公开(公告)号：US07035391B2

公开(公告)日：2006-04-25

申请号：US09808934

申请日：2001-03-15

申请人： Yigang Cai ,  Xu Chen ,  Ning-Yin Chou ,  Valentin Mircea Hossu ,  Chitresh Kumar Yadav

发明人： Yigang Cai ,  Xu Chen ,  Ning-Yin Chou ,  Valentin Mircea Hossu ,  Chitresh Kumar Yadav

IPC分类号： H04M7/00

CPC分类号： H04Q3/0029 ,  H04Q3/0025

摘要： Communication between a service switching point (SSP) and an external (or stand alone) Intelligent Peripheral (IP) has not been defined by any of the standard bodies. ITU-T Q.1600 and ETSI 300 374-1 defines the network configuration of SCP, SSP and stand-alone IP units using SS7 ISUP connection, but ITU-T Q.1600 and ETSI 300 374-1 does not specify in detail the SS7 ISUP messages for bi-directional communication between a SSP and an IP unit. This invention details the message flow between a SCP, a SSP and an ISUP IP unit, especially in the messages between the SSP and IP unit using SS7 ISUP protocol. With the signaling method of the present invention, SCP can send INAP operations, such as PA, PCUI to instruct an external IP unit to play an announcement or collect user information, then an IP unit can send back the related operations back to SCP. In this case, the resource of the IP unit can be shared by other switches and SSPs in the network.

摘要翻译： 服务交换点（SSP）和外部（或独立）智能外设（IP）之间的通信尚未被任何标准机构定义。 ITU-T Q.1600和ETSI 300 374-1使用SS7 ISUP连接定义了SCP，SSP和独立IP单元的网络配置，但ITU-T Q.1600和ETSI 300 374-1未详细规定 SS7 ISUP消息，用于SSP和IP单元之间的双向通信。 本发明详细描述了SCP，SSP和ISUP IP单元之间的消息流程，特别是在使用SS7 ISUP协议的SSP和IP单元之间的消息中。 利用本发明的信令方法，SCP可以发送诸如PA，PCUI的INAP操作来指示外部IP单元播放通知或收集用户信息，然后IP单元可以将相关操作发送回SCP。 在这种情况下，IP单元的资源可以由网络中的其他交换机和SSP共享。

公开(公告)号：US08046381B2

公开(公告)日：2011-10-25

申请号：US11114258

申请日：2005-04-26

申请人： Yigang Cai ,  Simon Xu Chen ,  Ivy Qingfang Meng ,  Bill Xiang Yu Qian ,  Alexander Aihao Yin ,  Elsie Shu Fang Zhang ,  Eric Xiaoming Zhao

发明人： Yigang Cai ,  Simon Xu Chen ,  Ivy Qingfang Meng ,  Bill Xiang Yu Qian ,  Alexander Aihao Yin ,  Elsie Shu Fang Zhang ,  Eric Xiaoming Zhao

IPC分类号： G06F17/00

CPC分类号： H04M7/121

摘要： A communication network is described that allows legacy devices to access an IMS network. The communication network includes a switching system, an IMS network, and a non-IMS network. The switching system includes a subscriber database that is pre-provisioned with identities of IMS subscribers using legacy devices. When in operation, a calling party places a call through a legacy device. The switching system receives the call and accesses the subscriber database based on a calling party identifier (e.g., a phone number, URL, etc) to determine if the calling party is an IMS subscriber. If the calling party is an IMS subscriber, then the switching system routes the call to the IMS network. If the calling party is not an IMS subscriber, then the switching system routes the call to the non-IMS network.

摘要翻译： 描述了允许传统设备访问IMS网络的通信网络。 通信网络包括交换系统，IMS网络和非IMS网络。 该交换系统包括一个订户数据库，该用户数据库使用传统设备为IMS订户的身份预先配置。 在运营中，主叫方通过传统设备拨打电话。 交换系统接收呼叫并且基于呼叫方标识符（例如，电话号码，URL等）来访问订户数据库，以确定主叫方是否是IMS订户。 如果主叫方是IMS用户，则交换系统将呼叫路由到IMS网络。 如果主叫方不是IMS用户，则交换系统将呼叫路由到非IMS网络。

公开(公告)号：US20080010688A1

公开(公告)日：2008-01-10

申请号：US11563508

申请日：2006-11-27

申请人： Yigang Cai ,  Simon Xu Chen ,  Alex Zhi Gang Hu ,  Luke Zhigang Yang

发明人： Yigang Cai ,  Simon Xu Chen ,  Alex Zhi Gang Hu ,  Luke Zhigang Yang

IPC分类号： H04L9/32

CPC分类号： H04L63/20 ,  H04L65/1016 ,  H04W12/0023 ,  H04W12/02

摘要： IMS networks and methods are disclosed for securing media streams for IMS sessions. A CSCF of an IMS network receives a registration message, such as a SIP Register message, from user equipment (UE) of an IMS subscriber indicating whether the UE supports media security. The CSCF then forwards a registration message, such as a Diameter MAR, to a subscriber database that includes a header parameter also indicating that the UE supports media security. A media security system generates media security information (e.g., algorithms, keys, etc), and the subscriber database transmits a response message, such as a Diameter MAA, to the CSCF that includes a header parameter for the media security information. The CSCF transmits a response message, such as a SIP 200 OK message, to the UE that includes a header parameter for the media security information. The UE may use the media security information to secure media streams.

