公开(公告)号：US07330699B2

公开(公告)日：2008-02-12

申请号：US10723591

申请日：2003-11-26

申请人： Mooi Choo Chuah ,  Wei Luo

发明人： Mooi Choo Chuah ,  Wei Luo

IPC分类号： H04B17/00

CPC分类号： H04W72/005 ,  H04W52/327

摘要： Method for multicasting messages to users of a wireless communication system includes the steps of establishing a power ratio threshold for transmitting the messages, measuring respective power ratios of the users, comparing the established power ratio threshold to the measured power ratios, determining a first subset of the users and a second subset of the users based upon the measured power ratios and delivering the messages to the first subset of the plurality of users via a first transmission scheme. The first transmission scheme delivers the messages to all of the users of the first subset via a broadcast channel. The method also has a step of delivering the messages to the second subset of the users via a second transmission scheme. The second transmission scheme delivers the messages to each of the users of the second subset via respective dedicated channels.

摘要翻译： 向无线通信系统的用户组播消息的方法包括以下步骤：建立用于发送消息的功率比阈值，测量用户的各个功率比，将建立的功率比阈值与所测量的功率比进行比较，确定第一子集 所述用户和所述用户的第二子集基于所测量的功率比并且经由第一传输方案将所述消息递送到所述多个用户的所述第一子集。 第一传输方案经由广播信道将消息传递给第一子集的所有用户。 该方法还具有通过第二传输方案将消息传递给用户的第二子集的步骤。 第二传输方案经由相应的专用信道将消息传递给第二子集的每个用户。

公开(公告)号：US07324443B2

公开(公告)日：2008-01-29

申请号：US10172505

申请日：2002-06-17

申请人： Mooi Choo Chuah ,  Tingfang Ji ,  Paul A. Noel ,  Donna Michaels Sand ,  David Walter Vollman

发明人： Mooi Choo Chuah ,  Tingfang Ji ,  Paul A. Noel ,  Donna Michaels Sand ,  David Walter Vollman

IPC分类号： H04J3/26 ,  H04L12/66 ,  G06F15/173

CPC分类号： H04W28/06 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/1006 ,  H04L65/607 ,  H04L67/14 ,  H04L69/329 ,  H04M7/123 ,  H04M7/128 ,  H04W80/00

摘要： A method, template, protocol, apparatus, system, and computer software for implementing a binary protocol for session initiation in a wireless communications system. The method for creating, modifying or terminating an IP multimedia session among one or more binary session initiation protocol (B-SIP) entities includes providing a flexible template with at least one mandatory field and at least one optional field, wherein the flexible template has fixed and variable length fields, representing a message type with a template id, and maintaining session specific information in a cache. The message template for creating, modifying or terminating an IP multimedia session among one or more binary session initiation protocol (B-SIP) entities, includes at least one mandatory field and at least one optional field, at least one fixed length field and at least one variable length field, wherein each of said at least one variable length fields is preceded by a length field and each of said at least one optional fields is preceded by an identifier, wherein said at least one mandatory field precedes said at least one optional field and said at least one fixed length field precedes said at least one variable length field.

摘要翻译： 一种用于在无线通信系统中实现用于会话发起的二进制协议的方法，模板，协议，装置，系统和计算机软件。 用于在一个或多个二进制会话发起协议（B-SIP）实体之间创建，修改或终止IP多媒体会话的方法包括提供具有至少一个必填字段和至少一个可选字段的灵活模板，其中灵活模板具有固定 和可变长度字段，表示具有模板id的消息类型，并在缓存中维护会话特定信息。 用于在一个或多个二进制会话发起协议（B-SIP）实体之间创建，修改或终止IP多媒体会话的消息模板包括至少一个必填字段和至少一个可选字段，至少一个固定长度字段和至少一个固定长度字段 一个可变长度字段，其中所述至少一个可变长度字段中的每一个前面都有长度字段，并且所述至少一个可选字段中的每一个前面都有一个标识符，其中所述至少一个必填字段在所述至少一个可选字段之前 并且所述至少一个固定长度字段在所述至少一个可变长度字段之前。

