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1. 发明授权

US07239847B2 Method and apparatus for adaptive server selection in a data communication system 有权
标题翻译：数据通信系统中自适应服务器选择的方法和装置
公开(公告)号：US07239847B2
公开(公告)日：2007-07-03
申请号：US09915736
申请日：2001-07-26
申请人： Rashid A. Attar , Rajiv Vijayan , Roberto Padovani , Nagabhushana T. Sindhushayana , Qiang Wu , Peter J. Black , Eduardo A. S. Esteves
发明人： Rashid A. Attar , Rajiv Vijayan , Roberto Padovani , Nagabhushana T. Sindhushayana , Qiang Wu , Peter J. Black , Eduardo A. S. Esteves
IPC分类号： H04B15/00
CPC分类号： H04W36/18 , H04L1/20 , H04W36/30 , H04W52/24 , H04W52/26
摘要： Methods and apparatus for selecting a serving sector in a high rate data (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which a sector of an Access Point may send data packets to an Access Terminal. The sector is selected by the Access Terminal to achieve the highest data throughput while maintaining a targeted packet error rate. The Access Terminal employs various methods to evaluate quality metrics of forward and reverse links from and to different sectors, and uses the quality metrics to select the sector to send data packets to the Access Terminal.
摘要翻译：公开了在高速率数据（HDR）通信系统中选择服务扇区的方法和装置。示例性HDR通信系统定义了一组数据速率，在该组数据速率下，接入点的扇区可以向接入终端发送数据分组。访问终端选择该扇区以实现最高的数据吞吐量，同时保持目标分组错误率。接入终端采用各种方法来评估来自不同扇区的前向和反向链路的质量度量，并使用质量度量来选择扇区将数据分组发送到接入终端。

2. 发明授权

US07177648B2 Method and apparatus for selecting a serving sector in a data communication system 有权
标题翻译：用于在数据通信系统中选择服务扇区的方法和装置
公开(公告)号：US07177648B2
公开(公告)日：2007-02-13
申请号：US10728635
申请日：2003-12-05
申请人： Rashid A. Attar , Rajiv Vijayan , Roberto Padovani , Nagabhushana T. Sindhushayana , Qiang Wu , Peter J. Black , Eduardo A. S. Esteves
发明人： Rashid A. Attar , Rajiv Vijayan , Roberto Padovani , Nagabhushana T. Sindhushayana , Qiang Wu , Peter J. Black , Eduardo A. S. Esteves
IPC分类号： H04Q7/20
CPC分类号： H04W36/18 , H04L1/20 , H04W36/30 , H04W52/24 , H04W52/26
摘要： Methods and apparatus for selecting a serving sector in a high rate data (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which a sector of an Access Point may send data packets to an Access Terminal. The sector is selected by the Access Terminal to achieve the highest data throughput while maintaining a targeted packet error rate. The Access Terminal employs various methods to evaluate quality metrics of forward and reverse links from and to different sectors, and uses the quality metrics to select the sector to send data packets to the Access Terminal.
摘要翻译：公开了在高速率数据（HDR）通信系统中选择服务扇区的方法和装置。示例性HDR通信系统定义了一组数据速率，在该组数据速率下，接入点的扇区可以向接入终端发送数据分组。访问终端选择该扇区以实现最高的数据吞吐量，同时保持目标分组错误率。接入终端采用各种方法来评估来自不同扇区的前向和反向链路的质量度量，并使用质量度量来选择扇区将数据分组发送到接入终端。

3. 发明授权

US06757520B2 Method and apparatus for selecting a serving sector in a data communication system 有权
公开(公告)号：US06757520B2
公开(公告)日：2004-06-29
申请号：US09892378
申请日：2001-06-26
申请人： Rashid A. Attar , Rajiv Vijayan , Roberto Padovani , Nagabhushana T. Sindhushayana , Qiang Wu , Peter J. Black , Eduardo A. S. Esteves
发明人： Rashid A. Attar , Rajiv Vijayan , Roberto Padovani , Nagabhushana T. Sindhushayana , Qiang Wu , Peter J. Black , Eduardo A. S. Esteves
IPC分类号： H04B100
CPC分类号： H04W36/18 , H04L1/20 , H04W36/30 , H04W52/24 , H04W52/26
摘要： Methods and apparatus for selecting a serving sector in a high rate data (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which a sector of an Access Point may send data packets to an Access Terminal. The sector is selected by the Access Terminal to achieve the highest data throughput while maintaining a targeted packet error rate. The Access Terminal employs various methods to evaluate quality metrics of forward and reverse links from and to different sectors, and uses the quality metrics to select the sector to send data packets to the Access Terminal.