摘要翻译： 公开了用于保护用于IMS会话的媒体流的IMS网络和方法。 IMS网络的CSCF从IMS用户设备（UE）接收诸如SIP注册消息的注册消息，指示UE是否支持媒体安全性。 CSCF然后将诸如Diameter MAR的注册消息转发到订户数据库，用户数据库包括还指示UE支持媒体安全性的报头参数。 媒体安全系统生成媒体安全信息（例如，算法，密钥等），并且订户数据库向包括用于媒体安全信息的报头参数的CSCF发送诸如Diameter MAA的响应消息。 CSCF向包括用于媒体安全信息的报头参数的UE发送诸如SIP 200 OK消息的响应消息。 UE可以使用媒体安全信息来保护媒体流。

公开(公告)号：US07535993B2

公开(公告)日：2009-05-19

申请号：US10419521

申请日：2003-04-21

申请人： Yigang Cai ,  Xu Chen

发明人： Yigang Cai ,  Xu Chen

IPC分类号： H04M11/04

CPC分类号： H04L29/06027 ,  H04L43/00 ,  H04L65/1083

摘要： A call control component of an apparatus in one example employs one or more criteria to select one or more internet protocol calls from a plurality of internet protocol calls in an internet protocol network. The call control component sends a copy of one or more portions of the one or more internet protocol calls to one or more eavesdrop components to monitor the one or more portions of the one or more internet protocol calls.

摘要翻译： 一个示例中的设备的呼叫控制组件采用一个或多个标准来从互联网协议网络中的多个因特网协议呼叫中选择一个或多个互联网协议呼叫。 呼叫控制组件向一个或多个窃听组件发送一个或多个互联网协议呼叫的一个或多个部分的副本，以监视一个或多个互联网协议呼叫的一个或多个部分。

公开(公告)号：US07454200B2

公开(公告)日：2008-11-18

申请号：US10293856

申请日：2002-11-13

申请人： Yigang Cai ,  Xu Chen ,  Jennifer Cong Fang He ,  Hai Guang Mu

发明人： Yigang Cai ,  Xu Chen ,  Jennifer Cong Fang He ,  Hai Guang Mu

IPC分类号： H04M11/00

CPC分类号： H04W4/24 ,  H04M17/00 ,  H04M17/10 ,  H04M17/20 ,  H04M2215/2026 ,  H04M2215/32

摘要： An apparatus in one example comprises a prepay telephone service system component and a personal handyphone system component. The personal handyphone system component employs the prepay telephone service system component to allow a user of a wireless telephone to execute a purchase of one or more units of wireless telephone service. The personal handyphone system component employs the prepay telephone service system component to allow the user to employ one or more of the one or more units of wireless telephone service with the wireless telephone subsequent to the purchase.

摘要翻译： 一个示例中的装置包括预付费电话服务系统组件和个人手持电话系统组件。 个人手持电话系统组件使用预付费电话服务系统组件来允许无线电话的用户执行一个或多个无线电话服务单元的购买。 个人手持电话系统组件采用预付电话服务系统组件，以允许用户在购买之后使用无线电话服务中的一个或多个单元的无线电话服务中的一个或多个。

公开(公告)号：US07734027B2

公开(公告)日：2010-06-08

申请号：US10454342

申请日：2003-06-04

申请人： Yigang Cai ,  Xu Chen

发明人： Yigang Cai ,  Xu Chen

IPC分类号： G06F15/16 ,  H04M1/56 ,  H04M15/06

CPC分类号： H04L65/1009 ,  H04L29/06027 ,  H04L65/1069 ,  Y10S379/90

摘要： An apparatus in one example comprises one or more call control components. One or more of the one or more call control components connect an internet protocol call initiated by a communication device to an internet protocol endpoint. One or more of the one or more call control components collect identification information of the communication device and send the identification information to the internet protocol endpoint.

