公开(公告)号：US06438380B1

公开(公告)日：2002-08-20

申请号：US08808693

申请日：1997-02-28

申请人： Qi Bi ,  Wen-Yi Kuo ,  Sirin Tekinay

发明人： Qi Bi ,  Wen-Yi Kuo ,  Sirin Tekinay

IPC分类号： H04Q720

CPC分类号： H04W64/00 ,  G01S5/06

摘要： The present invention is a more accurate system for estimating the location of a mobile-telephone without significantly increasing the interference level for other mobile-telephones in the same or neighboring cells. In one embodiment, the present invention uses a plurality of location terminals deployed throughout a cell to increase the chances of detecting line-of-sight signals and the signal-to-noise ratio at the location terminals. In this embodiment, a wireless communication network transmits receive information to the plurality of location terminals instructing each of the location terminals to receive a signal from a particular mobile-telephone. Specifically, the location terminal is instructed to monitor a specific communication channel during a specific time interval. Upon receiving the signal, each of the location terminals produces detection information that is used by a location processor to estimate a location for the mobile-telephone, wherein the detection information includes times-of-arrival of the signal at each of the location terminals. In one embodiment, the location processor uses well-known location techniques, such as time difference of arrival, ranging, etc., to estimate the location for the mobile-telephone.

摘要翻译： 本发明是用于估计移动电话的位置而不显着增加相同或相邻小区中的其他移动电话的干扰水平的更准确的系统。 在一个实施例中，本发明使用部署在整个小区中的多个位置终端来增加在位置终端处检测视线信号和信噪比的机会。 在该实施例中，无线通信网络向多个位置终端发送接收信息，指示每个位置终端接收来自特定移动电话的信号。 特别地，指示定位终端在特定时间间隔期间监视特定的通信信道。 在接收到信号时，每个位置终端产生由位置处理器用于估计移动电话的位置的检测信息，其中检测信息包括在每个位置终端处的信号的到达时间。 在一个实施例中，位置处理器使用公知的定位技术，例如到达时间差，测距等来估计移动电话的位置。

公开(公告)号：US6163696A

公开(公告)日：2000-12-19

申请号：US775329

申请日：1996-12-31

申请人： Qi Bi ,  Wen-Yi Kuo

发明人： Qi Bi ,  Wen-Yi Kuo

IPC分类号： H04W64/00 ,  H04Q7/20

CPC分类号： H04W64/00

摘要： Methods and apparatus for estimating mobile station location in a wireless communication system. At initiation of a call or a page response, a mobile station of the system sends an access request signal to a primary base station. The primary base station responds with an access acknowledgment which may be intentionally delayed such that the mobile station increases its transmit power level. The primary base station then transmits a channel assignment message to the mobile station. The mobile station responds by transmitting a location signal in the form of a known user-specific traffic preamble at the higher transmit power level. The primary base station intentionally delays sending an acknowledgment of the preamble, such that the mobile station transmits the preamble for a longer period of time than it would otherwise. This additional transmission time allows the preamble to be detected accurately in the primary base station as well as in a number of other surrounding base stations in a manner suitable for generating path delay measurements. A primary location processor associated with the primary base station uses the path delay measurements from the primary and surrounding base stations to generate an estimate of mobile location. The mobile location estimation may be provided during an on-going call by the primary base station sending a fake handoff message to the mobile station directing it to handoff to the same base station and traffic channel but with a different power level and preamble length, or by the primary base station sending a predetermined location probe message directing the mobile station to transmit the traffic preamble with a desired power level and preamble length.

摘要翻译： 用于估计无线通信系统中的移动台位置的方法和装置。 在开始呼叫或寻呼响应时，系统的移动台向主基站发送接入请求信号。 主基站用可能有意延迟的接入确认进行响应，使得移动台增加其发射功率电平。 然后，主基站向移动台发送信道分配消息。 移动台通过以较高发射功率电平以已知的用户特定业务前导码的形式发送位置信号进行响应。 主基站有意地延迟发送对前同步码的确认，使得移动站发送比其它方式更长的时间段。 该附加传输时间允许在适合于生成路径延迟测量的方式中，在主基站以及多个其它周围基站中准确地检测前导码。 与主基站相关联的主位置处理器使用来自主基站和周围基站的路径延迟测量来生成移动位置的估计。 移动位置估计可以在主基站正在进行的呼叫期间提供，该主基站向移动台发送假切换消息，指示它切换到相同的基站和业务信道，但具有不同的功率电平和前导码长度，或者 由主基站发送指示移动台以期望功率电平和前导码长度发送业务前同步码的预定位置探测消息。

