公开(公告)号：EP1847135A4

公开(公告)日：2014-11-05

申请号：EP06720130

申请日：2006-02-01

Applicant: CISCO TECH INC

Inventor： JAGADEESAN RAMANATHAN T ,  NGUYEN BICH T ,  CHUNG ANDREW C ,  RAMALHO MICHAEL A

IPC: H04W36/18 ,  H04L29/06 ,  H04W36/14 ,  H04W84/04 ,  H04W84/12 ,  H04W88/06

CPC classification number: H04W36/18 ,  H04L65/80 ,  H04W36/14 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06

Abstract: A method for handling media in a make-before-break handoff between wireless networks is provided that includes communicating with a mobile station to facilitate a session handoff between two call legs of a session. The method also includes identifying a relevant frame of one of the legs, performing a cross correlation operation, generating a delay difference estimate between the two legs, and performing a level difference estimation for the two legs.

公开(公告)号：EP1665686A4

公开(公告)日：2011-05-18

申请号：EP04781741

申请日：2004-08-20

Applicant: CISCO TECH INC

Inventor： JAGADEESAN RAMANATHAN T ,  NGUYEN BICH T ,  TOOR KAMALDIP ,  PEARCE CHRISTOPHER E ,  VALLURU SUDHAKAR S

IPC: H04L12/66 ,  H04M7/00 ,  H04W4/24 ,  H04W36/14 ,  H04W40/00 ,  H04W76/02 ,  H04W80/00 ,  H04W84/16 ,  H04W88/16

CPC classification number: H04W84/16 ,  H04L65/1036 ,  H04L65/1053 ,  H04L65/1056 ,  H04L65/1069 ,  H04M3/42314 ,  H04M7/006 ,  H04M7/1235 ,  H04M7/125 ,  H04M2207/18 ,  H04W4/24 ,  H04W8/10 ,  H04W40/00 ,  H04W76/02 ,  H04W80/00 ,  H04W88/16

Abstract: A method is provided that includes receiving a request from a communication device to establish a communication session with a mobile station, the mobile station being operable to roam between a private and a public network. The mobile station is signaled via a cellular data network that a call is being initiated for the mobile station. Signaling information may be exchanged with a voice gateway such that one or more voice circuits are established. A signaling pathway may be established between an Internet protocol private branch exchange (IP PBX) and the mobile station via the cellular data network. The establishment of the signaling pathway is substantially concurrent with the establishment of one or more of the voice circuits. One or more features associated with a private network are delivered to the mobile station during the communication session as an end user moves between the public and private networks.

公开(公告)号：EP1665830A4

公开(公告)日：2010-06-30

申请号：EP04780452

申请日：2004-08-09

Applicant: CISCO TECH INC

Inventor： JAGADEESAN RAMANATHAN T ,  NGUYEN BICH T ,  TOOR KAMALDIP ,  TRENCHARD TROY M ,  VALLURU SUDHAKAR S ,  WAN TONY T

IPC: H04B1/38 ,  H04M1/00 ,  H04M3/42 ,  H04W84/16

CPC classification number: H04W84/16 ,  H04M3/42314 ,  H04M3/4234 ,  H04M7/006 ,  H04M2203/1091 ,  H04M2207/18

Abstract: A method is provided that includes receiving a request from a communication device to establish a communication session with a mobile station. The request is responded to by signaling the mobile station via a cellular data network that a call is being initiated for the mobile station. Signaling information may be exchanged with a voice gateway such that one or more voice circuits are established to accommodate voice data that may propagate between the communication device and the mobile station. A signaling pathway may be established between an Internet protocol private branch exchange (IP PBX) and the mobile station via the cellular data network. The establishment of the signaling pathway is substantially concurrent with the establishment of one or more of the voice circuits such that one or more features associated with a private network are delivered to the mobile station during the communication session.

公开(公告)号：EP1844616A4

公开(公告)日：2014-09-24

申请号：EP06719350

申请日：2006-01-25

Applicant: CISCO TECH INC

Inventor： JAGADEESAN RAMANATHAN T ,  KANG CHOL SU ,  NGUYEN BICH T ,  STEPHENSON DAVID S ,  REBO RICHARD D

IPC: H04W48/08 ,  H04W36/14 ,  H04W48/16 ,  H04W48/18

CPC classification number: H04W36/14 ,  H04W48/08 ,  H04W48/16 ,  H04W48/18

Abstract: According to a particular embodiment, a method for assisting in a handoff is provided that includes receiving signaling from one or more access points, which may transmit information to a mobile station. The information may be used to execute a handoff from an enterprise network to a cellular network or from the cellular network to the enterprise network.

公开(公告)号：EP1787482A4

公开(公告)日：2012-12-05

申请号：EP05792496

申请日：2005-08-30

Applicant: CISCO TECH INC

Inventor： PEARCE CHRISTOPHER E ,  JAGADEESAN RAMANATHAN T ,  NGUYEN BICH T

IPC: H04W36/14 ,  H04M3/42 ,  H04W8/12 ,  H04W84/04 ,  H04W84/12

CPC classification number: H04W36/14 ,  H04M3/4234 ,  H04M2207/18 ,  H04W8/12 ,  H04W84/12 ,  H04W84/16 ,  H04W88/06

Abstract: A mobile station includes a first wireless interface that can couple to a first wireless network, a second wireless interface that can couple to a second wireless network, and a controller. The controller can negotiate a first wireless link with the first wireless network using the first wireless interface and establish a communication session with a remote device using the first wireless link. The controller can also detect a session handoff trigger, negotiate a second wireless link with the second wireless network using the second wireless interface in response to the session handoff trigger, and invoke a private branch exchange feature to transfer the communication session from the first wireless link to the second wireless link.

公开(公告)号：EP1817923A4

公开(公告)日：2011-09-28

申请号：EP05825870

申请日：2005-11-04

Applicant: CISCO TECH INC

Inventor： JAGADEESAN RAMANATHAN T ,  NGUYEN BICH T ,  CHUNG ANDREW C ,  PEARCE CHRISTOPHER E

IPC: H04W36/14

CPC classification number: H04W36/14 ,  H04W36/0055