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1. 发明授权

US06970447B2 Multi-carrier method for providing access to a wireless communication system 有权
标题翻译：用于提供对无线通信系统的访问的多载波方法
公开(公告)号：US06970447B2
公开(公告)日：2005-11-29
申请号：US10086507
申请日：2002-03-01
申请人： John K Burgess , Orlett Wanda Pearson , Eshwar Pittampalli , David Albert Rossetti , Lily H Zhu
发明人： John K Burgess , Orlett Wanda Pearson , Eshwar Pittampalli , David Albert Rossetti , Lily H Zhu
IPC分类号： H04W48/12 , H04W56/00 , H04W68/00 , H04B7/216 , H04J3/12 , H04J13/00
CPC分类号： H04W48/12 , H04W56/00 , H04W68/00
摘要： Multiple carriers are used to provide access to a wireless communication system. A first carrier transmits synchronization messages in accordance with the IS-95B standard (communication protocol revision 5). The synchronization message directs mobiles attempting to access the network to a paging channel on the first carrier. The paging channel enables mobiles conforming to a standard of IS-2000 revision 0 or older to access the wireless network. The paging channel also includes an extended global service redirection message (EGSRM) that instructs mobiles conforming to the IS-2000 revision A standard (communication protocol revision 7) to use a synchronization channel on a second carrier for reception of an IS-2000 revision A synchronization message. The IS-2000 revision A (communication protocol revision 7) synchronization message instructs the mobile to access the wireless communication network using a BCCH and/or FCCCH on the second carrier, or using a BCCH and/or FCCCH on the first carrier.
摘要翻译：多个载波用于提供对无线通信系统的访问。第一载波根据IS-95B标准（通信协议修订版5）发送同步消息。同步消息指示尝试接入网络的移动台到第一载波上的寻呼信道。寻呼信道使得符合IS-2000修订版本0或更早版本的移动设备可以访问无线网络。寻呼信道还包括扩展的全球业务重定向消息（EGSRM），其指示符合IS-2000修订版A标准（通信协议修订版本7）的移动设备在第二个运营商上使用同步信道来接收IS-2000版本A 同步消息 IS-2000修订版A（通信协议修订版7）同步消息指示移动台使用第二载波上的BCCH和/或FCCCH或在第一载波上使用BCCH和/或FCCCH来访问无线通信网络。

2. 发明授权

US06889040B1 Service restriction control for mobile communications 有权
标题翻译：移动通信业务限制控制
公开(公告)号：US06889040B1
公开(公告)日：2005-05-03
申请号：US09686024
申请日：2000-10-11
申请人： Yuen-Yin L. Koo , Eshwar Pittampalli , David Albert Rossetti
发明人： Yuen-Yin L. Koo , Eshwar Pittampalli , David Albert Rossetti
IPC分类号： H04M3/42 , H04B7/26 , H04M3/00 , H04W28/18 , H04Q7/20
CPC分类号： H04W28/18
摘要： The possibility of incompatibility between wireless communication system stations having the most recent protocol revisions is addressed by transmitting from the base station to a mobile station characteristics that identify a mobile station group that is restricted to using less than the most recent protocol revision. Using less than the most recent protocol revision may involve using an earlier revision or a subset of the most current protocol revision. This permits a base station to direct mobiles to avoid using protocol revisions or features of protocol revisions that have been insufficiently tested or that have a history of problems for a particular base station/mobile station combination.Additionally, when a mobile station receives a message from a base station identifying which mobile stations are subject to what set of restrictions, the mobile station then sends a message to the base station requesting service that matches the restrictions that were identified associated with the group to which the mobile station belongs.
摘要翻译：具有最新协议修订版本的无线通信系统站之间的不兼容性的可能性是通过从基站向标识移动站组的移动站组的特性进行解决，所述移动站组被限制为使用小于最近的协议版本。使用少于最近的协议修订版可能涉及使用较早版本或最新协议版本的子集。这允许基站引导移动台以避免使用未被充分测试或具有特定基站/移动台组合的问题历史的协议修订或协议修订的特征。此外，当移动台从基站接收到识别哪些移动台受到什么限制集合的消息时，移动台然后向基站请求服务发送一个消息，该消息与被识别为与组相关联的限制匹配，移动台所属的。

