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公开(公告)号:US07299402B2
公开(公告)日:2007-11-20
申请号:US10779518
申请日:2004-02-13
IPC分类号: H03M13/09 , H04B7/0005 , H04L1/16
CPC分类号: H04W52/267 , H04L1/0002 , H04L1/0025 , H04L1/0026 , H04L1/0039 , H04L1/0081 , H04L1/08 , H04L1/20 , H04W52/146 , H04W52/16 , H04W52/20 , H04W52/325
摘要: A method of reverse link power control for a reverse packet data channel in a wireless communication system allows a mobile station to autonomously change its data transmission rate. The mobile station transmits packet data over a reverse packet data channel having a data rate variant transmit power level that varies based on a transmit data rate on the packet data channel. The mobile station further transmits control signals over a reverse control channel associated with the reverse packet data channel. The transmit power level of the reverse control channel is such that the transmit power level does not vary with the transmit data rate on the packet data channel. The radio base station measures the strength of the received signals on the reverse control channel, compares the measured strength to a power control set point, and generates a power control signal responsive to the comparison of the control signal to the power control set point.
摘要翻译: 无线通信系统中的反向分组数据信道的反向链路功率控制方法允许移动台自主地改变其数据传输速率。 该移动站通过具有基于分组数据信道上的发送数据速率而变化的数据速率变化发射功率电平的反向分组数据信道来发送分组数据。 移动台还通过与反向分组数据信道相关联的反向控制信道来发送控制信号。 反向控制信道的发射功率电平使得发射功率电平不随分组数据信道上的发送数据速率而变化。 无线电基站测量反向控制信道上的接收信号的强度,将测得的强度与功率控制设定点进行比较,并根据控制信号与功率控制设定点的比较产生功率控制信号。
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公开(公告)号:US08054775B2
公开(公告)日:2011-11-08
申请号:US11867368
申请日:2007-10-04
IPC分类号: H04B7/185
CPC分类号: H04W52/267 , H04L1/0002 , H04L1/0025 , H04L1/0026 , H04L1/0039 , H04L1/0081 , H04L1/08 , H04L1/20 , H04W52/146 , H04W52/16 , H04W52/20 , H04W52/325
摘要: A method of reverse link power control for a reverse packet data channel in a wireless communication system allows a mobile station to autonomously change its data transmission rate. The mobile station transmits packet data over a reverse packet data channel having a data rate variant transmit power level that varies based on a transmit data rate on the packet data channel. The mobile station further transmits control signals over a reverse control channel associated with the reverse packet data channel. The transmit power level of the reverse control channel is such that the transmit power level does not vary with the transmit data rate on the packet data channel. The radio base station measures the strength of the received signals on the reverse control channel, compares the measured strength to a power control set point, and generates a power control signal responsive to the comparison of the control signal to the power control set point.
摘要翻译: 无线通信系统中的反向分组数据信道的反向链路功率控制方法允许移动台自主地改变其数据传输速率。 该移动站通过具有基于分组数据信道上的发送数据速率而变化的数据速率变化发射功率电平的反向分组数据信道来发送分组数据。 移动台还通过与反向分组数据信道相关联的反向控制信道来发送控制信号。 反向控制信道的发射功率电平使得发射功率电平不随分组数据信道上的发送数据速率而变化。 无线电基站测量反向控制信道上的接收信号的强度,将测得的强度与功率控制设定点进行比较,并根据控制信号与功率控制设定点的比较产生功率控制信号。
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公开(公告)号:US07406077B2
公开(公告)日:2008-07-29
申请号:US10755104
申请日:2004-01-09
申请人: Srinivasan Balasubramanian , David Reeves Comstock , Long L. Duan , Ralph Gholmieh , Thawatt Gopal , Patrick Ahamad Hosein , Seong-Jun Oh , Anthony C. K. Soong , Shiau-He Shawn Tsai , Rath Vannithamby , Jonas Wiorek , Hsein Woo , Tao Wu , Young C. Yoon
发明人: Srinivasan Balasubramanian , David Reeves Comstock , Long L. Duan , Ralph Gholmieh , Thawatt Gopal , Patrick Ahamad Hosein , Seong-Jun Oh , Anthony C. K. Soong , Shiau-He Shawn Tsai , Rath Vannithamby , Jonas Wiorek , Hsein Woo , Tao Wu , Young C. Yoon
摘要: An apparatus and method provide MAC logic enabling the use of two or more reverse link rate controls at the same time in one or more sectors of a radio base station. That enables the base station to control reverse link loading via reverse link rate control, while assigning mobile stations to the type of reverse link rate control best suited to their needs. For example, the base station MAC logic may implement both a common rate controller that generates per-sector rate control commands, and a dedicated rate controller that generates per-user rate control commands and assign mobile stations having relatively lax reverse link service needs to the common rate controller, while assigning mobile stations having more demanding reverse link service requirements to the dedicated rate control. More than two rate controls can be implemented, and exemplary choices include per-user, per-sector, per-group, and scheduled rate control in any combination.
