公开(公告)号：US08953549B1

公开(公告)日：2015-02-10

申请号：US14176757

申请日：2014-02-10

Applicant: Sprint Spectrum L.P.

Inventor： Siddharth S. Oroskar ,  Srini Penugonda

IPC: H04W4/00 ,  H04L5/00

CPC classification number: H04W72/087 ,  H04L1/0047 ,  H04L5/0058 ,  H04W36/18 ,  H04W48/20 ,  H04W74/002 ,  H04W76/12

Abstract: A radio access network (RAN) may receive a call setup request from a wireless communication device (WCD). The call setup request may indicate that the WCD supports a first media codec. The RAN may obtain a set of candidate wireless coverage areas for serving the WCD. A first subset of the candidate wireless coverage areas may support the first media codec, and a second subset of the candidate wireless coverage areas might not support the first media codec. The RAN may assign traffic channels to the WCD, such that the assigned traffic channels include traffic channels from at least two of the first subset of the candidate wireless coverage areas, but do not include traffic channels from any of the second subset of the candidate wireless coverage areas. The RAN may communicate with the WCD substantially simultaneously via the assigned traffic channels using the first media codec.

Abstract translation: 无线电接入网络（RAN）可以从无线通信设备（WCD）接收呼叫建立请求。 呼叫建立请求可以指示WCD支持第一媒体编解码器。 RAN可以获得用于服务WCD的一组候选无线覆盖区域。 候选无线覆盖区域的第一子集可以支持第一媒体编解码器，候选无线覆盖区域的第二子集可能不支持第一媒体编解码器。 RAN可以向WCD分配业务信道，使得所分配的业务信道包括来自候选无线覆盖区域的第一子集中的至少两个的业务信道，但是不包括来自候选无线覆盖区域的任何第二子集的业务信道 覆盖区域。 RAN可以使用第一媒体编解码器通过所分配的业务信道基本同时与WCD通信。

公开(公告)号：US20150022263A1

公开(公告)日：2015-01-22

申请号：US14369040

申请日：2013-01-25

Applicant: SONY CORPORATION

Inventor： Hiroyuki Kamata ,  Yuichi Hirayama ,  Misa Nakane

IPC: H03D3/00

CPC classification number: H03D3/007 ,  H03D2200/005 ,  H04L1/0047 ,  H04L27/22 ,  H04L27/38 ,  H04L2027/0065

Abstract: The present technique relates to a demodulation device, a demodulation method and a program capable of realizing a demodulation process at a rate equivalent to a case where I and Q channel signals are not inverted, even when the I and Q channel signals are inverted. A frequency correction unit establishes synchronization of a frequency and clock based on a signal from a frequency synchronization unit. A channel inversion detection unit of a frame synchronization unit detects presence or absence of inversion of I and Q channel signals, and supplies, as a detection result, a channel inversion detection result to the channel inversion control unit. The channel inversion control unit switches the I and Q channel signals if the inversion has occurred, based on the channel inversion detection result. This technique can be applied to a demodulation device.

Abstract translation: 本技术涉及一种解调装置，解调方法和程序，其能够以与I和Q信道信号不反相的情况相同的速率实现解调处理，即使当I和Q信道信号被反转时。 频率校正单元基于来自频率同步单元的信号建立频率和时钟的同步。 帧同步单元的信道反转检测单元检测是否存在I和Q信道信号的反转，并将信道反转检测结果作为检测结果提供给信道反转控制单元。 信道反转控制单元根据信道反转检测结果，如果发生了反转，则对I和Q信道信号进行切换。 这种技术可以应用于解调装置。

公开(公告)号：US20150010116A1

公开(公告)日：2015-01-08

申请号：US14495658

申请日：2014-09-24

Applicant: TrellisWare Technologies, Inc.

Inventor： Keith M. Chugg ,  Cenk Kose ,  Thomas R. Halford

IPC: H04L27/26 ,  H04L1/00

CPC classification number: H04L27/2618 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0057

Abstract: Systems and methods are presented for controlling the peak-to-average-power of a baseband orthogonal-frequency-domain multiplexing (OFDM) signal by designating a subset of the available subcarriers as information-bearing data-subcarriers, and loading remaining subcarriers by symbols that are a function of the symbols loading the data-subcarriers. At the receiver, the data-dependent subcarriers are optionally combined with data-subcarriers to increase error protection.