公开(公告)号：US07143191B2

公开(公告)日：2006-11-28

申请号：US10172504

申请日：2002-06-17

申请人： Mooi Choo Chuah ,  Tingfang Ji ,  Subhasis Laha

发明人： Mooi Choo Chuah ,  Tingfang Ji ,  Subhasis Laha

IPC分类号： G06F15/16

CPC分类号： H04L65/1006 ,  H03M7/3088 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/1069 ,  H04L67/14 ,  H04L69/04 ,  H04L69/329

摘要： A method, apparatus, system, and computer software for compressing and decompressing a message for transmission. The method of compressing a text message for transmission may include parsing text strings and encoding numerical values with a binary representation and analyzing values of the text strings and populating a session specific codebook with partial strings from the values. The method of compressing a message for transmission may also include parsing the message with a template and generating at least one substring to be transmitted; parsing the at least one substring with entries in a session specific codebook and generating a first part of the compressed message; populating the session specific codebook with entries for unknown field values; parsing any unmatched substrings with entries from a first static dictionary and generating a second part of the compressed message; parsing any still unmatched substrings with entries from a second static dictionary and generating a third part of the compressed message; compressing a remainder of the substrings with a compression algorithm; and combining the first part, the second part, and the third part of the compressed message to obtain a compressed message for transmission.

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。

公开(公告)号：US06496491B2

公开(公告)日：2002-12-17

申请号：US09150403

申请日：1998-09-09

申请人： Mooi Choo Chuah ,  Girish Rai

发明人： Mooi Choo Chuah ,  Girish Rai

IPC分类号： H04Q700

CPC分类号： H04W36/0033 ,  H04L12/4633 ,  H04L29/06 ,  H04L45/00 ,  H04L63/0272 ,  H04L69/16 ,  H04L69/168 ,  H04L69/324 ,  H04L2012/5667 ,  H04Q11/0478 ,  H04W4/12 ,  H04W36/0011 ,  H04W40/36 ,  H04W76/22 ,  H04W80/04 ,  H04W88/14

摘要： Apparatus for transferring packet data incorporates a “hand-off” feature that allows the transfer of an existing PPP connection from one packet server to another packet server. Such a hand-off control message or call continue transaction can be initiated by any of the servers involved in the transactions. For instance, assume an initial arrangement where a point-to-point call is set up and in progress between a user and a private network via a first packet server (e.g., a first Serving LAC) and a second packet server (e.g., an Anchor LAC). If, for example, the user moves out of the region served by the first packet server into a region served by a third packet server (e.g., a second Serving LAC), then a hand-off control message transaction, according to the invention, is initiated. Either the second Serving LAC or the Anchor LAC may initiate the call continue transaction. Alternatively, radius servers respectively associated with the packet servers may be employed to perform the call continue transaction. Furthermore, assuming that a communication path is not yet established between the second packet server (e.g., Anchor LAC) and the third packet server (e.g., the second Serving LAC), a communication path (e.g., tunnel) set-up control message transaction may be performed concurrent with the call continue transaction. Still further, at least one packet server (e.g., the Anchor LAC) monitors state variables associated with the packet servers (e.g., the second Serving LAC and the private network) from which it receives packet data.

摘要翻译： 用于传送分组数据的装置包含允许将现有PPP连接从一个分组服务器传送到另一分组服务器的“切换”功能。 这种切换控制消息或呼叫继续事务可以由交易中涉及的任何服务器启动。 例如，假设一种初始安排，其中通过第一分组服务器（例如，第一服务LAC）和第二分组服务器（例如，第一服务LAC）在用户和专用网络之间建立并正在进行点对点呼叫 Anchor LAC）。 例如，如果用户从由第一分组服务器服务的区域移出到由第三分组服务器（例如，第二服务LAC）服务的区域中，则根据本发明的切换控制消息交易， 被启动。 第二服务LAC或锚定LAC可以发起呼叫继续交易。 或者，可以采用分组与分组服务器相关联的半径服务器来执行呼叫继续事务。 此外，假设在第二分组服务器（例如，锚点LAC）和第三分组服务器（例如，第二服务LAC）之间尚未建立通信路径，通信路径（例如，隧道）建立控制消息交易 可以与呼叫继续事务并发执行。 此外，至少一个分组服务器（例如，Anchor LAC）监视与其从其接收分组数据的分组服务器（例如，第二服务LAC和专用网络）相关联的状态变量。

