公开(公告)号：US06594243B1

公开(公告)日：2003-07-15

申请号：US09354220

申请日：1999-07-15

申请人： Ching Yao Huang ,  Joe Huang ,  I-Fong Antonio Wu ,  Xiao Cheng Wu ,  Bee Yun Yu

发明人： Ching Yao Huang ,  Joe Huang ,  I-Fong Antonio Wu ,  Xiao Cheng Wu ,  Bee Yun Yu

IPC分类号： H04Q700

CPC分类号： H04W36/0094 ,  H04W36/12 ,  H04W36/18

摘要： Soft handoffs in an IS-95 CDMA system or other wireless communication system are controlled using an enhanced set of soft handoff parameters which allow the system to adapt more readily to changing radio frequency (RF) conditions. In an illustrative embodiment, values for particular ones of the soft handoff parameters are selected in accordance with a set of rules, including rules such as, e.g., select the minimum value of add threshold among the members of an active set of pilots for a given mobile station; select the maximum value of drop threshold among the members of the active set; select the minimum value of drop threshold timer among the members of the active set; and select the minimum value of comparison threshold among the members of the active set. A quality measure is then determined for each of the members of the active set, based on one or more of the selected soft handoff parameter values and values of one or more additional parameters, e.g., add intercept, drop intercept and slope parameters, associated with those members. Particular values of the additional parameters are then selected based on the quality measures. The selected parameter values are then utilized in a soft handoff process, e.g., in a soft handoff process in which the given mobile station is directed to handoff from a primary base station to another base station of the system.

摘要翻译： 使用增强的一组软切换参数来控制IS-95 CDMA系统或其他无线通信系统中的软切换，这使得系统能够更容易地适应变化的射频（RF）条件。 在说明性实施例中，根据一组规则来选择软切换参数中的特定软值切换参数的值，包括诸如例如在给定的一组有效的飞行员组的成员中选择加法阈值的最小值的规则 移动台 选择活动集成员中下降阈值的最大值; 在活动集成员中选择丢弃阈值定时器的最小值; 并在活动集的成员中选择比较阈值的最小值。 然后，基于所选择的一个或多个软切换参数值和一个或多个附加参数的值（例如，添加截距，下降截距和斜率参数）来确定活动集的每个成员的质量度量 那些成员。 然后根据质量度量选择附加参数的特定值。 所选择的参数值然后在软切换过程中使用，例如在软切换过程中，其中给定移动台被指向从主基站切换到系统的另一个基站。

公开(公告)号：US06240287B1

公开(公告)日：2001-05-29

申请号：US09167157

申请日：1998-10-06

申请人： Terry Si-Fong Cheng ,  Ching Yao Huang ,  Joe Huang ,  Bee Yun Yu

发明人： Terry Si-Fong Cheng ,  Ching Yao Huang ,  Joe Huang ,  Bee Yun Yu

IPC分类号： H04Q730

CPC分类号： H04W48/06 ,  H04W24/10 ,  H04W36/00

摘要： Call processing overload at a base station of a cellular wireless network is controlled by monitoring a level of call processing at the base station, and reducing a present handoff rate for active users when the call processing level exceeds a first threshold less than a maximum call processing capacity. When the call processing level at the base station exceeds a second threshold greater than the first threshold, a present rate of call originations or terminations is reduced while further reducing the handoff rate.

摘要翻译： 在蜂窝无线网络的基站处的呼叫处理过载通过监视基站处的呼叫处理级别来控制，并且当呼叫处理级别超过小于最大呼叫处理的第一阈值时，降低活动用户的当前切换速率 容量。 当基站的呼叫处理级别超过大于第一阈值的第二阈值时，减少呼叫发起或终止的当前速率，同时进一步降低切换速率。

