Method and apparatus for determining receive diversity in mobile station
    31.
    发明专利
    Method and apparatus for determining receive diversity in mobile station 有权
    用于确定移动站中接收多样性的方法和装置

    公开(公告)号:JP2009246961A

    公开(公告)日:2009-10-22

    申请号:JP2009062196

    申请日:2009-03-16

    CPC classification number: H04B7/0874 Y02D70/00 Y02D70/1242 Y02D70/444

    Abstract: PROBLEM TO BE SOLVED: To reduce power consumption of a mobile station that uses receive diversity. SOLUTION: For determining use of receive diversity in the mobile station, a control system 210 determines a demand level for use of communication resources. A transmitter communicates a message indicating use of receive diversity at a mobile station based on the determined demand level. A receiver 200 receives a channel and determines transmit power level of the channel for being at a lower or upper transmit power level limit. The control system 210 controls receive diversity by selecting a number of receiver chains 290 based on the determined transmit power level. In another aspect, the receiver 200 receives a channel and determines a channel condition of the channel and duration of the channel condition. The control system 210 controls receive diversity by selecting a number of receiver chains 290 based on the determined channel condition and the duration. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:降低使用接收分集的移动台的功耗。 解决方案:为了确定移动站中的接收分集的使用,控制系统210确定使用通信资源的需求级别。 发射机基于确定的需求级别在移动台上传送指示使用接收分集的消息。 接收机200接收信道并确定信道的发射功率电平处于较低或较高的发射功率电平限制。 控制系统210基于确定的发射功率电平来选择接收机链290的数量来控制接收分集。 在另一方面,接收机200接收信道并确定信道的信道状况和信道状态的持续时间。 控制系统210基于所确定的信道条件和持续时间来选择接收机链290的数量来控制接收分集。 版权所有(C)2010,JPO&INPIT

    Active set management with hotspot carriers
    33.
    发明专利
    Active set management with hotspot carriers 有权
    主动设置管理与HOTSPOT承运人

    公开(公告)号:JP2013243695A

    公开(公告)日:2013-12-05

    申请号:JP2013131976

    申请日:2013-06-24

    CPC classification number: H04W72/02 H04W72/082

    Abstract: PROBLEM TO BE SOLVED: To provide techniques for managing communications in a cellular network.SOLUTION: The cellular network can include one or more sectors in which hotspot carriers are deployed. The hotspot carriers can be available to mobile devices beyond sector boundaries defined by the signal strength of ubiquitous carriers. A mobile device can measure a signal strength of a candidate hotspot carrier and estimate a reverse link mobile device transmit power level for communicating on the hotspot carrier. The mobile device determines whether to add, remove, or maintain the hotspot carrier in its active set on the basis of the estimated transmit power so as to limit interference to the reverse link of non-hotspot sectors.

    Abstract translation: 要解决的问题:提供用于管理蜂窝网络中的通信的技术。解决方案:蜂窝网络可以包括其中部署热点载波的一个或多个扇区。 热点运营商可以适用于移动设备超出由普遍存在的运营商的信号强度定义的扇区边界。 移动设备可以测量候选热点载波的信号强度并且估计用于在热点载波上进行通信的反向链路移动设备发射功率电平。 移动设备基于估计的发射功率来确定是否在其活动集中添加,移除或维护热点载波,以便限制对非热点扇区的反向链路的干扰。

    Method and apparatus for quick retransmission of signals in communication system
    35.
    发明专利
    Method and apparatus for quick retransmission of signals in communication system 有权
    用于通信系统中信号快速恢复的方法和装置

    公开(公告)号:JP2011205694A

    公开(公告)日:2011-10-13

    申请号:JP2011132636

    申请日:2011-06-14

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for quick retransmission of signals in a communication system.SOLUTION: A transmitting terminal transmits signals in a form of packets to a receiving terminal, if the packet is intended for the receiving terminal, if so, the receiving terminal demodulates the packet. The receiving terminal then computes a quality metric of the packet, and compares the computed quality metric with a quality metric contained in the packet. If the quality metrics match, the packet is forwarded for further processing. If the quality metrics fail to match, the receiving terminal sends a request for retransmission of the packet. The transmitting terminal determines which packet needs to be retransmitted based on the request for retransmission. If delivery of the packet in accordance with the description fails, retransmission in accordance with a conventional sequence-number-based scheme, e.g., radio link protocol, is attempted.