公开(公告)号：US06785550B1

公开(公告)日：2004-08-31

申请号：US09724238

申请日：2000-11-28

申请人： Qi Bi ,  Wen-Yi Kuo

发明人： Qi Bi ,  Wen-Yi Kuo

IPC分类号： H04Q720

CPC分类号： H04W64/00

摘要： Methods and apparatus for estimating mobile station location in a wireless communication system. At initiation of a call or a page response, a mobile station of the system sends an access request signal to a primary base station. The primary base station responds with an access acknowledgment which may be intentionally delayed such that the mo bile station increases its transmit power level. The primary base station then transmits a channel assignment message to the mobile station. The mobile station responds by transmitting a location signal in the form of a known user-specific traffic preamble at the higher transmit power level. The primary base station intentionally delays sending an acknowledgment of the preamble, such that the mobile station transmits the preamble for a longer period of time than it would otherwise. This additional transmission time allows the preamble to be detected accurately in the primary base station as well as in a number of other surrounding base stations in a manner suitable for generating path delay measurements. A primary location processor associated with the primary base station uses the path delay measurements from the primary and surrounding base stations to generate an estimate of mobile location. The mobile location estimation may be provided during an on-going call by the primary base station sending a fake handoff message to the mobile station directing it to handoff to the same base station and traffic channel but with a different power level and preamble length, or by the primary base station sending a predetermined location probe message directing the mobile station to transmit the traffic preamble with a desired power level and preamble length.

摘要翻译： 用于估计无线通信系统中的移动台位置的方法和装置。 在开始呼叫或寻呼响应时，系统的移动台向主基站发送接入请求信号。 主基站通过访问确认进行响应，该访问确认可被有意地延迟，使得恶意站增加其发射功率电平。 然后，主基站向移动台发送信道分配消息。 移动台通过以较高发射功率电平以已知的用户特定业务前导码的形式发送位置信号进行响应。 主基站有意地延迟发送对前同步码的确认，使得移动站发送比其它方式更长的时间段。 该附加传输时间允许在适合于生成路径延迟测量的方式中，在主基站以及多个其它周围基站中准确地检测前导码。 与主基站相关联的主位置处理器使用来自主基站和周围基站的路径延迟测量来生成移动位置的估计。 移动位置估计可以在主基站正在进行的呼叫期间提供，该主基站向移动台发送假切换消息，指示它切换到相同的基站和业务信道，但具有不同的功率电平和前导码长度，或者 由主基站发送指示移动台以期望功率电平和前导码长度发送业务前同步码的预定位置探测消息。

公开(公告)号：US06944466B2

公开(公告)日：2005-09-13

申请号：US10864001

申请日：2004-06-09

申请人： Qi Bi ,  Wen-Yi Kuo

发明人： Qi Bi ,  Wen-Yi Kuo

IPC分类号： H04W64/00 ,  H04Q7/20

CPC分类号： H04W64/00

摘要： Methods and apparatus for estimating mobile station location in a wireless communication system. At initiation of a call or a page response, a mobile station of the system sends an access request signal to a primary base station. The primary base station responds with an access acknowledgment which may be intentionally delayed such that the mobile station increases its transmit power level. The primary base station then transmits a channel assignment message to the mobile station. The mobile station responds by transmitting a location signal in the form of a known user-specific traffic preamble at the higher transmit power level. The primary base station intentionally delays sending an acknowledgment of the preamble, such that the mobile station transmits the preamble for a longer period of time than it would otherwise. This additional transmission time allows the preamble to be detected accurately in the primary base station as well as in a number of other surrounding base stations in a manner suitable for generating path delay measurements. A primary location processor associated with the primary base station uses the path delay measurements from the primary and surrounding base stations to generate an estimate of mobile location. The mobile location estimation may be provided during an on-going call by the primary base station sending a fake handoff message to the mobile station directing it to handoff to the same base station and traffic channel but with a different power level and preamble length, or by the primary base station sending a predetermined location probe message directing the mobile station to transmit the traffic preamble with a desired power level and preamble length.

摘要翻译： 用于估计无线通信系统中的移动台位置的方法和装置。 在开始呼叫或寻呼响应时，系统的移动台向主基站发送接入请求信号。 主基站用可能有意延迟的接入确认进行响应，使得移动台增加其发射功率电平。 然后，主基站向移动台发送信道分配消息。 移动台通过以较高发射功率电平以已知的用户特定业务前导码的形式发送位置信号进行响应。 主基站有意地延迟发送对前同步码的确认，使得移动站发送比其它方式更长的时间段。 该附加传输时间允许在适合于生成路径延迟测量的方式中，在主基站以及多个其它周围基站中准确地检测前导码。 与主基站相关联的主位置处理器使用来自主基站和周围基站的路径延迟测量来生成移动位置的估计。 移动位置估计可以在主基站正在进行的呼叫期间提供，该主基站向移动台发送假切换消息，指示它切换到相同的基站和业务信道，但具有不同的功率电平和前导码长度，或者 由主基站发送指示移动台以期望功率电平和前导码长度发送业务前同步码的预定位置探测消息。

