Demodulator for frequency shift keyed signals
    1.
    发明授权
    Demodulator for frequency shift keyed signals 失效
    用于频移键控信号的解调器

    公开(公告)号:US5436589A

    公开(公告)日:1995-07-25

    申请号:US189376

    申请日:1994-01-31

    CPC分类号: H04L25/062 H04L27/1563

    摘要: A demodulator (414) for improving bit error rate performance where alternating bit patterns produce the worst occurrences of bit errors. The demodulator (414) consists of a zero threshold comparator circuit (502), a first threshold detector circuit (508), and a second threshold detector circuit (504). The zero threshold comparator circuit (502) receives a frequency information signal and slices it into a plurality of bits (522). The first threshold detector circuit (508) compares the frequency information signal to a predetermined threshold, which is selected to optimize bit error rate performance. The second detector threshold circuit (504) is used to ensure that an alternating bit pattern has occurred. The demodulator (414) also includes a control device circuit (516) for coupling the plurality of bits (522) from the zero threshold comparator (502) to the output of the control device as a decision output signal (416) when the frequency information signal falls outside of either the first or second detector thresholds (508), (504). If the frequency information signal falls within both thresholds of the detector devices then the decision output signal (416) for the control device (516) is formed by inverting the bit decision from the previous bit interval.

    摘要翻译: 一种用于改善误码率性能的解调器(414),其中交替位模式产生最差出现的位错误。 解调器(414)由零阈值比较器电路(502),第一阈值检测器电路(508)和第二阈值检测器电路(504)组成。 零阈值比较器电路(502)接收频率信息信号并将其分片成多个比特(522)。 第一阈值检测器电路(508)将频率信息信号与预定阈值进行比较,其被选择以优化误码率性能。 第二检测器阈值电路(504)用于确保发生交替位图案。 解调器(414)还包括控制装置电路(516),用于当频率信息(416)作为判定输出信号(416)将多个位(522)从零阈值比较器(502)耦合到控制装置的输出端 信号不在第一或第二检测器阈值(508),(504)之外。 如果频率信息信号落在检测器装置的两个阈值之内,则控制装置(516)的判定输出信号(416)是通过将来自前一位间隔的位决定反相来形成的。

    Method and apparatus for determining signal quality
    3.
    发明授权
    Method and apparatus for determining signal quality 失效
    用于确定信号质量的方法和装置

    公开(公告)号:US5490177A

    公开(公告)日:1996-02-06

    申请号:US216751

    申请日:1994-03-23

    IPC分类号: H04L1/24 H04L27/22

    CPC分类号: H04L27/22 H04L1/24

    摘要: A unique method and apparatus determines signal quality and/or bit reliability information for a plurality of phase modulated information symbols. This is accomplished by first detecting the phase of the received phase modulated signal (201). The resulting phase estimate is then compared against the nearest expected phase value to form a phase error signal (202). The phase error signal is then mapped into a symbol quality estimate (205/206), which is then averaged over multiple symbol intervals to form a signal quality indicator (207). Finally, bit reliability information is generated by weighting the in-phase (I) and quadrature (Q) components of the phase estimate by the derived signal quality indicator (209). With such a method and apparatus, signal quality and/or bit reliability information can be determined without the need for signal amplitude information.

    摘要翻译: 独特的方法和装置确定多个相位调制信息符号的信号质量和/或比特可靠性信息。 这是通过首先检测接收到的相位调制信号(201)的相位来实现的。 然后将所得相位估计与最近的预期相位值进行比较以形成相位误差信号(202)。 然后将相位误差信号映射到符号质量估计(205/206)中,然后在多个符号间隔上进行平均以形成信号质量指示符(207)。 最后,通过由导出的信号质量指示符(209)对相位估计的同相(I)和正交(Q)分量进行加权来生成比特可靠性信息。 利用这种方法和装置,可以确定信号质量和/或比特可靠性信息,而不需要信号幅度信息。

    System and Method for Downlink Signaling for High Speed Uplink Packet Access
    5.
    发明申请
    System and Method for Downlink Signaling for High Speed Uplink Packet Access 有权
    用于高速上行链路分组接入的下行链路信令的系统和方法

    公开(公告)号:US20100172303A1

    公开(公告)日:2010-07-08

    申请号:US12723383

    申请日:2010-03-12

    IPC分类号: H04W4/00

    摘要: A wireless communication system (100) and method for providing high speed uplink packet access from user equipment (128, 130) to a base station (114, 116, 118, 120). Each of the user equipment (128, 130) and the base station (114, 116, 118, 120) includes a transmitter (1106, 1206), a receiver (1104, 1204), and a controller (1108, 1208) coupled to the transmitter and the receiver. Data packets are transmitted from the user equipment (128, 130) to the base station (114, 116, 118, 120). Control information, corresponding to the data packets, is transmitted from the base station (114, 116, 118, 120) to the user equipment (128, 130). The control information includes an absolute grant channel indicator. The controller (1108) of the user equipment (128, 130) is configured to disable an uplink transmission of the transmitter based on a indicator in the control information.

