公开(公告)号：US20150043511A1

公开(公告)日：2015-02-12

申请号：US14523981

申请日：2014-10-27

Applicant: Esmael Hejazi Dinan

Inventor： Esmael Hejazi Dinan

IPC: H04W72/04 ,  H04L27/26

CPC classification number: H04W72/042 ,  H04J11/0069 ,  H04J11/0073 ,  H04J11/0076 ,  H04J13/0062 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04L27/2601 ,  H04L27/2649 ,  H04L27/2656 ,  H04L27/2666 ,  H04L27/2675 ,  H04W4/06 ,  H04W72/0406 ,  H04W72/0446

Abstract: A wireless device at least demodulates, descrambles and decodes a first control signal to generate a first signal. The wireless device processes the first signal by at least encoding, scrambling, modulating and scaling the first signal. The wireless device subtracts the processed first signal from received signals to generate a second signal. The wireless device at least demodulates, descrambles and decodes the second signal to generate a second control message.

Abstract translation: 无线设备至少解调，解扰和解码第一控制信号以产生第一信号。 无线设备至少通过编码，加扰，调制和缩放第一信号来处理第一信号。 无线设备从接收到的信号中减去经处理的第一信号以产生第二信号。 无线设备至少对第二信号进行解调，解扰和解码以产生第二控制消息。

公开(公告)号：US08891350B2

公开(公告)日：2014-11-18

申请号：US12459720

申请日：2009-07-06

Applicant: I-Kang Fu ,  Po-Yuen Cheng ,  Pei-Kai Liao

Inventor： I-Kang Fu ,  Po-Yuen Cheng ,  Pei-Kai Liao

IPC: H04J11/00 ,  H04W4/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: 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

Abstract: A method of data transmission over guard sub-carriers is provided in a multi-carrier OFDM system. Adjacent radio frequency (RF) carriers are used to carry radio signals transmitted through adjacent frequency channels. A plurality of guard sub-carriers between adjacent frequency channels are aligned and identified for data transmission in a pre-defined physical resource unit. The identified guard sub-carriers do not overlap with normal data sub-carriers of the radio signals transmitted through the adjacent 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 transceiver architecture can be used to support data transmission over guard sub-carriers.

Abstract translation: 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。 相邻射频（RF）载波用于携带通过相邻频道传输的无线电信号。 在预定义的物理资源单元中，对齐和识别相邻频道之间的多个保护子载波用于数据传输。 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数据子载波重叠。 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，灵活的多载波收发器架构可以用于支持保护子载波上的数据传输。

公开(公告)号：US08879648B2

公开(公告)日：2014-11-04

申请号：US13486473

申请日：2012-06-01

Applicant: Lothar Stadelmeier ,  Lachlan Michael

Inventor： Lothar Stadelmeier ,  Lachlan Michael

IPC: H04K1/10 ,  H04N21/61 ,  H04H20/33 ,  H04L5/00 ,  H04L27/26 ,  H04N21/2383 ,  H04N21/438

CPC classification number: H04L5/0092 ,  H04H20/33 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/2602 ,  H04L27/2666 ,  H04N21/2383 ,  H04N21/4382 ,  H04N21/6118

Abstract: A transmission apparatus and method for transmitting signals in a multi carrier transmission system comprises a modulator, a band information generator that generates band information defining the frequency bands corresponding to all of the data streams carried within that frequency channel, said band information including a tuning frequency indicator indicating a tuning frequency and a tuning frequency type indicator indicating the type of tuning frequency indicated by said tuning frequency indicator, wherein said type is selected from a group comprising at least a first type indicating a tuning frequency of a frequency band and a second type indicating a center frequency of a frequency channel, and a transmitter.

