Binary protocol for session initiation in a wireless communications system
    1.
    发明授权
    Binary protocol for session initiation in a wireless communications system 失效
    用于无线通信系统中会话发起的二进制协议

    公开(公告)号:US07324443B2

    公开(公告)日:2008-01-29

    申请号:US10172505

    申请日:2002-06-17

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

    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。

    Transmission methods for communication systems supporting a multicast mode
    2.
    发明授权
    Transmission methods for communication systems supporting a multicast mode 有权
    支持组播模式的通信系统的传输方式

    公开(公告)号:US07894468B2

    公开(公告)日:2011-02-22

    申请号:US10391766

    申请日:2003-03-20

    IPC分类号: H04L12/403 H04L12/42

    摘要: Transmission methods for multicast messages and for signaling message responses thereto in communication systems supporting a multicast mode provide that a number of retransmissions of a multicast message may be changed based on a number of receivers of the message. Signaling messages to the multicast message may be transmitted in response to a fixed number of multicast message transmissions, and receivers that have not received the multicast message after the fixed number of transmissions may request further retransmissions up to an additional given number of times. Further, signaling messages may be transmitted at different times or staggered based on a radio condition of the receivers. For example, a first multicast message may be transmitted, and responses from groups of receivers may be listened to for a given period, after which one of a next multicast message and a portion of the first multicast message may be transmitted to the groups.

    摘要翻译: 支持多播模式的通信系统中的组播消息和用于信令消息响应的传输方法提供了可以基于消息的接收者的数量来改变多播消息的重发次数。 可以响应于固定数量的多播消息传输来发送对多播消息的信令消息,并且在固定数量的传输之后尚未接收到多播消息的接收机可以请求进一步重传直到另外给定次数。 此外,信令消息可以在不同时间发送或基于接收机的无线电条件交错。 例如,可以发送第一多播消息,并且可以在给定时间段内收听来自接收者组的响应,之后可以将下一个多播消息和第一组播消息的一部分发送到组。

    Protocol message compression in a wireless communications system

    公开(公告)号:US07143191B2

    公开(公告)日:2006-11-28

    申请号:US10172504

    申请日:2002-06-17

    IPC分类号: G06F15/16

    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.

    Dynamic access priority scheme
    4.
    发明授权
    Dynamic access priority scheme 有权
    动态访问优先级方案

    公开(公告)号:US07733896B2

    公开(公告)日:2010-06-08

    申请号:US10222785

    申请日:2002-08-19

    CPC分类号: H04W74/0875

    摘要: In the dynamic access priority method, priority classes with different backoff delays are used to prioritize random access over shared channels and to reduce collision in the presence of a surge of random access requests. Service class information for a plurality of service classes is stored at user equipment. The service class information for a service class includes at least one of a maximum and a minimum back off value; the maximum back off value being indicative of a maximum back off interval and the minimum back off value being indicative of a minimum back off interval. At least one of a maximum and a minimum back off value is determined based on a selected service class of the user equipment, and a back off interval is determined based on the determined back off value. The back off interval indicates a period of time the user equipment waits before the user equipment attempts a transmission.

    摘要翻译: 在动态访问优先级方法中,使用具有不同退避延迟的优先级分类来优先分配共享信道上的随机访问,并在存在浪涌的随机访问请求的情况下减少冲突。 多个服务等级的服务等级信息存储在用户设备中。 服务类的服务等级信息包括最大和最小退避值中的至少一个; 最大后退值指示最大后退间隔,最小后退值指示最小后退间隔。 基于所选择的用户设备的服务类别来确定最大和最小退避值中的至少一个,并且基于所确定的退避值来确定后退间隔。 后退间隔表示用户设备尝试传输之前等待的时间段。

    Sender-initiated recovery algorithm (SIRA) for the layer 2 tunneling protocol (L2TP)
    6.
    发明授权
    Sender-initiated recovery algorithm (SIRA) for the layer 2 tunneling protocol (L2TP) 失效
    用于第2层隧道协议(L2TP)的发送方发起的恢复算法(SIRA)

    公开(公告)号:US07085273B1

    公开(公告)日:2006-08-01

    申请号:US09349571

    申请日:1999-07-08

    申请人: Mooi Choo Chuah

    发明人: Mooi Choo Chuah

    IPC分类号: H04L1/18

    摘要: A Layer 2 Tunneling Protocol (L2TP) performs a sender initiated recovery algorithm (SIRA) upon receiving, from an L2TP receiver, a predefined number of packets including the same “next received” (Nr) sequence number. The L2TP sender transmits a payload message that includes the “Reset Sr” (R-bit) indicator, which resets the value for Nr (at the receiver) to either just beyond the first missing packet or to the current send sequence number of the sender.

