公开(公告)号：US20100177654A1

公开(公告)日：2010-07-15

申请号：US12667089

申请日：2008-06-25

Applicant: Gilles Charbit ,  Tao Chen

Inventor： Gilles Charbit ,  Tao Chen

IPC: H04L12/26

CPC classification number: H04B1/7087 ,  H04B1/7103 ,  H04B2201/709709 ,  H04W24/02 ,  H04W72/085 ,  H04W84/045

Abstract: Various embodiments are disclosed relating to carrier selection for a home network. In an example network, a method may include using a first carrier frequency to transmit in a downlink direction to a mobile node in a home wireless network, and receiving, from the mobile node, a signal strength measurement for each of a plurality of carrier frequencies. The method may further include receiving, from the mobile node, an error report for the first carrier frequency, and determining that a link quality for the first carrier frequency is below a threshold based on the error report. The method may further include selecting a second carrier frequency from the plurality of carrier frequencies based on the determining and based on the signal strength measurement of the second carrier frequency, and changing, based on the selecting, from the first carrier frequency to the second carrier frequency to transmit data in a downlink direction to the mobile node.

Abstract translation: 公开了关于家庭网络的载波选择的各种实施例。 在示例网络中，方法可以包括使用第一载波频率在家庭无线网络中向下行链路方向发送到移动节点，以及从移动节点接收多个载波频率中的每一个的信号强度测量 。 该方法还可以包括从移动节点接收针对第一载波频率的错误报告，并且基于错误报告确定第一载波频率的链路质量低于阈值。 该方法还可以包括：基于确定并基于第二载波频率的信号强度测量从多个载波频率中选择第二载波频率，并且基于从第一载波频率到第二载波的选择来改变 在下行链路方向向移动节点发送数据的频率。

公开(公告)号：US20100166043A1

公开(公告)日：2010-07-01

申请号：US12161128

申请日：2007-01-17

Applicant: Hideichi Sasaoka ,  Hisato Iwai ,  Yusuke Miyamoto

Inventor： Hideichi Sasaoka ,  Hisato Iwai ,  Yusuke Miyamoto

IPC: H04B1/707

CPC classification number: H04L5/0021 ,  H04B2201/709709 ,  H04J13/0048 ,  H04J2013/165

Abstract: A MC-CDMA transmitter and an MC-CDMA receiver are provided, which use a novel orthogonal spreading code that allows an effect by a delay wave to appear in only a specific user. An MC-CDMA system includes: a transmitter which multiplies a transmitting signal by a sinusoidal signal which has an amplitude of r and is orthogonal as a result that the frequency periods are different among users, in a frequency domain to be spread and split into orthogonal sub-carriers, and multiplexes the sub-carriers; and a receiver for receiving a transmitting signal from the transmitter in a manner that a sinusoidal signal, which has an amplitude of r and is orthogonal as a result that the frequency periods are different among users, is multiplied by the transmitting signal in a frequency domain, and the resultant is inversely spread.

Abstract translation: 提供了一种MC-CDMA发射机和MC-CDMA接收机，其使用允许延迟波的影响仅出现在特定用户中的新颖的正交扩展码。 MC-CDMA系统包括：发射机，在发射的频域中将发射信号乘以正弦信号，该正弦信号具有振幅为r并且正交的频率周期在用户之间不同，并被分裂为正交 子载波，并复用子载波; 以及接收器，其以使得具有振幅r并且作为用户之间的频率周期不同的结果正交的正弦信号与来自发送器的发送信号相乘的频率域中的发送信号 ，结果反向扩散。

公开(公告)号：US20100166040A1

公开(公告)日：2010-07-01

申请号：US12721840

申请日：2010-03-11

Applicant: Hans Dieter Schotten

Inventor： Hans Dieter Schotten

IPC: H04B1/00

CPC classification number: H04J13/004 ,  H04B1/0475 ,  H04B1/7097 ,  H04B2201/709709 ,  H04J13/18

Abstract: A method and system for adapting an effective spreading sequence in a wire-line or a wireless communication system using direct sequence spreading system is described. A station of the communication system determines a state of a communication channel, represented by, e.g., an impulse response, a step response, or any other characteristic known to one skilled in the art. The station determines the channel state by measurements of a received signal or by receiving a feedback signal comprising an information enabling the station to determine the plurality of linearly related phases The station then determines a plurality of linearly related phases in accordance with the state of the communication channel, and then applies at least one of the plurality of linearly related phases to at least one sample of the effective spreading sequence.

