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1. 发明授权

US06674765B1 Methods and apparatus for random chip delay access priority in a communications system 有权
标题翻译：通信系统中随机片段延迟访问优先级的方法和装置
公开(公告)号：US06674765B1
公开(公告)日：2004-01-06
申请号：US09172493
申请日：1998-10-14
申请人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
发明人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
IPC分类号： H04L1243
CPC分类号： H04W74/0875 , H04W84/04 , H04W88/08
摘要： The present invention provides methods and apparatus for providing access priority in a MAC protocol of a communications system such as, for example, with respect to UMTS RACH. Particularly, the invention introduces several access priority methodologies including: (i) random chip delay access priority (RCDAP); (ii) random backoff based access priority (RBBAP); (iii) variable logical channel based access priority (VLCAP); (iv) UMTS-specific variable logical channel based access priority (VLCAP′); (v) probability based access priority (PBAP); and (vi) retransmission based access priority (REBAP). Each methodology associates some parameter or parameters to access priority classes in order to influence the likelihood of a remote terminal completing a successful access request to a base station.
摘要翻译：本发明提供了用于在通信系统的MAC协议中提供访问优先级的方法和装置，例如关于UMTS RACH。特别地，本发明引入了几种接入优先级方法，包括：（i）随机码片延迟接入优先级（RCDAP）; （ii）基于随机回退的访问优先级（RBBAP）; （iii）基于可变逻辑信道的接入优先级（VLCAP）; （iv）基于UMTS的可变逻辑信道接入优先级（VLCAP'）; （v）基于概率的访问优先级（PBAP）; 和（vi）基于重传的访问优先级（REBAP）。每个方法将一些参数或参数相关联以访问优先级等级，以便影响远程终端完成对基站的成功访问请求的可能性。

2. 发明授权

US06594240B1 Methods and apparatus for random backoff based access priority in a communications system 有权
标题翻译：在通信系统中基于随机回退的访问优先级的方法和装置
公开(公告)号：US06594240B1
公开(公告)日：2003-07-15
申请号：US09172494
申请日：1998-10-14
申请人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
发明人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
IPC分类号： H04R700
CPC分类号： H04W74/085 , H04W74/0875 , H04W84/04 , H04W88/08
摘要： The present invention provides methods and apparatus for providing access priority in a MAC protocol of a communications system such as, for example, with respect to UMTS RACH. Particularly, the invention introduces several access priority methodologies including: (i) random chip delay access priority (RCDAP); (ii) random backoff based access priority (RBBAP); (iii) variable logical channel based access priority (VLCAP); (iv) UMTS-specific variable logical channel based access priority (VLCAP′); (v) probability based access priority (PBAP); and (vi) retransmission based access priority (REBAP). Each methodology associates some parameter or parameters to access priority classes in order to influence the likelihood of a remote terminal completing a successful access request to a base station.
摘要翻译：本发明提供了用于在通信系统的MAC协议中提供访问优先级的方法和装置，例如关于UMTS RACH。特别地，本发明引入了几种接入优先级方法，包括：（i）随机码片延迟接入优先级（RCDAP）; （ii）基于随机回退的访问优先级（RBBAP）; （iii）基于可变逻辑信道的接入优先级（VLCAP）; （iv）基于UMTS的可变逻辑信道接入优先级（VLCAP'）; （v）基于概率的访问优先级（PBAP）; 和（vi）基于重传的访问优先级（REBAP）。每个方法将一些参数或参数相关联以访问优先级等级，以便影响远程终端完成对基站的成功访问请求的可能性。

