公开(公告)号：CA2509393C

公开(公告)日：2012-12-11

申请号：CA2509393

申请日：2003-12-11

Applicant: QUALCOMM INC

Inventor： DYCK JEFFREY ,  LIOY MARCELLO ,  ABROL NISCHAL

IPC: H04L29/06 ,  H04L12/56 ,  H04W12/06 ,  H04W24/00 ,  H04W60/00 ,  H04W76/06 ,  H04W80/00 ,  H04W80/04

Abstract: In a wireless communication system, a method for early determination of network support for Mobile IP is disclosed. A mobile node is in communication with a wireless network. Then a test is performed for a disconnect condition wherein the disconnect condition is an early indication of network non-support for Mobile IP as identified by at least a requirement for authentication. Early indication relates to identification of the non-support for Mobile IP prior to or during network packet connection. If the disconnect condition is found, the mobile node disconnects from the wireless network. If the disconnect condition is not found, the mobile node stays connected to the wireless network.

公开(公告)号：CA2397259C

公开(公告)日：2011-11-15

申请号：CA2397259

申请日：2001-01-09

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL

IPC: H04W76/06 ,  H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04W28/18 ,  H04W68/00 ,  H04W92/02

Abstract: A method and system for terminating dormant mode wireless packet data sessions when a remote network node becomes inaccessible. A wireless subscriber station detects that the remote network node become inaccessible and sends the wireless network a termination notification identifying the packet data session corresponding to the remote network node.

公开(公告)号：NO329341B1

公开(公告)日：2010-10-04

申请号：NO20023309

申请日：2002-07-09

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL

IPC: H04L12/56 ,  H04L12/28 ,  H04L29/06 ,  H04L29/08 ,  H04W28/18

Abstract: An improved method and system for terminating dormant mode wireless packet data sessions when a remote network node becomes inaccessible. A wireless subscriber station sends the wireless network a termination notification identifying a packet data session corresponding to a remote network node that has become inaccessible and should be terminated.

公开(公告)号：AT459180T

公开(公告)日：2010-03-15

申请号：AT03746634

申请日：2003-04-03

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  DYCK JEFFREY ,  LIOY MARCELLO

IPC: H04L29/06 ,  H04M1/00 ,  H04L1/00 ,  H04L12/56 ,  H04L29/12 ,  H04M11/00

Abstract: A system and method for transparent Mobile IP registration within PPP negotiation uses a mobile telephone to relay messages between terminal equipment and a Foreign Agent (FA). An IPCP configuration request message by the terminal equipment requesting the assignment of an IP address is modified by the mobile telephone to delete the IP address request option. Other configuration options are forwarded unchanged by the mobile telephone to the peer/network. The peer/network responds with an acknowledgement of the requested configuration options and flow control between the terminal and the MT is asserted to permit Mobile IP registration. In the course of Mobile IP registration, and IP address is assigned to the mobile unit by the FA. Upon completion of the Mobile IP registration, flow control between the mobile telephone and the terminal is deasserted and the IP address assigned during Mobile IP registration is provided to the terminal equipment. In addition, the previously requested options may also be acknowledged.

公开(公告)号：AU2009201866B2

公开(公告)日：2009-08-13

申请号：AU2009201866

申请日：2009-05-12

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  REZAIIFAR RAMIN

IPC: H04L12/56 ,  H04W36/00 ,  H04L12/28 ,  H04W36/12 ,  H04W36/36 ,  H04W84/08

Abstract: A novel method and apparatus is disclosed for performing seamless handoff of a mobile station (MS) between Radio Access Networks (RANs) that use different types of wireless interfaces. The described embodiments enable an MS to handoff between different RANs without causing routing ambiguity, and without substantial loss of network data. Upon moving from the coverage area of a first RAN using a first wireless interface to the coverage area of a second RAN using a second wireless interface, an MS determines whether routing ambiguity may result from the change of RAN and, based on the determination, triggers a re-registration of its network address. A foreign agent (FA) within a packet data serving node (PDSN) monitors network address re-registrations in order to determine whether multiple RAN-PDSN (R-P) connections are being created for the same MS. Based on this determination, the PDSN terminates redundant R-P network connections resulting from movement of the MS between different RANs.

公开(公告)号：AU2009201868A1

公开(公告)日：2009-06-04

申请号：AU2009201868

申请日：2009-05-12

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  REZAIIFAR RAMIN

IPC: H04L12/56 ,  H04W36/00 ,  H04L12/28 ,  H04W36/12 ,  H04W84/08

Abstract: A novel method and apparatus is disclosed for performing seamless handoff of a mobile station (MS) between Radio Access Networks (RANs) that use different types of wireless interfaces. The described embodiments enable an MS to handoff between different RANs without causing routing ambiguity, and without substantial loss of network data. Upon moving from the coverage area of a first RAN using a first wireless interface to the coverage area of a second RAN using a second wireless interface, an MS determines whether routing ambiguity may result from the change of RAN and, based on the determination, triggers a re-registration of its network address. A foreign agent (FA) within a packet data serving node (PDSN) monitors network address re-registrations in order to determine whether multiple RAN-PDSN (R-P) connections are being created for the same MS. Based on this determination, the PDSN terminates redundant R-P network connections resulting from movement of the MS between different RANs.

