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1. 发明授权

US09973529B1 Communications methods, systems and apparatus for protecting against denial of service attacks 有权
公开(公告)号：US09973529B1
公开(公告)日：2018-05-15
申请号：US15016157
申请日：2016-02-04
申请人： Sonus Networks, Inc.
发明人： Shaun Jaikarran Bharrat , Tolga Asveren , Justin Hart
IPC分类号： H04L29/06
CPC分类号： H04L63/1458 , H04L63/1416
摘要： The present invention relates to methods, systems and apparatus for mitigating denial of service attacks. One exemplary embodiment in accordance with the invention is a method of operating a communication system including the steps of receiving at a first device packets of a first packet flow; sending, from the first device, control information to a switch through which packets of the first packet flow pass or to a control device which controls the switch, the control information including a mask corresponding to a range of expected packet values to be used for determining which packets in the first packet flow should be dropped.

2. 发明申请

US20170180484A1 METHODS AND APPARATUS FOR MANAGING THE USE OF IP ADDRESSES 有权
公开(公告)号：US20170180484A1
公开(公告)日：2017-06-22
申请号：US15015290
申请日：2016-02-04
申请人： Sonus Networks, Inc.
发明人： Tolga Asveren , Nagesh Kumar Bollapalli
IPC分类号： H04L29/08 , H04L29/06 , H04L29/12
CPC分类号： H04L67/141 , H04L61/2514 , H04L61/2517 , H04L61/255 , H04L61/2564 , H04L61/2575 , H04L61/2589 , H04L65/1006 , H04L65/1069
摘要： The present invention relates to communications methods, apparatus and systems for efficiently managing NAPT bindings and mappings. An exemplary embodiment of operating a communication system includes the steps of (i) receiving, at a real-time communications entity, a media session offer from a device, (ii) transmitting, from the communications entity to a Network Address and Port Translation entity (NAPT), a request signal to allocate a public Internet Protocol (IP) address and port number pair corresponding to an interface on the NAPT for the session; (iii) determining, at the communications entity, a remote IP address and port number pair corresponding to an interface on the device to be used for communicating media of the media session; (iv) transmitting, from the communications entity to the NAPT, a signal identifying the determined remote IP address and port number pair; and (v) releasing, at the NAPT, the allocated public IP address and port number pair.

3. 发明申请

US20150156104A1 SECURE MEDIA ADDRESS LEARNING FOR ENDPOINTS BEHIND NAPT DEVICES 有权
标题翻译：安全媒体地址学习用于终结点击NAPT设备
公开(公告)号：US20150156104A1
公开(公告)日：2015-06-04
申请号：US14615154
申请日：2015-02-05
申请人： Sonus Networks, Inc.
发明人： Tolga Asveren
IPC分类号： H04L12/751 , H04L29/12
CPC分类号： H04L45/08 , H04L29/1233 , H04L29/12424 , H04L29/125 , H04L61/20 , H04L61/2007 , H04L61/25 , H04L61/2514 , H04L61/2517 , H04L61/2557 , H04L61/256 , H04L61/6077 , H04L63/029 , H04L63/0807 , H04L65/1006 , H04L65/1069 , H04L65/1083 , H04W12/06
摘要： A first media packet from a first endpoint of an access network behind a NAPT device is received by a media device between a core network and the access network. The first media packet includes a first source IP address and port combination identifying the first endpoint. An UPDATE request or a reINVITE request is transmitted by the media device. A second IP address and port combination for the media device to receive future media packets from the first endpoint is negotiated. The media device compares a first IP address of the first source IP address and port combination to a second IP address of a second source address and port combination for a second media packet received on the second IP address and port combination. If the first and second IP addresses match, the media device relays media packets from the core network to the first endpoint.
摘要翻译：来自NAPT设备后面的接入网络的第一端点的第一媒体分组由媒体设备在核心网络和接入网络之间接收。第一媒体分组包括标识第一端点的第一源IP地址和端口组合。 UPDATE请求或reINVITE请求由媒体设备发送。协商媒体设备接收来自第一端点的未来媒体分组的第二IP地址和端口组合。媒体设备将第一源IP地址和端口组合的第一IP地址与第二IP地址和端口组合接收的第二媒体分组的第二源地址和端口组合的第二IP地址进行比较。如果第一和第二IP地址匹配，则媒体设备将媒体分组从核心网络中继到第一端点。

4. 发明授权

US09713112B1 Communications methods, apparatus and systems for correlating registrations, service requests and calls 有权
公开(公告)号：US09713112B1
公开(公告)日：2017-07-18
申请号：US14873825
申请日：2015-10-02
申请人： Sonus Networks, Inc.
发明人： Tolga Asveren , Subhransu S. Nayak
IPC分类号： H04W60/00 , H04L29/06 , H04W12/06 , H04W88/02
CPC分类号： H04L65/1083 , H04L63/08 , H04L65/1006 , H04L65/1063 , H04L65/1073 , H04W60/005
摘要： The present invention relates to communications methods, apparatus and systems for correlating registrations with subsequent requests for service, e.g., calling or other services or active calls. In one embodiment requests and corresponding registrations are determined through a method of operating a session border controller (SBC) which includes the assignment of a registration instance identifier by the SBC to each registration request, sending a first message including the registration instance identifier to each user device in response to each registration request, and determining if subsequent requests correspond to the registration instance based on the registration instance identifier being included in subsequent requests. In another embodiment, after a SBC switchover, the new SBC forks a mid-dialog request received for a first call to all active registered devices having the same address of record and determines based on the responses which device has an active dialog corresponding to the first call.