3. 发明授权

US06400695B1 Methods and apparatus for retransmission based access priority in a communications system 有权
标题翻译：在通信系统中基于重传的接入优先级的方法和装置
公开(公告)号：US06400695B1
公开(公告)日：2002-06-04
申请号：US09172495
申请日：1998-10-14
申请人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
发明人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
IPC分类号： H04Q700
CPC分类号： H04W74/0875 , H04W84/04 , H04W88/08
摘要： The present invention provides methods and apparatus for providing access priority in a MAC protocol of a communications system such as, for example, with respect to UMTS RACH. Particularly, the invention introduces several access priority methodologies including: (i) random chip delay access priority (RCDAP); (ii) random backoff based access priority (RBBAP); (iii) variable logical channel based access priority (VLCAP); (iv) UMTS-specific variable logical channel based access priority (VLCAP′); (v) probability based access priority (PBAP); and (vi) retransmission based access priority (REBAP). Each methodology associates some parameter or parameters to access priority classes in order to influence the likelihood of a remote terminal completing a successful access request to a base station.
摘要翻译：本发明提供了用于在通信系统的MAC协议中提供访问优先级的方法和装置，例如关于UMTS RACH。特别地，本发明引入了几种接入优先级方法，包括：（i）随机码片延迟接入优先级（RCDAP）; （ii）基于随机回退的访问优先级（RBBAP）; （iii）基于可变逻辑信道的接入优先级（VLCAP）; （iv）基于UMTS的可变逻辑信道接入优先级（VLCAP'）; （v）基于概率的访问优先级（PBAP）; 和（vi）基于重传的访问优先级（REBAP）。每个方法将一些参数或参数相关联以访问优先级等级，以便影响远程终端完成对基站的成功访问请求的可能性。

4. 发明授权

US06757293B1 Methods and apparatus for providing short RACH frames for fast latency 有权
标题翻译：用于提供短RACH帧以提供快速延迟的方法和装置
公开(公告)号：US06757293B1
公开(公告)日：2004-06-29
申请号：US09203932
申请日：1998-12-02
申请人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
发明人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
IPC分类号： H04J316
CPC分类号： H04W74/0833 , A41C3/10 , A61B90/02
摘要： The present invention provides an improved RACH access burst arrangement and frame structure. That is, the invention provides methods and apparatus for supporting more than one access burst length in the UMTS access channel structure. Preferably, two access burst lengths are supported, e.g., 5 ms and 10 ms. Such an arrangement is advantageous in applications where it is beneficial to have fast access latency such as, for example, voice or other forms of real-time traffic. Also, the invention provides methods and apparatus for supporting multiple frame sizes. It is to be appreciated that further enhancement to access latency can be obtained by having the UMTS physical layer support multiple frame sizes. The access burst signal transmitted by a remote terminal over the RACH may be an access request or data packets in the case where the RACH is being utilized for UMTS short message services.
摘要翻译：本发明提供了一种改进的RACH接入突发布置和帧结构。也就是说，本发明提供了用于在UMTS接入信道结构中支持多于一个接入突发长度的方法和装置。优选地，支持两个接入突发长度，例如5ms和10ms。这样的布置在有利于具有快速访问延迟（例如语音或其他形式的实时业务）的应用中是有利的。此外，本发明提供了用于支持多个帧大小的方法和装置。应当理解，可以通过使UMTS物理层支持多个帧大小来获得对访问延迟的进一步增强。在RACH用于UMTS短消息服务的情况下，远程终端通过RACH发送的接入脉冲串信号可以是接入请求或数据分组。

5. 发明授权

US06693952B1 Dynamic code allocation for downlink shared channels 有权
标题翻译：下行链路共享信道的动态代码分配
公开(公告)号：US06693952B1
公开(公告)日：2004-02-17
申请号：US09268799
申请日：1999-03-16
申请人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
发明人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
IPC分类号： H04B169
CPC分类号： H04J13/0044 , H04J13/20
摘要： In a Universal Mobile Telecommunications System (UMTS) based wireless system, a channelization code-tree is partitioned into two sets: a permanent set and shared a shared set. Those codes in the permanent set are assigned to low data rate users for the duration of a session, or connection. Those codes in the shared set are assigned to high data rate users on a frame-by-frame basis using a downlink shared (DSCH) channel. The partition boundary between the permanent set and the shared set can be dynamically shifted based on traffic conditions.
摘要翻译：在基于通用移动电信系统（UMTS）的无线系统中，信道化码树被分为两组：永久集合并共享共享集。永久设置中的代码在会话或连接的持续时间内被分配给低数据速率用户。共享集中的这些代码使用下行链路共享（DSCH）信道逐帧地分配给高数据速率用户。永久集和共享集之间的分区边界可以根据流量条件动态移位。

