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1. 发明授权

US07187715B2 Systems and methods for providing adaptive pulse position modulated code division multiple access for ultra-wideband communication links 有权
标题翻译：为超宽带通信链路提供自适应脉冲位置调制码分多址的系统和方法
公开(公告)号：US07187715B2
公开(公告)日：2007-03-06
申请号：US10252351
申请日：2002-09-23
申请人： Krishna Balachandran , Doru Calin , Tingfang Ji , Joseph H. Kang
发明人： Krishna Balachandran , Doru Calin , Tingfang Ji , Joseph H. Kang
IPC分类号： H04B14/04
CPC分类号： H04B1/7176 , H04B2001/6908 , H04L25/4902
摘要： An adaptive pulse position modulated CDMA scheme for use in UWB communications systems is disclosed. A stream of input bits is encoded with spreading code sequence. The spreading code sequence consists of a number of code elements that may have one of two values. Each bit is encoded into a symbol consisting of a predefined number of chips, which are transmitted during a symbol period. Next, at least one code element is associated with each chip in the symbol. Then, an encoded pulse is generated in each chip. Each encoded pulse has a value determined by multiplying the data bit with the code value associated with the particular chip. The encoded pulse is then pulse position modulated by shifting the position of the pulse to a first position or a second position within the chip depending upon the encoded value of the pulse.
摘要翻译：公开了一种用于UWB通信系统的自适应脉冲位置调制CDMA方案。输入比特流用扩展码序列编码。扩展码序列由可能具有两个值之一的多个代码元素组成。每个位被编码成由符号周期内发送的预定数量的芯片组成的符号。接下来，至少一个代码元素与符号中的每个芯片相关联。然后，在每个芯片中产生编码脉冲。每个编码脉冲具有通过将数据位与与特定芯片相关联的代码值相乘确定的值。然后根据脉冲的编码值，将脉冲的位置移位到芯片内的第一位置或第二位置，从而进行脉冲位置调制。

2. 发明授权

US07082153B2 Variable spacing pulse position modulation for ultra-wideband communication links 有权
标题翻译：用于超宽带通信链路的可变间隔脉冲位置调制
公开(公告)号：US07082153B2
公开(公告)日：2006-07-25
申请号：US10251954
申请日：2002-09-23
申请人： Krishna Balachandran , Doru Calin , Tingfang Ji , Joseph H. Kang
发明人： Krishna Balachandran , Doru Calin , Tingfang Ji , Joseph H. Kang
IPC分类号： H04B1/69 , H04B7/212 , H03K7/04
CPC分类号： H04B1/7176 , H04B2001/6908 , H04L25/4902
摘要： Methods and systems for generating a variable spacing pulse position modulated (VSPPM) signal for transmission across an ultra-wideband communications channel. The variable pulse position modulated spread spectrum signal is created by encoding every M input data bits from an input data stream into a symbol consisting of Nc chips. Each chip is divided into 2M sub-chips and each sub-chip is further divided into Np time slots. A pulse is transmitted for each chip in the symbol. During each chip period, the pulse is placed in the sub-chip corresponding to the binary M-tuple (or symbol) value. A time hopping code sequence consisting of Nc elements with a one-to-one chip association is then applied to each symbol so that the position of each pulse is shifted to the appropriate time slot that corresponds to the time hopping code value.
摘要翻译：用于生成用于跨超宽带通信信道传输的可变间隔脉冲位置调制（VSPPM）信号的方法和系统。可变脉冲位置调制扩频信号是通过将每输入数据流中每M个输入数据位编码成由N个芯片组成的符号来产生的。每个芯片被分成2个M个子芯片，并且每个子芯片被进一步分成N个时隙。为符号中的每个芯片发送一个脉冲。在每个码片周期期间，脉冲被放置在对应于二进制M元组（或符号）值的子芯片中。然后将由具有一对一芯片关联的N＆lt; c＆gt;元素组成的跳时码序列应用于每个符号，使得每个脉冲的位置被转移到对应于跳码代码。