公开(公告)号：CA2364269C

公开(公告)日：2009-03-24

申请号：CA2364269

申请日：2000-02-24

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  LIOY MARCELLO

IPC: H04W76/00 ,  H04L29/06 ,  H04L29/08 ,  H04W80/00

Abstract: A method and a wireless communication device (MT2) (104) for simultaneously negotiating LCP or IPCP configuration options over both the R m and the U m interfaces. When the MT2 device (104) receives either an LCP or an IPCP Configure-Request packet over one of the R m or the U m interfaces, the MT2 device parses the requested configuration options (S310, S510) and determines whether the requested options are supported (S320, S320) by the MT2 device. If the requested options are supported, the MT2 device saves a Configure-Request ID (S360, S560), included in the Configure-Request packet, and frames the Configure-Request packet in a PPP frame for transmission on the other of the R m or the U m interfaces. If any of the requested configuration options are not supported by the MT2 device, the MT2 device creates a Configure-Reject packet (S330, S530 ), including the unsupported options, and frames the Configure-Reject packet in a PPP frame for transmission over the interface through which it received the Configure-Request packet.

公开(公告)号：AT415789T

公开(公告)日：2008-12-15

申请号：AT00961656

申请日：2000-09-07

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  LIOY MARCELLO

IPC: H04B7/26 ,  H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04W28/18 ,  H04W80/00

Abstract: A method and system that detects protocol and configuration messages in a PPP packet without having to unframe the entire packet. The method includes a communication device that receives a plurality data frames, wherein the communication device is capable of ascertaining the beginning of an information portion within the received frames. The communications device detects whether the information portion contains configuration information, such as protocol and configuration messages of a predetermined type. In a first embodiment, the detection is achieved by the communication device unescaping the contents of a plurality of bytes and determining whether the escaped bytes contains the desired configuration information. In a second embodiment, the communication device determines whether the contents of a particular byte contain the desired configuration information, in escaped or unescaped form, and the communication device continues to sequentially process the bytes within the information portion until the bytes typically containing the desired configuration information are processed.

公开(公告)号：AT384407T

公开(公告)日：2008-02-15

申请号：AT00986656

申请日：2000-12-20

Applicant: QUALCOMM INC

Inventor： LIOY MARCELLO ,  ABROL NISCHAL

IPC: H04L12/56 ,  H04L29/06 ,  H04W28/24 ,  H04W36/00 ,  H04W36/14 ,  H04W52/02 ,  H04W76/02 ,  H04W80/02 ,  H04W80/04 ,  H04W92/08

Abstract: A mobile packet network call is established over a transmission link, extending between a mobile terminal device and a given interworking function. The transmission link connects the mobile terminal device to a wireless communication device over a first interface and further connects the wireless communication device to the given interworking function over a second interface via a wireless link to a base station. The transmission link further comprises a packet mode in which the traffic channel is up and a dormant mode in which the traffic channel is down while the data link layer link and the network layer link are maintained. Network region identifier information is provided to the wireless communication device. The wireless communication device determines when the given interworking function has changed from a first interworking function to a second interworking function by determining when there is a corresponding change in the network region identifier information. The wireless communication device initiates a link control protocol renegotiation with the mobile terminal device when the corresponding change in the network region identifier information has been determined. The mobile terminal device responds to the initiation of the link control protocol, and causes the transmission link to enter the packet mode, and to bring up the traffic channel. The data link layer link is then established with the second interworking function. The mobile terminal device and the second interworking function then negotiate network control protocol options and establish a network layer link. If the second interworking function corresponds to a new foreign agent, the mobile terminal device will then update its IP mobility registration.

公开(公告)号：DE60034698T2

公开(公告)日：2008-01-17

申请号：DE60034698

申请日：2000-11-09

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  LEUNG NIKOLAI K

IPC: H04L12/28 ,  H04L29/08 ,  H04B7/26 ,  H04L1/18 ,  H04L1/20 ,  H04W28/04 ,  H04W76/02 ,  H04W76/04

Abstract: An apparatus (102, 104) for transmitting a stream of information bytes, the apparatus (102, 104) includes a mechanism (604, 618, 638) for receiving/transmitting a message specifying a radio link protocol, RLP, round-trip time, RTT, estimate, and a mechanism (604) for conducting an RLP communication session using said RTT estimate to determine negative acknowledgment, NAK, message timing. A first RLP RTT estimate can be established during service negotiation, and is used to determine NAK message timing in a subsequent RLP communication session. Alternatively, a 3-way handshake is performed for generating a first RTT estimate associated with the first RLP communication session, a second RTT estimate, based on the first RTT estimate, associated with a second RLP communication session is established during service negotiation. The second RLP RTT estimate is used to determine NAK message timing in a subsequent RLP communication session.