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71. 发明授权

US06708040B1 Link level support of wireless data 有权
标题翻译：链路级支持无线数据
公开(公告)号：US06708040B1
公开(公告)日：2004-03-16
申请号：US09596817
申请日：2000-06-19
申请人： Rajiv Laroia , Junyi Li , Sathyadev Venkata Uppala
发明人： Rajiv Laroia , Junyi Li , Sathyadev Venkata Uppala
IPC分类号： H04B700
CPC分类号： H04W74/0866 , H04W68/00
摘要： In a wireless communication system, mobile unit and base station access request and page transmissions are addressed by employing an efficient unified approach for the transmission and detection of both access requests from a mobile unit and pages from a base station. To this end, a mobile unit monitors for access requests and monitors a prescribed resource to detect if a page has been received. Upon detection of an access request, a corresponding request message is generated and transmitting substantially immediately to a base station, thereby minimizing latency in the access process. Concurrently, a base station monitors to determine if a page indication has been received and monitors a prescribed resource to determine if an access request message has been received. In this process, the processing of request messages takes precedence over the processing of pages. Upon detecting a received request message a request response message is generated and transmitted substantially immediately to the mobile unit, thereby also minimizing latency in the access process.
摘要翻译：在无线通信系统中，移动单元和基站访问请求和页面传输通过采用有效的统一方法来解决，用于传输和检测来自移动单元的访问请求和来自基站的页面。为此，移动单元监视访问请求并监视规定的资源以检测是否已经接收到页面。在检测到访问请求时，产生相应的请求消息并基本上立即发送到基站，从而最小化访问过程中的等待时间。同时，基站监视以确定是否已经接收到页面指示，并且监视规定的资源以确定是否已经接收到访问请求消息。在此过程中，请求消息的处理优先于页面的处理。在检测到接收到的请求消息时，生成请求响应消息并将其基本上立即发送到移动单元，从而也使访问过程中的等待时间最小化。

72. 发明申请

US20070242639A1 Overhead signaling in a wireless communication system 有权
标题翻译：无线通信系统中的开销信号
公开(公告)号：US20070242639A1
公开(公告)日：2007-10-18
申请号：US11487260
申请日：2006-07-14
申请人： Alexander Leonidov , Hui Jin , Rajiv Laroia , Junyi Li , Murari Srinivasan
发明人： Alexander Leonidov , Hui Jin , Rajiv Laroia , Junyi Li , Murari Srinivasan
IPC分类号： H04B7/216
CPC分类号： H04L27/2608
摘要： Improved ways of communicating assignment signals using flash signaling are described, e.g., for wireless terminals with low SNR, that are more robust against large variation of channel gains due to e.g., frequency selective fading and fast fading in time. Coding and modulation methods and apparatus that have excellent properties against symbol erasures are described. The use of flash signaling provides an improved assignment channel having strong performance on the fading channel without compromising the performance on the AWGN channel. In one exemplary embodiment, the coding and modulation method can tolerate up to 5 erased symbols out of 8 transmitted symbols. One embodiment reduces or minimizes the sector interference on the flash assignment by improving or maximizing orthogonality between different sectors. In addition, one embodiment describes improved ways of swapping flash assignment tone-symbols in the presence other high priority signals, like sector pilots and sector null pilots.
摘要翻译：例如，对于具有低SNR的无线终端，使用闪信号进行传送分配信号的改进方式对于由于例如频率选择性衰落和时间上的快速衰落而导致的信道增益的大变化更加鲁棒。描述了具有针对符号擦除的优异特性的编码和调制方法和装置。闪光信令的使用提供了在衰落信道上具有强性能的改进的分配信道，而不损害AWGN信道上的性能。在一个示例性实施例中，编码和调制方法可以容忍8个发送的符号中多达5个擦除的符号。一个实施例通过改善或最大化不同扇区之间的正交性来减少或最小化闪存分配上的扇区干扰。此外，一个实施例描述了在存在其他高优先级信号（如扇区导频和扇区空导频）时交换闪存分配音调符号的改进方式。