摘要翻译: 一种装置和方法提供MAC逻辑,使得能够在无线电基站的一个或多个扇区中同时使用两个或更多个反向链路速率控制。 这使得基站能够通过反向链路速率控制来控制反向链路负载,同时将移动台分配给最适合其需要的反向链路速率控制的类型。 例如,基站MAC逻辑可以实现产生每扇区速率控制命令的公共速率控制器和专用速率控制器,该专用速率控制器生成每用户速率控制命令,并将具有相对较轻的反向链路服务需求的移动台分配给 通用速率控制器,同时将具有更苛刻的反向链路服务要求的移动站分配给专用速率控制。 可以实现多于两个速率控制,并且示例性选择包括任何组合的每用户,每扇区,每组和调度速率控制。
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公开(公告)号:US07738901B2
公开(公告)日:2010-06-15
申请号:US10788568
申请日:2004-02-27
IPC分类号: H04B7/00
CPC分类号: H04W28/18 , H04W52/16 , H04W52/325 , H04W52/36 , H04W52/40
摘要: A communication transceiver transmits a power-controlled first signal responsive to received power control commands and transmits one or more additional signals at variable power gains relative to the transmit power of the first signal based on reception quality feedback received for the additional signals. Thus, a mobile station may transmit a traffic channel at a variable power gain relative to its pilot signal power and vary that gain responsive to reception quality feedback received by it for the traffic signal. Of course, the mobile station may float more than one traffic channel using variable gains and may use different variable gains for each one. Further, the mobile station may float one or more non-pilot channels relative to the pilot or relative to another channel, while transmitting one or more fixed gain channels. Similar variable power gain may be employed at network base stations for forward link signals.
摘要翻译: 通信收发机响应于接收到的功率控制命令发送功率受控的第一信号,并基于为附加信号接收的接收质量反馈,以相对于第一信号的发射功率的可变功率增益发射一个或多个附加信号。 因此,移动台可以以相对于其导频信号功率的可变功率增益来发送业务信道,并响应于其为业务信号收到的接收质量反馈来改变该增益。 当然,移动台可以使用可变增益浮动多于一个业务信道,并且可以为每一个使用不同的可变增益。 此外,移动台可以在发送一个或多个固定增益信道的同时相对于导频或相对于另一个信道漂浮一个或多个非导频信道。 在网络基站可以采用类似的可变功率增益用于前向链路信号。
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公开(公告)号:US07469146B2
公开(公告)日:2008-12-23
申请号:US10889554
申请日:2004-07-12
IPC分类号: H04Q7/20
CPC分类号: H04W28/18 , H04L1/0625 , H04W52/16 , H04W52/325 , H04W52/36 , H04W52/40
摘要: A wireless communication network receives packet data transmissions from a mobile station, tracks the occurrence of retransmission requests sent to the mobile station responsive thereto, and modifies the radio link assignments for the mobile station based at least in part on said tracking. For example, a base station controller may be configured to manage the active set of a mobile station based on the number and/or frequency of NACK messages sent by the radio base stations in the mobile station's active set(s) responsive to packet data transmissions from the mobile station. The ACK/NACK response of a radio base station to mobile station transmissions may be used to detect link imbalance, identify poor reverse link channels, etc. The base station controller can add or change radio links based on the ACK/NACK response to improve reverse link performance, trigger voice call handoff, correct link imbalance, etc.
