公开(公告)号：EP1902550A4

公开(公告)日：2013-04-17

申请号：EP06787130

申请日：2006-07-13

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M

IPC: H04W60/00 ,  H04W28/18 ,  H04W48/08 ,  H04W48/18 ,  H04W76/02

CPC classification number: H04W60/00 ,  H04L61/2007 ,  H04L61/6054 ,  H04W8/26 ,  H04W28/18 ,  H04W48/08 ,  H04W76/022

Abstract: A wireless communication system and method of implementing an evolved system attachment procedure are disclosed. The system includes a first core network and a second core network which is evolved from the first core network. A wireless transmit/receive unit (WTRU) sends an attach request message to the second core network. The second core network activates a packet data protocol (PDP) context and sends an attach accept message to the WTRU. The attach accept message includes information regarding the PDP context. The second core network constructs a session and mobility management (SMM) context for session management (SM) and mobility management (MM) for the WTRU.

公开(公告)号：EP1825696A4

公开(公告)日：2012-05-09

申请号：EP05853721

申请日：2005-12-09

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M

IPC: H04L12/28 ,  H04L12/66 ,  H04W36/14 ,  H04W84/12

CPC classification number: H04W36/0022 ,  H04W36/14 ,  H04W84/12 ,  H04W92/02

公开(公告)号：EP1884127A4

公开(公告)日：2012-04-18

申请号：EP06759981

申请日：2006-05-16

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M

IPC: H04B1/16 ,  H04W36/14

CPC classification number: H04W36/14 ,  H04W36/0061 ,  H04W48/16

Abstract: A method and apparatus for implementing a handoff between radio access networks (RANs) deployed under different radio access technologies (RATs) are disclosed. A wireless transmit/receive unit (WTRU) is equipped with at least two radio units to support the RATs. Each RAN sends a list of co-located RANs in the coverage area of the RAN to the WTRU. The WTRU stores the list and determines whether handoff criteria is met by one of the co-located RANs. The WTRU then initiates a handoff from a current RAN to a target RAN if the handoff criteria is met by the target RAN. Alternatively, the WTRU may send a measurement report to the current RAN, whereby the current RAN determines whether handoff criteria is met by a selected one of the co-located RANs and initiate a handoff to the selected RAN if the handoff criteria is met.

公开(公告)号：EP1390770A4

公开(公告)日：2009-10-28

申请号：EP02739452

申请日：2002-05-24

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M ,  KIERNAN BRIAN G

IPC: H04L12/56 ,  H04L29/06 ,  H04W28/06 ,  H04W28/18 ,  H04W76/02 ,  H04W80/10 ,  H04W88/18 ,  G01R31/08 ,  H04J1/16 ,  H04L12/28

CPC classification number: H04L65/605 ,  H04L65/1006 ,  H04L65/103 ,  H04L65/104 ,  H04L65/80 ,  H04L69/04 ,  H04W28/06 ,  H04W28/18 ,  H04W76/02 ,  H04W80/10 ,  H04W88/182

Abstract: Method and Apparatus for making more efficient use of air link resources and network capacity in a mobile telecommunications system in which unauthorized and/or unsupported media types transmitted in a session initialization protocol (SIP) message sent from one equipment user (UE) to another are deleted by the network(s) as the SIP message is routed through the system.

公开(公告)号：EP1782578A4

公开(公告)日：2008-08-06

申请号：EP05783894

申请日：2005-08-05

Applicant: INTERDIGITAL TECH CORP

Inventor： GRANDHI SUDHEER A ,  CHANDRA ARTY ,  LEVY JOSEPH S ,  SHAHEEN KAMEL M ,  TERRY STEPHEN E ,  ZEIRA ELDAD

IPC: H04L12/28 ,  H04W74/04

CPC classification number: H04W48/10 ,  H04B7/02 ,  H04B7/0413 ,  H04B7/2612 ,  H04W72/005 ,  H04W72/0446 ,  H04W74/08 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/442 ,  Y02D70/449

Abstract: A method and system for controlling access to a medium in a wireless communication system. A superframe structure is defined in time domain to include a contention free period (CFP) which has at least one scheduled resource allocation (SRA), at least one management SRA (MSRA) and a contention period. An extended beacon (EB) including information about the SRA and MSRA is transmitted for. The MAC architecture reduces station battery consumption, supports higher throughput for non-real time (NRT) traffic and is more efficient for real time (RT) traffic while maintaining full compatibility.

