公开(公告)号：US20150326347A1

公开(公告)日：2015-11-12

申请号：US14803698

申请日：2015-07-20

Applicant: APPLE INC.

Inventor： Dong-Sheng YU ,  Hosein NIKOPOURDEILAMI ,  Sophie VRZIC ,  Mo-Han FONG ,  Robert NOVAK ,  Jun YUAN

IPC: H04L1/00 ,  H03M13/29

CPC classification number: H04L1/0041 ,  H03M13/2903 ,  H04J13/16 ,  H04L1/0026 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/0067 ,  H04L1/0072 ,  H04L1/0079 ,  H04L1/0656 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0057 ,  H04W28/06

Abstract: Transmission of uplink control message for a wireless system. The uplink control message may be encoded according to one of multiple possible schemes. The choice of encoding scheme may be made based on the control message size and/or based on the available transmission resources and/or based on the detection scheme used on the receiving end. A modulation scheme may also be selected based on such factors. CDM may be used for certain control messages. Block code encoding, such as Reed-Muller encoding may be used for certain control messages. Different transmission resources may be allocated for different control message uses. The encoding specifics may be selected to obtain a certain hamming distance and/or size of the encoded message or based on other factors.

Abstract translation: 传输无线系统的上行链路控制消息。 上行链路控制消息可以根据多种可能方案之一进行编码。 可以基于控制消息大小和/或基于可用传输资源和/或基于在接收端使用的检测方案来进行编码方案的选择。 还可以基于这些因素来选择调制方案。 CDM可以用于某些控制消息。 块代码编码，如Reed-Muller编码可用于某些控制消息。 可以为不同的控制消息使用分配不同的传输资源。 可以选择编码细节以获得编码消息的某个汉明距离和/或尺寸，或者基于其他因素。

公开(公告)号：US20150271003A1

公开(公告)日：2015-09-24

申请号：US14734634

申请日：2015-06-09

Applicant: Centre of Excellence in Wireless Technology

Inventor： Kiran Kumar Kuchi ,  Deviraj Klutto Milleth Jeniston ,  Vinod Ramaswamy ,  Baskaran Dhivagar ,  Krishnamurthi Giridhar ,  Bhaskar Ramamurthi ,  Dileep Manisseri Kalathil ,  Padmanabhan Madampu Suryasarman

IPC: H04L27/26 ,  H04B7/06 ,  H04B7/04 ,  H04L27/20

CPC classification number: H04L27/2646 ,  H04B7/0456 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0656 ,  H04L5/0023 ,  H04L25/0224 ,  H04L27/20 ,  H04L27/261 ,  H04L27/2628 ,  H04L27/2636 ,  H04L27/2647 ,  H04L27/2649

Abstract: Precoding for multiple transmission streams in multiple antenna systems. Disclosed herein is a general method that transmits signal from multiple antennas using a one/two dimensional precoder. This precoder is fixed in a given resource block (RB) or slot, which is composed of P subcarriers and Q OFDM symbols (where the values for P and Q are greater than or equal to 1). The precoder in each resource block may take same or different values, which span the two dimensional time-frequency grid. The precoder is chosen as a function of either logical frequency index or physical frequency index of the RB.

Abstract translation: 在多个天线系统中的多个传输流的预编码。 这里公开的是使用一维二维预编码器从多个天线发射信号的一般方法。 该预编码器固定在由P个子载波和Q个OFDM符号（P和Q的值大于或等于1）组成的给定资源块（RB）或时隙中。 每个资源块中的预编码器可以采用跨越二维时频网格的相同或不同的值。 选择预编码器作为RB的逻辑频率索引或物理频率索引的函数。

公开(公告)号：US09130712B2

公开(公告)日：2015-09-08

申请号：US12040436

申请日：2008-02-29

Applicant: T. Keith Blankenship ,  Yufei W. Blankenship ,  Brian K. Classon ,  Ajit Nimbalker ,  Anthony R. Schooler

Inventor： T. Keith Blankenship ,  Yufei W. Blankenship ,  Brian K. Classon ,  Ajit Nimbalker ,  Anthony R. Schooler