摘要翻译： 一个示例中的装置包括一个或多个呼叫控制部件。 一个或多个呼叫控制组件中的一个或多个将由通信设备发起的因特网协议呼叫连接到因特网协议端点。 一个或多个呼叫控制组件中的一个或多个收集通信设备的标识信息，并将识别信息发送到因特网协议端点。

公开(公告)号：US10779283B2

公开(公告)日：2020-09-15

申请号：US15168991

申请日：2016-05-31

申请人： Yigang Cai ,  Yang Yang

发明人： Yigang Cai ,  Yang Yang

IPC分类号： H04W72/04 ,  H04W4/70 ,  H04L5/00 ,  H04L12/801 ,  H04W28/02 ,  H04W72/12 ,  H04W74/08

摘要： The present disclosure generally discloses a wireless resource sharing mechanism configured to support sharing of physical wireless resources of a wireless interface of a wireless access device. The wireless resource sharing mechanism is configured to support sharing of physical wireless resources of a wireless interface of a wireless access device in order to support Machine-Type Communications (MTCs). The wireless resource sharing mechanism is configured to support sharing of physical wireless resources, of a wireless interface of a wireless access device, between MTC traffic of MTC devices and non-MTC traffic of non-MTC devices (referred to herein as legacy traffic of legacy devices). The wireless resource sharing mechanism is configured to support sharing of physical wireless resources, of a wireless interface of a wireless access device, within a scheduling time interval of the wireless interface of the wireless access device.

公开(公告)号：US09848091B2

公开(公告)日：2017-12-19

申请号：US12418206

申请日：2009-04-03

申请人： Yigang Cai ,  Ranjan Sharma ,  Shengqiang Wang

发明人： Yigang Cai ,  Ranjan Sharma ,  Shengqiang Wang

IPC分类号： H04M15/00 ,  G06Q30/04 ,  H04L12/14

CPC分类号： H04M15/82 ,  G06Q30/04 ,  H04L12/14 ,  H04L12/1403 ,  H04M15/00 ,  H04M15/41 ,  H04M15/57 ,  H04M15/8228 ,  H04M2215/208 ,  H04M2215/78 ,  H04M2215/7833

摘要： Charging systems and associated methods are disclosed that provide interim billing for a session in an IMS network. The charging system includes a charging data system that receives accounting messages from network elements serving the session in the IMS network, and generates partial CDRs for each network element based on the accounting messages. The charging data system also sets an aggregation/correlation timer. Responsive to an expiration of the aggregation/correlation timer, the charging data system aggregates the partial CDRs for each network element to generate an aggregated CDR for each network element. The charging system further includes a charging gateway system that, in further response to the expiration of the aggregation/correlation timer, correlates the aggregated CDRs to generate an interim consolidated CDR for the session, and transmits the interim consolidated CDR to a billing system. The billing system may then provide interim billing for the session based on the interim consolidated CDR.

公开(公告)号：US09820127B2

公开(公告)日：2017-11-14

申请号：US12989621

申请日：2008-05-30

申请人： Yigang Cai ,  Xiangyang Li

发明人： Yigang Cai ,  Xiangyang Li

IPC分类号： G07B17/00 ,  H04W4/24 ,  H04L12/14 ,  H04M15/00 ,  G06Q40/00 ,  H04B7/212

CPC分类号： H04W4/24 ,  G06Q40/12 ,  H04L12/1403 ,  H04L12/1425 ,  H04L12/1453 ,  H04L12/1485 ,  H04M15/64 ,  H04M15/66

摘要： Communication networks and methods are disclosed for performing online charging in LTE/EPC communication networks. In an LTE/EPC communication network, one or more LTE network elements connect to an Online Charging System (OCS) over an enhanced interface. The LTE network element that is serving a session for a mobile device triggers on a charging event, and generates a credit request message (e.g., Diameter CCR). The LTE network element identifies access information for the session indicating the type of access for the mobile device to the LTE/EPC communication network, and inserts the access information in the credit request message. Through the enhanced interface, the LTE network element is able to transmit the credit request message to the OCS with the access information. The access information may then be used in the OCS to determine a more accurate charging rate for the session.

公开(公告)号：US20160219487A1

公开(公告)日：2016-07-28

申请号：US14607803

申请日：2015-01-28

申请人： Mohammad R. Khawer ,  Yigang Cai ,  Robert A. Soni

发明人： Mohammad R. Khawer ,  Yigang Cai ,  Robert A. Soni

IPC分类号： H04W36/36 ,  H04W36/16 ,  H04W36/06

CPC分类号： H04W36/36 ,  H04W8/24 ,  H04W36/06 ,  H04W36/16 ,  H04W48/14 ,  H04W48/18 ,  H04W52/0277 ,  Y02D70/1262 ,  Y02D70/142

摘要： A user equipment determines a set of licensed and unlicensed frequency bands that are available for wireless communication. The user equipment selects a first subset of the set as targets for a handover involving at least one unlicensed frequency band and transmits information indicating the first subset. A base station receives information indicating a first subset of a set of licensed and unlicensed frequency bands. The first subset are targets for a handover of user equipment involving at least one unlicensed frequency band. The base station selects a second subset based on the first subset and transmits information indicating the second subset.

摘要翻译： 用户设备确定可用于无线通信的一组许可和非许可频带。 用户设备选择该集合的第一子集作为涉及至少一个未授权频带的切换的目标，并发送指示第一子集的信息。 基站接收指示一组许可和非许可频带的第一子集的信息。 第一子集是用于涉及至少一个未许可频带的用户设备的切换的目标。 基站基于第一子集选择第二子集，并发送指示第二子集的信息。