3. 发明授权

US07158504B2 Multiple mode data communication system and method and forward and/or reverse link control channel structure 有权
公开(公告)号：US07158504B2
公开(公告)日：2007-01-02
申请号：US09861967
申请日：2001-05-21
申请人： Srinivas R. Kadaba , Farooq Ullah Khan , Eshwar Pittampalli , Ashok N. Rudrapatna , Ganapathy Subramanian Sundaram , Subramanian Vasudevan , Yunsong Yang
发明人： Srinivas R. Kadaba , Farooq Ullah Khan , Eshwar Pittampalli , Ashok N. Rudrapatna , Ganapathy Subramanian Sundaram , Subramanian Vasudevan , Yunsong Yang
IPC分类号： H04B7/212 , H04Q7/20
CPC分类号： H04W74/02 , H04L1/0002 , H04L1/1819 , H04L1/1845
摘要： A multiple mode data communication system and method provides the flexibility to schedule wireless unit transmissions and/or allow the wireless unit to transmit autonomously. In certain embodiments, the wireless units can transmit autonomously and/or use scheduling depending on the data rate, the length of the data packet or the type of data. For example, the wireless units can transmit autonomously at lower data rates and use scheduling at higher data rates. Thus, the multiple mode system enables wireless unit transmissions to be scheduled and/or be transmit autonomously, and wireless units can simultaneously operate in different scheduling and/or autonomous modes. Depending on the embodiment, the system can provide even greater flexibility in operation by permitting wireless units to be scheduled by a single base station, scheduled by a multiplicity of base stations simultaneously or otherwise, via coordination between base stations, scheduled by a multiplicity of base stations in an uncoordinated and asynchronous manner, allowed to transmit autonomously, and/or allowed to transmit autonomously under base station supervision (i.e. rate control/adjustment by the base station). Additionally, a forward and/or reverse link control channel structure is provided which can be used to implement the multiple mode data communication system and/or support various features enabling increased throughput over a shared data channel in a wireless communications system.

4. 发明授权

US08041359B1 Method for maintaining a communication link in wireless network groups 有权
标题翻译：在无线网络组中维护通信链路的方法
公开(公告)号：US08041359B1
公开(公告)日：2011-10-18
申请号：US09365678
申请日：1999-08-02
申请人： Eshwar Pittampalli
发明人： Eshwar Pittampalli
IPC分类号： H04W36/00
CPC分类号： H04W36/04 , H04B1/7143 , H04W24/00 , H04W48/18 , H04W60/00 , H04W76/20 , H04W84/18
摘要： Disclosed herein is a method and apparatus for maintaining communication between a dependent and a communications network when the dependent is outside a coverage area associated with its master using a controller and a communications network. In one embodiment, when the dependent is in a piconet, the dependent is within communication range of its master using a communication channel on frequency band fband(1). When the dependent moves outside the piconet, the dependent should be within communication range of the controller and, thus, switches to another communication channel within frequency band fband(1) such that it may communicate with the controller. When the dependent moves outside the communication range of the controller, the dependent should be within communication range of a communications network or a base station and, thus, switches to a communication channel within another frequency band fband(2).
摘要翻译：本文公开了一种用于在从属和通信网络之间进行通信的方法和装置，当所述从属和通信网络使用控制器和通信网络在与其主机相关联的覆盖区域之外时。在一个实施例中，当从属单元位于微微网中时，依赖于使用频带fband（1）上的通信信道的主机的通信范围内。当从属移动到微微网之外时，依赖应该在控制器的通信范围之内，因此，切换到频带fband（1）内的另一个通信信道，使得它可以与控制器进行通信。当依赖者移动到控制器的通信范围之外时，依赖应该在通信网络或基站的通信范围内，并且因此切换到另一频带fband（2）内的通信信道。