73. 发明授权

US08005158B2 Overhead signaling in a wireless communication system 有权
标题翻译：无线通信系统中的开销信号
公开(公告)号：US08005158B2
公开(公告)日：2011-08-23
申请号：US11487260
申请日：2006-07-14
申请人： Alexander Leonidov , Hui Jin , Rajiv Laroia , Junyi Li , Murari Srinivasan
发明人： Alexander Leonidov , Hui Jin , Rajiv Laroia , Junyi Li , Murari Srinivasan
IPC分类号： H04L5/12 , H04L23/02
CPC分类号： H04L27/2608
摘要： Improved ways of communicating assignment signals using flash signaling are described, e.g., for wireless terminals with low SNR, that are more robust against large variation of channel gains due to e.g., frequency selective fading and fast fading in time. Coding and modulation methods and apparatus that have excellent properties against symbol erasures are described. The use of flash signaling provides an improved assignment channel having strong performance on the fading channel without compromising the performance on the AWGN channel. In one exemplary embodiment, the coding and modulation method can tolerate up to 5 erased symbols out of 8 transmitted symbols. One embodiment reduces or minimizes the sector interference on the flash assignment by improving or maximizing orthogonality between different sectors. In addition, one embodiment describes improved ways of swapping flash assignment tone-symbols in the presence other high priority signals, like sector pilots and sector null pilots.
摘要翻译：例如，对于具有低SNR的无线终端，改进的使用闪信号进行分配信号的方式被描述，对于由于例如频率选择性衰落和时间上的快速衰落而导致的信道增益的大变化更加鲁棒。描述了具有针对符号擦除的优异特性的编码和调制方法和装置。闪光信令的使用提供了在衰落信道上具有强性能的改进的分配信道，而不损害AWGN信道上的性能。在一个示例性实施例中，编码和调制方法可以容忍8个发送的符号中多达5个擦除的符号。一个实施例通过改善或最大化不同扇区之间的正交性来减少或最小化闪存分配上的扇区干扰。此外，一个实施例描述了在存在其他高优先级信号（如扇区导频和扇区空导频）时交换闪存分配音调符号的改进方式。

74. 发明授权

US09178732B2 Beacon coding in wireless communications systems 有权
标题翻译：无线通信系统中的信标编码
公开(公告)号：US09178732B2
公开(公告)日：2015-11-03
申请号：US12446728
申请日：2007-10-26
申请人： Thomas Richardson , Husheng Li , Junyi Li , Alexander Leonidov , Rajiv Laroia , Ravi Palanki , Gavin Horn , Ashwin Sampath
发明人： Thomas Richardson , Husheng Li , Junyi Li , Alexander Leonidov , Rajiv Laroia , Ravi Palanki , Gavin Horn , Ashwin Sampath
IPC分类号： H04W72/04 , H04J3/00 , H04L27/10 , H04L1/00 , H04L5/00
CPC分类号： H04L27/10 , H04L1/0045 , H04L5/0053 , H04L5/0091
摘要： Systems and methodologies are described that facilitate transmitting beacon symbols of a beacon message such that a sequence of symbols can satisfy a linear constraint over a field where the field elements can be identified with carriers. In this regard, a coding scheme can be applied to a beacon message; the coding scheme can produce a plurality of beacon symbols to transmit on given subcarriers. A receiving device of the beacon symbols can decode a beacon message by receiving less than the total number of symbols in a beacon message and determining the remaining symbol subcarriers based on the linear constraint. Thus, more efficient decoding of beacons is facilitated as well as resolving beacon ambiguity by figuring out which symbols satisfy linear constraints for the symbols, and resolving time and frequency shift by detecting an offset that would result in satisfaction of the linear constraint.
摘要翻译：描述了促进发送信标消息的信标符号的系统和方法，使得符号序列可以满足可以用载波识别场元素的场的线性约束。在这方面，编码方案可以应用于信标消息; 编码方案可以产生多个信标符号，以在给定子载波上进行传输。信标符号的接收设备可以通过接收小于信标消息中的总符号数来解码信标消息，并且基于线性约束确定剩余的符号子载波。因此，有助于信标的更有效的解码以及通过找出哪些符号满足符号的线性约束来解析信标模糊度，以及通过检测将导致满足线性约束的偏移来解决时间和频率偏移。