Abstract translation: 一种用于在多载波传输系统中发送信号的传输装置和方法，包括调制器，频带信息发生器，其生成定义与该频道内携带的所有数据流相对应的频带的频带的频带信息，所述频带信息包括调谐频率 指示调谐频率的指示器和指示由所述调谐频率指示器指示的调谐频率的类型的调谐频率类型指示器，其中所述类型选自包括指示频带和第二类型的调谐频率的至少第一类型的组 指示频道的中心频率和发射机。

公开(公告)号：US08824528B2

公开(公告)日：2014-09-02

申请号：US13914650

申请日：2013-06-11

Applicant: FCI Inc.

Inventor： Jae-Jun Ban ,  Beomjin Kim

IPC: H04B1/00 ,  H04B1/7163

CPC classification number: H04B1/71637 ,  H04L27/265 ,  H04L27/2666 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2689 ,  H04L27/3863

Abstract: The present invention relates to a spectrum inversion detection apparatus which includes a differential correlation value computing portion, utilized to use a present and previous time axial symbols to compute differential correlation values individually corresponding to carriers; and a controlling portion, utilized to use the differential correlation values, when a spectrum inversion status flag is not at a spectrum inversion state, to compute a correlativity value of the each integer frequency displacement thereby, and when spectrum inversion status flag is at the spectrum inversion state, to determine a maximal correlativity value among all the computed correlativity values, and to decide a spectrum inversion status flag of the computed correlativity value which is determined as the maximal correlativity value thereby utilizing as a detection result signal to output.

Abstract translation: 本发明涉及一种频谱反演检测装置，其包括差分相关值计算部分，用于使用当前和先前时间轴向符号来计算与载波分别对应的差分相关值; 以及当频谱反转状态标志不处于频谱反转状态时用于使用差分相关值的控制部分，以计算每个整数频率位移的相关性值，并且当频谱反转状态标志处于频谱 确定所有计算的相关性值之间的最大相关性值，并且确定所计算的相关性值的频谱反转状态标志，其被确定为最大相关性值，从而利用作为检测结果信号输出。

公开(公告)号：US20140219224A1

公开(公告)日：2014-08-07

申请号：US14250145

申请日：2014-04-10

Applicant: Optis Cellular Technology, LLC

Inventor： Dae Won LEE ,  Ki Jun Kim ,  Dong Wook Roh ,  Yu Jin Noh ,  Joon Kui Ahn ,  Jung Hoon Lee

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2656 ,  H04L27/2666 ,  H04W24/08 ,  H04W48/12 ,  H04W88/02 ,  H04W88/08

Abstract: A method for efficiently transmitting and receiving control information through a Physical Downlink Control Channel (PDCCH) is provided. When a User Equipment (UE) receives control information through a PDCCH, the received control information is set to be decoded in units of search spaces, each having a specific start position in the specific subframe. Here, a modulo operation according to a predetermined first constant value (D) is performed on an input value to calculate a first result value, and a modulo operation according to a predetermined first variable value (C) corresponding to the number of candidate start positions that can be used as the specific start position is performed on the calculated first result value to calculate a second result value and an index position corresponding to the second result value is used as the specific start position. Transmitting control information in this manner enables a plurality of UEs to efficiently receive PDCCHs without collisions.

Abstract translation: 提供了一种通过物理下行链路控制信道（PDCCH）高效地发送和接收控制信息的方法。 当用户设备（UE）通过PDCCH接收到控制信息时，所接收的控制信息被设置为以搜索空间为单位进行解码，每个搜索空间在特定子帧中具有特定的开始位置。 这里，对输入值执行根据预定的第一常数值（D）的模运算以计算第一结果值，并且根据与候选开始位置的数量相对应的预定的第一可变值（C）进行模运算 对计算出的第一结果值执行可用作特定开始位置的计算第二结果值，并将与第二结果值对应的索引位置用作特定开始位置。 以这种方式发送控制信息使得多个UE能够有效地接收PDCCH而不发生冲突。