Abstract translation: 提出了系统和方法，用于通过将可用子载波的子集指定为带有信息的数据副载波，并通过符号加载剩余子载波来控制基带正交频域复用（OFDM）信号的峰均功率 这是加载数据子载波的符号的函数。 在接收机处，数据相关子载波可选地与数据子载波组合以增加错误保护。

公开(公告)号：US08917786B1

公开(公告)日：2014-12-23

申请号：US13986498

申请日：2013-05-09

Applicant: Urbain Alfred von der Embse

Inventor： Urbain Alfred von der Embse

IPC: H04K1/10 ,  H04L1/00

CPC classification number: H04L1/0047 ,  H04L1/0054 ,  H04L5/02 ,  H04L27/38

Abstract: This invention discloses a method for communications faster than the Nyquist rate (FTN) and faster than the Shannon rate which method is Quadrature Layered Modulation (QLM). QLM properties include scaling the data symbol pulses to maintain the same error rate performance for all rates. QLM alternatively considers the increase in the data symbol rate to be a layering of additional communications over the same link. The Shannon bound is a limit on the capacity of a communication link when transmitting data symbols at the Nyquist rate. QLM observes one can communicate at FTN to transmit more information than the Shannon rate since the Nyquist rate captures the information in a frequency band and does not constraint the information. These properties describe QLM and a separate math proof-of-concept is disclosed. Implementation and performance data demonstrate QLM can support communications data rates which are at least double the Shannon rate.

Abstract translation: 本发明公开了一种比奈奎斯特速率（FTN）快的通信方法，并且速度快于香农速率，该方法是正交分​​层调制（QLM）。 QLM属性包括缩放数据符号脉冲，以维持所有速率的相同错误率性能。 QLM可以将数据符号率的增加视为通过同一链路进行的附加通信的分层。 香奈儿限制是以奈奎斯特速率传输数据符号时通信链路容量的限制。 QLM观察到，由于奈奎斯特速率捕获频带中的信息并且不限制信息，所以可以在FTN进行通信以传送比香农速率更多的信息。 这些属性描述了QLM，并且公开了单独的数学概念证明。 实施和性能数据表明，QLM可以支持至少是香农率的两倍的通信数据速率。

公开(公告)号：US20140369226A1

公开(公告)日：2014-12-18

申请号：US14472442

申请日：2014-08-29

Applicant: Apple Inc.

Inventor： Syed Aon Mujtaba ,  Kee-Bong Song ,  Yuchul Kim ,  Xiaowen Wang ,  Tarik Tabet ,  Youngjae Kim

IPC: H04W28/04 ,  H04L1/00

CPC classification number: H04W28/048 ,  H04L1/0045 ,  H04L1/0047 ,  H04L1/0053 ,  H04W28/04 ,  H04W52/143 ,  H04W52/241

Abstract: A user device receives packets from a base station. The user device may invoke decoding while the packet is still being received, based on the incomplete contents of a given packet. This “partial packet decoding” relies on the fact that the underlying information in the packet is encoded with redundancy (code rate less than one). If link quality is poor, the partial packet decoding is likely to be unsuccessful, i.e., to fail in its attempt to recover the underlying information. To avoid waste of power, the user device may be configured to apply one or more tests of link quality prior to invoking the partial packet decoding on a current packet.

Abstract translation: 用户设备从基站接收分组。 基于给定分组的不完整内容，用户设备可以在分组仍在接收时调用解码。 这种“部分分组解码”依赖于以冗余（代码率小于1）对分组中的底层信息进行编码的事实。 如果链路质量差，则部分分组解码可能不成功，即在尝试恢复基础信息时失败。 为了避免浪费电力，用户设备可以被配置为在对当前分组调用部分分组解码之前应用一个或多个链路质量测试。

公开(公告)号：US08908810B2

公开(公告)日：2014-12-09

申请号：US13728022

申请日：2012-12-27

Applicant: Intel Corporation

Inventor： Bernard Arambepola ,  Murat Badem ,  Parveen K. Shukla ,  Sahan Gamage ,  Thushara Hewavithana ,  Naor Goldman

