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1. 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。

2. 发明申请

WO2010003373A1 METHOD AND APPARATUS OF DATA TRANSMISSION OVER GUARD SUB-CARRIERS IN MULTI-CARRIER OFDM SYSTEMS 审中-公开
标题翻译：数据传输在多载波OFDM系统中的保护子载波的数据传输方法与装置
公开(公告)号：WO2010003373A1
公开(公告)日：2010-01-14
申请号：PCT/CN2009/072677
申请日：2009-07-07
申请人： MEDIATEK INC. , FU, I-Kang , CHENG, Po-Yuen , LIAO, Pei-Kai
发明人： FU, I-Kang , CHENG, Po-Yuen , LIAO, Pei-Kai
IPC分类号： H04L27/26 , H04L29/08
CPC分类号： H04W72/0453 , H04J11/00 , H04L5/0007 , H04L5/001 , H04L5/0023 , H04L5/0039 , H04L5/0044 , H04L5/0048 , H04L5/0053 , H04L25/03343 , H04L25/03821 , H04L27/2626 , H04L27/2646 , H04L27/2666 , H04W72/02
摘要： A method of data transmi ssion over guard sub-carrier s is provided in a multi-carrier OFDM system. Adjacent radio fr equency (RF) carriers are used to carry radio signals transmitted through adjacent frequency channels. A plurality of guard sub-carriers between adjacent frequenc y channels are aligned and identified for data transmission in a pre-defined ph ysical resource unit. The identified guard sub-carriers do not overlap with normal da ta sub-carriers of the radio signals transmitted through the adja cent frequency channels. At least one of the identified guard sub-carriers is reserved as NULL sub- carrier. A flexible multi-carrier transceiver architecture is also provided in a multi-carrier OFDM system. Different multi-carrier and/or MIMO/SISO data transmission schemes are implemented by adaptively reconfigure same hardware modules including common MAC layer module, physical layer entities, and RF entities. Furthermore, the flexible multi-carrier tr ansceiver architecture can be used to support data transmission over guard sub-carriers.
摘要翻译：在多载波OFDM系统中提供了一种在保护子载波上进行数据传输的方法。相邻无线电频率（RF）载波用于承载通过相邻频道发射的无线电信号。在相邻频道之间的多个保护子载波被对齐并被识别以用于预定义的语音资源单元中的数据传输。所识别的保护子载波不与通过相邻频道发送的无线电信号的正常大小副载波重叠。所确定的保护子载波中的至少一个被保留为空子载波。在多载波OFDM系统中还提供灵活的多载波收发器架构。通过自适应地重新配置包括公共MAC层模块，物理层实体和RF实体的相同硬件模块来实现不同的多载波和/或MIMO / SISO数据传输方案。此外，灵活的多载波侦听器架构可以用于支持保护子载波上的数据传输。

3. 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。

4. 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。

5. 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。

6. 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。

7. 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。

8. 发明申请

WO2010075796A1 PHYSICAL STRUCTURE AND SEQUENCE DESIGN OF MIDAMBLE IN OFDMA SYSTEMS 审中-公开
标题翻译： OFDMA系统中的MIDAMBYS的物理结构和序列设计
公开(公告)号：WO2010075796A1
公开(公告)日：2010-07-08
申请号：PCT/CN2009/076316
申请日：2009-12-31
申请人： MEDIATEK INC. , LIN, Chih-Yuan , LIAO, Pei-Kai
发明人： LIN, Chih-Yuan , LIAO, Pei-Kai
IPC分类号： H04W4/18
CPC分类号： H04J11/005 , H04L5/0007 , H04L5/005 , H04L27/261 , H04L2025/03796
摘要： In wireless OFDMA systems, midamble is used to facilitate downlink (DL) channel estimation. Midamble signals are transmitted by a base station via a midamble channel allocated in a DL subframe. In a novel symbol-based midamble channel allocation scheme, a midamble channel is allocated in the first or the last OFDM symbol of multiple resource blocks of the subframe, while the remaining consecutive OFDM symbols are used for data transmission. The symbol-based midamble channel provides good coexistence between midamble signals and pilot signals without inducing additional limitation or complexity. Under a novel midamble channel and sequence arrangement, both code sequence and either time-domain or frequency-domain location degrees-of-freedom are considered such that the required number of midamble sequences is substantially smaller than the number of strong interferences. In addition, different midamble sequences are systematically generated based on a base sequence such that the receiving mobile station does not need to memorize all the different code sequences.
摘要翻译：在无线OFDMA系统中，使用midamble来促进下行链路（DL）信道估计。 Midamble信号由基站经由在DL子帧中分配的中置码信道发送。在一种新颖的基于符号的中间码信道分配方案中，在子帧的多个资源块的第一个或最后一个OFDM符号中分配一个中继码信道，而其余的连续的OFDM符号用于数据传输。基于符号的中置码信道在中置信号和导频信号之间提供良好的共存，而不会引起额外的限制或复杂性。在新颖的中间码信道和序列排列下，考虑码序列和时域或频域位置自由度，使得所需数量的中继码序列显着小于强干扰数。此外，基于基本序列系统地生成不同的中间码序列，使得接收移动台不需要记住所有不同的代码序列。

9. 发明申请

WO2012149908A1 SIGNALING METHODS FOR UE-SPECIFIC DYNAMIC DOWNLINK SCHEDULER IN OFDMA SYSTEMS 审中-公开
标题翻译： OFDMA系统中UE特定动态下行链路调度器的信令方法
公开(公告)号：WO2012149908A1
公开(公告)日：2012-11-08
申请号：PCT/CN2012/075080
申请日：2012-05-04
申请人： MEDIATEK INC. , LIAO, Pei-Kai , LIN, Chih-Yuan , CHEN, Yih-Shen
发明人： LIAO, Pei-Kai , LIN, Chih-Yuan , CHEN, Yih-Shen
IPC分类号： H04W72/00
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。

10. 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。

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