5. 发明授权

US06771958B1 Supporting concentrator in multiple paging channel environment 有权
标题翻译：支持集中器在多个寻呼信道环境中
公开(公告)号：US06771958B1
公开(公告)日：2004-08-03
申请号：US09293330
申请日：1999-04-16
申请人： Yuen-Yin L. Koo , Semyon B. Mizikovsky , Eshwar Pittampalli
发明人： Yuen-Yin L. Koo , Semyon B. Mizikovsky , Eshwar Pittampalli
IPC分类号： H04Q720
CPC分类号： H04W68/00
摘要： A paging signal is detected where the paging signal is intended for a mobile-telephone having a paging channel frequency that is different than a paging channel frequency associated with a concentrator. A base station transmits a base station-to-mobile-telephone (BS-MT) paging message by including such BS-MT paging message in a base station-to-concentrator (BS-C) paging message. The BS-MT paging message includes a message portion and a mobile-telephone identifier portion, wherein the mobile-telephone identifier portion indicates the mobile-telephone to which the BS-MT paging message is intended. The BS-C paging message includes the MT paging message and a concentrator identifier portion for indicating the concentrator to which the BS-C is intended. The BS-C paging message is transmitted over a paging channel on a frequency f1 associated with the intended concentrator (i.e., concentrator through which the mobile-telephone is linked to the base station). The intended concentrator detects the BS-C paging message by monitoring its associated paging channel on frequency f1 for a BS-C paging message with a concentrator identifier portion indicating the concentrator. Upon detecting its BS-C paging message, the concentrator parses the BS-MT paging message from the BS-C message and transmits the BS-MT paging message to the intended mobile-telephone using a paging channel on frequency f2 being monitored by the mobile-telephone.
摘要翻译：检测寻呼信号，其中寻呼信号用于具有不同于与集中器相关联的寻呼信道频率的寻呼信道频率的移动电话。基站通过在基站到集中器（BS-C）寻呼消息中包括这样的BS-MT寻呼消息来发送基站到移动电话（BS-MT）寻呼消息。 BS-MT寻呼消息包括消息部分和移动电话标识符部分，其中移动电话标识符部分指示BS-MT寻呼消息所针对的移动电话。 BS-C寻呼消息包括MT寻呼消息和用于指示BS-C所针对的集中器的集中器标识符部分。 BS-C寻呼消息通过与预期的集中器（即，移动电话通过该集中器链接到基站的集中器）相关联的频率f1上的寻呼信道上发送。预期的集中器通过在具有指示集中器的集中器标识符部分的BS-C寻呼消息的频率f1上监视其相关联的寻呼信道来检测BS-C寻呼消息。在检测到其BS-C寻呼消息时，集中器从BS-C消息解析BS-MT寻呼消息，并使用由移动台监视的频率f2上的寻呼信道将BS-MT寻呼消息发送到预定的移动电话 -电话。

