Abstract: In a wireless communication system, a wireless transmit receive unit (WTRU) adapted to bundle a plurality of services into radio access bearer (RAB) in an uplink signal and unbundle a plurality of services from a RAB in a downlink signal. The WTRU is adapted to communicate with a plurality of services through a communications tunnel.

Abstract: A wireless communication system for supporting multimedia services (MMS) provided to a user of a wireless transmit/receive unit (WTRU) which communicates with the wireless communication system. The wireless communication system includes a third generation partnership program (3GPP) universal mobile telecommunications system (UMTS), a wireless local area network (WLAN) and an MMS server. The MMS server stores at least one MMS message for the WTRU in a memory until the WTRU retrieves the message. The 3GPP UMTS includes an internet protocol short message gateway (IP-SM-GW) having a short message service (SMS) proxy. The WTRU is registered with the SMS proxy to establish SMS connectivity, and is also registered with the MMS server to establish MMS connectivity. The WTRU is notified when the MMS server receives an MMS message for the WTRU. The WTRU then retrieves the MMS message from the memory of the MMS server.

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.

Abstract: In a communication between a mobile unit (UE) and a gateway general packet radio system (GGRS) support node (GGSN) wherein resource reservations setup protocol (RSVP) capabilities are shared by a session setup mechanism, preferably session initiation protocol (SIP) in which RSVP capabilities of the originating UE and GGSN are defined and exchanged. In addition, the SIP identifies the preferred RSVP mode of operation by negotiations. The SIP is utilized to indicate that: the UE is RSVP capable; those media flows which are based on RSVP; the preferred mode of operation i.e. either UE based RSVP signaling or GGSN proxy based RSVP signaling and to communication a final setup mode for RSVP signaling to the UE from policy control function (PCF). The SIP enables the UE and network to indicate intended quality of service (QoS) protocol during call setup.

Abstract: A wireless communication method and system for initiating the establishment, modification and termination of broadcast and multicast bearer services using an Internet protocol (IP) multimedia subsystem (IMS). The system includes an IMS domain, a multimedia broadcast/multicast services (MBMS) application server (AS) and a cellular network. The IMS domain includes an IMS AS, a media resource function control (MRFC) server and a media resource function processor (MRFP). A user equipment (UE) sends a session initiation protocol (SIP) INVITE message to the MRFC server via the cellular network, a proxy call state control function (P-CSCF) of the IMS AS and a serving call state control function (S-CSCF) of the IMS AS, for establishing an IMS-based MBMS session to the MBMS AS. If the UE is allowed to establish the IMS-based MBMS session, the UE receives multimedia support services to establish uplink and downlink connectivity to the MBMS AS.

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.

Abstract: A method and apparatus for supporting routing area update procedures in a single tunnel general packet radio services (GPRS)-based wireless communication system are disclosed. A wireless transmit/receive unit (WTRU) sends a routing area update request message to a serving general packet radio service (GPRS) support node (SGSN) via a radio network controller (RNC). The SGSN sends an update packet data protocol (PDP) context request message to a gateway GPRS support node (GGSN). The GGSN sends an update PDP context response message to the SGSN. The SGSN sends a tunnel establishment request message to the RNC and a single tunnel is established between the RNC and the GGSN. For handover operations, a previous single tunnel established between the GGSN and another RNC is released and the routing area update is accepted and completed.

Abstract: The present invention relates to a method and apparatus for performing handover between a universal mobile telecommunication system (UMTS) terrestrial radio access network (UTRAN), and an evolved-UTRAN (E-UTRAN) based system. The wireless communication system includes a UTRAN, an E-UTRAN, a 2G/3G core network, 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 to the E-UTRAN, and visa versa. The 2G/3G core network and the LTE core network are linked by a Gn interface.

Abstract: A wireless communication method and system for performing dual mode paging over a wireless communication network having both a second-generation/third-generation (2G/3G) radio access network (RAN) and an evolved-universal mobile telecommunication system (UMTS) terrestrial radio access network (E-UTRAN). When a wireless transmit/receive unit (WTRU) registers or originates traffic with an evolved network, no additional signaling is required Otherwise, the WTRU is paged via both of the 2G/3G RAN and the E-UTRAN, depending on the response from the WTRU, data is forwarded to the WTRU via the 2G/3G RAN or the E-UTRAN.