摘要翻译: 无线通信网络从移动站接收分组数据传输,响应于此而跟踪发送到移动站的重传请求的发生,并且至少部分地基于所述跟踪修改移动台的无线电链路分配。 例如,基站控制器可以被配置为基于移动台的活动组中的无线电基站响应于分组数据传输发送的NACK消息的数量和/或频率来管理移动台的活动集合 从移动台。 无线电基站对移动台传输的ACK / NACK响应可用于检测链路不平衡,识别差的反向链路信道等。基站控制器可以基于ACK / NACK响应来添加或改变无线电链路以改善反向 链路性能,触发语音呼叫切换,链路不平衡等。
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公开(公告)号:US07522919B2
公开(公告)日:2009-04-21
申请号:US10789587
申请日:2004-02-27
申请人: Young C. Yoon , Wanshi Chen , Hsien Woo , Anthony C. K. Soong , Srinivasan Balasubramanian , Thawatt Gopal , Long Duan , Shiau-He Shawn Tsai
发明人: Young C. Yoon , Wanshi Chen , Hsien Woo , Anthony C. K. Soong , Srinivasan Balasubramanian , Thawatt Gopal , Long Duan , Shiau-He Shawn Tsai
IPC分类号: H04M3/42
CPC分类号: H04W24/10 , H04B17/309 , H04W24/00 , H04W52/08 , H04W52/12 , H04W52/146 , H04W52/24 , H04W52/343 , H04W52/44
摘要: Noise is measured at one or more base stations in a mobile communication system during periodic silence periods. A periodic silence period is defined for at least one carrier that is independent of reverse link channel frame boundaries. The radio base stations transmits silence parameters defining the periodic silence period to mobile stations, which stop transmitting during the periodic silence periods. A time reference is provided to the mobile stations to synchronize the silence periods for all mobile stations.
摘要翻译: 在周期性沉默期间,在移动通信系统中的一个或多个基站处测量噪声。 对于独立于反向链路信道帧边界的至少一个载波,定义了周期性的静默周期。 无线电基站向移动台发送定义周期性静默周期的静音参数,移动台在周期性静默期间停止发射。 向移动台提供时间参考以同步所有移动站的静默时段。
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7.
公开(公告)号:US07346314B2
公开(公告)日:2008-03-18
申请号:US10768560
申请日:2004-01-30
IPC分类号: H04B1/00
CPC分类号: H04W52/322 , H04W52/12 , H04W52/16 , H04W52/325 , H04W52/36
摘要: A method and apparatus to provide a deterministic power control mechanism for the transmission of mobile station power control commands based on transmitting non-power control commands for which mobile stations exhibit deterministic, observable responses at related transmit powers, e.g., at the same power. For example, a wireless network base station may adjust the target used for sending power control commands to a given mobile station by observing whether that mobile station correctly responds to rate control or retransmit control commands sent at the same transmit power. The mobile station's response (or non-response) to such non-power control commands is readily observable and can be taken as an indication of whether the power target is sufficient for current radio conditions. Although not so limited, this approach may be particularly beneficial where non-power control commands are sent along with the power commands on a sub-channel of a common power control channel.