3. 发明申请

US20080075032A1 METHOD OF RESOURCE ALLOCATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统资源分配方法
公开(公告)号：US20080075032A1
公开(公告)日：2008-03-27
申请号：US11534271
申请日：2006-09-22
申请人： Krishna Balachandran , Doru Calin , Niranjan Sudhir Joshi , Joseph H. Kang , Achilles Kogiantis
发明人： Krishna Balachandran , Doru Calin , Niranjan Sudhir Joshi , Joseph H. Kang , Achilles Kogiantis
IPC分类号： H04B7/185 , H04B7/204 , H04Q7/20
CPC分类号： H04W72/04 , H04W72/0486 , H04W72/08
摘要： The present invention provides a method for allocating portions of a frame to a plurality of mobile units including a plurality of frequency subcarrier sets and a plurality of symbols. The method includes determining at least one zone comprising at least one of the plurality of subcarrier sets and at least one of the plurality of symbols and determining a plurality of subzones. Each subzone includes at least one of the plurality of subcarrier sets and at least one of the plurality of symbols in the at least one zone. The method also includes associating each of the plurality of mobile units with at least one of the subzones and allocating a portion of the subcarrier sets and symbols in each subzone to the mobile units associated with each subzone.
摘要翻译：本发明提供了一种用于将帧的部分分配给包括多个频率子载波集合和多个符号的多个移动单元的方法。该方法包括确定包括多个子载波集合中的至少一个和多个符号中的至少一个的至少一个区域并确定多个子区域。每个子区域包括多个子载波组中的至少一个以及至少一个区域中的多个符号中的至少一个。该方法还包括将多个移动单元中的每一个与子区域中的至少一个相关联，并将每个子区域中的子载波集合和符号的一部分分配给与每个子区域相关联的移动单元。

4. 发明授权

US08081609B2 Proxy-based signaling architecture for streaming media services in a wireless communication system 有权
标题翻译：用于无线通信系统中流媒体业务的基于代理的信令架构
公开(公告)号：US08081609B2
公开(公告)日：2011-12-20
申请号：US11674858
申请日：2007-02-14
申请人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
发明人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
IPC分类号： H04W4/00
CPC分类号： H04L47/10 , H04L47/14 , H04L47/2416 , H04L47/263 , H04L47/30
摘要： The present invention provides a method involving a media server, a wireless access network, at least one media client, and a proxy server. The method includes accessing, at the proxy server, at least one message including information indicating impending establishment of a media session between the media server and said at least one media client. The method also includes providing, from the proxy server, information indicating the impending establishment of the media session and a request to receive feedback associated with the media session. The method further includes receiving, at the proxy server, feedback associated with the media session in response to providing the request to receive feedback associated with the media session.
摘要翻译：本发明提供一种涉及媒体服务器，无线接入网络，至少一个媒体客户端和代理服务器的方法。该方法包括在代理服务器处访问至少一个消息，其包括指示媒体服务器和所述至少一个媒体客户端之间的媒体会话即将建立的信息。该方法还包括从代理服务器提供指示媒体会话的即将建立的信息以及接收与媒体会话相关联的反馈的请求。该方法还包括响应于提供接收与媒体会话相关联的反馈的请求，在代理服务器处接收与媒体会话相关联的反馈。

5. 发明授权

US08812712B2 Proxy-driven content rate selection for streaming media servers 有权
标题翻译：流媒体服务器的代理驱动内容速率选择
公开(公告)号：US08812712B2
公开(公告)日：2014-08-19
申请号：US12222897
申请日：2008-08-19
申请人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
发明人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
IPC分类号： G06F15/16
CPC分类号： H04L65/605 , G06F15/16 , H04L65/4092 , H04L65/602 , H04L65/80
摘要： Methods for proxy-driven content rate selection for streaming media servers are provided. In one method, one or more maximum transmission rate parameters from a network controller are stored at a proxy server in response to a receiver report message from the client. A target rate for the media session is generated based on the stored maximum transmission rate parameters, and the target rate is transmitted to a media server in a proxy-to-server feedback message. The media server selects the content rate from among a plurality of supported content rates in response to the proxy-to-server feedback message from the proxy server, and streams streaming multimedia frames to the client at the selected content rate.
摘要翻译：提供了流媒体服务器的代理驱动内容速率选择方法。在一种方法中，响应于来自客户端的接收器报告消息，来自网络控制器的一个或多个最大传输速率参数被存储在代理服务器处。基于存储的最大传输速率参数生成媒体会话的目标速率，并且在代理服务器反馈消息中将目标速率发送到媒体服务器。媒体服务器响应于来自代理服务器的代理服务器反馈消息，从多个支持的内容速率中选择内容速率，并且以选定的内容速率将流多媒体帧流传输给客户端。