Abstract translation: 描述了使用直接序列扩展系统在有线或无线通信系统中适配有效扩展序列的方法和系统。 通信系统的站确定由例如脉冲响应，阶跃响应或本领域技术人员已知的任何其它特征所表示的通信信道的状态。 该站通过测量接收到的信号来确定信道状态，或者通过接收包括使得站能够确定多个线性相关相位的信息的反馈信号。然后，站根据通信的状态确定多个线性相关相位 通道，然后将多个线性相关相中的至少一个应用于有效扩展序列的至少一个采样。

公开(公告)号：US20100142595A1

公开(公告)日：2010-06-10

申请号：US12517175

申请日：2007-11-30

Applicant: Mun-Geon Kyeong ,  Woo-Goo Park ,  In-Cheol Jeong ,  Jae-Sang Cha

Inventor： Mun-Geon Kyeong ,  Woo-Goo Park ,  In-Cheol Jeong ,  Jae-Sang Cha

IPC: H04B1/707

CPC classification number: H04B1/7097 ,  H04B1/7115 ,  H04B2201/709709

Abstract: A communication system generates a continuously orthogonal spreading code for a user, a user signal is spreading-modulated by using the continuously orthogonal spreading codes, and then the spread signal is pre-rake combined and transmitted. A receiver processes the received signal by using a matched filter for one path.

Abstract translation: 通信系统为用户生成连续正交的扩展码，通过使用连续正交的扩展码对用户信号进行扩频调制，然后将扩展信号进行前置叠加和发送。 接收机通过对一个路径使用匹配滤波器来处理接收到的信号。

公开(公告)号：US20100120370A1

公开(公告)日：2010-05-13

申请号：US12528593

申请日：2008-02-21

Applicant: Hiroyuki Ishii

Inventor： Hiroyuki Ishii

IPC: H04B17/00 ,  H04B1/02

CPC classification number: H04B7/022 ,  H04B7/0825 ,  H04B17/309 ,  H04B17/382 ,  H04B2201/70702 ,  H04B2201/709709 ,  H04W36/38

Abstract: When a mobile station to which receive diversity is applied performs measurement of best cell, the method for considering the plurality of antennas in the receive diversity is changed for each cell. The base station determines the method for considering the plurality of antennas for the receive diversity, and reports it to the mobile station as broadcast information or measurement control information.

Abstract translation: 当应用接收分集的移动站执行最佳小区的测量时，针对每个小区改变考虑接收分集中的多个天线的方法。 基站确定用于考虑用于接收分集的多个天线的方法，并将其作为广播信息或测量控制信息报告给移动台。

公开(公告)号：US07702023B2

公开(公告)日：2010-04-20

申请号：US10749693

申请日：2003-12-29

Applicant: Ilan Sutskover ,  David Ben-Eli

Inventor： Ilan Sutskover ,  David Ben-Eli

IPC: H04K1/10

CPC classification number: H04B1/7103 ,  H04B1/0475 ,  H04B2201/709709

Abstract: Interference mitigation strategies are presented for use within a transmitter in a wireless system. In at least one embodiment, one or more transmit signals may be generated that are capable of suppressing common channel interference effects within an associated receiver. In other embodiments, one or more transmit signals may be generated that are capable of suppressing dedicated channel interference effects within an associated receiver.

Abstract translation: 提供干扰减轻策略用于无线系统中的发射机内。 在至少一个实施例中，可以生成能够抑制相关联的接收机内的公共信道干扰效应的一个或多个发射信号。 在其他实施例中，可以生成能够抑制相关联的接收机内的专用信道干扰效应的一个或多个发射信号。

公开(公告)号：US07680475B2

公开(公告)日：2010-03-16

申请号：US11147808

申请日：2005-06-07

Applicant: Tingfang Ji ,  Edward Harrison Teague ,  David Jonathan Julian

Inventor： Tingfang Ji ,  Edward Harrison Teague ,  David Jonathan Julian

IPC: H04W4/00

CPC classification number: H04W72/1231 ,  H04B2201/70702 ,  H04B2201/709709 ,  H04W72/082 ,  H04W72/1257

Abstract: Systems and methodologies are described that facilitate dynamically scheduling frequency sets for reuse by user devices to reduce inter-cell interference by evaluating an overall scheduling metric for each user device in a wireless communication region. The overall scheduling metric can be evaluated by determining a fairness metric for each user device in a wireless communication region, an overall channel peak desirability metric for each user device, and a channel delay desirability metric for each user device. The overall scheduling metric can be the product of the fairness metric and one or more of the overall channel peak desirability metric and the channel delay desirability metric. A user device with a highest overall scheduling metric score for a given round of dynamic scheduling can be awarded a frequency set.