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：US06597908B1

公开(公告)日：2003-07-22

申请号：US09500673

申请日：2000-02-09

申请人： Bee Yun Yu

发明人： Bee Yun Yu

IPC分类号： H04Q720

CPC分类号： H04W24/02

摘要： A method and system for monitoring the traffic carrier performance of a CDMA carrier in a mobile communication system are provided. The method and system assign a preferred traffic carrier to each mobile station. During a drive-test, the preferred traffic carrier is assigned to the respective mobile station either originating or receiving a call. In the event of a dropped call, the system attempts to re-establish the call on the preferred traffic carrier to provide continuous monitoring on the same traffic carrier when the call is retried. If the preferred traffic carrier is not available when the BSC or base station assigns a traffic carrier, an alternate traffic carrier can be assigned at the call setup. After the call setup procedure is completed, a handoff procedure is initiated to transfer the call from the alternate traffic carrier to the preferred traffic carrier after a predetermined time if the preferred traffic carrier is available.

摘要翻译： 提供了一种用于监视移动通信系统中的CDMA载波的业务载波性能的方法和系统。 该方法和系统为每个移动台分配优选业务载波。 在驱动测试期间，优先业务载波被分配给相应的移动台，发起或接收呼叫。 在掉话的情况下，系统尝试在首选业务载波上重新建立呼叫，以便在重试呼叫时，在同一个业务载波上提供连续监控。 如果BSC或基站分配业务载波时首选业务载波不可用，则可以在呼叫建立时分配备用业务载波。 在呼叫建立过程完成之后，如果优选业务载波可用，则启动切换过程，以在预定时间之后将呼叫从备用业务载波传送到优选业务载波。

公开(公告)号：US06349205B1

公开(公告)日：2002-02-19

申请号：US09292238

申请日：1999-04-15

申请人： I-Ning Hsu Fang ,  Peng-Sheng Ku ,  Jason Cheng Ting ,  Bee Yun Yu

发明人： I-Ning Hsu Fang ,  Peng-Sheng Ku ,  Jason Cheng Ting ,  Bee Yun Yu

IPC分类号： H04M342

CPC分类号： H04W8/265

摘要： A subscriber conversion system determines at least one code for an existing subscriber of a first wireless communications system to be converted to a second wireless communications system. When the existing subscriber obtains a wireless unit to be used in the second wireless communications system, the conversion system uses the at least one code provided to the existing subscriber to link existing subscriber information from the first wireless communications system to information associated with wireless unit for the second communications system, thereby improving the efficiency of the conversion process. For example, if a service provider wishes to convert from GSM to CDMA, the service provider can provide a secret code and an identification number, such as a directory number (DN), as the codes to the existing GSM subscriber. The subscriber obtains a CDMA wireless unit and commences an activation process to activate the CDMA wireless unit. As part of the activation process, the subscriber provides the secret code and the identification number to the conversion system. The conversion system determines if the secret code and the identification number correspond to the secret code and identification number provided to an existing GSM subscriber. If so, information which is characteristic of the CDMA wireless unit, such as the ESN, DN and/or IMSI, is associated with at least a portion of existing GSM subscriber information, such as billing information and/or features or services. As such, the conversion system uses existing subscriber information to reduce the time required to convert the existing subscriber to the wireless communications system based on the second radio standard.

摘要翻译： 订户转换系统确定要转换为第二无线通信系统的第一无线通信系统的现有订户的至少一个代码。 当现有用户获得要在第二无线通信系统中使用的无线单元时，转换系统使用提供给现有用户的至少一个代码将来自第一无线通信系统的现有用户信息链接到与无线单元相关联的信息， 第二通信系统，从而提高转换过程的效率。 例如，如果服务提供商希望从GSM转换为CDMA，则服务提供商可以向现有的GSM用户提供密码和诸如目录号码（DN）的识别号码作为代码。 用户获得CDMA无线单元并开始激活处理以激活CDMA无线单元。 作为激活过程的一部分，用户向转换系统提供密码和识别号码。 转换系统确定秘密码和识别码是否对应于提供给现有GSM用户的密码和识别码。 如果是，则诸如ESN，DN和/或IMSI之类的CDMA无线单元的特征的信息与诸如计费信息和/或特征或服务的现有GSM订户信息的至少一部分相关联。 因此，转换系统使用现有的用户信息来减少基于第二无线电标准将现有用户转换到无线通信系统所需的时间。