6. 发明申请

US20110225317A1 Content rate selection for media servers with proxy-feedback-controlled frame transmission 有权
标题翻译：具有代理反馈控制的帧传输的媒体服务器的内容速率选择
公开(公告)号：US20110225317A1
公开(公告)日：2011-09-15
申请号：US13064288
申请日：2011-03-16
申请人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
发明人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
IPC分类号： G06F15/16
CPC分类号： H04L65/605 , G06F15/16 , H04L65/4092 , H04L65/602 , H04L65/80
摘要： In a method for dynamically setting a content rate of a multimedia session for a client in a network, a proxy server receives a channel condition feedback message from a network controller and determines whether a receiver report message has been received from the client since a most recent previous channel condition feedback message. The channel condition feedback message includes current channel condition information for the network. The proxy server sends one of an extended feedback report message and a short feedback report message to a media server based on the determining step. The short feedback report message includes at least a maximum transmission rate parameter for the multimedia session. The extended feedback report message includes at least information contained in the receiver report message. The extended feedback report message may, in addition, include the maximum transmission rate parameter for the multimedia session.
摘要翻译：在网络中为客户端动态设定多媒体会话的内容速率的方法中，代理服务器从网络控制器接收信道条件反馈消息，并确定是否从客户接收到接收者报告消息，因为最近以前的频道条件反馈消息。信道条件反馈消息包括用于网络的当前信道条件信息。代理服务器基于确定步骤向媒体服务器发送扩展反馈报告消息和短反馈报告消息之一。短反馈报告消息至少包括用于多媒体会话的最大传输速率参数。扩展反馈报告消息至少包括接收机报告消息中包含的信息。此外，扩展反馈报告消息可以包括用于多媒体会话的最大传输速率参数。

7. 发明授权

US08812673B2 Content rate control for streaming media servers 有权
标题翻译：流媒体服务器的内容速率控制
公开(公告)号：US08812673B2
公开(公告)日：2014-08-19
申请号：US11674842
申请日：2007-02-14
申请人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
发明人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
IPC分类号： G06F15/173 , G06F15/16
CPC分类号： H04L65/60 , H04L47/10 , H04L47/11 , H04L47/19 , H04L47/25 , H04L47/30 , H04L47/38 , H04L65/80 , H04N21/23805 , H04N21/2401 , H04N21/2402 , H04N21/6131 , H04W4/00
摘要： The present invention provides a method for content rate selection. The method includes selecting a content rate for play out of at least one frame transmitted from a media server to a media client via a wireless access network. Selection of the content rate is performed based on a statistical representation of a bandwidth available for transmission of frames.
摘要翻译：本发明提供一种内容速率选择方法。该方法包括：经由无线接入网络，从媒体服务器向媒体客户端选择播放从至少一帧发送的内容速率。基于可用于帧传输的带宽的统计表示来执行内容速率的选择。

8. 发明申请

US20080192711A1 PROXY-BASED SIGNALING ARCHITECTURE FOR STREAMING MEDIA SERVICES IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：用于在无线通信系统中流媒体服务的基于代码的信令架构
公开(公告)号：US20080192711A1
公开(公告)日：2008-08-14
申请号：US11674858
申请日：2007-02-14
申请人： KRISHNA BALACHANDRAN , Doru Calin , Eunyoung Kim , Kiran M. Rege
发明人： KRISHNA BALACHANDRAN , Doru Calin , Eunyoung Kim , Kiran M. Rege
IPC分类号： H04Q7/00
CPC分类号： H04L47/10 , H04L47/14 , H04L47/2416 , H04L47/263 , H04L47/30
摘要： The present invention provides a method involving a media server, a wireless access network, at least one media client, and a proxy server. The method includes accessing, at the proxy server, at least one message including information indicating impending establishment of a media session between the media server and said at least one media client. The method also includes providing, from the proxy server, information indicating the impending establishment of the media session and a request to receive feedback associated with the media session. The method further includes receiving, at the proxy server, feedback associated with the media session in response to providing the request to receive feedback associated with the media session.
摘要翻译：本发明提供一种涉及媒体服务器，无线接入网络，至少一个媒体客户端和代理服务器的方法。该方法包括在代理服务器处访问至少一个消息，其包括指示媒体服务器和所述至少一个媒体客户端之间的媒体会话即将建立的信息。该方法还包括从代理服务器提供指示媒体会话的即将建立的信息以及接收与媒体会话相关联的反馈的请求。该方法还包括响应于提供接收与媒体会话相关联的反馈的请求，在代理服务器处接收与媒体会话相关联的反馈。

