公开(公告)号：US08428636B2

公开(公告)日：2013-04-23

申请号：US10043532

申请日：2002-01-11

申请人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

发明人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

IPC分类号： H04B7/00

CPC分类号： H04W52/60 ,  H04W52/32

摘要： A radio communication system comprises a secondary station (110) having a plurality of communication channels (226a,226b,226c) with a plurality of primary stations (100a,100b,100c). Separate closed loop power control is performed for each of the communication channels (226a,226b, 226c). This enables the optimum primary station for transmission of data to the secondary station (110) to be selected. Parameters derived from operation of each power control loop enable optimum setting of channel parameters for each primary station (100a,100b,100c).Such an arrangement is particularly suitable for a high speed downlink data service, where the fast selection of the optimum primary station and/or channel parameters improves link robustness and system throughput.

摘要翻译： 无线电通信系统包括具有多个主站（100a，100b，100c）的多个通信信道（226a，226b，226c）的次站（110）。 对于每个通信信道（226a，226b，226c）执行单独的闭环功率控制。 这使得能够选择用于将数据传输到次站（110）的最佳主站。 从每个功率控制回路的运行导出的参数使得能够对每个主站（100a，100b，100c）的通道参数进行最佳设定。 这种布置特别适用于高速下行链路数据业务，其中最佳主站和/或信道参数的快速选择提高了链路鲁棒性和系统吞吐量。

公开(公告)号：US06738640B1

公开(公告)日：2004-05-18

申请号：US09478838

申请日：2000-01-06

申请人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

发明人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

IPC分类号： H04Q720

CPC分类号： H04W52/228 ,  H04W52/12 ,  H04W52/225 ,  H04W52/283 ,  H04W52/287 ,  H04W52/288 ,  H04W52/362 ,  H04W52/44 ,  H04W52/50

摘要： A radio communication system has means for improving power control of a communication channel for the transmission of data after an interruption in the transmission. This is done by applying power control in steps of variable size at the start of a transmission, using a large step size initially which is reduced as the power approaches a target value. In one embodiment the step size is reduced when the sign of a power control command reverses, while in another embodiment the step size is reduced after a predetermined time. These techniques reduce the time taken for power control to be established, thereby addressing the problem that data transmissions at the start of a data channel are likely to be corrupted if the power level is too low, or to generate extra interference if the power level is too high.

摘要翻译： 无线电通信系统具有用于在传输中断之后改善用于传输数据的通信信道的功率控制的装置。 这是通过在传输开始时应用可变尺寸的功率控制来完成的，使用最初的大步长，其随着功率接近目标值而减小。 在一个实施例中，当功率控制命令的符号反转时，步长减小，而在另一个实施例中，步长在预定时间后减小。 这些技术减少了建立功率控制所需的时间，从而解决了如果功率电平过低，数据通道开始时的数据传输可能会被破坏的问题，或者如果功率电平为 太高。

公开(公告)号：US09178577B2

公开(公告)日：2015-11-03

申请号：US10128636

申请日：2002-04-23

申请人： Timothy J. Moulsley ,  Matthew P. J. Baker ,  Bernard Hunt

发明人： Timothy J. Moulsley ,  Matthew P. J. Baker ,  Bernard Hunt

IPC分类号： H04B7/04

CPC分类号： H04L45/24 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0632 ,  H04L1/0003 ,  H04L5/0055 ,  H04W40/125 ,  H04W52/48 ,  H04W74/004 ,  H04W88/02

摘要： A radio communication system comprises a communication channel for the transmission of data packets (302) from a primary station having a plurality of antennas to a secondary station having at least one antenna. The channel comprises a plurality of paths, and the primary station transmits a plurality of packets substantially simultaneously. Each of the plurality of packets is transmitted via a different subset of the plurality of paths, for example by arranging for each packet to be transmitted via a different antenna or antenna beam. The secondary station receives the plurality of data packets, determines whether each packet is received correctly and signals this determination (typically as an acknowledgement (304) or a negative acknowledgement (306)) to the primary station for each of the plurality of packets. The signaling may be by any convenient means, for example transmitting each acknowledgement or negative acknowledgement via a different subset of available uplink paths.

