公开(公告)号：US08989288B2

公开(公告)日：2015-03-24

申请号：US13810543

申请日：2012-12-18

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Jinhua Liu ,  Bo Goransson ,  Xinyu Gu ,  Qingyu Miao ,  Zhang Zhang

IPC: H04K1/10 ,  H04L27/28 ,  H04L27/26 ,  H04W52/32 ,  H04B7/04 ,  H04W52/14 ,  H04W52/26 ,  H04W52/36

CPC classification number: H04L27/2601 ,  H04B7/0413 ,  H04W52/143 ,  H04W52/146 ,  H04W52/265 ,  H04W52/267 ,  H04W52/325 ,  H04W52/346 ,  H04W52/367

Abstract: The present disclosure relates to a method for common pilot configuration, the method comprising steps of: determining information related to UEs served by a BS; and configuring transmission of at least one common pilot from the BS to the served UEs based on the determined UE related information. In an example 4-branch MIMO system, at most 4 common pilots are configurable to be transmitted, and the at least one common pilot is two common pilots newly introduced into a legacy system.

Abstract translation: 本公开涉及一种用于公共导频配置的方法，所述方法包括以下步骤：确定与由BS所服务的UE相关的信息; 以及基于所确定的UE相关信息来配置从所述BS到所述被服务UE的至少一个公共导频的传输。 在示例性的4分支MIMO系统中，最多可配置4个公共导频，并且至少一个公共导频是新引入到传统系统中的两个公共导频。

公开(公告)号：US08971430B2

公开(公告)日：2015-03-03

申请号：US13699576

申请日：2011-05-25

Applicant: Hirokazu Takahashi

Inventor： Hirokazu Takahashi

IPC: H04K1/10 ,  H04L27/28 ,  H04J11/00 ,  H04L27/26

CPC classification number: H04J11/0023 ,  H04L27/2657 ,  H04L27/2686 ,  H04L27/2688

Abstract: Deterioration of reception characteristics due to interference waves is suppressed. A receiving device includes a communication unit, which subtracts a frequency of an intended wave subcarrier from a frequency of interference waves if the interference waves are present in a reception signal, divides the result of the subtraction by a frequency interval of the subcarrier, sets the remainder of the division as an offset frequency, and thus changes reception frequency setting based on the offset frequency.

Abstract translation: 抑制了由干扰波引起的接收特性的恶化。 接收装置包括通信单元，如果在接收信号中存在干扰波，则从干扰波的频率中减去预期的波形副载波的频率，将减法的结果除以子载波的频率间隔，将 剩余的除法作为偏移频率，从而基于偏移频率改变接收频率设置。

公开(公告)号：US08971426B2

公开(公告)日：2015-03-03

申请号：US13322139

申请日：2010-05-24

Applicant: Hyun Soo Ko ,  Moon Il Lee ,  Ja Ho Koo ,  Jae Hoon Chung ,  Bin Chul Ihm

Inventor： Hyun Soo Ko ,  Moon Il Lee ,  Ja Ho Koo ,  Jae Hoon Chung ,  Bin Chul Ihm

IPC: H04K1/10 ,  H04L27/28 ,  H04B7/04 ,  H04B7/06 ,  H04W52/42

CPC classification number: H04B7/0465 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0639 ,  H04B7/0691 ,  H04W52/42

Abstract: The present invention relates to a wireless communication system, and an adaptive multiple antenna transmission method and apparatus in accordance with antenna transmission power are disclosed. A method of performing multiple antenna transmission from a terminal to a base station according to one embodiment of the present invention may include the steps of: determining a reference value for a transmission power of each of a plurality of transmit antennas of the terminal; grouping the plurality of transmit antennas into a first group of transmit antennas and a second group of transmit antennas in accordance with the determined reference value; and transmitting a signal to the base station through at least one of the first group of the transmit antennas and the second group of transmit antennas.

