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1. 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.

2. 发明申请

US20120003987A1 Method And Apparatus For Optimizing Network Throughput 审中-公开
标题翻译：优化网络吞吐量的方法和装置
公开(公告)号：US20120003987A1
公开(公告)日：2012-01-05
申请号：US12827380
申请日：2010-06-30
申请人： Subramanian Vasudevan , Kathiravetpillai Sivanesan , Ganapathy Subramanian Sundaram , Ashok N. Rudrapatna
发明人： Subramanian Vasudevan , Kathiravetpillai Sivanesan , Ganapathy Subramanian Sundaram , Ashok N. Rudrapatna
IPC分类号： H04W72/04
CPC分类号： H04W36/165 , H04W36/04 , H04W48/06 , H04W48/20
摘要： A method is provided a wireless system for optimizing network throughput in a wireless communication system. More particularly, the methodology of the invention evaluates the both individual user data throughput as well as the data throughput of a larger user population, in determining the base station to which a user should attach when entering the wireless system. In an alternate embodiment, the invention methodology evaluates such individual user data throughput and the user population throughput in determining whether or not to handoff a data session for a user from one base station to the other.
摘要翻译：提供了一种用于优化无线通信系统中的网络吞吐量的无线系统的方法。更具体地，本发明的方法在确定用户在进入无线系统时应该附加到的基站时，评估单个用户数据吞吐量以及较大用户群体的数据吞吐量。在替代实施例中，本发明方法在确定是否将用户的数据会话从一个基站切换到另一个基站时，评估这样的个体用户数据吞吐量和用户种群吞吐量。

3. 发明申请

US20070165667A1 Multiple mode data communication system and method and forward and/or reverse link control channel structure 审中-公开
标题翻译：多模式数据通信系统和方法以及前向和/或反向链路控制信道结构
公开(公告)号：US20070165667A1
公开(公告)日：2007-07-19
申请号：US11645608
申请日：2006-12-27
申请人： Srinivas Kadaba , Farooq Khan , Eshwar Pittampalli , Ashok Rudrapatna , Ganapathy Sundaram , Subramanian Vasudevan , Yunsong Yang
发明人： Srinivas Kadaba , Farooq Khan , Eshwar Pittampalli , Ashok Rudrapatna , Ganapathy Sundaram , Subramanian Vasudevan , Yunsong Yang
IPC分类号： H04J3/22 , H04L12/56 , H04L12/413 , H04L12/28 , H04J3/16
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.
摘要翻译：多模式数据通信系统和方法提供了调度无线单元传输和/或允许无线单元自主传输的灵活性。在某些实施例中，无线单元可以根据数据速率，数据分组的长度或数据类型自主地传输和/或使用调度。例如，无线单元可以以较低的数据速率自主传输，并以更高的数据速率使用调度。因此，多模式系统使得能够自主地调度和/或发送无线单元传输，并且无线单元可以以不同的调度和/或自主模式同时操作。根据实施例，系统可以通过允许由多个基站同时或以其他方式调度的单个基站来调度无线单元，从而通过基站之间的协调，由多个基站调度来提供更大的灵活性站点以不协调和异步的方式允许自主传输和/或允许在基站监督下自主传输（即基站的速率控制/调整）。另外，提供了可以用于实现多模式数据通信系统和/或支持各种特征的前向和/或反向链路控制信道结构，从而能够在无线通信系统中的共享数据信道上实现增加的吞吐量。