    摘要翻译: 第二层隧道协议(L2TP)在从L2TP接收机接收包括相同“下一个接收”(Nr)序列号的预定数量的分组时执行发送方发起的恢复算法(SIRA)。 L2TP发送方发送一个包含“复位Sr”(R-bit)指示符的有效负载消息,该指示器将Nr(在接收器)的值重置为超出第一个丢失数据包或发送方的当前发送序列号 。

    Application-level switching server for internet protocol (IP) based networks
    7.
    发明授权
    Application-level switching server for internet protocol (IP) based networks 有权
    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

    IPC分类号: H04L1256

    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。

    Proving quality of service in layer two tunneling protocol networks
    8.
    发明授权
    Proving quality of service in layer two tunneling protocol networks 有权
    在第二层隧道协议网络中验证服务质量

    公开(公告)号:US06654808B1

    公开(公告)日:2003-11-25

    申请号:US09285817

    申请日:1999-04-02

    申请人: Mooi Choo Chuah

    发明人: Mooi Choo Chuah

    IPC分类号: G06F1516

    摘要: New Attribute Value Pairs (AVP)s are defined for use in the L2TP control messages for setting up a call. In particular, an L2TP Incoming-Call-Request (ICRQ) or Outgoing-Call-Request (OCRQ) message includes a QoS_Request AVP, which includes a field for defining the number of classes of service within the call. In another embodiment, a new QoS_Request extension and a new QoS_Reply extension are defined for use in Mobile IP networks.

    摘要翻译: 新的属性值对(AVP)被定义为用于设置呼叫的L2TP控制消息。 特别地,L2TP进入呼叫请求(ICRQ)或出局呼叫请求(OCRQ)消息包括QoS_Request AVP,其包括用于定义呼叫中的服务等级数量的字段。 在另一个实施例中,新的QoS_Request扩展和新的QoS_Reply扩展被定义为用于移动IP网络。

    Method for bandwidth sharing in a multiple access system for communications networks

    公开(公告)号:US06327254B1

    公开(公告)日:2001-12-04

    申请号:US09083675

    申请日:1998-05-22

    申请人: Mooi Choo Chuah

    发明人: Mooi Choo Chuah

    IPC分类号: H04J316

    摘要: A method for data transmission in a wireless communication network utilizes an on-demand multiple access method with a fair queuing service discipline for efficient utilization of the limited bandwidth available in the network by sharing bandwidth among the remote hosts. In one embodiment, the base station broadcasts the system virtual time and the assigned shares of service classes to each of the wireless remotes. Each remote host computes its own service tag and reports it to the base station, which assigns transmit permits based on the service tag values and the available data slots. If a packet is lost or in error, the sending remote recomputes the service tag values of all its queued packets, including the packet whose transmission failed. Alternatively, the remote informs the base station of its queue size and the base station computes service tags for each remote based on the service shares of the remote and the available data slots. If a packet is lost or in error, the base station recomputes the service tag values for that remote host based on the current system virtual time. In an alternate embodiment, the AP or wireless node maintains a packet queue and a head-of-line tag. If a packet is lost, only the head-of-line tag needs to be changed. Once the head-of-line packet has been transmitted successfully, the rest of the queued packets will automatically receive the correct tag, the recomputed head-of-line tag plus appropriate increments. For half-duplex, both the uplink and downlink queues at the access points are managed as if there is only one system virtual time. For full-duplex, separate system virtual times for the uplink and the downlink traffic may be used. Remotes may also be divided into one or more separate groups, with each group having a different priority and receiving a different system virtual time. Service tags of all other remotes remain unaffected by the retransmission of a packet from any particular remote, meaning that the QoS experienced by the other remotes does not suffer.

    Method and apparatus for adjustable QoS based admission control and scheduling WLANs
    10.
    发明授权
    Method and apparatus for adjustable QoS based admission control and scheduling WLANs 失效
    可调节基于QoS的准入控制和调度WLAN的方法和装置

    公开(公告)号:US07388838B2

    公开(公告)日:2008-06-17

    申请号:US10652277

    申请日:2003-08-29

    IPC分类号: H04L12/26

    CPC分类号: H04W28/24 H04W72/1247

    摘要: An advance over the prior art is achieved through an efficient method for an admission control algorithm and a scheduling mechanism that complement each other in providing the following three classes of service. A first class of service is termed Class 1 where users specify a nominal amount of bandwidth desired. A second, lower tier service class is termed Class 2, wherein users specify a nominal and minimum amount of bandwidth desired when entering into a network connection. A third server class is Class 3, where Class 3 users are treated as best effort users. For Class 1 users the methodology of the present invention provides a guaranteed nominal amount of bandwidth. The admission control procedure ensures that Class 1 users are admitted only if resources exist to satisfy the nominal bandwidth requirements of the Class 1 users. Class 2 users are admitted if resources exist to satisfy the minimum bandwidth requirements of the user. Class 2 users are served with a bandwidth of up to their nominal bandwidths if there is capacity left after serving the Class 1 users with their nominal capacities. Class 3 users are served only if the Class 2 users have received their nominal bandwidths.

    摘要翻译: 通过用于准入控制算法和调度机制的有效方法来实现现有技术的进步,所述准入控制算法和调度机制在提供以下三类服务时相互补充。 第一类服务被称为1类,用户指定所需的额定带宽量。 第二个较低级别的服务类称为2类,其中用户在进入网络连接时指定所需的标称和最小带宽量。 第三个服务器类是Class 3,其中Class 3用户被视为尽力而为的用户。 对于1类用户,本发明的方法提供了有保证的标称带宽量。 接纳控制程序确保只有在存在资源以满足1类用户的标称带宽要求的情况下才允许1类用户。 如果存在资源以满足用户的最低带宽要求,则允许2类用户使用。 如果在服务具有标称容量的Class 1用户之后剩余容量,则Class 2用户的带宽可达到其标称带宽。 仅当Class 2用户已经收到其标称带宽时才能使用3级用户。