Abstract translation: 描述了系统和方法，其促进动态地调度频率集合以供用户设备重用以通过评估无线通信区域中的每个用户设备的总体调度度量来减小小区间干扰。 可以通过确定无线通信区域中的每个用户设备的公平度量，每个用户设备的整体信道峰值期望度量以及每个用户设备的信道延迟期望度量来评估总体调度度量。 总体调度度量可以是公平度量和总信道峰值期望度量和信道延迟期望度量的一个或多个的乘积。 对于给定的一轮动态调度，具有最高总体调度度量得分的用户设备可以被授予频率集。

公开(公告)号：US20090304024A1

公开(公告)日：2009-12-10

申请号：US12424019

申请日：2009-04-15

Applicant: Yu-Chen Jou ,  Peter J. Black ,  Rashid Ahmed A. Attar

Inventor： Yu-Chen Jou ,  Peter J. Black ,  Rashid Ahmed A. Attar

IPC: H04L29/02

CPC classification number: H04W52/44 ,  H04B2201/709709 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0027 ,  H04L1/0029 ,  H04L1/0045 ,  H04L1/1607 ,  H04L1/1854 ,  H04L1/1887 ,  H04L2001/0092 ,  H04W52/58

Abstract: Techniques to increase capacity in a wireless communications system. In an aspect, systematic non-transmission, or “blanking,” of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null-rate frames carrying zero traffic bits. Provisions are nevertheless made for the transmission of certain designated as “critical” by, e.g., a vocoder. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly, including updating an outer loop power control only in response to non-null rate frames. Further techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received over the FL. Possible ACK signaling methods are defined for channels associated with a cdma2000 wireless communications system. In another exemplary embodiment, techniques for reverse link early termination are also provided.

公开(公告)号：US20090303968A1

公开(公告)日：2009-12-10

申请号：US12424050

申请日：2009-04-15

Applicant: Yu-Cheun Jou ,  Peter J. Black ,  Rashid Ahmed A. Attar

Inventor： Yu-Cheun Jou ,  Peter J. Black ,  Rashid Ahmed A. Attar

IPC: H04W8/00 ,  H04J3/00

CPC classification number: H04W52/44 ,  H04B2201/709709 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0027 ,  H04L1/0029 ,  H04L1/0045 ,  H04L1/1607 ,  H04L1/1854 ,  H04L1/1887 ,  H04L2001/0092 ,  H04W52/58

Abstract: Techniques to increase capacity in a wireless communications system. In an aspect, systematic non-transmission, or “blanking,” of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null-rate frames carrying zero traffic bits. Provisions are nevertheless made for the transmission of certain designated as “critical” by, e.g., a vocoder. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly, including updating an outer loop power control only in response to non-null rate frames. Further techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received over the FL. Possible ACK signaling methods are defined for channels associated with a cdma2000 wireless communications system. In another exemplary embodiment, techniques for reverse link early termination are also provided.

Abstract translation: 提高无线通信系统容量的技术。 在一方面，提供了在通信系统中传输的最小速率帧的系统非传输或“消隐”。 在示例性实施例中，cdma2000语音通信系统中的第八速率帧被系统地替换为带有零业务位的零速率帧。 然而，对于由例如声码器指定为“关键”的某些设备进行了规定。 接收机检测到零速率或非零速率传输的存在并相应地处理接收到的帧，包括仅响应于非空速率帧来更新外部环路功率控制。 提供了用于改变导频传输门控模式以辅助接收机检测零速率帧的其它技术。 在另一方面，提供了通过无线通信链路的信号传输的提前终止。 在示例性实施例中，基站（BS）通过前向链路（FL）向移动站（MS）发送用于帧的功率控制组（PCG），直到MS通过反向链路确认帧的准确接收 （RL），可能在帧的所有PCG之前都被接收到FL。 针对与cdma2000无线通信系统相关的通道定义了可能的ACK信令方法。 在另一示例性实施例中，还提供了用于反向链路提前终止的技术。

公开(公告)号：US07616608B2

公开(公告)日：2009-11-10

申请号：US10502091

申请日：2003-08-11

Applicant: Hiroaki Sudo

Inventor： Hiroaki Sudo

IPC: H04B7/216 ,  H04B7/208 ,  H04J3/00

CPC classification number: H04W52/42 ,  H04B1/7103 ,  H04B2201/709709 ,  H04L1/0002 ,  H04L1/16 ,  H04L1/1829 ,  H04L5/026 ,  H04L25/0224 ,  H04L2001/0096

Abstract: The number of multiplexing of individual transmit symbols is selected by means of selection sections B1 through B5. The number of spread signals selected by selection sections B1 through B5 are multiplexed adders C1 through C5. By this means, it is possible to select inter-code interference in code division multiplexed signal transmission on a symbol-by-symbol basis, enabling error rate characteristic quality to be selected on a symbol-by-symbol basis. As a result, if a symbol for which the number of multiplexing is reduced and error rate characteristics are made good is selected as appropriate, error rate characteristics can be improved without degrading frequency characteristics so much.

Abstract translation: 各个发送符号的复用次数通过选择部B1〜B5进行选择。 由选择部B1〜B5选择的扩展信号的数量是多路复用的加法器C1〜C5。 通过这种方式，可以在逐个符号的基础上选择码分多路复用信号传输中的码间干扰，使得可以逐个符号地选择错误率特性质量。 结果，如果适当地选择多路复用的数量减少和错误率特性良好的符号，则可以在不降低频率特性的情况下提高错误率特性。