摘要翻译: 一种提供确定性功率控制机制的方法和装置,用于基于传输非功率控制命令来发送移动台功率控制命令,所述非功率控制命令用于以相同的功率在相关的发射功率下显示出确定性的,可观测的响应。 例如,无线网络基站可以通过观察该移动台是否正确地响应速率控制或以相同发射功率发送的重发控制命令来调整用于向给定移动台发送功率控制命令的目标。 移动台对这种非功率控制命令的响应(或不响应)是容易观察到的,并且可以被视为当前无线电条件下功率目标是否足够的指示。 尽管没有这样的限制,但是当非功率控制命令与公共功率控制信道的子信道上的功率命令一起发送时,该方法可能是特别有利的。
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公开(公告)号:US07519019B2
公开(公告)日:2009-04-14
申请号:US10800791
申请日:2004-03-15
申请人: Young C. Yoon , Srinivasan Balasubramanian , David Reeves Comstock , Long L. Duan , Ralph Gholmieh , Thawatt Gopal , Patrick A. Hosein , Anthony C. K. Soong , Shiau-He Shawn Tsai , Rath Vannithamby , Jonas Wiorek
发明人: Young C. Yoon , Srinivasan Balasubramanian , David Reeves Comstock , Long L. Duan , Ralph Gholmieh , Thawatt Gopal , Patrick A. Hosein , Anthony C. K. Soong , Shiau-He Shawn Tsai , Rath Vannithamby , Jonas Wiorek
IPC分类号: H04Q7/00
摘要: A radio base station performs reverse link rate control in a wireless communication network by “stealing” bits on a forward common power control channel. The forward common power control channel is divided into a plurality of frames, with each frame including a plurality of power control groups and each power control group including a plurality of power control slots. The radio base station may dynamically select power control slots depending on user demand to be used for reverse link rate control.
摘要翻译: 无线基站通过在正向公共功率控制信道上“窃取”比特来在无线通信网络中进行反向链路速率控制。 前向公共功率控制信道被分成多个帧,每个帧包括多个功率控制组,并且每个功率控制组包括多个功率控制时隙。 无线电基站可以根据用于用于反向链路速率控制的用户需求来动态地选择功率控制时隙。
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公开(公告)号:US07466666B2
公开(公告)日:2008-12-16
申请号:US10769010
申请日:2004-01-30
CPC分类号: H04L1/1692
摘要: A base station receives data frames from a mobile station and selectively gates a physical layer radio channel to provide ACK and NACK indications responsive to the receipt of the data frames from the mobile station. The physical layer radio channel is gated on to provide one of an ACK and a NACK indication to the mobile station, and is gated off to provide the other one of the ACK and NACK indications to the mobile station.
摘要翻译: 基站从移动站接收数据帧,并且有选择地对物理层无线电信道进行门控,以响应于从移动站接收到的数据帧来提供ACK和NACK指示。 物理层无线电信道被选通以向移动台提供ACK和NACK指示之一,并被选通以向移动台提供另一个ACK和NACK指示。
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公开(公告)号:US07313167B2
公开(公告)日:2007-12-25
申请号:US10260650
申请日:2002-09-30
申请人: Young C. Yoon , Shiau-He Shawn Tsai
发明人: Young C. Yoon , Shiau-He Shawn Tsai
CPC分类号: H04B1/7097 , H04B17/336 , H04L1/206 , H04W52/24
摘要: An improved approach to noise estimation permits, for example, tighter closed-loop power control in a wireless communication network with attendant improvements in transmit power efficiency and network capacity. In an exemplary embodiment, the received signal-to-noise ratio (SNR) of a data signal is estimated based on noise samples obtained from one or more other signals received in association with the data signal. In general, these associated signals are characterized by the receiver's ability to extract like valued samples from them, such that pairs of these like valued signal samples may be subtracted, thereby canceling their deterministic signal components and leaving only difference values representative of the non-deterministic noise components of the signal samples. Obtaining difference values from more than one associated signal increases the sample size of difference values used in noise estimation, thereby improving the statistical basis for noise estimation and, therefore, the accuracy of SNR estimation.
摘要翻译: 改进的噪声估计方法允许例如在无线通信网络中更紧密的闭环功率控制,同时提高发射功率效率和网络容量。 在示例性实施例中,基于从与数据信号相关联接收的一个或多个其它信号获得的噪声样本来估计数据信号的接收信噪比(SNR)。 通常,这些相关联的信号的特征在于接收机从其中提取类似值样本的能力,使得可以减去这些像值信号样本的对,从而消除其确定性信号分量,并且仅留下代表非确定性的差值 信号样本的噪声分量。 从多个相关联信号中获取差值增加了噪声估计中使用的差值的采样大小,从而改善了噪声估计的统计基础,从而提高了SNR估计的准确性。
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