4. 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。

5. 发明申请

US20100284346A1 System and method for cell-edge performance management in wireless systems using centralized scheduling 审中-公开
标题翻译：使用集中式调度的无线系统中的小区边缘性能管理系统和方法
公开(公告)号：US20100284346A1
公开(公告)日：2010-11-11
申请号：US12455220
申请日：2009-05-30
申请人： Ashok N. Rudrapatna , Ganapathy S. Sundaram , Subramanian Vasudevan , Jialin Zou
发明人： Ashok N. Rudrapatna , Ganapathy S. Sundaram , Subramanian Vasudevan , Jialin Zou
IPC分类号： H04W72/04
CPC分类号： H04W72/1247 , H04W36/18 , H04W72/1284
摘要： A method is provided for scheduling transmission resources to a mobile station served by a plurality of base stations. According to the method of the invention, a centralized scheduler is provided at a network node operative to serve each of the plurality of base stations and the centralized scheduler acts to prioritize scheduling of transmission resources to the mobile station as a function of feedback information respecting data received by the mobile station from each of at least two of the plurality of base stations.
摘要翻译：提供了一种用于向由多个基站服务的移动台调度传输资源的方法。根据本发明的方法，在网络节点处提供集中式调度器，该网络节点可操作以服务于多个基站中的每一个，并且集中式调度器根据与数据相关的反馈信息的函数优先考虑向移动台调度传输资源由移动站从多个基站中的至少两个中的每一个接收。

6. 发明申请

US20100284345A1 System and method for cell-edge performance management in wireless systems using distributed scheduling 有权
标题翻译：使用分布式调度的无线系统中的小区边缘性能管理的系统和方法
公开(公告)号：US20100284345A1
公开(公告)日：2010-11-11
申请号：US12455215
申请日：2009-05-30
申请人： Ashok N. Rudrapatna , Ganapathy S. Sundaram , Subramanian Vasudevan , Jialin Zou
发明人： Ashok N. Rudrapatna , Ganapathy S. Sundaram , Subramanian Vasudevan , Jialin Zou
IPC分类号： H04W72/04
CPC分类号： H04W72/082 , H04B7/022 , H04L1/0048 , H04L1/1607 , H04L2001/0092 , H04W72/0413
摘要： A method is provided for scheduling transmission resources to a mobile station served by a plurality of base stations. According to the method of the invention, feedback information respecting data received by the mobile station from each of at least two of the plurality of base stations is received by the each of the plurality of base stations. An inference is then drawn at a second of the plurality of base stations of throughput parameters respecting a transmission channel between a first of the plurality of base stations and the mobile station. Transmission resources for the mobile station are then scheduled by the second base station as a function of the inferred throughput parameters.
摘要翻译：提供了一种用于向由多个基站服务的移动台调度传输资源的方法。根据本发明的方法，由多个基站中的至少两个基站中的每一个接收由移动台接收的数据的反馈信息由多个基站中的每个基站接收。然后在多个基站中的第二个基础上，对与多个基站中的第一个基站和移动台之间的传输信道相关的吞吐量参数进行推断。然后由第二基站调度用于移动站的传输资源作为推断的吞吐量参数的函数。

7. 发明授权

US08300584B2 System and method for cell-edge performance management in wireless systems using distributed scheduling 有权
标题翻译：使用分布式调度的无线系统中的小区边缘性能管理的系统和方法
公开(公告)号：US08300584B2
公开(公告)日：2012-10-30
申请号：US12455215
申请日：2009-05-30
申请人： Ashok N. Rudrapatna , Ganapathy S. Sundaram , Subramanian Vasudevan , Jialin Zou
发明人： Ashok N. Rudrapatna , Ganapathy S. Sundaram , Subramanian Vasudevan , Jialin Zou
IPC分类号： H04W80/00
CPC分类号： H04W72/082 , H04B7/022 , H04L1/0048 , H04L1/1607 , H04L2001/0092 , H04W72/0413
摘要： A method is provided for scheduling transmission resources to a mobile station served by a plurality of base stations. According to the method of the invention, feedback information respecting data received by the mobile station from each of at least two of the plurality of base stations is received by the each of the plurality of base stations. An inference is then drawn at a second of the plurality of base stations of throughput parameters respecting a transmission channel between a first of the plurality of base stations and the mobile station. Transmission resources for the mobile station are then scheduled by the second base station as a function of the inferred throughput parameters.
摘要翻译：提供了一种用于向由多个基站服务的移动台调度传输资源的方法。根据本发明的方法，由多个基站中的至少两个基站中的每一个接收由移动台接收的数据的反馈信息由多个基站中的每个基站接收。然后在多个基站中的第二个基础上，对与多个基站中的第一个基站和移动台之间的传输信道相关的吞吐量参数进行推断。然后由第二基站调度用于移动站的传输资源作为推断的吞吐量参数的函数。