公开(公告)号：US5970414A

公开(公告)日：1999-10-19

申请号：US866901

申请日：1997-05-30

申请人： Qi Bi ,  Wen-Yi Kuo ,  Sirin Tekinay

发明人： Qi Bi ,  Wen-Yi Kuo ,  Sirin Tekinay

IPC分类号： G01S5/00 ,  G01S5/14 ,  G01S19/25 ,  H04W64/00 ,  H04B1/06

CPC分类号： H04W64/00 ,  G01S5/0036 ,  G01S5/14 ,  G01S2205/008 ,  Y02B60/50

摘要： The present invention is a method for accurately estimating a location of a mobile-telephone using forward link power control. In one embodiment, the present invention comprises the steps of transmitting first, second and third signals from first, second and third base stations during first, second and third time intervals; decreasing the power level of the first base station during at least portions of the second and third time intervals; receiving a mobile-telephone signal having receive information indicating times-of-arrivals of the first, second and third signals at the mobile-telephone; and estimating a location of the mobile-telephone using the receive information and known locations of the first, second and third base stations. Advantageously, this embodiment of the present invention actually decreases the interference level contribution of the first base station, and requires little change to the network side of existing wireless communication standards and no change to the mobile-telephone side.

摘要翻译： 本发明是一种使用前向链路功率控制精确地估计移动电话的位置的方法。 在一个实施例中，本发明包括在第一，第二和第三时间间隔期间从第一，第二和第三基站发送第一，第二和第三信号的步骤; 在第二和第三时间间隔的至少部分期间，降低第一基站的功率电平; 接收具有指示移动电话上的第一，第二和第三信号的到达时间的接收信息的移动电话信号; 以及使用接收信息和第一，第二和第三基站的已知位置估计移动电话的位置。 有利地，本发明的该实施例实际上降低了第一基站的干扰等级贡献，并且对现有无线通信标准的网络侧几乎没有变化，并且对移动电话侧没有变化。

公开(公告)号：US07006485B2

公开(公告)日：2006-02-28

申请号：US09990468

申请日：2001-11-21

申请人： Qi Bi ,  Wen-Yi Kuo ,  Martin Howard Meyers ,  Charles Albert Sanders ,  Carl Francis Weaver

发明人： Qi Bi ,  Wen-Yi Kuo ,  Martin Howard Meyers ,  Charles Albert Sanders ,  Carl Francis Weaver

IPC分类号： H04B7/216

CPC分类号： H04W16/00 ,  H04W16/24 ,  H04W36/18

摘要： A method for reducing multiple dominant pilots in a CDMA transmission system comprises linking a transceiver element with a nearby base station for transporting signals between the transceiver element and the nearby base station. Transmitting from the transceiver element forward link signals of a nearby sector associated with the nearby base station. An apparatus is also described.

公开(公告)号：US08730923B2

公开(公告)日：2014-05-20

申请号：US10459010

申请日：2003-06-11

申请人： Daniel Matthew Andrews ,  Qi Bi ,  Frances Jiang ,  Aleksandr Stolyar ,  Yang Yang

发明人： Daniel Matthew Andrews ,  Qi Bi ,  Frances Jiang ,  Aleksandr Stolyar ,  Yang Yang

IPC分类号： H04J3/00

CPC分类号： H04W28/18 ,  H04L47/10 ,  H04L47/11 ,  H04L47/12 ,  H04L47/14 ,  H04L47/20 ,  H04L47/225 ,  H04L47/245 ,  H04L47/27 ,  H04L47/70 ,  H04L47/762 ,  H04L47/805 ,  H04L47/822 ,  H04L47/824 ,  H04W24/00 ,  H04W28/24 ,  H04W48/06 ,  H04W72/0446 ,  H04W88/08

摘要： A resource allocation algorithm identifies a resource hogger in a wireless communication system data sharing arrangement and control shared resource overuse by the resource hogger. In one embodiment, the base station for a given sector in the system tracks the time-slot usage of each active user in the sector. If the usage for any user reaches a predetermined hogger threshold, normal target QoS enforcement is suspended for that user to allow more time slots to be allocated to the other, non-hogger users. When the resource hogger user's usage falls below the threshold, target QoS enforcement is returned to that user. Temporarily suspending target QoS enforcement for resource hoggers and allocating the remaining resources to other users prevents resource hoggers from deteriorating performance of the entire system.