公开(公告)号：US20140198763A1

公开(公告)日：2014-07-17

申请号：US14110846

申请日：2013-08-13

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Stefano Sorrentino ,  Havish Koorapaty

IPC: H04B7/02

CPC classification number: H04B7/024 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0085 ,  H04L27/2613 ,  H04L27/2666 ,  H04L27/2675

Abstract: In one aspect, the teachings herein disclose methods and apparatuses for improved reference signal reception in a wireless device configured for operation in a wireless communication network. In one embodiment, the network provides assistance information that indicates a received timing or frequency offset of a second reference signal relative to a first reference signal that is transmitted from a first antenna port. The second reference signal is transmitted by the wireless communication network from a second antenna port that is quasi co-located with the first antenna port with respect to timing, frequency and/or delay spread, and the wireless device is configured to use the assistance information to configure its receiver timing and/or frequency offset for reception of the second reference signal. Such operation reduces the “search” space in time and/or frequency needed at the wireless device, thereby improving and simplifying reception of the second reference signal.

Abstract translation: 在一个方面，这里的教导公开了用于在被配置为在无线通信网络中操作的无线设备中改进参考信号接收的方法和装置。 在一个实施例中，网络提供辅助信息，其指示接收到的相对于从第一天线端口发送的第一参考信号的第二参考信号的定时或频率偏移。 相对于定时，频率和/或延迟扩展，第二参考信号由无线通信网络从与第一天线端口准共设的第二天线端口发送，并且无线设备被配置为使用辅助信息 配置其接收机定时和/或频率偏移以接收第二参考信号。 这样的操作减少了无线设备所需的时间和/或频率的“搜索”空间，从而改善和简化了第二参考信号的接收。

公开(公告)号：US08774293B2

公开(公告)日：2014-07-08

申请号：US12736999

申请日：2009-06-03

Applicant: Maxim Berlotserkovsky ,  Aaron Reel Bouillet

Inventor： Maxim Berlotserkovsky ,  Aaron Reel Bouillet

IPC: H04L27/28 ,  H04L27/26 ,  H04L27/00 ,  H04B1/00 ,  H04H60/41

CPC classification number: H04L27/0014 ,  H04B1/0003 ,  H04H60/41 ,  H04L27/2647 ,  H04L27/2666

Abstract: The determination and identification of channels in a signal is an important aspect of the operation of a signal receiver. A method (800) is described including the steps receiving (802) a signal containing a plurality of channels, filtering (806) the signal to produce an indicator of a channel band edge, and determining (818) a characteristic of the channel based on the indicator. Additionally, an apparatus (300) is described including a spectrum shift circuit (304) that receives an input signal and shifts the frequency spectrum of the signal, a filter (306) that filters the frequency shifted signal to produce an indicator of a band edge of a channel, and a signal analysis circuit (316, 318) that determines a characteristic of the channel based on the indicator of the band edge, the signal analysis circuit (316, 318) controlling the frequency shift in the spectrum shift circuit (304) based on the determined characteristic of the channel.

Abstract translation: 信号中信道的确定和识别是信号接收机操作的重要方面。 描述了一种方法（800），其包括接收（802）包含多个信道的信号的步骤，对信号进行滤波（806）以产生信道带边缘的指示符，以及基于以下步骤确定（818）信道的特性： 指标。 另外，描述了一种装置（300），其包括接收输入信号并移位该信号的频谱的频谱移位电路（304），滤波器（306），其对频移信号进行滤波以产生频带边缘的指示符 信道分析电路（316,318），其基于所述频带边缘的指标来确定所述信道的特性，所述信号分析电路（316,318）控制所述频谱移位电路（304）中的频移 ）基于所确定的信道特性。

公开(公告)号：US08774124B2

公开(公告)日：2014-07-08

申请号：US13454033

申请日：2012-04-23

Applicant: Ron Porat ,  Nihar Jindal ,  Matthew James Fischer

Inventor： Ron Porat ,  Nihar Jindal ,  Matthew James Fischer

IPC: H04W4/00

CPC classification number: H04L27/2618 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2666 ,  H04W52/18 ,  H04W72/1231 ,  H04W84/12

