公开(公告)号：BR0207277A

公开(公告)日：2004-12-28

申请号：BR0207277

申请日：2002-02-06

Applicant: QUALCOMM INC

Inventor： LIOY MARCELO ,  ABROL NISCHAL

IPC: H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04W12/10 ,  H04W28/06 ,  H04W48/08 ,  H04W74/04 ,  H04W80/00

Abstract: A method for selectively maintaining a compression state and applying a compression technique after a PPP renegotiation on a U m interface of a wireless communication network. A communication device (104) receives packetized data transmitted from a terminal device (102) which is coupled to the communication device via an R m interface. The communication device determines (S315) whether the received packetized data comprises compressed or uncompressed data. Upon determining that the received packetized data comprises compressed data, the communication device determines (S340) whether connection information exceeds a highest numbered decompression slot from a plurality of decompression slots on said U m interface. The communication device sets up (S330) a local decompression slot, in the communication device, which corresponds to the connection information in order to maintain said compressionsate, wherein the local decompression slot is set up in response to determining (S325) that the connection information exceeds the highest-numbered decompression slot. The communication device decompresses (S350) the compressed packetized data when it receives compressed packetized data containing said connection information.

公开(公告)号：HK1063263A1

公开(公告)日：2004-12-17

申请号：HK04105971

申请日：2004-08-10

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  REZAIIFAR RAMIN

IPC: H04L12/56 ,  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：HK1063251A1

公开(公告)日：2004-12-17

申请号：HK04105968

申请日：2004-08-10

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  LIOY MARCELLO

IPC: H04W76/04 ,  H04B7/26 ,  H04L47/43 ,  H04W4/18 ,  H04W28/10 ,  H04W76/02 ,  H04W80/02

Abstract: The packets generated by each of multiple packet data applications are provided to a single Point-to-Point Protocol (PPP) stack and a single High-level Data Link Control (HDLC) framing layer to convert data packets into byte streams suitable for transmission through Radio Link Protocol (RLP) connections. Each of the resultant multiple byte streams is then provided to one of multiple RLP connections having different retransmission and delay properties. The RLP connection selected for sending data from each application is based on the grade of service most appropriate for the application. At the receiver, the data from the multiple RLP connections is provided to a single PPP stack.

公开(公告)号：AU2003299813A8

公开(公告)日：2004-07-22

申请号：AU2003299813

申请日：2003-12-19

Applicant: QUALCOMM INC

Inventor： BABBAR UPPINDER S ,  ABROL NISCHAL ,  LIOY MARCELLO ,  MICHAELIS OLIVER

IPC: H04L12/28 ,  H04L12/56 ,  H04W4/18 ,  H04W8/24 ,  H04W8/26 ,  H04W72/00 ,  H04W72/04 ,  H04W74/00 ,  H04W76/02 ,  H04W76/04 ,  H04W88/02 ,  H04W88/06 ,  H04W92/02 ,  H04W92/08 ,  H04W92/18 ,  H04Q7/32

公开(公告)号：BR0107490A

公开(公告)日：2004-06-22

申请号：BR0107490

申请日：2001-01-09

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL

IPC: H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04W28/18 ,  H04Q7/22

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：AU2003226298A1

公开(公告)日：2003-10-27

申请号：AU2003226298

申请日：2003-04-03

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  DYCK JEFFREY ,  LIOY MARCELLO

IPC: H04M1/00 ,  H04L1/00 ,  H04L12/56 ,  H04L29/06 ,  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：AU2003217857A8

公开(公告)日：2003-09-09

申请号：AU2003217857

申请日：2003-02-27

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  TURNER SIMON ,  LIN JIAN ,  PAN HANFANG

IPC: H04L29/06 ,  H04L29/08 ,  H04L1/00

Abstract: An HDLC accelerator includes a deframer and framer to respectively accelerate the deframing and framing processes for PPP packets. The deframer includes an input interface unit, a detection unit, a conversion unit, and an output interface unit. The input interface unit receives a packet of data to be deframed. The detection unit evaluates each data byte to detect for special bytes (e.g., flag, escape, and invalid bytes). The conversion unit deframes the received data by removing flag and escape bytes, “un-escaping” the data byte following each escape byte, providing a header word for each flag byte, and checking each deframed packet based on a frame check sequence (FCS) value associated with the packet. The output interface unit provides deframed data and may further perform byte alignment in providing the deframed data. A state control unit provides control signals indicative of specific tasks to be performed for deframing.

公开(公告)号：BR0016001A

公开(公告)日：2002-12-31

申请号：BR0016001

申请日：2000-12-04

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  LIOY MARCELLO

IPC: G06F21/20 ,  H04W12/00 ,  H04W12/06 ,  H04Q7/00

Abstract: A method and apparatus for allowing a mobile station in a wireless network to perform network authentication in association with mobile packet data services. The packet data serving node (PDSN) does not authenticate the mobile station with an authentication server prior to sending a CHAP success message. Rather, a mobile station is authenticated via an authentication server after the PDSN receives an IPCP message indicating whether the mobile station desires to use Mobile IP in the current session. If the mobile station desires to use Mobile IP, the PDSN uses authentication techniques in accordance with Mobile IP protocols. In the preferred embodiment, if the mobile station does not desire to use Mobile IP, the PDSN authenticates the mobile station querying an authentication server with the buffered contents of a previously received CHAP challenge response.

公开(公告)号：HK1045432A1

公开(公告)日：2002-11-22

申请号：HK02106868

申请日：2002-09-20

Applicant: QUALCOMM INC

Inventor： LIOY MARCELLO ,  ABROL NISCHAL

IPC: H04W88/02 ,  H04B7/26 ,  H04L29/08 ,  H04M11/00 ,  H04W36/08 ,  H04W56/00 ,  H04W92/00

Abstract: A method, within a wireless communication system, and a wireless MT2 device which provide for the resynchronization of a PPP link on each one of a Um and Rm interface without affecting the other of the Um and Rm interface. When a handoff is performed, such that the communications of the mobile MT2 device is handed off to a new BS/MSC, the Um interface will undergo PPP configuration renegotiation without causing the Rm interface also to undergo PPP configuration renegotiation. Similarly, when the Rm interface undergoes PPP configuration renegotiation, the Um interface will not undergo PPP configuration renegotiation.

公开(公告)号：CA2440814A1

公开(公告)日：2002-09-19

申请号：CA2440814

申请日：2002-03-11

Applicant: QUALCOMM INC

Inventor： ABROL NISCHAL ,  LIOY MARCELLO

IPC: H04W76/04 ,  H04B7/26 ,  H04L47/43 ,  H04W4/18 ,  H04W28/10 ,  H04W76/02 ,  H04W80/02 ,  H04L12/56 ,  H04L29/06 ,  H04L12/28

Abstract: The packets generated by each of multiple packet data applications are provided to a single Point-to-Point Protocol (PPP) stack (202) and a single High-level Data Link Control (HDLC) framing layer (204) to convert data packets into byte streams suitable for transmission through Radio Link Protocol (RLP) connections. Each of the resultant multiple byte streams is then provided to one of multiple RLP connections having different retransmission and delay properties (206 and 208). The RLP connection select ed for sending data from each application is based on the grade of service most appropriate for the application. At the receiver, the data from the multiple RLP connections (218 and 216) is provided to a single PPP stack (210).