5. 发明申请

US20160380901A1 METHODS AND APPARATUS FOR PREVENTING HEAD OF LINE BLOCKING FOR RTP OVER TCP 审中-公开
标题翻译：防止TCP over TCP的线路阻塞的方法和装置
公开(公告)号：US20160380901A1
公开(公告)日：2016-12-29
申请号：US15262850
申请日：2016-09-12
申请人： Sonus Networks, Inc.
发明人： Tolga Asveren
IPC分类号： H04L12/801 , H04L12/863
CPC分类号： H04L47/34 , H04L47/193 , H04L47/22 , H04L47/6205
摘要： Methods and apparatus for processing and using TCP packets to communicate RTP packets are described. Head of line blocking is avoided by operating a TCP packet processing module to output RTP packet data to an application irrespective of whether or not a preceding TCP packet was received. Since output of packet data to an application using RTP packets is not delayed when there is a missing TCP packet, head of line blocking is avoided. RTP packet data is subjected to pattern matching in order to identify and process RTP packets in the case where RTP header information such as packet length information is missing due to the failure to receive a TCP packet. The methods are particularly well suited for the communication of audio and/or video by devices operating behind firewalls which block UDP or other types of packets other than TCP packets.
摘要翻译：描述了处理和使用TCP分组来传送RTP分组的方法和装置。通过操作TCP分组处理模块来将RTP分组数据输出到应用来避免线路阻塞的头部，而不管先前的TCP分组是否被接收。由于当存在丢失的TCP分组时，使用RTP分组的分组数据的输出不被延迟，所以避免了线路阻塞。在RTP报头信息如分组长度信息由于不能接收TCP分组而丢失的情况下，RTP分组数据经受模式匹配以便识别和处理RTP分组。这些方法特别适用于在阻塞UDP或除TCP数据包之外的其他类型的数据包的防火墙之后运行的设备进行音频和/或视频的通信。

6. 发明授权

US09455927B1 Methods and apparatus for bandwidth management in a telecommunications system 有权
标题翻译：电信系统中带宽管理的方法和装置
公开(公告)号：US09455927B1
公开(公告)日：2016-09-27
申请号：US14061330
申请日：2013-10-23
申请人： Sonus Networks Inc.
发明人： Subhransu S Nayak , Mark Duffy , Tolga Asveren , Shiping Li , Kevin Pilotte
IPC分类号： H04L12/873 , H04L12/911 , H04L12/853 , H04L29/06 , H04L12/801
CPC分类号： H04L47/522 , H04L47/10 , H04L47/2416 , H04L47/70 , H04L69/14
摘要： Methods and apparatus for sharing bandwidth over a link in a packet-oriented telecommunications system or network that supports multiple types of traffic including, e.g., real time packet flows, opportunistic rate packet flows, control and signaling traffic, are described. In one exemplary embodiment the method includes the steps of receiving a bandwidth allocation request requesting allocation of a required amount of bandwidth for a new real time packet flow, allocating the requested bandwidth from bandwidth reserved for newly-allocated real time packet flows, updating the measure of the total amount of bandwidth allocated to real time packet flows to reflect the allocation of the bandwidth to the new real time packet flow, and generating new bandwidth allocations for existing opportunistic rate packet flows based on a measure of the total amount of bandwidth allocated to real time packet flows. Some embodiments of the invention include methods to enforce the dynamic bandwidth allocations.
摘要翻译：描述了支持包括例如实时分组流，机会速率分组流，控制和信令业务在内的多种类型业务的面向分组的电信系统或网络中的链路上的带宽的方法和装置。在一个示例性实施例中，该方法包括以下步骤：接收请求为新的实时分组流分配所需量的带宽的带宽分配请求，从为新分配的实时分组流保留的带宽分配所请求的带宽，更新测量分配给实时分组流的带宽总量，以反映对新的实时分组流的带宽分配，以及基于分配给的总带宽总量的量度，为现有机会速率分组流生成新的带宽分配实时数据包流。本发明的一些实施例包括强制动态带宽分配的方法。

7. 发明授权

US10148636B2 Authentication methods and apparatus 有权
公开(公告)号：US10148636B2
公开(公告)日：2018-12-04
申请号：US15396373
申请日：2016-12-30
申请人： Sonus Networks, Inc.
发明人： Tolga Asveren
IPC分类号： H04L29/06 , H04W12/06 , G06F21/44 , H04L9/32 , H04L29/08
摘要： Methods and apparatus for authenticating a user equipment device (UE) requesting services through a session border controller (SBC) are described. In some embodiments the SBC stores the challenge and response for a successfully authenticated UE and uses this information to authenticate the UE when the UE seeks access to a service, e.g., establishing a new TCP connection. In some other embodiments, in response to receiving an Invite request from a UE requesting service the SBC generates and sends a Registration request to an authentication entity on behalf of the UE to trigger an authentication process. If the UE is authenticated the SBC allows service access, e.g., allows a call to proceed, otherwise denies service to the UE.