IPC: H04L1/00 ,  H04L27/18 ,  H04L27/34 ,  H04L1/06 ,  H04L25/03

CPC classification number: H04L1/0042 ,  H04L1/0047 ,  H04L1/0067 ,  H04L1/0656 ,  H04L25/03171 ,  H04L27/18 ,  H04L27/34 ,  H04L2001/0094

Abstract: A wireless communication transmitter (200) configured to segment a transport block into C segments, encode each segment into a set of encoded bits, determine, for γ encoded segments, a subset of size M0′ of encoded bits for each encoded segment and for C−γ encoded segments, a subset of size M1′ of encoded bits for each encoded segment, wherein the subset sizes M0′ and M1′ differ at most by P bits, where P is a product of a modulation order and a number of transmission layers over which the transport block is transmitted. The selected subsets of encoded bits are concatenated and grouped to form modulation symbols of the modulation order.

Abstract translation: 一种被配置为将传输块分段为C段的无线通信发射机（200），将每个段编码为一组编码比特，为γ编码分段确定每个编码分段的编码比特大小M0'的子集，并为C -γ编码段，每个编码段的编码位的大小M1'的子集，其中子集大小M0'和M1'最多与P位不同，其中P是调制阶数和传输层数 传输块被传输。 编码比特的选定子集被级联并分组，以形成调制阶数的调制符号。

公开(公告)号：US20150215070A1

公开(公告)日：2015-07-30

申请号：US14678389

申请日：2015-04-03

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka MURAKAMI ,  Shutai Okamura ,  Kiyotaka Kobayashi ,  Masayuki Orihashi

IPC: H04L1/00 ,  H03M13/29

CPC classification number: H04L1/0041 ,  H03M13/13 ,  H03M13/255 ,  H03M13/2721 ,  H03M13/2909 ,  H04L1/0003 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0656 ,  H04L5/0023

Abstract: A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges (interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged (interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.

Abstract translation: 一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。 编码部分将传输数据转移到块编码处理以形成块编码数据。 调制部分调制块编码数据以形成数据符号; 并且排列（交织）部分以这样的方式布置（交织）块编码数据，使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起，然后提供所安排的（交织的 ）块编码数据到调制部分。 以这种方式，可以提供一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。

公开(公告)号：US09059743B2

公开(公告)日：2015-06-16

申请号：US13872787

申请日：2013-04-29

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Shutai Okamura ,  Kiyotaka Kobayashi ,  Masayuki Orihashi

IPC: G06F11/00 ,  H03M13/00 ,  H03M13/13 ,  H03M13/25 ,  H03M13/27 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00

CPC classification number: H04L1/0041 ,  H03M13/13 ,  H03M13/255 ,  H03M13/2721 ,  H03M13/2909 ,  H04L1/0003 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0656 ,  H04L5/0023

Abstract: A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges(interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged(interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.

Abstract translation: 一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。 编码部分将传输数据转移到块编码处理以形成块编码数据。 调制部分调制块编码数据以形成数据符号; 并且排列（交织）部分以这样的方式布置（交织）块编码数据，使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起，然后提供所安排的（交织的 ）块编码数据到调制部分。 以这种方式，可以提供一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。

公开(公告)号：US09008199B2

公开(公告)日：2015-04-14

申请号：US12492674

申请日：2009-06-26

Applicant: D. J. Richard van Nee

Inventor： D. J. Richard van Nee

IPC: H04K1/10 ,  H04L27/18 ,  H04L1/00 ,  H03M13/27 ,  H04B7/04 ,  H04L1/06 ,  H04L27/26

CPC classification number: H04L1/0071 ,  H03M13/2757 ,  H04B7/04 ,  H04L1/0041 ,  H04L1/06 ,  H04L1/0656 ,  H04L27/2601 ,  H04L27/2602

Abstract: A MIMO transmitter including an interleaving system for parsing encoded bits to a plurality of spatial streams and a plurality of interleavers to interleave bits for spatial streams such that at least a first spatial stream uses a first stream interleaver that interleaves with a pattern distinct from a second stream interleaver interleaving for a second spatial stream.

