Method and apparatus for channel state feedback using arithmetic coding
    1.
    发明授权
    Method and apparatus for channel state feedback using arithmetic coding 有权
    使用算术编码的信道状态反馈的方法和装置

    公开(公告)号:US07746802B2

    公开(公告)日:2010-06-29

    申请号:US11140878

    申请日:2005-05-31

    摘要: Disclosed are the design and implementation of a CSI feedback channel in a multi-carrier wireless communication system. An apparatus and a method for channel state feedback using arithmetic coding are provided to ensure efficiency and reliability of a system by transmitting the CSI while compressing the CSI with a predetermined compression rate selected depending on a channel state. The apparatus for CSI feedback in a wireless communication system performing channel estimation at a transmitter or a receiver by using a communication channel includes a transmitter terminal transmitting a signal for CSI measurement by using the communication channel, and a receiver terminal receiving the signal from the transmitter terminal, checking a channel state based on the received signal, and transmitting the signal to the transmitter terminal after compressing the signal according to the channel state.

    摘要翻译: 公开了多载波无线通信系统中的CSI反馈信道的设计和实现。 提供了使用算术编码的信道状态反馈的装置和方法,以通过在按照信道状态选择的预定压缩率压缩CSI的同时发送CSI来确保系统的效率和可靠性。 在通过使用通信信道在发射机或接收机处执行信道估计的无线通信系统中的CSI反馈装置包括通过使用通信信道发送用于CSI测量的信号的发射机终端,以及从发射机接收信号的接收机终端 终端,根据接收到的信号检查信道状态,并根据信道状态对信号进行压缩后将信号发送到发送终端。

    Method and apparatus for channel state feedback using arithmetic coding
    2.
    发明申请
    Method and apparatus for channel state feedback using arithmetic coding 有权
    使用算术编码的信道状态反馈的方法和装置

    公开(公告)号:US20050265436A1

    公开(公告)日:2005-12-01

    申请号:US11140878

    申请日:2005-05-31

    摘要: Disclosed are the design and implementation of a CSI feedback channel in a multi-carrier wireless communication system. An apparatus and a method for channel state feedback using arithmetic coding are provided to ensure efficiency and reliability of a system by transmitting the CSI while compressing the CSI with a predetermined compression rate selected depending on a channel state. The apparatus for CSI feedback in a wireless communication system performing channel estimation at a transmitter or a receiver by using a communication channel includes a transmitter terminal transmitting a signal for CSI measurement by using the communication channel, and a receiver terminal receiving the signal from the transmitter terminal, checking a channel state based on the received signal, and transmitting the signal to the transmitter terminal after compressing the signal according to the channel state.

    摘要翻译: 公开了多载波无线通信系统中CSI反馈信道的设计和实现。 提供了使用算术编码的信道状态反馈的装置和方法,以通过在按照信道状态选择的预定压缩率压缩CSI的同时发送CSI来确保系统的效率和可靠性。 在通过使用通信信道在发射机或接收机处执行信道估计的无线通信系统中的CSI反馈装置包括通过使用通信信道发送用于CSI测量的信号的发射机终端,以及从发射机接收信号的接收机终端 终端,根据接收到的信号检查信道状态,并根据信道状态对信号进行压缩后将信号发送到发送终端。

    Methods and apparatuses for GPS coordinates extrapolation when GPS signals are not available
    3.
    发明授权
    Methods and apparatuses for GPS coordinates extrapolation when GPS signals are not available 有权
    当GPS信号不可用时GPS坐标外推的方法和装置

    公开(公告)号:US07855683B2

    公开(公告)日:2010-12-21

    申请号:US12264564

    申请日:2008-11-04

    IPC分类号: G01S19/42

    CPC分类号: G01S19/48

    摘要: Systems and methods for extrapolating GPS coordinates beyond line of sight are disclosed. A coordinate extrapolation system (CES) can include a memory, a processor, and a GPS receiver. The CES can receive GPS signals and determine GPS coordinates corresponding to a location. If GPS signals are unavailable, the CES models the surface of the earth and extrapolates the GPS coordinates corresponding to the location at which GPS signals are unavailable. Methods for extrapolating the GPS coordinates and calibrating the CES are also disclosed.