75. 发明授权

US08488602B2 Methods and apparatus for transmitting group communication signals 有权
标题翻译：发送组通信信号的方法和装置
公开(公告)号：US08488602B2
公开(公告)日：2013-07-16
申请号：US11205294
申请日：2005-08-16
申请人： M. Scott Corson , Rajiv Laroia , Alan O'Neill , Vincent Park , Murari Srinivasan , Sathyadev Venkata Uppala
发明人： M. Scott Corson , Rajiv Laroia , Alan O'Neill , Vincent Park , Murari Srinivasan , Sathyadev Venkata Uppala
IPC分类号： H04L12/56
CPC分类号： H04L12/1877 , H04L12/1836 , H04L12/1854 , H04L12/189 , H04L45/16 , H04W4/06 , H04W4/08 , H04W28/18 , H04W28/22 , H04W52/26 , H04W52/262 , H04W52/267 , H04W52/286 , H04W52/327 , H04W72/005 , H04W72/04 , H04W84/08
摘要： Group communications methods and apparatus are described. Multiple modes of group communications signaling are supported. In a first mode, copies of packets are separately transmitted to each group member in a sector or cell. In a second mode a copy of a packet is directed to multiple group members at the same time. Transitions between the two modes may be determined as a function of the cost of operating in each of the modes in terms of system cost and/or the number of group members in a cell or sector being serviced by a transmitter.
摘要翻译：描述组通信方法和装置。支持组通信信令的多种模式。在第一模式中，分组的副本被分别发送到扇区或小区中的每个组成员。在第二模式中，分组的副本同时被引导到多个组成员。可以根据系统成本和/或由发射机服务的小区或扇区中的组成员的数量来确定两种模式之间的转换作为在每个模式中操作的成本的函数。

76. 发明授权

US07729686B2 Security methods for use in a wireless communications system 失效
标题翻译：用于无线通信系统的安全方法
公开(公告)号：US07729686B2
公开(公告)日：2010-06-01
申请号：US11471062
申请日：2006-06-19
申请人： M. Scott Corson , Rajiv Laroia , Vincent Park , Sathyadev Venkata Uppala , Michaela Vanderveen
发明人： M. Scott Corson , Rajiv Laroia , Vincent Park , Sathyadev Venkata Uppala , Michaela Vanderveen
IPC分类号： H04M1/66 , H04M1/68 , H04M3/16
CPC分类号： H04L9/3236 , H04L63/0807 , H04L63/12 , H04L2209/80 , H04W12/02 , H04W12/06 , H04W12/10 , H04W12/12 , H04W88/08
摘要： Signal, e.g., message, security techniques are described for wireless systems. A first signal is received by an access node via a wireless link. The signal includes a first authenticator that was generated by the transmitting device, e.g., wireless terminal. The access node determines from an attribute of the signal at least some information known to both the access node and transmitting device but which was not transmitted as part of the message content. The determined information was used by the wireless terminal in generating the first authenticator. The access node sends at least a portion of the first signal including the first authenticator and the determined information to another entity. The entity compares the first authenticator to a second authenticator it generates from the determined information and a secure key which it shares with the transmitting device to determine if the first and second authenticators match.
摘要翻译：为无线系统描述信号，例如消息，安全技术。接入节点经由无线链路接收第一信号。信号包括由发送设备例如无线终端产生的第一认证器。接入节点根据信号的属性确定接入节点和发送设备都已知的至少一些信息，但是未作为消息内容的一部分发送。确定的信息被无线终端用于生成第一认证器。接入节点将包括第一认证器的第一信号的至少一部分和确定的信息发送到另一个实体。实体将第一鉴别器与其确定的信息产生的第二认证器和与发送设备共享的安全密钥进行比较，以确定第一和第二认证符是否匹配。