公开(公告)号：US08995547B2

公开(公告)日：2015-03-31

申请号：US11078470

申请日：2005-03-11

Applicant: Byoung-Hoon Kim

Inventor： Byoung-Hoon Kim

IPC: H04B7/00 ,  H04L1/06 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04L1/0656 ,  H04B7/04 ,  H04B7/0632 ,  H04L1/0675

Abstract: Systems and methods for improving the performance of a MIMO wireless communication system by reducing the amount of uplink resources that are needed to provide channel performance feedback for the adjustment of data rates on the downlink MIMO channels. In one embodiment, a method comprises encoding each of a set of data streams according to corresponding data rates, permuting the data streams on a set of MIMO channels according to a full permutation of combinations, transmitting the permuted data streams, receiving the permuted data streams, decoding and determining an SNR for each of the data streams, computing a condensed SNR metric for the set of data streams, providing the condensed metric as feedback, determining a set of individual SNR metrics for the data streams based on the condensed SNR metric, and adjusting the data rates at which the data streams are encoded based on the individual SNR metrics.

Abstract translation: 通过减少为在下行链路MIMO信道上调整数据速率而提供信道性能反馈所需的上行链路资源的量来改善MIMO无线通信系统的性能的系统和方法。 在一个实施例中，一种方法包括根据对应的数据速率对一组数据流中的每一个进行编码，根据组合的全部置换来置换一组MIMO信道上的数据流，发送置换的数据流，接收置换的数据流 解码和确定每个数据流的SNR，计算所述数据流集合的精简SNR度量，提供所述精简度量作为反馈，基于所述精简SNR度量确定所述数据流的各个SNR度量的集合， 以及基于各个SNR度量来调整数据流被编码的数据速率。

公开(公告)号：US08934426B2

公开(公告)日：2015-01-13

申请号：US13265639

申请日：2010-04-21

Applicant: Jun Yuan ,  Sophie Vrzic ,  Mo-Han Fong ,  Robert Novak ,  Dong-Sheng Yu ,  Jianglei Ma

Inventor： Jun Yuan ,  Sophie Vrzic ,  Mo-Han Fong ,  Robert Novak ,  Dong-Sheng Yu ,  Jianglei Ma

IPC: H04W4/00 ,  H04W72/08 ,  H04B7/04 ,  H04W36/38

CPC classification number: H04W72/085 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0623 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0686 ,  H04B17/373 ,  H04L1/0005 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0656 ,  H04W36/385 ,  H04W88/08

Abstract: In order to minimize the control signaling overhead associated with transmitting CQI data from mobile stations to base stations in wireless communication networks supporting MU-MIMO, the CQI during MU-MIMO operation is estimated based on SU-MIMO CQI data, mobile station geometry data, and mobile station PMI (Precoding Matrix Index) data. More particularly, the base station maintains and updates a knowledge pool that correlates geometry data and learned impact of interfering precoder data to degradation of CQI values responsive to switching from SU-MIMO operation to MU-MIMO operations. Then, when the base station switches from SU-MIMO operation to MU-MIMO operation, it consults the knowledge pool to predict the degradation in CQI and subtracts them from the known, pre-switching SU-MIMO CQI feedback data for each relevant mobile station to predict the post-switching MU-MIMO CQIs for that mobile station.

Abstract translation: 为了最小化支持MU-MIMO的无线通信网络中的将CQI数据从移动站发送到基站的控制信令开销，基于SU-MIMO CQI数据，移动站几何数据， 和移动台PMI（预编码矩阵索引）数据。 更具体地，基站维护和更新将几何数据与学习的干扰预编码器数据的影响相关联的知识库与响应于从SU-MIMO操作切换到MU-MIMO操作的CQI值劣化。 然后，当基站从SU-MIMO操作切换到MU-MIMO操作时，它咨询知识库以预测CQI中的劣化，并从每个相关移动站的已知的预切换SU-MIMO CQI反馈数据中减去它们 以预测该移动台的后切换MU-MIMO CQI。

公开(公告)号：US20150003431A9

公开(公告)日：2015-01-01

申请号：US12887004

申请日：2010-09-21

Applicant: Mohammadhadi Baligh ,  Jianglei Ma ,  Hua Xu

Inventor： Mohammadhadi Baligh ,  Jianglei Ma ,  Hua Xu

IPC: H04B7/212

CPC classification number: H04B7/024 ,  H04B7/0669 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/12 ,  H04L1/0026 ,  H04L1/0071 ,  H04L1/0625 ,  H04L1/0656 ,  H04L1/0668 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/003 ,  H04L5/0035 ,  H04W72/1231