6. 发明授权

US06587672B1 Methods and apparatus for enhanced power ramping via multi-threshold detection 失效
标题翻译：通过多阈值检测增强功率斜坡的方法和装置
公开(公告)号：US06587672B1
公开(公告)日：2003-07-01
申请号：US09203924
申请日：1998-12-02
申请人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
发明人： Mooi Choo Chuah , On-Ching Yue , Qinqing Zhang
IPC分类号： H04B100
CPC分类号： H04W52/362 , H04W52/50
摘要： The present invention provides a method for use in a UMTS receiver of detecting a signal transmitted by a UMTS transmitter which includes determining whether the signal is greater than or equal to at least a first power threshold value when the signal is below an initial detection threshold value, and informing the transmitter when the signal is greater than or equal to the first power threshold value such that the transmitter can increase a signal strength of the signal by a first predetermined amount and re-transmit. In another aspect of the invention, a method for use in a UMTS transmitter of power ramping a signal transmitted by the transmitter and received by a UMTS receiver includes increasing a signal strength of the signal by a first predetermined amount when informed by the receiver that the signal is greater than or equal to a first power threshold value but below an initial detection threshold value, and re-transmitting the signal.
摘要翻译：本发明提供了一种在UMTS接收机中用于检测由UMTS发射机发射的信号的方法，该方法包括当信号低于初始检测阈值时确定信号是否大于或等于至少第一功率阈值并且当所述信号大于或等于所述第一功率阈值时通知所述发射机，使得所述发射机可以将所述信号的信号强度增加第一预定量并重新发射。在本发明的另一方面，一种用于在UMTS发射机中使用由发射机发送并由UMTS接收机接收的信号的功率的方法包括：当由接收机通知信号时，将信号的信号强度增加第一预定量，信号大于或等于第一功率阈值但低于初始检测阈值，并且重新发送信号。

7. 发明授权

US06704311B1 Application-level switching server for internet protocol (IP) based networks 有权
标题翻译：基于互联网协议（IP）的网络的应用层交换服务器
公开(公告)号：US06704311B1
公开(公告)日：2004-03-09
申请号：US09344781
申请日：1999-06-25
申请人： Mooi Choo Chuah , Bharat Tarachand Doshi , Anlu Yan , On-Ching Yue
发明人： Mooi Choo Chuah , Bharat Tarachand Doshi , Anlu Yan , On-Ching Yue
IPC分类号： H04L1256
CPC分类号： H04L65/4084 , H04L12/6418 , H04L29/06027 , H04L65/608 , H04L67/00 , H04L69/16 , H04L69/329
摘要： An Internet Protocol (IP)-based network incorporates an application level switching server and a number of packet endpoints. A packet endpoint multiplexes application sessions destined for different packet endpoints into one multiplexed session that is terminated with the application level switching server. The latter extracts each application session (or packets associated therewith) and repackages, or switches, them into other multiplexed sessions such that at least two switched packets are transmitted to different packet endpoints. The multiplexed sessions utilize either RTP/UDP/IP or UDP/IP encapsulation.
摘要翻译：基于互联网协议（IP）的网络集成了应用级交换服务器和多个分组端点。分组端点将发往不同分组端点的应用会话复用到由应用级交换服务器终止的一个多路复用会话中。后者提取每个应用程序会话（或与之相关的数据包）和重新包装，或者将它们切换到其他复用的会话中，使得至少两个交换分组被发送到不同的分组端点。复用的会话使用RTP / UDP / IP或UDP / IP封装。

