专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07299402B2 Power control for reverse packet data channel in CDMA systems 有权
标题翻译： CDMA系统中反向分组数据信道的功率控制
公开(公告)号：US07299402B2
公开(公告)日：2007-11-20
申请号：US10779518
申请日：2004-02-13
申请人： Anthony C. K. Soong , Seong-Jun Oh , Shiau-He Shawn Tsai , Young C. Yoon
发明人： Anthony C. K. Soong , Seong-Jun Oh , Shiau-He Shawn Tsai , Young C. Yoon
IPC分类号： H03M13/09 , H04B7/0005 , H04L1/16
CPC分类号： H04W52/267 , H04L1/0002 , H04L1/0025 , H04L1/0026 , H04L1/0039 , H04L1/0081 , H04L1/08 , H04L1/20 , H04W52/146 , H04W52/16 , H04W52/20 , H04W52/325
摘要： A method of reverse link power control for a reverse packet data channel in a wireless communication system allows a mobile station to autonomously change its data transmission rate. The mobile station transmits packet data over a reverse packet data channel having a data rate variant transmit power level that varies based on a transmit data rate on the packet data channel. The mobile station further transmits control signals over a reverse control channel associated with the reverse packet data channel. The transmit power level of the reverse control channel is such that the transmit power level does not vary with the transmit data rate on the packet data channel. The radio base station measures the strength of the received signals on the reverse control channel, compares the measured strength to a power control set point, and generates a power control signal responsive to the comparison of the control signal to the power control set point.
摘要翻译：无线通信系统中的反向分组数据信道的反向链路功率控制方法允许移动台自主地改变其数据传输速率。该移动站通过具有基于分组数据信道上的发送数据速率而变化的数据速率变化发射功率电平的反向分组数据信道来发送分组数据。移动台还通过与反向分组数据信道相关联的反向控制信道来发送控制信号。反向控制信道的发射功率电平使得发射功率电平不随分组数据信道上的发送数据速率而变化。无线电基站测量反向控制信道上的接收信号的强度，将测得的强度与功率控制设定点进行比较，并根据控制信号与功率控制设定点的比较产生功率控制信号。

2. 发明授权

US5870668A Amplifier having distortion compensation and base station for radio communication using the same 失效
标题翻译：具有失真补偿的放大器和使用其的无线电通信基站
公开(公告)号：US5870668A
公开(公告)日：1999-02-09
申请号：US688443
申请日：1996-07-30
申请人： Takeshi Takano , Yasuyuki Oishi , Eisuke Fukuda , Hideto Furukawa , Kazuo Nagatani
发明人： Takeshi Takano , Yasuyuki Oishi , Eisuke Fukuda , Hideto Furukawa , Kazuo Nagatani
IPC分类号： H03D7/16 , H03F1/32 , H04B7/0005
CPC分类号： H03D7/168 , H03F1/3241 , H03F2200/372
摘要： A amplifier having distortion compensation is employed as a power amplifier for amplifying a linear modulated signal or a low noise amplifier for amplifying a linear modulated signal. The amplifier having distortion compenssation includes an amplifier circuit for amplifying an input signal; an error detecting circuit for obtaining an error signal between the input signal to and an output signal from the amplifier circuit; a coefficient generating circuit for generating compensation coefficients to compensate distortion components of characteristics of the amplifier circuit, based on the error signal according to an adaptive type algorithm; a first outputting circuit for outputting a generated compensation coefficient corresponding to the input signal; and a multiplying circuit for multiplying the generated compensation coefficient to the input signal and inputting a multiplied coefficient to the amplifier circuit.
摘要翻译：使用具有失真补偿的放大器作为用于放大线性调制信号的功率放大器或用于放大线性调制信号的低噪声放大器。具有失真补偿的放大器包括用于放大输入信号的放大器电路; 用于获得来自放大器电路的输入信号与输出信号之间的误差信号的误差检测电路; 系数产生电路，用于根据自适应型算法产生补偿系数以补偿放大器电路的特性的失真分量; 第一输出电路，用于输出与输入信号对应的产生的补偿系数; 以及乘法电路，用于将所生成的补偿系数与输入信号相乘，并将乘法系数输入到放大器电路。

3. 发明授权

US5546411A Method and apparatus for adaptively selecting a communication strategy in a selective call radio communication system 失效
标题翻译：一种用于在选呼通信系统中自适应地选择通信策略的方法和装置
公开(公告)号：US5546411A
公开(公告)日：1996-08-13
申请号：US396304
申请日：1995-02-28
申请人： Clifford D. Leitch , Robert J. Schwendeman , Philip P. Macnak
发明人： Clifford D. Leitch , Robert J. Schwendeman , Philip P. Macnak
IPC分类号： H04W76/04 , H04B7/005 , H04L1/00 , H04L1/18 , H04W52/18 , H04W88/18 , H04B7/0005 , H04B7/26
CPC分类号： H04L1/0026 , H04L1/0015 , H04L1/1671 , H04W52/18 , H04L1/0002 , H04L1/0009 , H04L1/18 , H04W88/185
摘要： A method and apparatus adaptively selects a communication strategy for communicating a message in a selective call radio communication system including a fixed portion (100) and a portable portion (101). The fixed portion (100) transmits (402) an alert signal to the portable portion (101), and awaits (404) an acknowledgment signal including a signal quality estimate from the portable portion (101). The portable portion (101) receives (602) the alert signal, and computes (604, 606) the signal quality estimate therefrom. The portable portion (101) then sends (608) the acknowledgment signal to the fixed portion (100). In response to the acknowledgment signal, the fixed portion (100) selects (407) a transmission strategy in accordance with the signal quality estimate. For compatibility, the transmission strategy requires a matching reception strategy in the portable portion (101). After sending the acknowledgment signal, the portable portion (101) selects (609) the matching reception strategy in accordance with the signal quality estimate sent in the acknowledgment signal without requiring further communication with the fixed portion (100).
摘要翻译：方法和装置在包括固定部分（100）和便携式部分（101）的选择性呼叫无线电通信系统中自适应地选择用于传送消息的通信策略。固定部分（100）向便携式部分（101）发送（402）警报信号，并且从便携式部分（101）等待（404）包括信号质量估计的确认信号。便携式部分（101）接收（602）警报信号，并从其计算（604,606）信号质量估计。便携式部分（101）然后将确认信号发送（608）给固定部分（100）。响应于确认信号，固定部分（100）根据信号质量估计选择（407）传输策略。为了兼容性，传输策略需要便携式部分（101）中的匹配接收策略。在发送确认信号之后，便携式部分（101）根据在确认信号中发送的信号质量估计来选择匹配接收策略（609），而不需要与固定部分（100）的进一步通信。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式