IPC: H04L27/38 ,  H04L27/06 ,  H04L1/00

CPC classification number: H04L27/06 ,  H03M13/1515 ,  H03M13/451 ,  H03M13/453 ,  H04L1/0045 ,  H04L1/0047 ,  H04L1/0057 ,  H04L27/38

Abstract: A system and method are provided for implementing a soft Reed-Solomon (RS) decoding scheme, technique or algorithm to improve physical layer performance in cable modems and cable gateways. The algorithm is implemented in a forward error correction (FEC) module connected to a QAM demodulator. The RS decoding scheme is implemented without significantly complicating hardware or processing overhead. The soft Reed-Solomon (RS) decoding scheme extracts candidate RS symbols and their Log Likelihood Ratios (LLRs) from QAM symbols. The set of highest probable candidate blocks are then chosen and these are decoded using a variant of the Chase algorithm until a valid codeword is detected at the decoder output.

Abstract translation: 提供了一种用于实现软的里德 - 所罗门（RS）解码方案，技术或算法以改善电缆调制解调器和电缆网关中的物理层性能的系统和方法。 该算法在连接到QAM解调器的前向纠错（FEC）模块中实现。 实现RS解码方案，而不会使硬件或处理开销显着复杂化。 软里德 - 所罗门（RS）解码方案从QAM符号中提取候选RS符号及其对数似然比（LLR）。 然后选择最高可能候选块的集合，并且使用Chase算法的变体对这些候选块进行解码，直到在解码器输出处检测到有效码字。

公开(公告)号：US20140359276A1

公开(公告)日：2014-12-04

申请号：US14256472

申请日：2014-04-18

Applicant: CLEVERSAFE, INC.

Inventor： Jason K. Resch ,  Greg Dhuse

IPC: H04L29/06

CPC classification number: G06F11/1004 ,  G06F11/1076 ,  G06F11/1092 ,  G06F11/1096 ,  G06F11/2094 ,  G06F21/602 ,  G06F21/80 ,  G06F2211/1028 ,  G06F2221/2107 ,  H04L1/0042 ,  H04L1/0047 ,  H04L63/0457 ,  H04L63/061 ,  H04L63/062 ,  H04L67/1097 ,  H04L69/14

Abstract: A method begins by a source processing module securing data based on a key stream to produce secured data, where the key stream is derived from a unilateral encryption key accessible only to the source processing module, and sending the secure data to an intermediator processing module, where desecuring the secured data is divided into two partial desecuring stages. The method continues with the intermediator processing module partially desecuring the secure data in accordance with a first partial desecuring stage to produce partially desecured data and sending the partially desecured data to a destination processing module. The method continues with the destination processing module further partially desecuring the partially desecured data in accordance with a second desecuring stage to recover the data, where the destination processing module does not have access to the encryption key or to the key stream.

Abstract translation: 一种源处理模块开始于基于密钥流保护数据以产生安全数据，其中密钥流是从源处理模块可访问的单方加密密钥导出的，并且将安全数据发送到中间体处理模块， 其中将安全数据分解为两个部分去污阶段。 该方法继续，中继器处理模块根据第一部分去安全阶段部分地去安全保密数据，以产生部分不安全的数据，并将部分不安全的数据发送到目的地处理模块。 该方法继续，目的地处理模块进一步部分地按照第二去除阶段去除部分不安全的数据，以恢复数据，其中目的地处理模块不能访问加密密钥或密钥流。

公开(公告)号：US08855075B2

公开(公告)日：2014-10-07

申请号：US13578505

申请日：2011-02-14

Applicant: Akihiko Nishio ,  Seigo Nakao

Inventor： Akihiko Nishio ,  Seigo Nakao

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00 ,  H04L1/18

CPC classification number: H04W72/0453 ,  H04L1/0047 ,  H04L1/1829 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0096 ,  H04L27/2634 ,  H04W72/0406 ,  H04W72/042

Abstract: Disclosed are a transmission device and a transmission method with which it is possible to prevent delays in data transmission and to minimize the increase in the number of bits necessary for the notification of a CC to be used, in cases where a CC to be used is added during communication employing carrier aggregation. When a component carrier is to be added to a component carrier set, a setting section (101) provided in a base station (100): modifies a CIF table that defines the correspondence between code points, which are used as labels for the respective component carriers contained in the component carrier set, and the identification information of the respective component carriers; and assigns a vacant code point to the component carrier to be added, while keeping the correspondence between the code points and the component carrier identification information defined in the CIF table before modification.