公开(公告)号：US06285665B1

公开(公告)日：2001-09-04

申请号：US09083797

申请日：1998-05-22

申请人： Mooi Choo Chuah

发明人： Mooi Choo Chuah

IPC分类号： H04J100

CPC分类号： H04L47/10 ,  H04L43/00 ,  H04L47/14 ,  H04L47/26 ,  H04L47/286 ,  H04L47/30 ,  H04L47/32 ,  H04W36/16 ,  H04W52/10 ,  H04W52/50 ,  H04W88/08 ,  H04W92/10

摘要： The power level for uplink data transmission in a wireless communications network utilizing an on-demand multiple access method with a fair queuing service discipline (ODMAFQ) for efficient utilization of the limited bandwidth available in the wireless network is established curing the initial access request message. The power level in a wireless network having a base station and several remote hosts is established by first transmitting a short connection request message to the base station from one of the remote hosts at an initial power level that is set relative to the nominal open loop power level. If the first remote host's transmission is unsuccessful, the power level is incremented by a power increment amount that may be predetermined, and the steps of transmitting and incrementing are repeated until the transmission from remote host to base station is successful. Finally, the power level at which transmission is successful is stored and used for further data transmission between that particular remote host and the wireless network base station.

摘要翻译： 利用具有用于有效利用无线网络中可用的有限带宽的公平排队服务纪律（ODMAFQ）的无线通信网络中的上行链路数据传输的功率级别被建立固化初始访问请求消息。 具有基站和多个远程主机的无线网络中的功率电平通过首先从远程主机之一以相对于标称开环功率设置的初始功率电平向基站发送短连接请求消息来建立 水平。 如果第一远程主机的传输不成功，则功率电平增加可以预定的功率增量量，并且重复发送和递增的步骤，直到从远程主机到基站的传输成功。 最后，传输成功的功率电平被存储并用于该特定远程主机与无线网络基站之间的进一步的数据传输。

公开(公告)号：US07349635B2

公开(公告)日：2008-03-25

申请号：US10725342

申请日：2003-12-01

申请人： Mooi Choo Chuah ,  Randy C. Giles ,  Xiang Liu ,  Muhammad A. Qureshi

发明人： Mooi Choo Chuah ,  Randy C. Giles ,  Xiang Liu ,  Muhammad A. Qureshi

IPC分类号： H04B10/00 ,  H04B10/04

CPC分类号： H04B10/1125

摘要： Method and apparatus for routing messages in a network includes first filters to provide frequency-based message signals converted from an optically-based signal and mixers adapted to mix the frequency-based message signals with sub-carriers to generate frequency-based sub-carrier modulated message signals. A frequency generator connected to the mixers provides the sub-carriers to the mixers and a combiner connected to the mixers combines the frequency-based sub-carrier modulated message signals. Second filters connected to the combiner receive and group the frequency-based sub-carrier modulated message signals. Optical transmitters connected to second filters optically convert and transmit the frequency-based sub-carrier modulated message signals. The frequency generator generates and applies a particular sub-carrier frequency to one of the mixers according to information contained in the frequency-based message signal. The information is encoded into the frequency-based message signal via a generalized MPLS (GMPLS) label contained in a header portion of the frequency-based message signal.

摘要翻译： 用于在网络中路由消息的方法和装置包括：第一滤波器，用于提供从基于光学的信号转换的基于频率的消息信号，以及适于将基于频率的消息信号与子载波混合的混频器，以产生基于频率的子载波调制 消息信号。 连接到混频器的频率发生器将副载波提供给混频器，并且连接到混频器的组合器组合基于频率的子载波调制消息信号。 连接到组合器的第二滤波器接收并分组基于频率的子载波调制消息信号。 连接到第二滤波器的光发射机光学地转换和发射基于频率的子载波调制消息信号。 频率发生器根据包含在基于频率的消息信号中的信息产生特定的副载波频率到一个混频器。 该信息通过包含在基于频率的消息信号的报头部分中的广义MPLS（GMPLS）标签被编码到基于频率的消息信号中。

