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1. 发明申请

WO0031893A3 METHOD AND APPARATUS FOR POWER CONTROL BASED ON THE PROBABILITY THAT THE POWER CONTROL COMMAND IS IN ERROR 审中-公开
标题翻译：基于功率控制命令错误的可靠性进行功率控制的方法和装置
公开(公告)号：WO0031893A3
公开(公告)日：2001-12-20
申请号：PCT/US9927852
申请日：1999-11-23
申请人： QUALCOMM INC
发明人： BLACK PETER J , ESTEVES EDUARDO A S
IPC分类号： H04B7/005 , H04B7/26
CPC分类号： H04W52/18 , H04W52/56
摘要： A method and apparatus for controlling the transmit power of a plurality of mobile radio units (800) transmitting to a base station (900) in a mobile radio telephone system. For each of the mobile units (800) in the system, a signal strength estimate is measured at the base station (900) based on reverse link signals sent from the mobile units (800) and received at the base station (900), wherein each signal strength estimate is associated with one of the mobile units (800). The signal strength estimate associated with each mobile unit (800) is compared to a threshold. Next, for each mobile unit (800) in the plurality of mobile units (800), if the signal strength estimate associated with the mobile unit (800) is greater than the threshold, then a power control bit having a first value is assigned to the mobile unit (800); conversely, if the signal strength estimate associated with the mobile unit is less than the threshold, then a power control bit having a second value is assigned to the mobile unit (800). A variable gain that is a function of the difference between the signal strength estimate associated with the mobile unit (800) and the threshold is next applied to each power control bit. The variable gain applied to each power control bit increases as the magnitude of the difference between the signal strength estimate associated with the mobile unit (800) and the threshold increases. Each gain-adjusted power control bit is then transmitted to the mobile units (800).
摘要翻译：一种用于控制向移动无线电话系统中的基站（900）发送的多个移动无线电单元（800）的发射功率的方法和装置。对于系统中的每个移动单元（800），基于从移动单元（800）发送并在基站（900）接收的反向链路信号，在基站（900）处测量信号强度估计，其中每个信号强度估计与一个移动单元（800）相关联。将与每个移动单元（800）相关联的信号强度估计与阈值进行比较。接下来，对于多个移动单元（800）中的每个移动单元（800），如果与移动单元（800）相关联的信号强度估计值大于阈值，则具有第一值的功率控制比特被分配给移动单元（800）; 相反，如果与移动单元相关联的信号强度估计小于阈值，则将具有第二值的功率控制位分配给移动单元（800）。作为与移动单元（800）相关联的信号强度估计值与阈值之间的差异的函数的可变增益接下来应用于每个功率控制位。施加到每个功率控制位的可变增益随着与移动单元（800）相关联的信号强度估计值与阈值之间的差值的大小增加而增加。然后，每个增益调整功率控制位被发送到移动单元（800）。

2. 发明申请

WO0182521A3 METHOD AND APPARATUS FOR A RATE CONTROL IN A HIGH DATA RATE COMMUNICATION SYSTEM 审中-公开
标题翻译：高速数据通信系统中速率控制的方法和装置
公开(公告)号：WO0182521A3
公开(公告)日：2002-05-16
申请号：PCT/IB0100976
申请日：2001-04-18
申请人： QUALCOMM INC
发明人： SINDHUSHAYANA NAGABHUSHANA T , ATTAR RASHID A , ESTEVES EDUARDO A S
IPC分类号： H04J13/04 , H04L1/00 , H04L1/20
CPC分类号： H04L1/0021 , H04L1/0002 , H04L1/0016 , H04L1/002 , H04L1/0025 , Y02D50/10
摘要： A method and an apparatus for rate control in a high data rate (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which an access point (AP) may send data packets to an access terminal (AT). The data rate is selected to maintain targeted packet error rate (PER). The AT's open loop algorithm measures received signal to interference and noise ratio (SINR) at regular intervals, and uses the information to predict an average SINR over the next packet duration. The AT's closed loop algorithm measures a packet error rate (PER) of the received signal, and uses the PER to calculate a closed loop correction factor. The loop correction factor is added to the SINR value predicted by the open loop, resulting in an adjusted SINR. The AT maintains a look up table, which comprises a set of SINR thresholds that represent a minimum SINR necessary to successfully decode a packet at each data rate. The AT uses the adjusted set of SINR thresholds in the look up table to select the highest data rate, the SINR threshold of which is below the predicted SINR. The AT then requests, over the reverse link, that the AP send the next packet at this data-rate.
摘要翻译：公开了一种用于高数据速率（HDR）通信系统中的速率控制的方法和装置。示例性HDR通信系统定义了一组数据速率，接入点（AP）可在该组数据速率上向接入终端（AT）发送数据分组。选择数据速率以维持目标分组错误率（PER）。 AT的开环算法以规则的间隔测量接收信号与干扰和噪声比（SINR），并且使用该信息来预测下一个分组持续时间内的平均SINR。 AT的闭环算法测量接收信号的分组错误率（PER），并使用PER计算闭环校正因子。循环校正因子加到由开环预测的SINR值，得到调整后的SINR。 AT维护查找表，其包括一组SINR阈值，其表示在每个数据速率下成功解码分组所需的最小SINR。 AT在查找表中使用调整后的SINR阈值组来选择SINR阈值低于预测SINR的最高数据速率。 AT然后通过反向链路请求AP以该数据速率发送下一个分组。