Abstract translation: 公开了一种发送装置和发送方法，通过该发送装置和发送方法，可以防止数据发送的延迟，并且使用要使用的CC的情况下的CC的通知所需的比特数的增加最小化 在采用载波聚合的通信过程中加入。 当分量载波被添加到分量载波集合时，设置在基站（100）中的设置部分（101）：修改定义用作各个分量的标号的代码点之间的对应关系的CIF表 分量载波集合中包含的载波和各个分量载波的识别信息; 并且在修改之前保持代码点和在CIF表中定义的分量载波标识信息之间的对应关系，并将空的代码点分配给要添加的分量载波。

公开(公告)号：US08848819B2

公开(公告)日：2014-09-30

申请号：US13809830

申请日：2011-09-08

Applicant: Yutaka Murakami ,  Tomohiro Kimura ,  Mikihiro Ouchi

Inventor： Yutaka Murakami ,  Tomohiro Kimura ,  Mikihiro Ouchi

IPC: H04L1/02 ,  H04B7/02 ,  H04L25/02 ,  H04B7/06 ,  H04B7/04 ,  H04L25/03 ,  H04L27/34 ,  H04B7/08 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04L1/06 ,  H04L25/06

CPC classification number: H04L27/265 ,  H04B7/0434 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/046 ,  H04B7/0473 ,  H04B7/0617 ,  H04B7/0697 ,  H04B7/08 ,  H04B7/086 ,  H04B7/12 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0045 ,  H04L1/0047 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0071 ,  H04L1/06 ,  H04L1/0643 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0226 ,  H04L25/0248 ,  H04L25/03942 ,  H04L25/067 ,  H04L27/0008 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/3405 ,  H04L2001/0093

Abstract: Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.

Abstract translation: 在用于从多个天线同时发送多个调制信号的传输方法中直接主导的环境中，传输质量得到改善。 在调制信号的数据传输中使用的所有数据符号通过预编码矩阵之间的跳变进行预编码，使得用于预编码每个数据符号的预编码矩阵和用于预编码与频域中的数据符号相邻的数据符号的预编码矩阵，以及 时域完全不同 发送其中布置有这样的数据符号的调制信号。

公开(公告)号：US08848568B2

公开(公告)日：2014-09-30

申请号：US13567136

申请日：2012-08-06

Applicant: Syed A. Mujtaba ,  Kee-Bong Song ,  Yuchul Kim ,  Xiaowen Wang ,  Tarik Tabet ,  Youngjae Kim

Inventor： Syed A. Mujtaba ,  Kee-Bong Song ,  Yuchul Kim ,  Xiaowen Wang ,  Tarik Tabet ,  Youngjae Kim

IPC: H04W24/00

CPC classification number: H04W28/048 ,  H04L1/0045 ,  H04L1/0047 ,  H04L1/0053 ,  H04W28/04 ,  H04W52/143 ,  H04W52/241

Abstract: A user device receives packets from a base station. The user device may invoke decoding while the packet is still being received, based on the incomplete contents of a given packet. This “partial packet decoding” relies on the fact that the underlying information in the packet is encoded with redundancy (code rate less than one). If link quality is poor, the partial packet decoding is likely to be unsuccessful, i.e., to fail in its attempt to recover the underlying information. To avoid waste of power, the user device may be configured to apply one or more tests of link quality prior to invoking the partial packet decoding on a current packet.

Abstract translation: 用户设备从基站接收分组。 基于给定分组的不完整内容，用户设备可以在分组仍在接收时调用解码。 这种“部分分组解码”依赖于以冗余（代码率小于1）对分组中的底层信息进行编码的事实。 如果链路质量差，则部分分组解码可能不成功，即在尝试恢复基础信息时失败。 为了避免浪费电力，用户设备可以被配置为在对当前分组调用部分分组解码之前应用一个或多个链路质量测试。