8. 发明申请

US20100291935A1 Multi-stream wireless relay 审中-公开
标题翻译：多流无线中继
公开(公告)号：US20100291935A1
公开(公告)日：2010-11-18
申请号：US12459341
申请日：2009-06-30
申请人： Ashok N. Rudrapatna , Kathiravetpillai Sivanesan , Subramanian Vasudevan
发明人： Ashok N. Rudrapatna , Kathiravetpillai Sivanesan , Subramanian Vasudevan
IPC分类号： H04W72/00 , H04B7/14
CPC分类号： H04B7/2606 , H04B7/155 , H04W16/26 , H04W40/22 , H04W72/082
摘要： A multi-stream wireless relay is arranged to maintain independent data streams with multiple base stations and thereby provide a relay from those multiple base stations to mobile units having respective communication relationships with those multiple base stations. In an alternative approach, the data streams from the multiple base stations are superposed on each other, wherein harmful inter-cell interference is converted into useful information bearing signals, thereby enabling the scheduling of transmission resources from the multiple base stations for a single mobile unit via the relay.
摘要翻译：多流无线中继器被设置为维持具有多个基站的独立数据流，从而提供从那些多个基站到具有与那些多个基站具有相应通信关系的移动单元的中继。在另一种方法中，来自多个基站的数据流彼此重叠，其中有害的小区间干扰被转换为有用的信息承载信号，从而使得能够从单个移动单元的多个基站调度传输资源通过继电器

9. 发明授权

US07430241B2 Method for early decoding of control channel information 有权
标题翻译：控制信道信息的早期解码方法
公开(公告)号：US07430241B2
公开(公告)日：2008-09-30
申请号：US10388553
申请日：2003-03-14
申请人： Subramanian Vasudevan , Yunsong Yang , Wenfeng Zhang
发明人： Subramanian Vasudevan , Yunsong Yang , Wenfeng Zhang
IPC分类号： H04L27/00
CPC分类号： H04L1/0071 , H04L1/0001 , H04L1/001 , H04L1/0032 , H04L1/0038 , H04L1/0046 , H04L1/0059 , H04L1/0072 , H04L1/08
摘要： A system and method for transmitting and receiving control information over a control channel of a wireless communication system where the conveyed information is coded and then transformed by a set of transform function selected from a plurality of sets of transform functions. The control information is transmitted as replicated sub-frames containing replicated code words and such a string of transformed replicated code words is referred to as a control message. At a receive end inverse transform functions from different sets of functions are applied to a sub-frame of a control message so that if the sub-frame is successfully decoded the inverse transform function applied to such frame allows the timing of the control message to be determined.
摘要翻译：一种用于在无线通信系统的控制信道上发送和接收控制信息的系统和方法，其中传送的信息被编码，然后通过从多组变换函数中选择的一组变换函数进行变换。作为包含复制码字的复制子帧发送控制信息，将这样的变换后的复制码字串称为控制消息。在接收端，来自不同功能集合的逆变换函数被应用于控制消息的子帧，使得如果子帧被成功解码，则应用于这样的帧的逆变换功能允许控制消息的定时为决心。

10. 发明申请

US20060056354A1 Method of conducting rate control, scheduling and acknowledgement in wireless communication system 有权
公开(公告)号：US20060056354A1
公开(公告)日：2006-03-16
申请号：US10941266
申请日：2004-09-15
申请人： Subramanian Vasudevan , Yunsong Yang
发明人： Subramanian Vasudevan , Yunsong Yang
IPC分类号： H04Q7/00
CPC分类号： H04W72/042 , H04W28/22 , H04W36/18
摘要： A method for transmitting control information from multiple base stations in an active set to a mobile device in a wireless communication system reduces resource consumption by routing information originating from a plurality of active base stations through a single serving base station. The serving base station pools and resolves the information from the active base stations and sends the resolution of the pooled information over a downlink control channel for evaluation and response by the mobile device.

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