3. 发明申请

WO0199385A2 METHOD AND APPARATUS FOR ADAPTIVE RATE SELECTION IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：在通信系统中自适应速率选择的方法和装置
公开(公告)号：WO0199385A2
公开(公告)日：2001-12-27
申请号：PCT/US0141051
申请日：2001-06-18
申请人： QUALCOMM INC
发明人： SINDHUSHAYANA NAGABHUSHANA T , ESTEVES EDUARDO A S , ATTAR RASHID A , WU QIANG
IPC分类号： H04J13/04 , H04L1/00 , H04Q7/38 , H04L100
CPC分类号： H04L1/0002
摘要： A method and an apparatus for adaptive data rate selection in a high data rate (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which an access point (AP) may transmit data packets to an access terminal (AT). The transmission data rate is selected to maintain target packet error rate (PER). Each AT monitors signal quality metric of signals received from APs. An AT receiving forward link signals from multiple ATs identifies the AT associated with the highest quality forward link signal. The AT then evaluates the rate at which a tail probability of error is greater than or equal to a target tail probability of error. The AT then generates a prediction of a first data rate at which the PER of packets received from the identified AP will not exceed the target PER, and a prediction of a second data rate at which the PER of packets received from the selected AP will exceed the target PER. The AT uses the values of the first and second data rates to predict probabilities of selecting the first and the second data rates such that a throughput of the HDR system is maximized and the target PER is achieved. The predicted probabilities are then utilized as biases for a method identifying whether the first data rate or the second data rate will be requested from the AP. The disclosed method and apparatus may be extended to the full set of available data rates.
摘要翻译：公开了一种在高数据速率（HDR）通信系统中进行自适应数据速率选择的方法和装置。示例性HDR通信系统定义了一组数据速率，接入点（AP）可在该组数据速率上向接入终端（AT）发送数据分组。选择传输数据速率以维持目标分组错误率（PER）。每个AT监视从AP接收的信号的信号质量度量。从多个AT接收前向链路信号的AT识别与最高质量的前向链路信号相关联的AT。 AT然后评估误差的概率大于或等于目标尾部误差概率的速率。然后，AT产生对从所识别的AP接收的分组的PER不超过目标PER的第一数据速率的预测，以及从所选择的AP接收的分组的PER将超过的第二数据速率的预测目标PER。 AT使用第一和第二数据速率的值来预测选择第一和第二数据速率的概率，使得HDR系统的吞吐量最大化并且实现目标PER。然后，将预测概率用作用于识别从AP请求第一数据速率或第二数据速率的方法的偏差。所公开的方法和装置可以扩展到全部可用数据速率。

4. 发明申请

WO02054617A3 METHOD AND APPARATUS FOR FORWARD POWER CONTROL IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：用于通信系统中前向功率控制的方法和装置
公开(公告)号：WO02054617A3
公开(公告)日：2003-06-19
申请号：PCT/US0150641
申请日：2001-12-27
申请人： QUALCOMM INC
发明人： WHEATLEY CHARLES E III , ATTAR RASHID A , ESTEVES EDUARDO A S
IPC分类号： H04B7/00 , H04B7/005 , H04B7/26
CPC分类号： H04W52/24 , H04W52/26 , H04W52/267 , H04W52/286 , H04W68/00 , H04W72/1231
摘要： In a data communication system capable of variable rate transmission, the data rate is determined by the largest C/I measurement of the forward link signals as measured at the Access Terminal (6). In one embodiment, the date transmission is scheduled based on an Access Terminal (6) initiated forward power control, which reduces forward link rate quantization loss due to excess transmit power. The Access Terminal (6) reports to the Access Point (4) the excess C/I estimate for the selected rate. The Access Point (4) then reduces its transmit power by an appropriate amount when serving that Access Terminal (6). In another embodiment, the data transmission is scheduled based on an Access Point (4) initiated forward power control. The Access Point (4) varies its transmit power over time either randomly or in synchronism with neighboring Access Point (4) in the communication system, which enables an increase in the throughput achieved by users that receive a significant amount of interference.
摘要翻译：在能够进行可变速率传输的数据通信系统中，数据速率由在接入终端（6）处测量的正向链路信号的最大C / I测量来确定。在一个实施例中，基于接入终端（6）发起的正向功率控制来调度日期传输，其减少由于超量发射功率引起的前向链路速率量化丢失。接入点（6）向接入点（4）报告所选择率的过量C / I估计。接入点（4）然后在为该接入终端（6）服务时将其发射功率降低适当的量。在另一个实施例中，基于接入点（4）启动的正向功率控制来调度数据传输。接入点（4）随时随地或与通信系统中的相邻接入点（4）同步地改变其发射功率，这使得能够增加接收到大量干扰的用户实现的吞吐量。

5. 发明申请

WO0189162A2 METHOD AND APPARATUS FOR FAST CLOSED-LOOP RATE ADAPTATION IN A HIGH RATE PACKET DATA TRANSMISSION 审中-公开
标题翻译：用于高速分组数据传输中快速闭环速率适应的方法和装置
公开(公告)号：WO0189162A2
公开(公告)日：2001-11-22
申请号：PCT/US0115381
申请日：2001-05-11
申请人： QUALCOMM INC
发明人： ESTEVES EDUARDO A S , ATTAR RASHID A , SINDHUSHAYANA NAGABHUSHANA T
IPC分类号： H04L12/56 , H04W28/18 , H04Q7/22 , H04Q7/30
CPC分类号： H04W16/02 , H04W28/04 , H04W28/18
摘要： In a high data rate communication system capable of variable rate transmission, an open loop rate control can be adjusted with a closed loop rate control to maximize throughput. An access point generates interleaved multi-slot packets that allow an access terminal to transmit indicator messages to the access point in accordance with recently received data carried within slots of the multi-slot packets.
摘要翻译：在能够进行可变速率传输的高数据速率通信系统中，可以通过闭环速率控制来调节开环速率控制以最大化吞吐量。接入点产生交错多时隙分组，其允许接入终端根据在多时隙分组的时隙内承载的最近接收的数据向接入点发送指示符消息。

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