each DL frame. A perfect multi-period time-domain structure is created and maintained in P-SCH to increase preciseness of frame boundary estimation. With overlapping deployment of macrocells and femtocells, a predefined SCH configuration scheme is provided to separate frequency subbands used for macrocells and femtocells such that interferences in S-SCH can be mitigated. In addition, a self-organized SCH configuration scheme is provided to allow more flexibility for femtocells to avoid or introduce interference in S-SCH.
摘要翻译：为无线OFDM / OFDMA系统提供分层下行链路（DL）同步信道（SCH）。 SCH包括用于携带用于粗定时和频率同步的PA前导的主SCH（P-SCH）和用于携带用于小区ID检测的SA-前导的辅SCH（S-SCH）。由P-SCH和S-SCH占用的总时间长度等于数据信道的一个OFDM符号时间长度，并且S-SCH位于每个DL帧中的P-SCH前面。在P-SCH中创建并保持了完美的多周期时域结构，以增加帧边界估计的精确度。通过宏单元和毫微微小区的重叠部署，提供预定义的SCH配置方案来分离用于宏小区和毫微微小区的频率子带，使得可以减轻S-SCH中的干扰。另外，提供了自组织的SCH配置方案，以允许毫微微小区更灵活地避免或引入S-SCH中的干扰。

5. 发明申请

WO2011120443A1 METHODS OF CONTENTION-BASED TRANSMISSION 审中-公开
标题翻译：基于内容传输的方法
公开(公告)号：WO2011120443A1
公开(公告)日：2011-10-06
申请号：PCT/CN2011/072357
申请日：2011-03-31
申请人： MEDIATEK INC. , CHEN, Yih-Shen , HSU, Chia-Chun , LIN, Chih-Yuan , LIAO, Pei-Kai
发明人： CHEN, Yih-Shen , HSU, Chia-Chun , LIN, Chih-Yuan , LIAO, Pei-Kai
IPC分类号： H04W72/14 , H04W74/00
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，UE选择的签名信息经由导频音发送。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。

6. 发明申请

WO2011082687A1 RESOURCE ALLOCATION AND SIGNALING METHOD FOR MULTI-ANTENNA LONG TERM EVOLUTION (LTE) SOUNDING 审中-公开
标题翻译：用于多天线长时间演进（LTE）声音的资源分配和信令方法
公开(公告)号：WO2011082687A1
公开(公告)日：2011-07-14
申请号：PCT/CN2011/070100
申请日：2011-01-07
申请人： MEDIATEK INC. , LIN, Chih-Yuan , LIAO, Pei-Kai
发明人： LIN, Chih-Yuan , LIAO, Pei-Kai
IPC分类号： H04W72/04
CPC分类号： H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0091 , H04W72/042
摘要： A method of multi-antenna resource allocation for uplink channel sounding in a wireless communication system is provided. A base station (eNB) first selects a number of sounding reference signal (SRS) parameters. The eNB then determines each selected SRS parameter for a first antenna of user equipment (UE) having multiple antennas. The determined parameters are jointly encoded to a first set of parameter combination using a number of signaling bits. The eNB transmits the signaling bits for the first antenna to the UE without transmitting additional signaling bits for other antennas. The UE receives the signaling bits for SRS resource allocation for the first antenna and derives a second set of parameter combination for a second antenna based on a predetermined rule. By implicitly signaling SRS resource allocation for multiple antennas, it is easy for the eNB to allocate SRS resource for different antennas of different UE with reduced overhead.
摘要翻译：提供了一种用于无线通信系统中的上行链路信道探测的多天线资源分配方法。基站（eNB）首先选择多个探测参考信号（SRS）参数。然后，eNB确定用于具有多个天线的用户设备（UE）的第一天线的每个所选择的SRS参数。所确定的参数使用多个信令位联合编码为第一组参数组合。 eNB向第一天线发送用于第一天线的信令比特，而不发送用于其他天线的附加信令比特。 UE接收用于第一天线的SRS资源分配的信令比特，并且基于预定规则导出第二天线的第二组参数组合。通过隐含地发送用于多个天线的SRS资源分配，eNB可以容易地以减少的开销为不同UE的不同天线分配SRS资源。