    摘要翻译: 一种用于从用户设备(128,130)向基站(114,116,118,120)提供高速上行链路分组接入的无线通信系统(100)和方法。 每个用户设备(128,130)和基站(114,116,118,120)包括发射机(1106,1206),接收机(1104,1204)和控制器(1108,1208),其耦合到 发射机和接收机。 数据分组从用户设备(128,130)发送到基站(114,116,118,120)。 对应于数据分组的控制信息从基站(114,116,118,120)发送到用户设备(128,130)。 控制信息包括绝对授权通道指示符。 用户设备(128,130)的控制器(1108)被配置为基于控制信息中的指示符来禁止发射机的上行链路传输。

    System and Method for Downlink Signaling for High Speed Uplink Packet Access
    6.
    发明申请
    System and Method for Downlink Signaling for High Speed Uplink Packet Access 有权
    用于高速上行链路分组接入的下行链路信令的系统和方法

    公开(公告)号:US20100165951A1

    公开(公告)日:2010-07-01

    申请号:US12723392

    申请日:2010-03-12

    IPC分类号: H04W36/00

    摘要: A wireless communication system (100) and method for providing high speed uplink packet access from user equipment (128, 130) to a base station (114, 116, 118, 120). Each of the user equipment (128, 130) and the base station (114, 116, 118, 120) includes a transmitter (1106, 1206), a receiver (1104, 1204), and a controller (1108, 1208) coupled to the transmitter and the receiver. Data packets are transmitted from the user equipment (128, 130) to the base station (114, 116, 118, 120). Control information, corresponding to the data packets, is transmitted from the base station (114, 116, 118, 120) to the user equipment (128, 130). The control information includes at least a control channel acknowledgement field in an absolute grant channel assigned to the user equipment (128, 130). The controller (1108) of the user equipment (128, 130) is configured to utilize the channelization code(s) in response to handoff and/or entering an active channel state.

    摘要翻译: 一种用于从用户设备(128,130)向基站(114,116,118,120)提供高速上行链路分组接入的无线通信系统(100)和方法。 每个用户设备(128,130)和基站(114,116,118,120)包括发射机(1106,1206),接收机(1104,1204)和控制器(1108,1208),其耦合到 发射机和接收机。 数据分组从用户设备(128,130)发送到基站(114,116,118,120)。 对应于数据分组的控制信息从基站(114,116,118,120)发送到用户设备(128,130)。 控制信息至少包括分配给用户设备(128,130)的绝对授权信道中的控制信道确认字段。 用户设备(128,130)的控制器(1108)被配置为利用响应于切换和/或进入活动信道状态的信道化码。

    System and method for downlink signaling for high speed uplink packet access
    8.
    发明授权
    System and method for downlink signaling for high speed uplink packet access 有权
    用于高速上行链路分组接入的下行链路信令的系统和方法

    公开(公告)号:US07693110B2

    公开(公告)日:2010-04-06

    申请号:US11193207

    申请日:2005-07-29

    IPC分类号: H04Q7/20

    摘要: A wireless communication system (100) and method for providing high speed uplink packet access from user equipment (128, 130) to a base station (114, 116, 118, 120). Each of the user equipment (128, 130) and the base station (114, 116, 118, 120) includes a transmitter (1106, 1206), a receiver (1104, 1204), and a controller (1108, 1208) coupled to the transmitter and the receiver. Data packets are transmitted from the user equipment (128, 130) to the base station (114, 116, 118, 120). Control information, corresponding to the data packets, is transmitted from the base station (114, 116, 118, 120) to the user equipment (128, 130). The control information includes an absolute grant channel indicator and/or channelization code(s) assigned to the user equipment (128, 130). The controller (1108) of the user equipment (128, 130) is configured to minimize a number of channelization code per scheduling active set cell to be monitored by the user equipment based on the absolute grant channel indicator and/or to utilize the channelization code(s) in response to handoff and/or entering an active channel state.