    Abstract translation: 要解决的问题:提供一种在通信系统中快速重发信号的方法和装置。解决方案:如果分组旨在用于接收终端,则发送终端以分组的形式向接收终端发送信号,如果是 接收终端解调分组。 接收终端然后计算分组的质量度量,并将计算的质量度量与分组中包含的质量度量进行比较。 如果质量度量匹配,则转发数据包用于进一步处理。 如果质量度量不匹配,则接收终端发送分组请求。 发送终端根据重传请求确定哪个分组需要重传。 如果根据描述传送分组失败,则尝试按照常规基于序列号的方案,例如无线电链路协议进行重发。

    Noise variance estimation in wireless communications for diversity combining and log-likelihood scaling
    37.
    发明专利
    Noise variance estimation in wireless communications for diversity combining and log-likelihood scaling 审中-公开
    无线通信中的多样性组合和日志比例缩放的噪声变化估计

    公开(公告)号:JP2010252362A

    公开(公告)日:2010-11-04

    申请号:JP2010125972

    申请日:2010-06-01

    CPC classification number: H04L1/20 H04B1/1027 H04L27/2647

    Abstract: PROBLEM TO BE SOLVED: To provide a technique for an improved demodulation process that considers thermal noise for one or more antennas mounted on a receiver, regarding noise variance estimation in wireless communications.
    SOLUTION: Noise variance estimation includes: receiving a signal including an OFDM symbol having in-band tones including in-band pilot tones and band-edge tones including band-edge pilot tones and guard tones; estimating an equivalent noise variance for the in-band tones using the in-band pilot tones and channel estimates for the in-band pilot tones; and estimating an equivalent noise variance for the band-edge tones using the band-edge pilot tones, channel estimates for the band-edge pilot tones, and the guard tones.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种考虑无线通信中的噪声方差估计的用于考虑安装在接收机上的一个或多个天线的热噪声的改进的解调过程的技术。 解决方案:噪声方差估计包括:接收包括具有带内音调的OFDM符号的信号,包括带内导频音和包括带边导频音和保护音的带边音调; 使用带内导频音和用于带内导频音的信道估计来估计带内音调的等效噪声方差; 以及使用带边导频音,带边导频音的信道估计和保护音来估计带边音调的等效噪声方差。 版权所有(C)2011,JPO&INPIT

    Communication device for providing multimedia in group communication network
    38.
    发明专利
    Communication device for providing multimedia in group communication network 有权
    用于在集团通信网络中提供多媒体的通信设备

    公开(公告)号:JP2010213323A

    公开(公告)日:2010-09-24

    申请号:JP2010098931

    申请日:2010-04-22

    Inventor: BLACK PETER J

    Abstract: PROBLEM TO BE SOLVED: To provide a communication device for providing multimedia in a group communication network. SOLUTION: A system and method for providing group communication services is disclosed. Each of a plurality of group communication devices converts media, such as video, audio, image and/or data into data packets suitable for transmission over a data network, such as the Internet. The data packets are selectively transmitted through the data network to a communications manager. The communications manager acts as a configurable switch, allowing communications from any communication device to be selectively routed to the plurality of communication devices on the basis of the types of the communication devices and/or the requests received form the corresponding users. The communications manager further allows users of other communication systems and devices to participate in group communications with each other. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于在群组通信网络中提供多媒体的通信设备。 公开了一种用于提供组通信服务的系统和方法。 多个组通信设备中的每一个将诸如视频,音频,图像和/或数据的媒体转换成适合于诸如因特网的数据网络传输的数据分组。 选择性地通过数据网络将数据分组传送到通信管理器。 通信管理器用作可配置的交换机,允许来自任何通信设备的通信根据通信设备的类型和/或从对应的用户接收到的请求而选择性地路由到多个通信设备。 通信管理器还允许其他通信系统和设备的用户彼此参与群组通信。 版权所有(C)2010,JPO&INPIT