Abstract translation: 本发明涉及一种无线通信系统，以及根据天线发射功率的自适应多天线传输方法和装置。 根据本发明的一个实施例，从终端到基站执行多天线传输的方法可以包括以下步骤：确定终端的多个发射天线中的每一个的发射功率的参考值; 根据确定的参考值将多个发射天线分组成第一组发射天线和第二组发射天线; 以及通过所述第一组发射天线和所述第二组发射天线中的至少一个发射信号到所述基站。

公开(公告)号：US08971425B2

公开(公告)日：2015-03-03

申请号：US13121501

申请日：2009-10-13

Applicant: Han Byul Seo ,  Byoung Hoon Kim

Inventor： Han Byul Seo ,  Byoung Hoon Kim

IPC: H04K1/10 ,  H04L27/28 ,  H04B7/155 ,  H04B7/04

CPC classification number: H04B7/1555 ,  H04B7/0413

Abstract: A method for relaying performed by a relay station is provided. The method includes receiving a signal from a source station through at least one receive antenna, defining a connection structure between the at least one receive antenna and at least one transmit antenna, processing the signal by using a midcoding matrix, and transmitting the processed signal to a destination station through the at least one transmit antenna. Quality of signal transmission can be enhanced.

Abstract translation: 提供了一种由中继站执行的中继方法。 该方法包括通过至少一个接收天线从源站接收信号，定义至少一个接收天线与至少一个发射天线之间的连接结构，通过使用中间码矩阵处理该信号，并将处理的信号发送到 通过所述至少一个发射天线的目的地站。 可以提高信号传输质量。

公开(公告)号：US08965292B2

公开(公告)日：2015-02-24

申请号：US11990691

申请日：2005-10-26

Applicant: Bo Hagerman ,  Fredrik Gunnarsson

Inventor： Bo Hagerman ,  Fredrik Gunnarsson

IPC: H04K1/10 ,  H04W4/00 ,  H04B1/00 ,  H04W72/00 ,  H04W72/08 ,  H04B1/7097

CPC classification number: H04W72/082 ,  H04B1/7097 ,  H04B2201/70702

Abstract: A first unit for use in a base station in a mobile telecommunication network is adapted to use an identity for identifying a mobile terminal or for identifying a channel in the uplink. The first unit manages information of at least one additional identity of a mobile terminal or a channel belonging to at least a second base station for interference mitigation purposes. The first unit detects whether the mobile terminal or channel identified by the additional identity is active and mitigates cell-interference caused by an active mobile terminal or a channel identified by the additional identity. A second unit reserves at least one identity for identifying a mobile terminal or for identifying a channel in order to make the at least one identity identifiable to at least a second base station.

Abstract translation: 在移动电信网络中的基站中使用的第一单元适于使用用于识别移动终端的标识或用于在上行链路中识别信道。 第一单元管理移动终端或属于至少第二基站的信道的至少一个附加身份的信息，以用于干扰减轻的目的。 第一单元检测由附加身份识别的移动终端或信道是否活动并减轻由活动移动终端或由附加身份识别的频道引起的小区干扰。 第二单元保留用于识别移动终端或用于识别信道的至少一个身份，以便使至少一个身份可被至少第二基站识别。

公开(公告)号：US08958491B2

公开(公告)日：2015-02-17

申请号：US14237779

申请日：2012-08-08

Applicant: Myung Kyu Lee ,  Kyeong Cheol Yang ,  Seung Chan Lim

Inventor： Myung Kyu Lee ,  Kyeong Cheol Yang ,  Seung Chan Lim

IPC: H04K1/10 ,  H04L27/28 ,  H04L25/03 ,  H04L27/26

CPC classification number: H04L25/03821 ,  H04L27/2601 ,  H04L27/2657 ,  H04L27/2691

Abstract: The present invention relates to a receiving apparatus in an OFDM communication system and a phase noise mitigation method thereof which are configured to estimate and compensate for phase noise from a received OFDM symbol, unlike the conventional receiver which uses a pilot symbol for mitigating phase noise, and thus can improve the transmission efficiency and error rate performance in an OFDM system.

Abstract translation: 本发明涉及一种OFDM通信系统中的接收装置及其相位噪声抑制方法，其被配置为从接收的OFDM符号估计和补偿相位噪声，与使用用于减轻相位噪声的导频符号的常规接收机不同， 从而可以提高OFDM系统的传输效率和错误率性能。

公开(公告)号：US08948284B2

公开(公告)日：2015-02-03

申请号：US13670324

申请日：2012-11-06

Applicant: LG Electronics Inc.