4. 发明授权

US07127654B2 Method and an apparatus for a quick retransmission of signals in a communication system 有权
公开(公告)号：US07127654B2
公开(公告)日：2006-10-24
申请号：US10712582
申请日：2003-11-12
申请人： Ahmad Jalali , Eduardo A. S. Esteves , Nagabhushana T. Sindhushayana , Peter J. Black , Rashid A. Attar
发明人： Ahmad Jalali , Eduardo A. S. Esteves , Nagabhushana T. Sindhushayana , Peter J. Black , Rashid A. Attar
IPC分类号： G08C25/02 , H04J3/24 , H04L7/00
CPC分类号： H04L1/1887 , H04L1/1692 , H04L1/1809 , H04L1/1848 , H04L1/1877 , H04L1/188
摘要： A method and an apparatus for quick retransmission of signals in a communication system are disclosed. A transmitting terminal, e.g., a base station, transmits signals in a form of packets to a receiving terminal, e.g., a subscriber station. The receiving terminal determines if the packet was intended for the receiving terminal, and if so, the receiving terminal demodulates the packet. The receiving terminal then computes a quality metric of the packet, and compares the computed quality metric with a quality metric contained in the packet. If the quality metrics match, the packet is declared correctly received, and is forwarded for further processing. If the quality metrics fail to match, the receiving terminal sends a request for retransmission of the packet. The transmitting terminal determines which packet needs to be retransmitted based on the request for retransmission. The transmitting terminal then schedules the packet for retransmission.

5. 发明授权

US06694469B1 Method and an apparatus for a quick retransmission of signals in a communication system 有权
标题翻译：用于在通信系统中快速重传信号的方法和装置
公开(公告)号：US06694469B1
公开(公告)日：2004-02-17
申请号：US09549017
申请日：2000-04-14
申请人： Ahmad Jalali , Eduardo A. S. Esteves , Nagabhushana T. Sindhushayana , Peter J. Black , Rashid A. Attar
发明人： Ahmad Jalali , Eduardo A. S. Esteves , Nagabhushana T. Sindhushayana , Peter J. Black , Rashid A. Attar
IPC分类号： G08C2502
CPC分类号： H04L1/1887 , H04L1/1692 , H04L1/1809 , H04L1/1848 , H04L1/1877 , H04L1/188
摘要： A method and an apparatus for quick retransmission of signals in a communication system are disclosed. A transmitting terminal, e.g., a base station, transmits signals in a form of packets to a receiving terminal, e.g., a subscriber station. The receiving terminal determines if the packet was intended for the receiving terminal, and if so, the receiving terminal demodulates the packet. The receiving terminal then computes a quality metric of the packet, e.g., a cyclic redundancy check, and compares the computed quality metric with a quality metric contained in the packet. If the quality metrics match, the packet is declared correctly received, and is forwarded for further processing. If the quality metrics fail to match, the receiving terminal sends a request for retransmission of the packet. The transmitting terminal determines which packet needs to be retransmitted based on the request for retransmission. The transmitting terminal then schedules the packet for retransmission. If delivery of the packet in accordance with the aforementioned description fails, retransmission in accordance with conventional sequence-number-based schemes, e.g., radio link protocol, is attempted.
摘要翻译：公开了一种在通信系统中快速重发信号的方法和装置。发送终端（例如基站）以分组的形式向接收终端（例如，用户台）发送信号。接收终端确定分组是否用于接收终端，如果是，则接收终端解调分组。接收终端然后计算分组的质量度量，例如循环冗余校验，并将计算的质量度量与分组中包含的质量度量进行比较。如果质量度量匹配，则报文被正确地接收，并被转发用于进一步的处理。如果质量度量不匹配，则接收终端发送分组请求。发送终端根据重传请求确定哪个分组需要重传。然后，发送终端调度分组进行重传。如果根据上述描述的分组的传送失败，则尝试根据常规的基于序列号的方案，例如无线电链路协议进行重传。