Abstract: A wireless system performs interworking of a combined circuit switched (CS) session and an IP multimedia core network subsystem (IMS) session between two users having different content capabilities through an interworking circuit switched (CS) and IMS function (IMS CS IWF).

Abstract: Method and apparatus for attaching an IMS enabled wireless transmit/receive unit (WTRU) to a long term evolution (LTE) wireless network. With one attach request, the WTRU registers and authenticates itself to the network, obtains an IP address allocation, and SIP registration.

Abstract: In a communication between a mobile unit (UE) and a gateway general packet radio system (GGRS) support node (GGSN) wherein resource reservations setup protocol (RSVP) capabilities are shared therebetween by a session setup mechanism, preferably session initiation protocol (SIP) in which RSVP capabilities of the UE and GGSN are defined and exchanged. In addition, the SIP is utilized to identify the preferred RSVP mode of operation by negotiations. The SIP is utilized to indicate that: the UE is RSVP capable; those media flows which are based on RSVP; the preferred mode of operation i.e. either UE based RSVP signaling or GGSN proxy based RSVP signaling and to communication a final setup mode for RSVP signaling to the UE from policy control function (PCF). The SIP may also be employed to enable the UE and network to indicate intended quality of service (QoS) protocol during a call setup procedure.

Abstract: A method and system for reporting short message (SM) capability over an IP multimedia subsystem (IMS) using a session initiation protocol (SIP) are disclosed. A wireless transmit/receive unit (WTRU) registers with a core network and sends a message indicating its SM capability via the IMS to the core network. The core network then updates the WTRU capabilities based on the message and routes an SM to the WTRU via the IMS.

Abstract: Apparatus and method for providing an automatic handoff process of a dual-mode user equipment (UE) from either a wireless local area network (WLAN) to a universal mobile telecommunications system (UMTS) or from a UMTS to a WLAN. Handoffs may be initiated by the UE, based upon user preference, signal quality, comparison of location coordinates of the UE and the system to be switched to or signal quality. The available channels of one system may be sent to the UE by the other system or the UE may monitor channels of the system to be switched to and lock on to one. The handoff may also be initiated by the UMTS, the selection being power-based.

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.

Abstract: A method and system for supporting an evolved universal mobile telecommunication systems (UMTS) terrestrial radio access network (E-UTRAN) are disclosed. The system includes a wireless transmit/receive unit (WTRU), a UTRAN and an E-UTRAN. The UTRAN sends to the WTRU a list of available radio access technologies in a coverage area of the UTRAN. The list includes information related to the E-UTRAN. The WTRU receives the list and may initiate a handoff based on the list. The WTRU then sends its multi-mode/multi-RAT capability information including the E-UTRAN capability to the UTRAN. The UTRAN then sends a measurement capability message to the WTRU. The measurement capability message includes parameters necessary for performing measurements on an E-UTRAN channel. The WTRU performs measurements based on the measurement capability message and reports measurement results to the UTRAN. The UTRAN may initiate a handoff to the E-UTRAN based on the measurement results.

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.

Abstract: A method for performing an inter-technology handover in a wireless communication system in which a mobile subscriber station (MSS) changes base stations (BS) begins by locating one or more target BSs that the MSS can handover to. The technology used by each target BS is identified, and the technology supported by the MSS is determined. A handover of the MSS is performed to a target BS with which the MSS can communicate.

Abstract: A method and system for reporting evolved universal mobile telecommunication systems (UMTS) terrestrial radio access network (E-UTRAN) capabilities are disclosed. A wireless transmit/receive unit (WTRU) sends a first message to a core network (CN) to report the E-UTRAN capabilities of the WTRU. The CN then updates the WTRU capabilities based on the first message. The first message may include a radio access capability information element (IE) which carries information related to E-UTRAN capabilities of the WTRU and/or a network capability IE which carries information regarding network capabilities of the WTRU. The CN may send a second message to the WTRU to report network capabilities with respect to the radio access networks (RANs) to which the core network is connected and services that can be provided over the E-UTRAN.

Abstract: A format converter for use with a universal mobile telecommunications system (UMTS) having a transceiver, a wireless local area network (WLAN) having an access point (AP) and a wireless terminal, for providing access to the UMTS by the terminal. The format converter comprises a WLAN transceiver for sending and receiving messages to and from the AP; a UMTS transceiver for sending and receiving messages to and from the transceiver in the UMTS; and a translator for translating WLAN messages to UMTS format and UMTS messages to WLAN format.