Abstract: A method of serving a given data stream to a target mobile terminal, in a cellular communications network that includes a plurality of transmitting sites wherein each transmitting site including at least one antenna, is provided. The method includes designating at least two of the plurality of transmitting sites as cooperating sites; assigning tones to each transmitting site from a sub-band associated with the cooperating sites; dividing the data stream into at least two sub-data streams, each of the sub-data streams for transmission over selected tones; and interlacing tones of the cooperating sites in accordance with a selected one of a time switching and a frequency switching transmit diversity technique. Other techniques for multi-site MIMO cooperation are also provided.

Abstract translation: 一种在包括多个发送站点的蜂窝通信网络中向目标移动终端提供给定数据流的方法，其中提供了包括至少一个天线的每个发送站点。 该方法包括将多个发送站点中的至少两个指定为协作站点; 从与合作站点相关联的子带向每个发送站点分配音调; 将数据流划分为至少两个子数据流，用于在所选音调上传输的每个子数据流; 以及根据时间切换和频率切换发射分集技术中选择的一个来协作的场所的交织音调。 还提供了用于多站点MIMO协作的其他技术。

公开(公告)号：US08913529B2

公开(公告)日：2014-12-16

申请号：US12112728

申请日：2008-04-30

Applicant: J. Rodney Walton ,  Mark S. Wallace ,  John W. Ketchum ,  Steven J. Howard

Inventor： J. Rodney Walton ,  Mark S. Wallace ,  John W. Ketchum ,  Steven J. Howard

IPC: H04J3/00 ,  H04K1/10 ,  H04L1/06 ,  H04B7/06 ,  H04L1/18 ,  H04B7/08 ,  H04L27/26 ,  H04B7/02 ,  H04W72/12 ,  H04L25/02 ,  H04W28/20 ,  H04B7/04 ,  H04W84/12 ,  H04L1/00 ,  H04W52/50 ,  H04L25/03 ,  H04L1/08 ,  H04L5/00 ,  H04W28/22 ,  H04L1/16 ,  H04W52/42

CPC classification number: H04L5/0048 ,  H04B7/022 ,  H04B7/0421 ,  H04B7/043 ,  H04B7/0443 ,  H04B7/0669 ,  H04B7/0689 ,  H04B7/0697 ,  H04B7/0854 ,  H04B7/0871 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0025 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/0606 ,  H04L1/0625 ,  H04L1/0656 ,  H04L1/08 ,  H04L1/16 ,  H04L1/1887 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0228 ,  H04L25/0248 ,  H04L25/03343 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04W28/20 ,  H04W28/22 ,  H04W52/42 ,  H04W52/50 ,  H04W72/12 ,  H04W84/12

Abstract: A multiple-access MIMO WLAN system that employs MIMO, OFDM, and TDD. The system (1) uses a channel structure with a number of configurable transport channels, (2) supports multiple rates and transmission modes, which are configurable based on channel conditions and user terminal capabilities, (3) employs a pilot structure with several types of pilot (e.g., beacon, MIMO, steered reference, and carrier pilots) for different functions, (4) implements rate, timing, and power control loops for proper system operation, and (5) employs random access for system access by the user terminals, fast acknowledgment, and quick resource assignments. Calibration may be performed to account for differences in the frequency responses of transmit/receive chains at the access point and user terminals. The spatial processing may then be simplified by taking advantage of the reciprocal nature of the downlink and uplink and the calibration.

Abstract translation: 采用MIMO，OFDM和TDD的多接入MIMO WLAN系统。 系统（1）使用具有多个可配置传输信道的信道结构，（2）支持基于信道条件和用户终端能力可配置的多种速率和传输模式，（3）采用具有多种类型 （4）实现速率，定时和功率控制环路，实现系统正常运行，（5）采用随机接入方式进行系统接入，由用户终端 ，快速确认和快速的资源分配。 可以执行校准以考虑接入点和用户终端处的发射/接收链的频率响应的差异。 然后可以通过利用下行链路和上行链路的相互性质和校准来简化空间处理。