8. 发明授权

US08201252B2 Methods and devices for providing distributed, adaptive IP filtering against distributed denial of service attacks 有权
标题翻译：为分布式拒绝服务攻击提供分布式自适应IP过滤的方法和设备
公开(公告)号：US08201252B2
公开(公告)日：2012-06-12
申请号：US10232660
申请日：2002-09-03
申请人： Mooi Choo Chuah , Wing Cheong Lau , On-Ching Yue
发明人： Mooi Choo Chuah , Wing Cheong Lau , On-Ching Yue
IPC分类号： G06F11/00
CPC分类号： H04L47/10 , H04L47/11 , H04L47/2441 , H04L47/286 , H04L47/32 , H04L63/0236 , H04L63/1458
摘要： The present invention provides systems and methods for providing distributed, adaptive IP filtering techniques used in detecting and blocking IP packets involved in DDOS attacks through the use of Bloom Filters and leaky-bucket concepts to identify “attack” flows. In an exemplary embodiment of the present invention, a device tracks certain criteria of all IP packets traveling from IP sources outside a security perimeter to network devices within the security perimeter. The present invention examines the criteria and places them in different classifications in a uniformly random manner, estimates the amount of criteria normally received and then determines when a group of stored classifications is too excessive to be considered normal for a given period of time. After the device determines the criteria that excessive IP packets have in common, the device then determines rules to identify the packets that meet such criteria and filters or blocks so identified packets.
摘要翻译：本发明提供了用于提供分布式自适应IP过滤技术的系统和方法，所述技术用于通过使用Bloom Filter和泄漏桶概念识别“攻击”流来检测和阻止涉及DDOS攻击的IP分组。在本发明的示例性实施例中，设备跟踪从安全边界之外的IP源传播到安全范围内的网络设备的所有IP分组的某些标准。本发明以均匀随机的方式检查标准并将它们置于不同的分类中，估计正常接收的标准的数量，然后确定一组存储的分类何时太过分，以至于在给定的时间段内不被认为是正常的。在设备确定过多的IP数据包具有共同之处的标准之后，设备然后确定规则以识别符合这些标准的数据包，并过滤或阻止所识别的数据包。

9. 发明授权

US06993021B1 Lightweight internet protocol encapsulation (LIPE) scheme for multimedia traffic transport 有权
标题翻译：用于多媒体流量传输的轻量级互联网协议封装（LIPE）方案
公开(公告)号：US06993021B1
公开(公告)日：2006-01-31
申请号：US09264053
申请日：1999-03-08
申请人： Mooi Choo Chuah , Wolfgang Fleischer , Anlu Yan , On-Ching Yue
发明人： Mooi Choo Chuah , Wolfgang Fleischer , Anlu Yan , On-Ching Yue
IPC分类号： H04L12/56
CPC分类号： H04L65/607 , H04L29/06 , H04L29/06027 , H04L65/608 , H04L65/80 , H04L69/04 , H04L69/32
摘要： A packet encapsulation scheme for multiplexing application sessions—Lightweight IP Encapsulation (LIPE)—is described. An LIPE packet comprises at least one multiplexing header (NH) and associated multimedia data packet (MDP). The LIPE packet uses UDP/IP as transport. An MH field further comprises a 16-bit a user identifier (UID) field, an 11 bit length indicator (LNG) field, a 1 bit “more” (M) field and an optional payload type/class of service (PT/CoS) field comprising 8 bits.
摘要翻译：描述了用于复用应用会话的轻量级IP封装（LIPE）的分组封装方案。 LIPE分组包括至少一个复用报头（NH）和相关联的多媒体数据分组（MDP）。 LIPE数据包使用UDP / IP作为传输。 MH字段还包括16位用户标识符（UID）字段，11位长度指示符（LNG）字段，1比特“更多”（M）字段和可选的有效载荷类型/服务等级（PT / CoS ）字段包括8位。

10. 发明授权

US07023884B2 Clock offset estimation with bias correction 有权
公开(公告)号：US07023884B2
公开(公告)日：2006-04-04
申请号：US09740252
申请日：2000-12-19
申请人： Mooi Choo Chuah , Daniel R. Jeske , Muralidhran S. Kodialam , Ashwin Sampath , Anlu Yan , On-Ching Yue
发明人： Mooi Choo Chuah , Daniel R. Jeske , Muralidhran S. Kodialam , Ashwin Sampath , Anlu Yan , On-Ching Yue
IPC分类号： H04J3/06
CPC分类号： H04J3/0667 , G06F1/14
摘要： A new algorithm for clock offset estimation for resources distributed across a network (such as the Internet). By exchanging a sequence of time-stamped messages between pairs of network nodes and separately estimating variable delays for each message direction, present inventive embodiments provide estimates for clock offset between node pairs and the bias of such estimates, thereby to permit more accurate correction. Present inventive algorithms operate in a variety of peer and server network configurations while providing significant improvement in convergence speed and accuracy.

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