9. 发明申请

US20100008332A1 Method for half-and full-duplex subscriber station operation in frequency division duplex systems 审中-公开
标题翻译：用于分频双工系统中半双工和全双工用户站操作的方法
公开(公告)号：US20100008332A1
公开(公告)日：2010-01-14
申请号：US12217867
申请日：2008-07-09
申请人： Krishna Balachandran , Doru Calin , Shyam P. Parekh , Ashok N. Rudrapatna
发明人： Krishna Balachandran , Doru Calin , Shyam P. Parekh , Ashok N. Rudrapatna
IPC分类号： H04J3/00
CPC分类号： H04L5/16 , H04L1/1671 , H04L5/0007 , H04L5/0044 , H04L5/0091 , H04L5/1469
摘要： The present invention provides a novel framing structure that can be used to smoothly evolve a Time Division Duplex (TDD) wireless communications technology to a Frequency Division Duplex wireless communications technology. A method for establishing the start time of an uplink frame that is offset in relation to a downlink frame by an allocation start time is provided. In addition, methods of allocating downlink and uplink resources for half-duplex and full frequency division duplex operation with adequate provisions for transmit-receive and receive-transmit time gaps are also provided.
摘要翻译：本发明提供了一种新颖的帧结构，其可用于将时分双工（TDD）无线通信技术平滑地演进到频分双工无线通信技术。提供了一种通过分配开始时间建立相对于下行链路帧偏移的上行链路帧的开始时间的方法。此外，还提供了用于半双工和全分频双工操作的下行链路和上行链路资源与发送接收和接收 - 发送时间间隔的适当规定的方法。

10. 发明授权

US08626943B2 Content ate selection for media servers with proxy-feedback-controlled frame transmission 有权
标题翻译：内容为具有代理反馈控制的帧传输的媒体服务器进行选择
公开(公告)号：US08626943B2
公开(公告)日：2014-01-07
申请号：US13064288
申请日：2011-03-16
申请人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
发明人： Krishna Balachandran , Doru Calin , Eunyoung Kim , Kiran M. Rege
IPC分类号： G06F15/16
CPC分类号： H04L65/605 , G06F15/16 , H04L65/4092 , H04L65/602 , H04L65/80
摘要： In a method for dynamically setting a content rate of a multimedia session for a client in a network, a proxy server receives a channel condition feedback message from a network controller and determines whether a receiver report message has been received from the client since a most recent previous channel condition feedback message. The channel condition feedback message includes current channel condition information for the network. The proxy server sends one of an extended feedback report message and a short feedback report message to a media server based on the determining step. The short feedback report message includes at least a maximum transmission rate parameter for the multimedia session. The extended feedback report message includes at least information contained in the receiver report message. The extended feedback report message may, in addition, include the maximum transmission rate parameter for the multimedia session.
摘要翻译：在网络中为客户端动态设定多媒体会话的内容速率的方法中，代理服务器从网络控制器接收信道条件反馈消息，并确定是否从客户接收到接收者报告消息，因为最近以前的频道条件反馈消息。信道条件反馈消息包括用于网络的当前信道条件信息。代理服务器基于确定步骤向媒体服务器发送扩展反馈报告消息和短反馈报告消息之一。短反馈报告消息至少包括用于多媒体会话的最大传输速率参数。扩展反馈报告消息至少包括接收机报告消息中包含的信息。此外，扩展反馈报告消息可以包括用于多媒体会话的最大传输速率参数。

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