摘要翻译： 无线电通信系统包括用于从具有多个天线的主站向具有至少一个天线的次站传输数据分组（302）的通信信道。 信道包括多个路径，主站基本上同时发送多个分组。 多个分组中的每一个通过多个路径的不同子集发送，例如通过安排要经由不同天线或天线波束发射的每个分组。 次站接收多个数据分组，确定每个分组是否被正确接收，并且向多个分组中的每个分组的主站指示该确定（通常作为确认（304）或否定确认（306））到主站。 信令可以通过任何方便的手段，例如经由可用上行链路路径的不同子集来发送每个确认或否定确认。

公开(公告)号：US06826412B2

公开(公告)日：2004-11-30

申请号：US10420679

申请日：2003-04-22

申请人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

发明人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

IPC分类号： H04Q720

CPC分类号： H04W52/221 ,  H04W52/08 ,  H04W52/362 ,  H04W52/42 ,  H04W52/54 ,  H04W52/60

摘要： In a radio communication system having a primary station and plurality of secondary stations, power of uplink and downlink channels between the primary station and a secondary station is controlled in a closed loop manner by each station transmitting power control commands to the other station. Responsive to these commands receiving station adjusts its output power in steps. By considering a plurality of received power control commands receiving station may emulate the ability to use power control step sizes other than those it directly implements, for example step sizes smaller than its minimum or intermediate between implemented step sizes. Performance can thereby be improved under certain channel conditions. In one embodiment when required power control step size is less than the minimum step size of the receiving station, that station processes a group of power control commands to determine whether to adjust its output power by its minimum step size.

摘要翻译： 在具有主站和多个次站的无线电通信系统中，主站和次站之间的上行链路和下行链路信道的功率以闭环方式被每个站向另一个站发送功率控制命令来控制。 接收站响应这些命令会逐步调整其输出功率。 通过考虑多个接收的功率控制命令，接收站可以模拟使用除了其直接实现的功率控制步长之外的功率控制步长的能力，例如小于其最小值的步长或实现的步长之间的中间。 从而可以在某些渠道条件下改善性能。 在一个实施例中，当所需的功率控制步长小于接收站的最小步长时，该站处理一组功率控制命令以确定是否将其输出功率调整其最小步长。

公开(公告)号：US06611690B1

公开(公告)日：2003-08-26

申请号：US09571457

申请日：2000-05-16

申请人： Timothy J. Moulsley ,  Bernard Hunt ,  Matthew P. J. Baker

发明人： Timothy J. Moulsley ,  Bernard Hunt ,  Matthew P. J. Baker

IPC分类号： H04B700

CPC分类号： H04W52/221 ,  H04W52/362 ,  H04W52/42 ,  H04W52/60

摘要： In a radio communication system having a primary station and a plurality of secondary stations, the power of uplink and downlink channels between the primary station and a secondary station is controlled in a closed loop manner by each station transmitting power control commands to the other station. In response to these commands the receiving station adjusts its output power in steps. By combining a plurality of received power control commands before adjusting its output power the receiving station may emulate the ability to use a smaller power control step size than its minimum, thereby improving performance under certain channel conditions. In one embodiment when the required power control step size is less than the minimum step size of a particular station, that station processes a group of power control commands to determine whether to adjust its output power by its minimum step size. In an alternative embodiment the power control step size is fixed when the combining algorithm is used. The invention is applicable to power control in both primary and secondary stations.

公开(公告)号：US08433358B2

公开(公告)日：2013-04-30

申请号：US12581260

申请日：2009-10-19

申请人： Timothy J. Moulsley ,  Bernard Hunt ,  Matthew P. J. Baker

发明人： Timothy J. Moulsley ,  Bernard Hunt ,  Matthew P. J. Baker

IPC分类号： H04W74/00

CPC分类号： H04W52/221 ,  H04W52/362 ,  H04W52/42 ,  H04W52/60

摘要： In a radio communication system having a primary station and a plurality of secondary stations, the power of uplink and downlink channels between the primary station and a secondary station is controlled in a closed loop manner by each station transmitting power control commands to the other station. In response to these commands the receiving station adjusts its output power in steps.By combining a plurality of received power control commands before adjusting its output power the receiving station may emulate the ability to use a smaller power control step size than its minimum, thereby improving performance under certain channel conditions. In one embodiment when the required power control step size is less than the minimum step size of a particular station, that station processes a group of power control commands to determine whether to adjust its output power by its minimum step size. In an alternative embodiment the power control step size is fixed when the combining algorithm is used. The invention is applicable to power control in both primary and secondary stations.

公开(公告)号：US08195216B2

公开(公告)日：2012-06-05

申请号：US10871887

申请日：2004-06-17

申请人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

发明人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

IPC分类号： H04B7/00

CPC分类号： H04W52/228 ,  H04W52/12 ,  H04W52/225 ,  H04W52/283 ,  H04W52/287 ,  H04W52/288 ,  H04W52/362 ,  H04W52/44 ,  H04W52/50

摘要： A radio communication system has means for improving power control of a communication channel for the transmission of data after an interruption in the transmission. This is done by adjusting the transmission power immediately after the interruption by an offset from the power used before the interruption. The offset may be fixed or may be determined from the transmission power in the period before the interruption. This technique reduces, on average, the time taken for power control to be re-established, thereby addressing the problem that data transmissions immediately after the interruption are likely to be corrupted if the power level is too low, or to generate extra interference if the power level is too high.