6. 发明授权

US06968186B2 System and method for preventing dropped calls 有权
标题翻译：用于防止掉话的系统和方法
公开(公告)号：US06968186B2
公开(公告)日：2005-11-22
申请号：US09726962
申请日：2000-11-30
申请人： Eshwar Pittampalli , Subramanian Vasudevan
发明人： Eshwar Pittampalli , Subramanian Vasudevan
IPC分类号： H04W36/30 , H04Q7/20 , H04B7/00
CPC分类号： H04W36/08 , H04W36/30
摘要： A system and method for preventing a call from being dropped changes from a first set of serving base station(s) for the call to a second set of serving base station(s) which can be determined independently by both the wireless unit and the wireless communications system. As such, the wireless unit can attempt to recover the call using the second set of serving base station(s) even without the availability of a communication link between the wireless unit and the current set of serving base station(s). The wireless communications system can independently determine a second set of serving base station(s) for the call using information known at both the wireless communication system and at the wireless unit before the communication link was severed. For example, the wireless unit and the communications system can determine the second set of serving base station(s) using the candidate list identified with a previous pilot strength measurement message (PSMM) known to have been successfully reported to the wireless communications system. After the wireless communications system and the wireless unit determine that a call is in danger of being dropped, the wireless unit and the wireless communications system can automatically add base station(s) in the candidate set to the active set in attempting to recover the call.
摘要翻译：一种用于防止呼叫被丢弃的系统和方法从用于呼叫的第一组服务基站改变为可以由无线单元和无线两者独立地确定的第二服务基站集合通讯系统因此，即使在无线单元和当前的一组服务基站之间没有可用的通信链路的情况下，无线单元也可尝试使用第二组服务基站来恢复呼叫。在通信链路断开之前，无线通信系统可以使用在无线通信系统和无线单元两者已知的信息来独立地确定呼叫的第二组服务基站。例如，无线单元和通信系统可以使用已知已经成功报告给无线通信系统的先前导频强度测量消息（PSMM）标识的候选列表来确定第二组服务基站。在无线通信系统和无线单元确定呼叫存在丢弃的危险之后，无线单元和无线通信系统可以在尝试恢复呼叫时自动将候选集中的基站添加到活动集中。

7. 发明授权

US06314281B1 Method and apparatus for precisely locating a mobile unit 失效
标题翻译：用于精确定位移动单元的方法和装置
公开(公告)号：US06314281B1
公开(公告)日：2001-11-06
申请号：US09114840
申请日：1998-07-14
申请人： Jim Jingfu Chao , Eshwar Pittampalli
发明人： Jim Jingfu Chao , Eshwar Pittampalli
IPC分类号： H04M1100
CPC分类号： G08B25/016 , G01S1/68 , H04M2207/18 , H04M2242/04 , H04W4/90 , H04W76/50
摘要： A method and system for locating a precise physical location of a distressed enhanced mobile unit comprises use of a distress notification signal. In one embodiment, a distressed mobile unit emanates a predefined distress notification signal upon completion of an emergency services (e.g. 911) call. The distress notification signal is received by a rescue squad enhanced mobile unit in nearest proximity to the distressed enhanced mobile unit. The rescue squad enhanced mobile unit uses the distress notification signal to identify the location of the distressed mobile unit. In some embodiments, an audible distress signal is also issued by the distressed enhanced mobile unit so that rescue personnel can follow the audible signal to a user in distress.
摘要翻译：用于定位遇险增强型移动单元的精确物理位置的方法和系统包括使用遇险通知信号。在一个实施例中，遇难的移动单元在紧急服务（例如911）呼叫完成时发出预定的遇险通知信号。遇险通知信号由紧邻增强型移动单元最靠近的救援队增强型移动单元接收。救援队增强的移动单元使用遇险通知信号来识别遇难的移动单元的位置。在一些实施例中，听觉困扰信号也由受损增强的移动单元发出，使得救援人员可以在遇险中跟随用户的可听信号。