    摘要翻译: 公开了将GPS坐标超出视线外推的系统和方法。 坐标外插系统(CES)可以包括存储器,处理器和GPS接收器。 CES可以接收GPS信号并确定对应于一个位置的GPS坐标。 如果GPS信号不可用,则CES对地球表面进行建模,并对与GPS信号不可用位置相对应的GPS坐标进行外推。 还公开了外推GPS坐标和校准CES的方法。

    Method and apparatus for high rate packet data and low delay data transmissions
    4.
    发明授权
    Method and apparatus for high rate packet data and low delay data transmissions 有权
    用于高速率分组数据和低延迟数据传输的方法和装置

    公开(公告)号:US07068683B1

    公开(公告)日:2006-06-27

    申请号:US09697375

    申请日:2000-10-25

    摘要: In a wireless communication system a method for combination transmission of packet data and low delay data. In one embodiment a parallel signaling channel provides a message to receivers indicating a target recipient of packet data. The message also identifies the transmission channels used for packet data transmissions. Each receiver may then selectively decode only packets where the message identifies the receiver as a target recipient. The data packets stored in a buffer are ignored if the target recipient is another mobile unit. In one embodiment, the message is sent concurrently with the data packet on a parallel channel. In one embodiment, the message is punctured into the high rate packet data transmission.

    摘要翻译: 在无线通信系统中,分组数据和低延迟数据的组合传输方法。 在一个实施例中,并行信令信道向指示分组数据的目标接收者的接收机提供消息。 该消息还标识用于分组数据传输的传输信道。 然后,每个接收机可以仅选择性地仅解码消息将接收者标识为目标接收者的分组。 如果目标收件人是另一个移动单元,则会忽略存储在缓冲区中的数据包。 在一个实施例中,消息与并行信道上的数据分组同时发送。 在一个实施例中,消息被打入高速率分组数据传输。

    Method and apparatus for scheduling packet data transmissions in a wireless communication system
    5.
    发明申请
    Method and apparatus for scheduling packet data transmissions in a wireless communication system 有权
    一种用于在无线通信系统中调度分组数据传输的方法和装置

    公开(公告)号:US20050129063A1

    公开(公告)日:2005-06-16

    申请号:US11040743

    申请日:2005-01-21

    摘要: A method (18) for scheduling packet data transmissions in a wireless communication system wherein a per-user Priority Function (PF) (24) is based on a channel condition indicated by a Rate Request Indicator (RRI). The method also considers fairness criteria dictated by predetermined Quality of Service (QOS) requirements. In one embodiment, the rate request indicator is a Data Rate Request (DRR). In another embodiment, the rate request indicator is Carrier-to-Interference (C/I) information. In the exemplary embodiment, the base station calculates a Priority Function (PF) for the multiple mobile users. Each PF is a function of the rate request indicator and the projected throughput of a given mobile user. The PF values allow the base station to schedule active mobile units having pending data. The scheduling produces an approximately equal share of the allocated transmission time to the multiple mobile stations.

    摘要翻译: 一种用于在无线通信系统中调度分组数据传输的方法(18),其中每用户优先级功能(PF)(24)基于由速率请求指示符(RRI)指示的信道状况。 该方法还考虑了由预定的服务质量(QOS)要求所规定的公平性标准。 在一个实施例中,速率请求指示符是数据速率请求(DRR)。 在另一个实施例中,速率请求指示符是载波到干扰(C / I)信息。 在示例性实施例中,基站计算多个移动用户的优先级功能(PF)。 每个PF是速率请求指示符和给定移动用户的预计吞吐量的函数。 PF值允许基站调度具有未决数据的活动移动单元。 调度产生与多个移动站的分配的传输时间的近似相等的份额。

    Method and apparatus for controlling transmission power in a CDMA communication system
    6.
    发明授权
    Method and apparatus for controlling transmission power in a CDMA communication system 失效
    用于在CDMA通信系统中控制发射功率的方法和装置

    公开(公告)号:US06788685B1

    公开(公告)日:2004-09-07

    申请号:US09239451

    申请日:1999-01-28

    IPC分类号: H04L1228

    CPC分类号: H04W52/267 H04W52/60

    摘要: Method and apparatus for controlling transmission power in a closed loop power control system, wherein power control commands are based on the energy of the previous power control commands. In one embodiment, the method compares changes in the received energy of received power control commands against expected changes in those commands based on previously transmitted power control commands, and identifies suspicious responses to said previously transmitted power control commands. Hypothesis testing of the received power control commands is performed accordance any identified suspicious responses.

