-
1.发明授权Stochastic transmission power level adjustment in a random access channel in a radio communications system and method 有权无线电通信系统随机接入信道中的随机发射功率电平调整及方法公开(公告)号：US07526307B1
公开(公告)日：2009-04-28
申请号：US09959215
申请日：2000-04-04
IPC分类号： H04Q7/20
CPC分类号： H04W74/0833 , H04W52/50
摘要： A number of subscriber stations use a random access channel in an uncoordinated manner and transmit signals in the channel at a transmission power level which is set on the basis of a random principle. Deterministic transmission power level control is replaced by stochastic transmission power level control. For repeated transmission from two subscriber stations, it is improbable that both will once again transmit at the same transmission power level. If collisions occur between two transmissions which do not now have the same received power level at the base station, then, providing the power level difference is sufficient, at least the more powerful signal can be evaluated (capture effect) and only the transmission of the weaker power level signal need be repeated. Thus, on average, this reduces the delay before successful reception of the transmissions.
摘要翻译： 多个用户站以不协调的方式使用随机接入信道，并且以基于随机原理设置的发送功率电平在信道中发送信号。 确定性发射功率电平控制由随机发射功率电平控制代替。 对于来自两个用户站的重复传输，两者都将以相同的传输功率级别再次传输是不可能的。 如果在基站现在不具有相同接收功率电平的两个传输之间发生冲突，则提供功率电平差是足够的，至少可以评估更强大的信号（捕获效应），并且仅传输 需要重复较弱的功率电平信号。 因此，平均而言，这在传输成功接收之前减少了延迟。
-
公开(公告)号：US07136424B2
公开(公告)日：2006-11-14
申请号：US10311896
申请日：2001-06-29
IPC分类号： H04L7/02
CPC分类号： H04L1/1819
摘要： A method transmits packet data in a communications system between a transmitter and a receiver. One potential goal is to ensure correct processing of such packet data. To this end, the packet data are repeatedly transmitted by the transmitter and are received by the receiver as data received earlier or data received later. A diversity combination of the data received earlier and the data received later is performed to reconstruct the transmitted data packet.
摘要翻译： 一种方法在发射机和接收机之间的通信系统中发送分组数据。 一个潜在的目标是确保对这种分组数据的正确处理。 为此，分组数据由发射机重复发送，并且由接收机作为先前接收的数据或稍后接收的数据接收。 执行先前接收的数据和稍后接收的数据的分集组合来重建发送的数据分组。
-
3.发明授权Method and communication system for estimating an error covariance matrix for the downlink in cellular mobile radio telephone networks with adaptive antennas 失效用于在具有自适应天线的蜂窝移动无线电话网络中估计用于下行链路的误差协方差矩阵的方法和通信系统公开(公告)号：US07555266B2
公开(公告)日：2009-06-30
申请号：US10276922
申请日：2001-05-22
CPC分类号： H04B7/0615 , H04B7/0617
摘要： Data is transmitted in a radio communication system having two or more base stations that are located in the network and having additional radio stations, which are each connected to one of the base stations via radio interfaces. At least one first base station has an antenna array with a multitude of antenna elements and with a signal processing device for the directional transmitting-receiving of data. The first base station temporally overlays data to a radio station, which is connected to the base station, for the transmission of data from an external base station to an external radio station connected thereto. The transmission of data from the first base station is also received from the external radio station. The objective is to reduce the amount of disturbance to the external radio station caused by transmissions from the base station in the downlink direction. To this end, the transmitting power of the antenna array of the base station is reduced in the direction toward the external radio station after a transmission of a training signal of the transmitted signal for the external radio station and after the reception of an assignable training signal of the external radio station.
摘要翻译： 数据在具有位于网络中的具有两个或更多个基站的无线电通信系统中发送，并且具有附加的无线电台，每个基站经由无线电接口连接到基站之一。 至少一个第一基站具有具有多个天线元件的天线阵列以及用于数据的定向发射接收的信号处理装置。 第一基站暂时将数据覆盖到连接到基站的无线电站，用于从外部基站向连接到其的外部无线电台传输数据。 来自第一基站的数据的传输也从外部无线电台接收。 目的是减少由下行链路方向上的基站的传输引起的对外部无线电台的干扰的量。 为此，在发送用于外部无线电台的发送信号的训练信号之后并且在接收到可分配的训练信号之后，基站的天线阵列的发射功率在朝向外部无线电台的方向上减小 的外部广播电台。
-
4.发明授权Method for transmitting packet information in a radio communication system 有权用于在无线电通信系统中发送分组数据信息的方法公开(公告)号：US07450587B2
公开(公告)日：2008-11-11
申请号：US10204036
申请日：2001-02-14
IPC分类号： H04L12/54
摘要： In a packet data transmission via a radio interface of a communication system, a packet number as identification information is transmitted for every data packet between data stations communicating with one another. To improve transmission security for the identification information, the identification information is multiplied and distributed separately to at least two data packets or transmitted separately in a separate information data packet.
摘要翻译： 在通过通信系统的无线电接口的分组数据传输中，对于彼此通信的数据站之间的每个数据分组，发送作为识别信息的分组号。 为了提高识别信息的传输安全性，将识别信息相乘并分开分配给至少两个数据分组，或者在单独的信息数据分组中单独发送。
-
-
-
搜索结果
4 条记录 (耗时 0.007 秒)