Abstract translation: 一种在无线通信系统中控制对介质的访问的方法和系统。 在时域中定义超帧结构以包括具有至少一个调度资源分配（SRA），至少一个管理SRA（MSRA）和争用周期的无竞争周期（CFP）。 发送包括关于SRA和MSRA的信息的扩展信标（EB）。 MAC架构降低了站电池消耗，支持非实时（NRT）流量的更高吞吐量，并且对于实时（RT）流量更有效，同时保持完全兼容性。

公开(公告)号：EP1512238A4

公开(公告)日：2007-06-27

申请号：EP03734495

申请日：2003-06-10

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M

IPC: H04H20/42 ,  H04H20/72 ,  H04H60/25 ,  H04L12/18 ,  H04W4/06 ,  H04W60/00 ,  H04W68/00 ,  H04H1/00 ,  H04M11/00

CPC classification number: H04W76/002 ,  H04H20/42 ,  H04H20/72 ,  H04H60/25 ,  H04L12/185 ,  H04L12/189 ,  H04W60/00 ,  H04W68/00

Abstract: A method is provided for delivery of Multimedia Broadcast and Multicast Service (MBMS) over wireless systems. The method optimizes the number of paging messages sent over the air interface in order to enhance the overall system capacity. MBMS active Mobile Station User Equipments (UEs) track their locations to the granularity of a cell based on information sent by the system.

公开(公告)号：EP1723814A4

公开(公告)日：2007-03-14

申请号：EP05725469

申请日：2005-03-11

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M ,  TERRY STEPHEN E ,  KIERNAN BRIAN GREGORY

IPC: H04W36/14 ,  H04W48/18 ,  H04W48/20 ,  H04W84/12 ,  H04W88/06 ,  H04W92/02

CPC classification number: H04W36/005 ,  H04W36/0061 ,  H04W36/04 ,  H04W36/14 ,  H04W48/18 ,  H04W48/20 ,  H04W84/12 ,  H04W88/06 ,  H04W92/02

Abstract: A method and system for switching a radio access technology RAT between two wireless communication systems (110and 120) with overlapping coverage area. RATwith multi-mode WTRU (102) can provide the same service in both networks. Each wireless system transmits an indication of inter-working wireless communication system. WTRU can receive the indication and initiate a handoff to the inter-working system to continue to receive the same service.

公开(公告)号：EP1697851A4

公开(公告)日：2007-02-07

申请号：EP04812536

申请日：2004-11-30

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M

IPC: H04L29/06 ,  H04L20060101 ,  H04L12/28 ,  H04L12/56 ,  H04W28/04 ,  H04W28/18 ,  H04W36/14 ,  H04W36/36 ,  H04W76/02 ,  H04W80/00 ,  H04W80/10

CPC classification number: H04W36/14 ,  H04L29/06027 ,  H04L41/026 ,  H04L41/0681 ,  H04L45/745 ,  H04L51/10 ,  H04L61/605 ,  H04L63/0892 ,  H04L65/1006 ,  H04L65/608 ,  H04W8/04 ,  H04W28/18 ,  H04W36/36 ,  H04W76/027 ,  H04W80/10 ,  H04W84/12

Abstract: Method and apparatus for providing a solution to the handoff problem includes negotiation of new media codes (coders/decoders) for utilization in cases where the two devices involved in the handoff are incompatible. Although mobile IP (MIP) is presently utilized to perform handoff procedures, this technique lacks a trigger mechanism to initiate handoff between two different devices which communicate with two different networks or one common network. In addition, MIP does not address the issue of compatibilities between media types, codes and supported bit rate. The handoff utilizes a session protocol (SIP) message for handoff.

公开(公告)号：EP1540490A4

公开(公告)日：2006-03-22

申请号：EP03749351

申请日：2003-09-02

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M

IPC: H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04W8/26 ,  H04W36/00 ,  H04W36/14 ,  H04W80/00 ,  H04W80/04 ,  H04W88/02 ,  G06F15/16

CPC classification number: H04W36/0011 ,  H04L67/14 ,  H04W8/26 ,  H04W36/14 ,  H04W36/365 ,  H04W36/38 ,  H04W80/00 ,  H04W80/04 ,  H04W88/02

Abstract: Apparatus and method by which Internet Protocol (IP) traffic can be transferred (i.e. handoff) between two different terminals operating according to two different technology standards in two different systems with two different IP addresses. For example, a session handoff can be made between a terminal in Wireless Local Area Network (WLAN) (19) a terminal in a 3GPP UMTS (25) or between a terminal in CDMA2000 and a terminal in a 3GPP UMTS. These terminals can be either physically separate entities or logical entities that are encapsulated within a common enclosure.

公开(公告)号：MY186557A

公开(公告)日：2021-07-27

申请号：MYPI20083444

申请日：2007-03-07

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M

IPC: H04W36/14 ,  H04W92/24

Abstract: The present invention relates to a method and apparatus for performing handover between a universal mobile telecommunication system (UTMS) terrestrial radio access network (UTRAN), and an evolved-UTRAN (E-UTRAN) (112) based system. The wireless communication system (100) includes a UTRAN, and E-UTRAN, a 2G/3G core network (136), and long term evolution (LTE) core network, and at least one wireless transmit/receive unit (WTRU) including an LTE element and ad 2G/3G element. According to the present invention the WTRU shall be able to handover a call initiated on the UTRAN (114) to the E-UTRAN (112), and visa versa. The 2G/3G core network (136) and the LTE core network are linked by a Gn interface. (Figure 1)