    Transmitter-oriented code division multiple access system using multi-user diversity to maximize throughput while equitably providing access to users
    39.
    发明专利
    Transmitter-oriented code division multiple access system using multi-user diversity to maximize throughput while equitably providing access to users 审中-公开
    使用多用户多元化的面向发送器的代码多路访问系统最大限度地提高用户访问权限的途径

    公开(公告)号:JP2010016842A

    公开(公告)日:2010-01-21

    申请号:JP2009184246

    申请日:2009-08-07

    Abstract: PROBLEM TO BE SOLVED: To provide a transmitter-oriented, distributed receiver using multi-user diversity provided by the distribution of the receiver. SOLUTION: Advantage is taken of uncorrelated variations over time in the condition of communication links between a common transmitter and several users. The greater the variation in the quality of a particular link over time is, the greater the increase in total system throughput provided is. A scheduler metric represents the instantaneous quality of the communication link between each user and the transmitter with respect to the average quality of the link. Alternatively, the scheduler metric represents the instantaneous channel condition with respect to the average data throughput over that channel. A common transmitting station uses the scheduler metric to directly compare the desirability of granting each channel access with the desirability of granting mutual channel access. Users with links having the greatest scheduler metric are allowed to access the channels. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种面向发射机的分布式接收机,使用由接收机分配提供的多用户分集。 解决方案:在普通发射机和多个用户之间的通信链路的情况下,优先考虑不相关的随时间变化的变化。 随着时间的推移,特定链路的质量变化越大,提供的总系统吞吐量的增加越大。 调度器度量表示相对于链路的平均质量的每个用户和发射机之间的通信链路的瞬时质量。 或者,调度器度量表示相对于该信道上的平均数据吞吐量的瞬时信道条件。 公共发射站使用调度器度量来直接比较授予每个信道接入的可取性与授予相互信道接入的可取性。 具有最大调度器度量值的链路的用户被允许访问频道。 版权所有(C)2010,JPO&INPIT

    Method and apparatus for tracking signal in a wireless communication system
    40.
    发明专利
    Method and apparatus for tracking signal in a wireless communication system 有权
    在无线通信系统中跟踪信号的方法和装置

    公开(公告)号:JP2009177805A

    公开(公告)日:2009-08-06

    申请号:JP2008330767

    申请日:2008-12-25

    CPC classification number: H04W52/40 H04B1/7117 H04W52/08

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for tracking signals in a wireless communication system.
    SOLUTION: In one embodiment, a base station includes a rake antenna having a plurality of fingers. When any of the fingers is unlocked, the base station waits a predetermined time period and then adjusts a lock detecting filter 30. The adjustment is performed based on comparison of received signal energy to an adjusted energy threshold 38. The comparison may result in an increased energy level of the filter. In one embodiment, if a mobile station is in soft hand-off mode, the base station ignores the lock state of the fingers and transmits power control information based on the received signal energy. If the mobile station is not in soft hand-off mode, a predetermined power control pattern is applied for gradual power adjustment.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于在无线通信系统中跟踪信号的方法和装置。 解决方案:在一个实施例中,基站包括具有多个指状物的前置天线。 当任何手指被解锁时,基站等待预定的时间段,然后调整锁定检测滤波器30.基于接收到的信号能量与调整的能量阈值38的比较来执行调整。比较可以导致增加 过滤器的能级。 在一个实施例中,如果移动站处于软切换模式,则基站忽略手指的锁定状态,并且基于接收到的信号能量发送功率控制信息。 如果移动台不处于软切换模式,则应用预定的功率控制模式来逐渐进行功率调整。 版权所有(C)2009,JPO&INPIT

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