77. 发明授权

US08995466B2 Communications methods and apparatus for using a single logical link with multiple physical layer connections 有权
标题翻译：用于使用具有多个物理层连接的单个逻辑链路的通信方法和装置
公开(公告)号：US08995466B2
公开(公告)日：2015-03-31
申请号：US11316601
申请日：2005-12-22
申请人： Pablo Anigstein , Murari Srinivasan , Sathyadev Venkata Uppala , Rakesh Champalal Dugad , Arnab Das , Vladimir Parizhsky , Rajiv Laroia
发明人： Pablo Anigstein , Murari Srinivasan , Sathyadev Venkata Uppala , Rakesh Champalal Dugad , Arnab Das , Vladimir Parizhsky , Rajiv Laroia
IPC分类号： H04J3/22 , H04W88/08 , H04L25/14 , H04W88/10
CPC分类号： H04W88/08 , H04L25/14 , H04W88/10
摘要： A base station uses a common link layer controller for multiple physical attachment points to facilitate concurrent wireless connections between different sector physical attachment points and a wireless terminal using the same link layer link. A wireless terminal maintains multiple simultaneous wireless connections for the same link layer link. A packet of user data is fragmented into a plurality of grouping of MAC frames, thus a packet portion can be communicated over a connection. A single packet is sometimes communicated with different portions conveyed over different wireless connections. Automatic repeat request, using the common link layer controller, allows for retransmission of a packet portion over a different connection than it was initially transmitted over. A wireless terminal sends connection request messages including lists of link layer identifiers associated with the wireless terminal. A base station responds with an indication of whether logical link state was already present.
摘要翻译：基站使用用于多个物理连接点的公共链路层控制器来促进不同扇区物理连接点之间的并发无线连接以及使用相同链路层链路的无线终端。无线终端为相同的链路层链路维护多个同时的无线连接。用户数据的分组被分段成多个MAC帧分组，因此可以通过连接来传送分组部分。有时通过不同的部分在不同的无线连接上传送单个分组。使用公共链路层控制器的自动重发请求允许通过不同于最初发送的连接重传分组部分。无线终端发送包括与无线终端相关联的链路层标识符的连接请求消息。基站响应是否存在逻辑链路状态的指示。

78. 发明授权

US07392056B2 Methods and apparatus for updating mobile node location information 失效
标题翻译：更新移动节点位置信息的方法和装置
公开(公告)号：US07392056B2
公开(公告)日：2008-06-24
申请号：US11327791
申请日：2006-01-06
申请人： M. Scott Corson , Rajiv Laroia , Vincent Park , Sathyadev Venkata Uppala , Michaela Vanderveen
发明人： M. Scott Corson , Rajiv Laroia , Vincent Park , Sathyadev Venkata Uppala , Michaela Vanderveen
IPC分类号： H04Q7/20
CPC分类号： H04W68/00 , H04L63/126 , H04W12/10 , H04W12/12 , H04W28/24 , H04W60/00 , H04W72/04
摘要： Location update techniques are described. A dormant mobile node updates its location information by sending a first message over a wireless link to an access node. The access node generates a second update message in response to the first message. The second message includes a mobile node identifier and, in some embodiments is directed to the mobile node. The second message is received by a tracking agent, which updates location information corresponding to the mobile node. In the case where second message is an IP message and is routed to the mobile node using Mobile IP, a Mobile IP home agent routes the second message to the mobile node's last point of network attachment where the tracking agent is located and intercepts the message. The tracking agent may send a response message to the access node sending the second message.
摘要翻译：描述位置更新技术。休眠移动节点通过无线链路向接入节点发送第一消息来更新其位置信息。接入节点响应于第一消息生成第二更新消息。第二消息包括移动节点标识符，并且在一些实施例中指向移动节点。第二消息由跟踪代理接收，跟踪代理更新对应于移动节点的位置信息。在第二消息是IP消息并且使用移动IP路由到移动节点的情况下，移动IP归属代理将第二消息路由到移动节点的最后一个网络附着点，跟踪代理所在的位置并拦截该消息。跟踪代理可以向发送第二消息的接入节点发送响应消息。