    摘要翻译: 用于控制闭环功率控制系统中的发射功率的方法和装置,其中功率控制命令基于先前功率控制命令的能量。 在一个实施例中,该方法基于先前发送的功率控制命令来比较接收到的功率控制命令的接收能量的变化与这些命令中的预期变化,并且识别对先前发送的功率控制命令的可疑响应。 接收到的功率控制命令的假设检验是根据任何确定的可疑响应进行的。

    Method and apparatus for combined puncturing and repeating of code symbols in a communications system
    7.
    发明授权
    Method and apparatus for combined puncturing and repeating of code symbols in a communications system 有权
    用于在通信系统中组合穿孔和重复代码符号的方法和装置

    公开(公告)号:US06675347B1

    公开(公告)日:2004-01-06

    申请号:US09618952

    申请日:2000-07-19

    IPC分类号: H03M1303

    CPC分类号: H04L1/0069

    摘要: Techniques for puncturing symbols in a communications system are disclosed. S symbols are received for a frame having a capacity of N symbols, with S being greater than N. P symbols need to be punctured so that remaining symbols fit into the frame. A number of puncture distances, D1 through DN, are computed based on S and P. A particular number of symbol punctures is determined for each computed puncture distance. P1 through PN symbol punctures are then performed at the distances of D1 through DN, respectively. For a more even distribution of the symbol punctures, each of the distances D1 through DN can be selected to be greater than or equal to a minimum puncture distance Dmin defined as Dmin=└S/P┘, where └ ┘ denotes a floor operator. The symbol punctures at each computed distance can be performed together or distributed with symbol punctures at other distances. In the alternative, an accumulator is configured to wrap around after it has been incremented to a value of S, each increment being of size P. A symbol index is incremented by one each time the accumulator is incremented by P, until the symbol index exceeds the value S. The process is advantageously begun with a puncture. Each time the accumulator wraps around, another puncture is performed. As another alternative, puncturing can be combined with symbol repetition.

    摘要翻译: 公开了一种在通信系统中对符号进行穿孔的技术。 对于具有N个符号的容量的帧接收S个符号,其中S大于N.P个符号需要被穿孔,使得剩余符号适合于帧。 基于S和P计算多个穿刺距离D1至DN。针对每个计算的穿刺距离确定特定数量的符号穿孔。 然后分别在D1到DN的距离处执行P1到PN符号穿孔。 为了更均匀地分配符号穿孔,可以将距离D1至DN中的每一个选择为大于或等于定义为Dmin =└S/ P“的最小穿孔距离Dmin,其中└表示地板操作者。 在每个计算距离处的符号穿孔可以一起执行或者以其他距离的符号穿孔分布。 在替代方案中,累加器被配置为在已经增加到S的值之后包围,每个增量为大小P.每当累加器递增P时,符号索引增加1,直到符号索引超过 值S.该方法有利地开始穿刺。 每次蓄能器包裹时,都会进行另一次穿刺。 作为另一种选择,穿孔可以与符号重复组合。

    Digital rights management using a digital agent
    8.
    发明授权
    Digital rights management using a digital agent 有权
    数字版权管理使用数字代理

    公开(公告)号:US09135410B2

    公开(公告)日:2015-09-15

    申请号:US13333132

    申请日:2011-12-21

    IPC分类号: G06K9/00 G06F21/10 G06N99/00

    摘要: A method for digital rights management includes a digital agent for contacting a media host. Media content is compared to a user profile and an identification confidence level is assigned to the media based on the comparison. A digital agent contacts a host of the media based on the identification confidence level, the type of media, and the context of the media. The digital agent requests one or more actions of a media host based on user designations concerning information related to the media. The identification confidence level is generated based on a plurality of user characteristic confidence levels which are generated based on media being analyzed.

    摘要翻译: 数字版权管理的方法包括用于联系媒体主机的数字代理。 将媒体内容与用户简档进行比较,并且基于该比较将识别置信度分配给媒体。 数字代理基于识别置信水平,媒体类型和媒体的上下文来联系媒体的主机。 数字代理根据与媒体相关的信息的用户指定来请求媒体主机的一个或多个动作。 基于基于正在分析的介质生成的多个用户特征置信水平来生成识别置信水平。