Abstract: Device coexistence within single user, multiple user, multiple access, and/or MIMO wireless communications. Different respective communication devices operating using different respective communication channels having different respective channel bandwidths may be implemented within a given communication system. For example, different respective communication devices may belong to different basic services sets (BSSs) (e.g., a 1 MHz BSS operating using channel bandwidths of 1 MHz, and a 2 MHz BSS operating using channel bandwidths of 2 MHz). To effectuate coexistence among different respective devices operating using different respective channel bandwidths, devices but longing to the 1 MHz BSS monitor for and listen for 2 MHz wide communication activity, and those 1 MHz BSS communication devices defer to any detected communication activity on any portion of the 2 MHz channel.

Abstract translation: 单用户，多用户，多路访问和/或MIMO无线通信中的设备共存。 可以在给定的通信系统内实现使用具有不同相应信道带宽的不同相应通信信道工作的不同的各个通信设备。 例如，不同的各个通信设备可以属于不同的基本服务集（BSS）（例如，使用1MHz的信道带宽操作的1MHz BSS，以及使用2MHz的信道带宽操作的2MHz BSS）。 为了实现使用不同的相应信道带宽工作的不同的各个设备之间的共存，但是期望到1MHz BSS监视器并且监听2MHz宽的通信活动，并且那些1MHz BSS通信设备延迟任何检测到的任何部分的通信活动 2 MHz信道。

公开(公告)号：US08767685B2

公开(公告)日：2014-07-01

申请号：US13556581

申请日：2012-07-24

Applicant: Thanh Bui

Inventor： Thanh Bui

IPC: H04J3/00 ,  H04J1/00

CPC classification number: H04W72/005 ,  H04L5/0007 ,  H04L27/2607 ,  H04L27/2627 ,  H04L27/2666 ,  H04W72/0406

Abstract: The invention provides for a method of identifying a cyclic prefix to UEs in an OFDM communication system. The cyclic prefix has a dynamically variable length. The method includes, within an OFDM cell, transmitting MCCH scheduling information in a system information block in an OFDM broadcast channel, and using the MCCH scheduling information to receive the MCCH, wherein the MCCH contains MTCH scheduling information to indicate to the UE which sub-frame carries MTCH.

公开(公告)号：US20140177743A1

公开(公告)日：2014-06-26

申请号：US14193428

申请日：2014-02-28

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Hongyuan Zhang ,  Raja Banerjea

IPC: H04L7/00 ,  H04L27/26

CPC classification number: H04L7/0016 ,  H04L27/2601 ,  H04L27/2613 ,  H04L27/2666

Abstract: In a method for detecting, at a first communication device, a clock rate of a physical layer (PHY) data unit, the PHY data unit is received, at the first communication device, from a second communication device via a communication channel. The PHY data unit includes (i) a first portion and (ii) a second portion following the first portion. At the first communication device, the first portion of the PHY data unit is processed. Processing the first portion of the PHY data unit includes performing one or more autocorrelations to generate one or more respective autocorrelation outputs. At the first communication device and based on at least one of the one or more autocorrelation outputs, a clock rate of the second portion of the PHY data unit is determined.

Abstract translation: 在第一通信设备检测物理层（PHY）数据单元的时钟速率的方法中，PHY数据单元在第一通信设备处经由通信信道从第二通信设备接收。 PHY数据单元包括（i）第一部分和（ii）跟随第一部分的第二部分。 在第一通信设备处理PHY数据单元的第一部分。 处理PHY数据单元的第一部分包括执行一个或多个自相关以产生一个或多个相应的自相关输出。 在第一通信设备处，并且基于一个或多个自相关输出中的至少一个，确定PHY数据单元的第二部分的时钟速率。