79. 发明授权

US07069000B1 Security methods for use in a wireless communications system 失效
标题翻译：用于无线通信系统的安全方法
公开(公告)号：US07069000B1
公开(公告)日：2006-06-27
申请号：US10640960
申请日：2003-08-13
申请人： M. Scott Corson , Rajiv Laroia , Vincent Park , Sathyadev Venkata Uppala , Michaela Vanderveen
发明人： M. Scott Corson , Rajiv Laroia , Vincent Park , Sathyadev Venkata Uppala , Michaela Vanderveen
IPC分类号： H04M1/66
CPC分类号： H04L63/08 , H04L63/12 , H04L63/1408 , H04W12/06 , H04W12/10 , H04W12/12
摘要： Signal, e.g., message, security techniques are described for wireless systems. A first signal is received by an access node via a wireless link. The signal includes a first authenticator that was generated by the transmitting device, e.g., wireless terminal. The access node determines from an attribute of the signal at least some information known to both the access node and transmitting device but which was not transmitted as part of the message content. The determined information was used by the wireless terminal in generating the first authenticator. The access node sends at least a portion of the first signal including the first authenticator and the determined information to another entity. The entity compares the first authenticator to a second authenticator it generates from the determined information and a secure key which it shares with the transmitting device to determine if the first and second authenticators match.
摘要翻译：为无线系统描述信号，例如消息，安全技术。接入节点经由无线链路接收第一信号。信号包括由发送设备例如无线终端产生的第一认证器。接入节点根据信号的属性确定接入节点和发送设备都已知的至少一些信息，但是未作为消息内容的一部分发送。确定的信息被无线终端用于生成第一认证器。接入节点将包括第一认证器的第一信号的至少一部分和确定的信息发送到另一个实体。实体将第一鉴别器与其确定的信息产生的第二认证器和与发送设备共享的安全密钥进行比较，以确定第一和第二认证符是否匹配。

80. 发明授权

US07016690B2 Methods and apparatus for updating mobile node location information 失效
公开(公告)号：US07016690B2
公开(公告)日：2006-03-21
申请号：US10640961
申请日：2003-08-13
申请人： M. Scott Corson , Rajiv Laroia , Vincent Park , Sathyadev Venkata Uppala , Michaela Vanderveen
发明人： M. Scott Corson , Rajiv Laroia , Vincent Park , Sathyadev Venkata Uppala , Michaela Vanderveen
IPC分类号： H04Q7/20
CPC分类号： H04W68/00 , H04L63/126 , H04W12/10 , H04W12/12 , H04W28/24 , H04W60/00 , H04W72/04
摘要： Location update techniques are described. A dormant mobile node updates its location information by sending a first message over a wireless link to an access node. The access node generates a second update message in response to the first message. The second message includes a mobile node identifier and, in some embodiments is directed to the mobile node. The second message is received by a tracking agent, which updates location information corresponding to the mobile node. In the case where second message is an IP message and is routed to the mobile node using Mobile IP, a Mobile IP home agent routes the second message to the mobile node's last point of network attachment where the tracking agent is located and intercepts the message. The tracking agent may send a response message to the access node sending the second message.

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