公开(公告)号：US07171160B2

公开(公告)日：2007-01-30

申请号：US10609776

申请日：2003-06-30

申请人： Mooi Choo Chuah ,  Kameswara Rao Medapalli

发明人： Mooi Choo Chuah ,  Kameswara Rao Medapalli

IPC分类号： H04B15/00

CPC分类号： H04W16/04 ,  H04W16/10

摘要： An advance over the prior art is achieved through an efficient method for the dynamic selection of frequencies with low occupancy in a manner that results in minimizing the search for such frequencies and the risk of a large of number of nodes choosing the same frequency. A method for dynamically selecting the frequencies according to the invention includes the following parts. A channel loading indicator that determines if the mobile node needs to look for a new channel. A channel search algorithm that quickly determines the new channel to be used. A tracking algorithm that remembers the channels that were most recently determined to be loaded and hence should be avoided in the near future. In one embodiment of the invention a method of selecting frequencies for use by a device in a wireless communications network is presented. The method includes the steps of monitoring channel usage of given frequencies to determine loaded channels based on whether an associated channel usage threshold has been reached and, if the channel usage threshold has been reached, determining whether to switch from a loaded channel to another channel based on a probability function.

摘要翻译： 现有技术的进步是通过一种用于动态选择具有低占用率的频率的有效方法来实现的，该方式导致最小化对这种频率的搜索和选择相同频率的大量节点的风险。 根据本发明的用于动态选择频率的方法包括以下部分。 确定移动节点是否需要寻找新信道的信道加载指示符。 快速确定要使用的新频道的频道搜索算法。 跟踪算法记住最近确定要加载的通道，因此应该在不久的将来避免。 在本发明的一个实施例中，提出了一种选择频率供无线通信网络中的设备使用的频率的方法。 该方法包括以下步骤：基于是否已经达到相关联的信道使用阈值来监测给定频率的信道使用以确定加载的信道，并且如果已经达到信道使用阈值，则确定是否从加载的信道切换到另一信道 在概率函数上。

公开(公告)号：US07096039B2

公开(公告)日：2006-08-22

申请号：US10185993

申请日：2002-06-28

申请人： Mooi Choo Chuah ,  Enrique Hernandez-Valencia ,  Wing Cheong Lau

发明人： Mooi Choo Chuah ,  Enrique Hernandez-Valencia ,  Wing Cheong Lau

IPC分类号： H04M1/00

CPC分类号： H04L12/189 ,  H04L12/1836 ,  H04L49/201 ,  H04L49/205 ,  H04L49/351 ,  H04W92/12

摘要： The present invention sets forth a methodology for providing improved downlink backhaul services from a radio network controller (RNC) to a plurality of base stations via a backhaul network that provides Ethernet services. The Ethernet services are provided by a group of provider edge (PE) switches and regular label switch routers (referred to as P switches). Base stations within the network are assigned into clusters, each of the clusters having a cluster ID. The RNC transmits packets to a given switch or switches out on the network based on a cluster ID included within the transmitted packet. The communications traffic is then multicast from at least one last hop switch in the network to candidate base stations on the basis of the cluster ID and an active set within the cluster. Advantageously, the clusters act as subgroups for more easily directing the transmission of the backhaul multicast traffic. Significant advantages are realized through use of the present invention, including the ability to allow faster and smoother handoffs, as well as backhaul bandwidth savings since intelligence regarding cell switching is extended out at a point farther along the network than was previously enabled.

摘要翻译： 本发明提出了一种用于通过提供以太网服务的回程网络从无线电网络控制器（RNC）向多个基站提供改进的下行链路回程业务的方法。 以太网服务由一组提供商边缘（PE）交换机和常规标签交换路由器（称为P交换机）提供。 网络内的基站被分配成簇，每个簇具有簇ID。 RNC根据发送的分组中包含的集群ID，将数据包发送给给定的交换机，或者在网络上进行切换。 然后，基于集群ID和集群内的活动集，将通信业务从网络中的至少一个最后一跳交换机组播到候选基站。 有利地，集群充当用于更容易地指导回程多播业务的传输的子组。 通过使用本发明，可以实现显着的优点，包括允许更快和更平滑的切换以及回程带宽节省的能力，因为关于小区切换的智能在比以前启用的网络更远一点处被扩展。

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.