8. 发明授权

US06738637B1 Dynamic variation of class of service in a communication network based on network resources 失效
标题翻译：基于网络资源的通信网络中服务等级的动态变化
公开(公告)号：US06738637B1
公开(公告)日：2004-05-18
申请号：US09212885
申请日：1998-12-16
申请人： John Antonio Marinho , Eshwar Pittampalli , Daniel Charles Stanzione , George Isaac Zysman
发明人： John Antonio Marinho , Eshwar Pittampalli , Daniel Charles Stanzione , George Isaac Zysman
IPC分类号： H04B700
CPC分类号： H04W28/24 , H04L2012/6421 , H04L2012/6472 , H04L2012/6486 , H04W8/18 , H04W28/20 , H04W72/06
摘要： A communication system monitors the resources that are available for new users. When the availability of free resources becomes too small or falls below a threshold, the communication system initiates a reduction in the the class of service to selected users. The class of service can be reduced by reducing the quality of service provided to existing communications or by providing selected new users with only lower quality communications. The decision to alter the class of service is alerted to the end user and based on the profile of the end user, appropriate alteration of a specific resource parameter is undertaken. The quality of communications may be reduced, for example, by decreasing the information carrying capacity of the channel available to a particular user and thereby decreasing the data transfer rate, decreasing the amount of error encoding used to detect and correct errors introduced by a communication channel, or in the case of a wireless system, using a lower rate vocoder (voice encoder) which win reduce the voice quality or clarity of the speech transmitted over the communication channel.
摘要翻译：通信系统监视可用于新用户的资源。当可用资源的可用性变得太小或低于阈值时，通信系统启动对所选用户的服务等级的减少。可以通过降低提供给现有通信的服务质量，或通过为选定的新用户提供较低质量的通信来减少服务等级。改变服务等级的决定被提醒给最终用户，并且基于最终用户的简档，进行适当的特定资源参数的改变。可以减少通信质量，例如通过减少特定用户可用的信道的信息承载能力，从而降低数据传输速率，减少用于检测和纠正由通信信道引入的错误的错误编码量或者在无线系统的情况下，使用胜率降低通过通信信道发送的语音的语音质量或清晰度的较低速率声码器（语音编码器）。

9. 发明授权

US06587690B1 Method for allocating downlink electromagnetic power in wireless networks 有权
标题翻译：在无线网络中分配下行电磁功率的方法
公开(公告)号：US06587690B1
公开(公告)日：2003-07-01
申请号：US09249313
申请日：1999-02-12
申请人： David Di Huo , Eshwar Pittampalli
发明人： David Di Huo , Eshwar Pittampalli
IPC分类号： H04Q720
CPC分类号： H04W52/24 , H04W52/143 , H04W52/50
摘要： A method for allocating downlink power in a wireless network determines downlink transmit powers to permit a target performance goal to be satisfied for defined radio frequency coverage areas. Base stations transmit electromagnetic transmissions. Received signal parameters of the electromagnetic transmissions are measured at measurement locations within defined radio frequency coverage areas. A data processing system determines propagation factors associated with the electromagnetic transmissions as a function of the measurement locations. The data processing system determines a downlink transmit power for at least one of the base stations based upon at least one target performance goal for the coverage areas and the propagation factors.
摘要翻译：用于在无线网络中分配下行链路功率的方法确定下行链路发射功率，以允许针对定义的射频覆盖区域满足目标性能目标。基站传输电磁传输。在定义的射频覆盖区域内的测量位置处测量电磁传输的接收信号参数。数据处理系统根据测量位置确定与电磁传输相关联的传播因子。基于覆盖区域和传播因子的至少一个目标性能目标，数据处理系统确定至少一个基站的下行链路传输功率。

10. 发明授权

US06510319B2 Method for optimizing forward link power levels during soft handoffs in a wireless telecommunications network 失效
标题翻译：用于在无线电信网络中的软切换期间优化前向链路功率电平的方法
公开(公告)号：US06510319B2
公开(公告)日：2003-01-21
申请号：US09019267
申请日：1998-02-05
申请人： Modris Olgerts Allen Baum , Eshwar Pittampalli , Carl Francis Weaver
发明人： Modris Olgerts Allen Baum , Eshwar Pittampalli , Carl Francis Weaver
IPC分类号： H04Q720
CPC分类号： H04W52/143 , H04W36/08 , H04W36/18 , H04W52/40 , H04W88/08
摘要： Performance of a wireless telecommunications systems is enhanced by communication of an actual applied forward link gain and, if necessary, an overload indicator from base stations participating in a soft handoff. Subsequently, a power control system within a selection/distribution unit determines a forward link gain acceptable to all base stations involved in a soft handoff call.
摘要翻译：无线电信系统的性能通过实际应用的前向链路增益和必要时通过参与软切换的基站的过载指示符的通信来增强。随后，选择/分配单元内的功率控制系统确定软切换呼叫中涉及的所有基站可接受的前向链路增益。

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