8. 发明授权

US10129163B2 Methods and apparatus for preventing head of line blocking for RTP over TCP 有权
公开(公告)号：US10129163B2
公开(公告)日：2018-11-13
申请号：US15262850
申请日：2016-09-12
申请人： Sonus Networks, Inc.
发明人： Tolga Asveren
IPC分类号： H04L12/801 , H04L12/863 , H04L12/815
摘要： Methods and apparatus for processing and using TCP packets to communicate RTP packets are described. Head of line blocking is avoided by operating a TCP packet processing module to output RTP packet data to an application irrespective of whether or not a preceding TCP packet was received. Since output of packet data to an application using RTP packets is not delayed when there is a missing TCP packet, head of line blocking is avoided. RTP packet data is subjected to pattern matching in order to identify and process RTP packets in the case where RTP header information such as packet length information is missing due to the failure to receive a TCP packet. The methods are particularly well suited for the communication of audio and/or video by devices operating behind firewalls which block UDP or other types of packets other than TCP packets.

9. 发明授权

US09961118B2 Communications methods, apparatus and systems for correlating registrations, service requests and calls 有权
公开(公告)号：US09961118B2
公开(公告)日：2018-05-01
申请号：US15492196
申请日：2017-04-20
申请人： Sonus Networks, Inc.
发明人： Tolga Asveren , Subhransu S. Nayak
IPC分类号： H04W12/06 , H04L29/06
CPC分类号： H04L65/1083 , H04L63/08 , H04L65/1006 , H04L65/1063 , H04L65/1073 , H04W60/005
摘要： The present invention relates to communications methods, apparatus and systems for correlating registrations with subsequent requests for service, e.g., calling or other services or active calls. In one embodiment requests and corresponding registrations are determined through a method of operating a session border controller (SBC) which includes the assignment of a registration instance identifier by the SBC to each registration request, sending a first message including the registration instance identifier to each user device in response to each registration request, and determining if subsequent requests correspond to the registration instance based on the registration instance identifier being included in subsequent requests. In another embodiment, after a SBC switchover, the new SBC forks a mid-dialog request received for a first call to all active registered devices having the same address of record and determines based on the responses which device has an active dialog corresponding to the first call.

10. 发明授权

US09553792B2 Secure media address learning for endpoints behind NAPT devices 有权
标题翻译：为NAPT设备后端点安全媒体地址学习
公开(公告)号：US09553792B2
公开(公告)日：2017-01-24
申请号：US14615154
申请日：2015-02-05
申请人： Sonus Networks, Inc.
发明人： Tolga Asveren
IPC分类号： H04L12/751 , H04L29/12 , H04L29/06 , H04W12/06
CPC分类号： H04L45/08 , H04L29/1233 , H04L29/12424 , H04L29/125 , H04L61/20 , H04L61/2007 , H04L61/25 , H04L61/2514 , H04L61/2517 , H04L61/2557 , H04L61/256 , H04L61/6077 , H04L63/029 , H04L63/0807 , H04L65/1006 , H04L65/1069 , H04L65/1083 , H04W12/06
摘要： A first media packet from a first endpoint of an access network behind a NAPT device is received by a media device between a core network and the access network. The first media packet includes a first source IP address and port combination identifying the first endpoint. An UPDATE request or a reINVITE request is transmitted by the media device. A second IP address and port combination for the media device to receive future media packets from the first endpoint is negotiated. The media device compares a first IP address of the first source IP address and port combination to a second IP address of a second source address and port combination for a second media packet received on the second IP address and port combination. If the first and second IP addresses match, the media device relays media packets from the core network to the first endpoint.
摘要翻译：来自NAPT设备后面的接入网络的第一端点的第一媒体分组由媒体设备在核心网络和接入网络之间接收。第一媒体分组包括标识第一端点的第一源IP地址和端口组合。 UPDATE请求或reINVITE请求由媒体设备发送。协商媒体设备接收来自第一端点的未来媒体分组的第二IP地址和端口组合。媒体设备将第一源IP地址和端口组合的第一IP地址与第二IP地址和端口组合接收的第二媒体分组的第二源地址和端口组合的第二IP地址进行比较。如果第一和第二IP地址匹配，则媒体设备将媒体分组从核心网络中继到第一端点。

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