6. 发明授权

US06760313B1 Method and apparatus for adaptive rate selection in a communication system 失效
标题翻译：通信系统中自适应速率选择的方法和装置
公开(公告)号：US06760313B1
公开(公告)日：2004-07-06
申请号：US09597516
申请日：2000-06-19
申请人： Nagabhushana T. Sindhushayana , Eduardo A. S. Esteves , Rashid A. Attar , Qiang Wu
发明人： Nagabhushana T. Sindhushayana , Eduardo A. S. Esteves , Rashid A. Attar , Qiang Wu
IPC分类号： G01R3108
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。

7. 发明授权

US07440431B2 Method and apparatus for adaptive rate selection in a communication system 失效
标题翻译：通信系统中自适应速率选择的方法和装置
公开(公告)号：US07440431B2
公开(公告)日：2008-10-21
申请号：US10834605
申请日：2004-04-28
申请人： Nagabhushana T. Sindhushayana , Eduardo A. S. Esteves , Rashid A. Attar , Qiang Wu
发明人： Nagabhushana T. Sindhushayana , Eduardo A. S. Esteves , Rashid A. Attar , Qiang Wu
IPC分类号： H04Q7/00
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.
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。

8. 发明授权

US07088701B1 Method and apparatus for adaptive transmission control in a high data rate communication system 有权
标题翻译：高数据速率通信系统中自适应传输控制的方法和装置
公开(公告)号：US07088701B1
公开(公告)日：2006-08-08
申请号：US09549416
申请日：2000-04-14
申请人： Rashid Attar , Roberto Padovani , Peter J. Black , Nagabhushana T. Sindhushayana , Eduardo A. S. Esteves , Mehmet Gurelli
发明人： Rashid Attar , Roberto Padovani , Peter J. Black , Nagabhushana T. Sindhushayana , Eduardo A. S. Esteves , Mehmet Gurelli
IPC分类号： H04B12/56
CPC分类号： H04L1/189 , H04L1/0001 , H04L1/002 , H04L1/0025 , H04L1/0028 , H04L1/1671 , H04L1/1809 , H04L1/1812 , H04L1/1838
摘要： In a high data rate communication system, a method and apparatus for improved throughput while transmitting data packets within multiple time slots. In order to avoid unnecessary retransmissions of a packet, a subscriber station sends a Stop-Repeat signal to a base station, causing the base station to cease further transmissions of the packet. In order to enable successful decoding of a packet, a subscriber station sends a Continue-Repeat signal to a base station, causing the base station to send retransmissions of the packet during time slots beyond a predetermined default number of time slots.
摘要翻译：在高数据速率通信系统中，一种在多个时隙内传输数据分组时提高吞吐量的方法和装置。为了避免分组的不必要的重传，用户台向基站发送停止重复信号，导致基站停止分组的进一步传输。为了能够成功解码分组，用户台向基站发送一个继续重复信号，使得基站在超过预定的默认数量的时隙的时隙内发送分组的重发。

9. 发明授权

US07417957B2 Method and apparatus for a rate control in a high data rate communication system 有权
标题翻译：高数据速率通信系统中速率控制的方法和装置
公开(公告)号：US07417957B2
公开(公告)日：2008-08-26
申请号：US10808939
申请日：2004-03-24
申请人： Nagabhushana T. Sindhushayana , Rashid A. Attar , Eduardo A. S. Esteves
发明人： Nagabhushana T. Sindhushayana , Rashid A. Attar , Eduardo A. S. Esteves
IPC分类号： H04L12/26 , H04B7/212
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.
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。

10. 发明授权

US08498308B2 Method and apparatus for fast closed-loop rate adaptation in a high rate packet data transmission 有权
标题翻译：用于在高速率分组数据传输中快速闭环速率适配的方法和装置
公开(公告)号：US08498308B2
公开(公告)日：2013-07-30
申请号：US11592568
申请日：2006-11-03
申请人： Eduardo A. S. Esteves , Rashid A. Attar , Nagabhushana T. Sindhushayana
发明人： Eduardo A. S. Esteves , Rashid A. Attar , Nagabhushana T. Sindhushayana
IPC分类号： H04W28/04
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整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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