Inventor： Jong Hyun Park ,  Eun Sun Kim ,  Yun Jung Yi ,  Ill Soo Sohn ,  Bong Hoe Kim

IPC: H04K1/10 ,  H04L27/28 ,  H04L27/26

CPC classification number: H04L27/2613

Abstract: Method and apparatus of transmitting PLCP header for sub 1 GHz communication is disclosed. A method of transmitting a physical layer convergence protocol (PLCP) header may comprise generating a short training field (STF) sequence over 1 orthogonal frequency division multiplexing (OFDM) symbol, transforming the STF sequence to repeated waveform patterns in time domain and transmitting the PLCP header comprising the STF sequence, wherein the STF sequence may be a sequence transformed to repeated waveform patterns in time domain by inverse discrete Fourier transform (IDFT).

Abstract translation: 公开了发送用于1GHz通信的PLCP报头的方法和装置。 传输物理层汇聚协议（PLCP）报头的方法可以包括：通过1个正交频分复用（OFDM）符号生成短训练场（STF）序列，将STF序列变换成时域中的重复波形模式，并发送PLCP 包括STF序列的标题，其中STF序列可以是通过反离散傅立叶变换（IDFT）在时域中变换成重复波形图案的序列。

公开(公告)号：US08948283B2

公开(公告)日：2015-02-03

申请号：US13477920

申请日：2012-05-22

Applicant: Hongyuan Zhang

Inventor： Hongyuan Zhang

IPC: H04K1/10 ,  H04L5/00

CPC classification number: H04W28/065 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2627 ,  H04L69/22 ,  H04W72/046 ,  H04W84/12 ,  H04W88/06

Abstract: In a method for generating a null data packet (NDP) sounding packet for transmission via a communication channel, a signal field and one or more long training fields are generated. The signal field and the long training fields are modulated using a plurality of orthogonal frequency division multiplexing (OFDM) symbols. Symbol duration of each OFDM symbol of the plurality of OFDM symbols is at least 8 μs. The NDP sounding packet is generated to include the plurality of OFDM symbols. The NDP sounding packet omits a data payload portion.

Abstract translation: 在通过通信信道生成用于发送的空数据分组（NDP）探测分组的方法中，生成信号字段和一个或多个长训练字段。 使用多个正交频分复用（OFDM）符号对信号场和长训练场进行调制。 多个OFDM符号的每个OFDM符号的符号持续时间至少为8μs。 生成NDP探测包以包括多个OFDM符号。 NDP探测包省略了数据有效载荷部分。

公开(公告)号：US08942304B2

公开(公告)日：2015-01-27

申请号：US14110795

申请日：2012-04-18

Applicant: Yutaka Murakami ,  Tomohiro Kimura ,  Mikihiro Ouchi

Inventor： Yutaka Murakami ,  Tomohiro Kimura ,  Mikihiro Ouchi

IPC: H04K1/10 ,  H04L27/28 ,  H04B7/04 ,  H04W52/42 ,  H04B7/06 ,  H04B7/08 ,  H04J11/00

Abstract: A transmission method for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. Each signal has been modulated according to a different modulation scheme. The transmission method applies precoding on both signals using a fixed precoding matrix, applies different power change to each signal, and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.

公开(公告)号：US08938016B1

公开(公告)日：2015-01-20

申请号：US14016108

申请日：2013-09-01

Applicant: Marvell International, Ltd.

Inventor： David Ben-Eli ,  Daniel Yellin

IPC: H04K1/10 ,  H04L27/26

CPC classification number: H04L27/2607 ,  H04L27/0012

Abstract: A method includes receiving a signal in a frequency band, which is assignable at least to a communication protocol in which Cyclic Prefixes (CP) are added to symbols having a predefined symbol interval. Multiple autocorrelations of the received signal are computed with a fixed time offset that depends on the symbol interval defined in the communication protocol, and the multiple autocorrelations are accumulated to produce a cumulative autocorrelation. An identification is made, based on the cumulative autocorrelation, whether the received signal is formatted in accordance with the communication protocol.

Abstract translation: 一种方法包括在频带中接收信号，该信号至少可分配给其中循环前缀（CP）被添加到具有预定符号间隔的符号的通信协议。 接收信号的多个自相关用固定的时间偏移来计算，该固定时间偏移取决于通信协议中定义的符号间隔，并且多个自相关被累积以产生累积自相关。 基于累积自相关来确定接收到的信号是否根据通信协议进行格式化。