公开(公告)号：US20060056346A1

公开(公告)日：2006-03-16

申请号：US11214900

申请日：2005-08-31

申请人： Sunil Vadgama ,  Rahim Tafazolli

发明人： Sunil Vadgama ,  Rahim Tafazolli

IPC分类号： H04Q7/00

CPC分类号： H04W72/1278 ,  H04L47/14 ,  H04W8/20 ,  H04W28/14 ,  H04W72/1221 ,  H04W72/1231 ,  H04W72/1252

摘要： A method of obtaining a relative indicator for use in scheduling uplink transmissions from a plurality of source user equipments to a base station is disclosed. The relative indicator indicates the status of a user equipment in comparison to the status of the other user equipments, therefore allowing a user equipment to make more efficient scheduling decisions. The method comprises the steps of determining, for each user equipment, a first indicator which is indicative of a status of that user equipment, determining at least one second indicator from the first indicators obtained for all user equipments and broadcasting the or each second indicator to all user equipments. In this way, a significant reduction the downlink signalling load can be achieved.

摘要翻译： 公开了一种获取用于从多个源用户设备向基站调度上行链路传输的相对指标的方法。 与其他用户设备的状态相比，相对指示符指示用户设备的状态，从而允许用户设备进行更有效的调度决策。 该方法包括以下步骤：对于每个用户设备，确定指示该用户设备的状态的第一指示符，从针对所有用户设备获得的第一指示符中确定至少一个第二指示符，并将该或每个第二指示符广播到 所有用户设备。 以这种方式，可以实现下行链路信令负载的显着减少。

公开(公告)号：US20050025254A1

公开(公告)日：2005-02-03

申请号：US10901901

申请日：2004-07-29

申请人： Yassin Awad ,  Sunil Vadgama

发明人： Yassin Awad ,  Sunil Vadgama

IPC分类号： H04B7/26 ,  H04J13/00 ,  H04L1/00 ,  H04L27/04

CPC分类号： H04L1/0021 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/203

摘要： In an adaptive modulation and coding method one or more adjustable values are created (S1), each corresponding to at least one of a plurality of available modulation and coding levels applicable to a signal transmitted from a transmitter to a receiver, and each representing a change to the level(s) to which it corresponds. One or more of said adjustable values is/are adjusted in dependence upon whether or not the signal is received successfully by the receiver (S2-S5). One of said available modulation and coding levels is selected (S6-S8) to apply to the signal based on such an adjustable value. Such a method can enable the appropriate modulation and coding level to be selected even when the path and channel conditions vary. The method is applicable to selecting modulation and coding levels in a high-speed downlink packet access system of a wireless communication network.

摘要翻译： 在自适应调制和编码方法中，创建一个或多个可调整值（S1），每个对应于可应用于从发射机发射到接收机的信号的多个可用调制和编码电平中的至少一个，并且每个代表变化 到它对应的级别。 根据接收机成功接收到的信号（S2-S5）来调整所述可调节值中的一个或多个。 选择所述可用调制和编码电平中的一个（S6-S8），以基于这样的可调整值应用于信号。 即使当路径和信道条件变化时，这种方法也可以使得能够选择适当的调制和编码级别。 该方法适用于在无线通信网络的高速下行链路分组接入系统中选择调制和编码级别。

公开(公告)号：US20080043710A1

公开(公告)日：2008-02-21

申请号：US11840595

申请日：2007-08-17

申请人： Yuefeng Zhou ,  Michael John Hart ,  Sunil Vadgama

发明人： Yuefeng Zhou ,  Michael John Hart ,  Sunil Vadgama

IPC分类号： H04B7/212

CPC分类号： H04W16/26 ,  H04B7/15507 ,  H04B7/2606

摘要： A transmission method for use in a multi-hop wireless communication system is provided. The method includes, for two apparatuses having overlapping transmission coverage areas, one of the two said apparatuses being an intermediate apparatus, transmitting a first transmission signal from a first one of those apparatuses in a first transmission window of a particular transmission interval and transmitting a second transmission signal from the second one of those apparatuses in a second transmission window of the particular transmission interval but not in said first transmission window, so that a communication apparatus located in the coverage areas of both the first and second apparatuses can receive said first transmission signal substantially without interference from said second transmission signal.

摘要翻译： 提供了一种用于多跳无线通信系统的传输方法。 该方法包括对于具有重叠的传输覆盖区域的两个设备，两个所述设备之一是中间设备，在特定传输间隔的第一传输窗口中从这些设备中的第一个传输第一传输信号，并发送第二传输信号 在特定传输间隔的第二传输窗口中的第二传输窗口中的第二传输信号，而不在所述第一传输窗口中的传输信号，使得位于第一和第二设备的覆盖区域中的通信设备可以接收所述第一传输信号 基本上没有来自所述第二传输信号的干扰。

公开(公告)号：US20080045238A1

公开(公告)日：2008-02-21

申请号：US11840518

申请日：2007-08-17

申请人： Yuefeng Zhou ,  Michael John Hart ,  Sunil Vadgama

发明人： Yuefeng Zhou ,  Michael John Hart ,  Sunil Vadgama

IPC分类号： H04Q7/20

CPC分类号： H04L5/143 ,  H04L5/0007 ,  H04L25/022 ,  H04L25/0222 ,  H04L25/0228 ,  H04L27/2602 ,  H04W24/00 ,  H04W28/18 ,  H04W48/16

摘要： A wireless transmission method for use in a wireless communication system is provided. The system includes at least two communication apparatuses which may experience relative movement therebetween. One such communication apparatus is a source apparatus that is operable to transmit information to the destination apparatus, which is the other communication apparatus. The wireless transmission method includes, at two or more time instants, obtaining a measure of channel characteristics between the source apparatus and the destination apparatus. Furthermore, the method includes calculating a correlation factor between the at least two time-consecutive measures over time, and employing the correlation factor or a value derived therefrom as an estimate of relative movement between the source apparatus and the destination apparatus in determining a transmission parameter. Moreover, the method includes transmitting a transmission signal from the source apparatus to the destination apparatus using the determined parameter.

摘要翻译： 提供了一种在无线通信系统中使用的无线传输方法。 该系统包括可以经历它们之间的相对运动的至少两个通信设备。 一种这样的通信装置是可操作以将信息发送到作为另一通信装置的目的地装置的源装置。 无线传输方法在两个或多个时刻包括在源设备和目的设备之间获得信道特性的度量。 此外，该方法包括计算随时间的至少两个时间连续测量之间的相关因子，并且在确定传输参数时采用相关因子或其导出的值作为源设备和目的地设备之间的相对移动的估计 。 此外，该方法包括使用确定的参数从源设备向目的地设备发送传输信号。