摘要翻译： 资源分配算法识别无线通信系统数据共享安排中的资源蜂房，并控制资源蜂房过度使用的共享资源。 在一个实施例中，系统中给定扇区的基站跟踪扇区中每个活动用户的时隙使用。 如果任何用户的使用达到预定的蜂王阈值，则为该用户暂停正常的目标QoS执行，以允许将更多的时隙分配给其他非虎头用户。 当资源用户的用户使用率低于阈值时，将向该用户返回目标QoS强制。 临时暂停资源跳转器的目标QoS执行，并将其余资源分配给其他用户可以防止资源跳转器恶化整个系统的性能。

公开(公告)号：US08081686B2

公开(公告)日：2011-12-20

申请号：US11434149

申请日：2006-05-16

申请人： Qi Bi ,  Yang Yang ,  Qinqing Zhang

发明人： Qi Bi ,  Yang Yang ,  Qinqing Zhang

IPC分类号： H04L27/28 ,  H04B1/00 ,  H04B7/216 ,  H04J11/00 ,  H04J3/04

CPC分类号： H04J13/0077 ,  H04B2201/70703 ,  H04J13/20

摘要： At least a portion of a total spectrum bandwidth of a wireless system may be allocated to each of a plurality of users by assigning at least one unique spreading code to each of the plurality of users. At least two of the plurality of users may have different spectrum capabilities and may transmit simultaneously. Each of the assigned spreading codes may have a different code length. The number and/or the code length of the spreading codes assigned to each user may be indicative of a portion of the total spectrum bandwidth allocated to each user.

摘要翻译： 通过向多个用户中的每一个分配至少一个唯一的扩展码，可以将无线系统的总频谱带宽的至少一部分分配给多个用户中的每一个。 多个用户中的至少两个可以具有不同的频谱能力并且可以同时传输。 每个分配的扩展码可以具有不同的码长度。 分配给每个用户的扩展码的数量和/或码长可以指示分配给每个用户的总频谱带宽的一部分。

公开(公告)号：US20110134881A1

公开(公告)日：2011-06-09

申请号：US12654028

申请日：2009-12-08

申请人： Susan Wu Sanders ,  Qi Bi ,  Liwa Wang ,  Devesh Patel ,  Bee Yun Yu ,  Yang Yang

发明人： Susan Wu Sanders ,  Qi Bi ,  Liwa Wang ,  Devesh Patel ,  Bee Yun Yu ,  Yang Yang

IPC分类号： H04W36/00

CPC分类号： H04W36/30

摘要： In one embodiment a first comparison result is determined based on a link quality metric and a first threshold value. Based on the first comparison result, a second base station is selected, and the mobile device is instructed to switch from communicating wirelessly with the first base station to communicating wirelessly with the second base station

摘要翻译： 在一个实施例中，基于链路质量度量和第一阈值来确定第一比较结果。 基于第一比较结果，选择第二基站，并且指示移动设备从与第一基站无线通信切换到与第二基站无线通信

公开(公告)号：US07596089B2

公开(公告)日：2009-09-29

申请号：US10160125

申请日：2002-06-04

申请人： Qi Bi ,  Ching Yao Huang ,  Pi-Chun Chen ,  Patrick Li ,  Stanley Vitebsky

发明人： Qi Bi ,  Ching Yao Huang ,  Pi-Chun Chen ,  Patrick Li ,  Stanley Vitebsky

IPC分类号： G01R31/08

CPC分类号： H04W72/1247 ,  H04L47/11 ,  H04L47/14 ,  H04L47/2433 ,  H04L47/29 ,  H04L47/50 ,  H04L47/6235 ,  H04L47/6265 ,  H04W28/14

摘要： In the method, an average user throughout over all active users is computed, and each user's user perceived throughput is compared against the computed average throughout. Based on the comparison, the scheduling of the plurality of users is prioritized. In an embodiment, a priority adjustment factor is applied to each user to prioritize the scheduling of users to receive a data transmission. The priority adjustment factor is determined based in part on an update function. The update function is proportional to a calculated difference between each user's user perceived throughput and the average user throughput. Based on the sign of the update function, the priority adjustment factor is either incremented or decremented, and hence, prioritization of users is ordered. The output of the scheduler is user identifying information that informs the base station to transmit data in a current time slot to the identified user determined as the highest priority user by the scheduling method.

摘要翻译： 在该方法中，计算所有活跃用户之间的平均用户，并将每个用户的用户感知吞吐量与所计算的平均值进行比较。 基于比较，优先考虑多个用户的调度。 在一个实施例中，优先级调整因子被应用于每个用户以优先化用户的调度以接收数据传输。 部分基于更新功能来确定优先级调整因子。 更新功能与每个用户的用户感知吞吐量和平均用户吞吐量之间的计算差异成比例。 基于更新功能的符号，优先级调整因子被递增或递减，因此排序用户的优先级。 调度器的输出是用户识别信息，通知基站通过调度方法将当前时隙中的数据发送到被确定为最高优先级用户的所识别用户。