7. 发明申请

WO2011038699A1 CONCATENATING PRECODER SELECTION FOR OFDMA-BASED MULTI-BS MIMO 审中-公开
标题翻译：用于基于OFDM的MIMO多MIMO的预编译器选择
公开(公告)号：WO2011038699A1
公开(公告)日：2011-04-07
申请号：PCT/CN2010/077582
申请日：2010-10-08
申请人： MEDIATEK INC. , LIN, Chih-Yuan , LIAO, Pei-Kai
发明人： LIN, Chih-Yuan , LIAO, Pei-Kai
IPC分类号： H04B7/02
CPC分类号： H04B7/0639 , H04B7/022 , H04L1/06 , H04L5/0007 , H04L25/03343
摘要： A method for concatenating precoder selection is provided for orthogonal frequency division multiple access (OFDMA)-based multi-base station (BS) multiple-input multiple-output (MIMO). A cell-edge mobile station first determines precoding matrix indexes (PMIs) for a serving base station and one or more cooperative base stations to optimize system performance. The mobile station then determines a plurality of corresponding weight factors for each of the base stations to further optimize system performance. The mobile station recommends the selected PMIs and weight factors to the serving base station, which shares the PMIs and weight factors with cooperative base stations. Each base station then applies precoding using the recommended PMIs and weight factors. The weight factors are quantized to reduce computation complexity and to facilitate information feedback. In one embodiment, the weight factors are determined based on a pre-defined 3-bit uniform phase quantization rule. The concatenated precoder leads to large performance gain without introducing high computation complexity.
摘要翻译：提供了一种用于级联预编码器选择的方法，用于基于正交频分多址（multi-based）多基站（multi-based station，BS）多输入多输出（MIMO）。小区边缘移动站首先确定用于服务基站和一个或多个协作基站的优化系统性能的预编码矩阵索引（PMI）。然后，移动台确定每个基站的多个对应的权重因子，以进一步优化系统性能。移动台向服务基站推荐所选择的PMI和权重因子，其与合作基站共享PMI和权重因子。然后，每个基站使用推荐的PMI和权重因子来应用预编码。权重因子被量化以减少计算复杂性并促进信息反馈。在一个实施例中，基于预定义的3位均匀相位量化规则来确定权重因子。级联预编码器导致大的性能增益，而不会引入高计算复杂度。

8. 发明申请

WO2010003370A1 METHODS FOR TRANSCEIVING DATA IN MULTI-BAND ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS COMMUNICATIONS SYSTEM AND COMMUNICATIONS APPARATUSES UTILIZING THE SAME 审中-公开
标题翻译：用于在多频带正交频分多址接入通信系统中传输数据的方法和使用该通信系统的通信设备
公开(公告)号：WO2010003370A1
公开(公告)日：2010-01-14
申请号：PCT/CN2009/072672
申请日：2009-07-07
申请人： MEDIATEK INC. , LIAO, Pei-Kai , FU, I-Kang
发明人： LIAO, Pei-Kai , FU, I-Kang
IPC分类号： H04B1/10 , H04J11/00 , H04L27/26
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传递。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，以获得多个数字样本。快速傅里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。

9. 发明申请

WO2012109989A1 PRIORITY RULES OF PERIODIC CSI REPORTING IN CARRIER AGGREGATION 审中-公开
标题翻译：运输工具集中期间CSI报告的优先规则
公开(公告)号：WO2012109989A1
公开(公告)日：2012-08-23
申请号：PCT/CN2012/071175
申请日：2012-02-15
申请人： MEDIATEK INC. , LIAO, Pei-Kai , LIN, Chih-Yuan
发明人： LIAO, Pei-Kai , LIN, Chih-Yuan
IPC分类号： H04W72/04 , H04W72/06 , 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。

10. 发明申请

WO2011082689A1 TWO-STEP UPLINK SYNCHRONIZATION FOR PICO/FEMTOCELL 审中-公开
标题翻译： PICO / FEMTOCELL的两步上行同步
公开(公告)号：WO2011082689A1
公开(公告)日：2011-07-14
申请号：PCT/CN2011/070103
申请日：2011-01-07
申请人： MEDIATEK INC. , LIAO, Pei-Kai , CHEN, Yih-Shen , LIN, Kuhn-Chang , SU, York-Ted
发明人： LIAO, Pei-Kai , CHEN, Yih-Shen , LIN, Kuhn-Chang , SU, York-Ted
IPC分类号： H04W56/00
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。

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