摘要翻译： 无线电通信系统具有用于在传输中断之后改善用于传输数据的通信信道的功率控制的装置。 这是通过在中断之后立即调整发射功率与在中断之前使用的功率的偏移来完成的。 偏移量可以是固定的，或者可以在中断之前的时段内由发送功率确定。 平均来说，这种技术平均减少了重新建立功率控制所需的时间，从而解决了如果功率电平太低，中断后立即数据传输可能会被破坏的问题，或者如果 功率水平太高。

公开(公告)号：US07089028B1

公开(公告)日：2006-08-08

申请号：US09478467

申请日：2000-01-06

申请人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

发明人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

IPC分类号： H04B7/00

CPC分类号： H04W52/228 ,  H04W52/12 ,  H04W52/225 ,  H04W52/283 ,  H04W52/287 ,  H04W52/288 ,  H04W52/362 ,  H04W52/44 ,  H04W52/50

摘要： A radio communication system has means for ensuring that power control of a communication channel has been established before the transmission of data. This is done by delaying initial transmission of a data channel (either at the start of a transmission or after a pause) until after the initial transmission of control channels. In one embodiment the transmission of a data channel can be delayed until adequate power control has been established. These techniques overcome the problem that data transmissions at the start of a data channel are likely to be corrupted if their power level is too low, or to generate extra interference if their power level is too high.

摘要翻译： 无线电通信系统具有确保在传输数据之前已经建立了通信信道的功率控制的装置。 这通过延迟数据信道的初始传输（在传输开始或暂停之后）直到控制信道的初始传输之后来完成。 在一个实施例中，可以延迟数据信道的传输，直到建立足够的功率控制。 这些技术克服了数据通道开始时的数据传输如果其功率电平太低可能会被破坏，或者如果其功率电平太高则产生额外的干扰的问题。

公开(公告)号：US06754505B1

公开(公告)日：2004-06-22

申请号：US09478475

申请日：2000-01-06

申请人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

发明人： Matthew P. J. Baker ,  Timothy J. Moulsley ,  Bernard Hunt

IPC分类号： H04B700

CPC分类号： H04W52/228 ,  H04W52/12 ,  H04W52/225 ,  H04W52/283 ,  H04W52/287 ,  H04W52/288 ,  H04W52/362 ,  H04W52/44 ,  H04W52/50

摘要： A radio communication system has means for improving power control of a communication channel for the transmission of data after an interruption in the transmission. This is done by adjusting the transmission power immediately after the interruption by an offset from the power used before the interruption. The offset may be fixed or may be determined from the transmission power in the period before the interruption. This technique reduces, on average, the time taken for power control to be re-established, thereby addressing the problem that data transmissions immediately after the interruption are likely to be corrupted if the power level is too low, or to generate extra interference if the power level is too high.

摘要翻译： 无线电通信系统具有用于在传输中断之后改善用于传输数据的通信信道的功率控制的装置。 这是通过在中断之后立即调整发射功率与在中断之前使用的功率的偏移来完成的。 偏移量可以是固定的，或者可以在中断之前的时段内由发送功率确定。 平均来说，这种技术平均减少了重新建立功率控制所需的时间，从而解决了如果功率电平太低，中断后立即数据传输可能会被破坏的问题，或者如果 功率水平太高。

公开(公告)号：US07583636B2

公开(公告)日：2009-09-01

申请号：US10078980

申请日：2002-02-19

申请人： Timothy J. Moulsley ,  Matthew P. J. Baker ,  Bernard Hunt

发明人： Timothy J. Moulsley ,  Matthew P. J. Baker ,  Bernard Hunt

IPC分类号： H04L7/00

CPC分类号： H04W72/085 ,  H04L1/0045 ,  H04L1/1809

摘要： A radio communication system comprises a secondary station having a communication channel with a primary station for the transmission of data packets from the primary station to the secondary station. In response to receipt of a data packet, the secondary station transmits a combined acknowledgement and quality parameter signal (402) to the primary station. The signal (402) indicates whether the data packet was received correctly and the value of the quality parameter enables the primary station to select transmission parameters for further data transmissions. A range of formats for the combined signal are possible.In one embodiment the quality parameter is a site selection signal indicating a preferred subset of primary stations for subsequent data transmissions. In another embodiment the quality parameter relates to the quality of the radio link and enables the primary station to select suitable modulation and coding schemes and/or transmit power levels.