    摘要翻译: 一种用于从用户设备(128,130)向基站(114,116,118,120)提供高速上行链路分组接入的无线通信系统(100)和方法。 每个用户设备(128,130)和基站(114,116,118,120)包括发射机(1106,1206),接收机(1104,1204)和控制器(1108,1208),其耦合到 发射机和接收机。 数据分组从用户设备(128,130)发送到基站(114,116,118,120)。 对应于数据分组的控制信息从基站(114,116,118,120)发送到用户设备(128,130)。 控制信息包括分配给用户设备(128,130)的绝对授权信道指示符和/或信道化码。 用户设备(128,130)的控制器(1108)被配置为使得由用户设备基于绝对授权信道指示符监控的每个调度活动集合小区的信道化码数量最小化,和/或利用信道化码 (s)响应于切换和/或进入活动信道状态。

    Frangible, spray dried agglomerated supports, method of making such supports, and olefin polymerization catalysts supported thereon
    9.
    发明授权
    Frangible, spray dried agglomerated supports, method of making such supports, and olefin polymerization catalysts supported thereon 失效
    易碎的,喷雾干燥的团聚载体,制备这种载体的方法和负载在其上的烯烃聚合催化剂

    公开(公告)号:US06329315B1

    公开(公告)日:2001-12-11

    申请号:US08878476

    申请日:1997-06-19

    IPC分类号: B01J2108

    摘要: Frangible, spray dried agglomerate catalyst supports are provided, e.g. of silica gel, which possess a controlled morphology of microspheroidal shape, rough, scabrous appearance, and interstitial void spaces which penetrate the agglomerate surface and are of substantially uniform size and distribution. The agglomerates also possess a 1-250 micron particle size, 1-1000 m2/gm. surface area, and an Attrition Quality Index (AQI) of at least 10. The agglomerates are derived from a mixture of dry milled inorganic oxide particles, e.g. silica gel, and optionally but preferably wet milled inorganic oxide particles, e.g. silica gel particles, (which preferably contain a colloidal segment of

    摘要翻译: 提供易碎的喷雾干燥的团聚体催化剂载体,例如 的硅胶,其具有受控的微球形状的形态,粗糙,粗糙的外观和穿透附聚物表面并且具有基本均匀的尺寸和分布的间隙空隙。 附聚物也具有1-250微米的粒度,1-1000m 2 / gm。 表面积和至少10的磨耗质量指数(AQI)。聚集体衍生自干磨的无机氧化物颗粒的混合物,例如。 硅胶,以及任选但优选湿法研磨的无机氧化物颗粒,例如。 硅胶颗粒(其优选含有<1微米颗粒的胶体部分)在水中成浆喷雾干燥。 高AQI保证凝聚物易碎,聚合性能提高。 认为受控的形态可以使附聚物的构成颗粒更均匀地浸渍或用常规的烯烃聚合催化剂涂覆。

    Supported catalyst containing tethered cation forming activator
    10.
    发明授权
    Supported catalyst containing tethered cation forming activator 失效
    负载催化剂含有束缚阳离子形成活化剂

    公开(公告)号:US6087293A

    公开(公告)日:2000-07-11

    申请号:US117470

    申请日:1998-03-02

    摘要: A support for use in preparing supported catalysts for addition polymerizations comprising the reaction product of: (A) an inorganic oxide material comprising reactive surface hydroxyl groups, at least some of said hydroxyl groups optionally having been functionalized an converted to a reactive silano moiety corresponding to the formula: --OSiR.sub.2 H, wherein R, independently each occurrence, is hydrogen C.sub.1-20 hydrocarbyl, or C.sub.1-20 hydrocarbyloxy, said inorganic oxide or functionalized derivative thereof comprising less than 1.0 mmol of reactive surface hydroxyl functionality per gram, and (B) an activator compound comprising: b.sub.1) a cation which is capable of reacting with a transition metal compound to form a catalytically active transition metal complex, and b.sub.2) a compatible anion containing at least one substituent able to react with the inorgnaic oxide, with residual hydroxyl functionality of the inorganic oxide, or with the reactive silane moiety, hereby covalently bonding the compatible anion to the support, catalysts formed therefrom, process of manufacture and the method to use.

    摘要翻译: PCT No.PCT / US96 / 17140 Sec。 371日期1998年3月2日 102(e)1998年3月2日PCT PCT 1996年10月25日PCT公布。 公开号WO97 / 19959 日期1997年6月5日,用于制备用于加成聚合的载体催化剂的载体,其包括以下反应产物:(A)包含反应性表面羟基的无机氧化物材料,至少一些所述羟基任选已被官能化转化为 对应于式-OSiR 2 H的反应性硅烷基部分,其中R各自独立地为氢C 1-20烃基或C 1-20烃氧基,所述无机氧化物或其官能化衍生物包含小于1.0mmol反应性表面羟基官能度/克 和(B)活化剂化合物,其包含:b1)能够与过渡金属化合物反应形成催化活性过渡金属络合物的阳离子,和b2)含有至少一个能够与无规性反应的取代基的相容阴离子 氧化物,具有无机氧化物的残余羟基官能团,或与反应性硅烷部分共价共轭 将相容的阴离子与载体,由其形成的催化剂,制备方法和使用方法相结合。