Wireless transmit receive unit having a transition state for transitioning from monitoring to duplex connected states and method

A User Equipment (UE) for wireless communication with a UMTS Terrestrial Radio Access Network (UTRAN) comprising:

• a selectively configurable transceiver having a UTRAN connected mode defined by a plurality of functional states including:
• at least one monitoring state wherein the transceiver is configured for only downlink communications;
• a duplex state wherein the transceiver is configured for both uplink and downlink communications in which the UE has received a temporary identifier;
• and
• a transition state in which the WTRU is enabled to request the temporary identifier required for the duplex state wherein the transceiver is configured to send only the uplink initiation communications and is otherwise configured only for downlink communications;
• the transceiver configured to transition from a monitoring state into the transition state upon occurrence of predefined UE events that are each associated with a respective uplink procedure initiation communication of a predefined procedure where at least one procedure requests a network response that includes the temporary identifier;
• and
• the transceiver configured to transition from the transition state into the duplex state such that after receiving a downlink response with the temporary identifier.

A method of wireless communication comprising:

• providing a wireless transmit/receive unit (WTRU) having a connected mode defined by a plurality of functional states including a monitoring state wherein the WTRU is configured for only downlink communications, a duplex state wherein the WTRU is configured for both uplink and downlink communications in which the WTRU has received a temporary identifier, and a transition state in which the WTRU is enabled to request the temporary identifier required for the duplex state wherein the UE is configured to send only predefined uplink initiation communications and is otherwise configured only for downlink communications;
• transitioning the WTRU from the monitoring state to the duplex state including:
• transitioning from the monitoring state to the transition state;
• transmitting an uplink procedure initiation communication requesting the temporary identifier while in the transition state;
• and
• receiving a downlink response with the temporary identifier.

A method of wireless communication comprising:

• providing a User Equipment (UE) configured for use with a UMTS Terrestrial Radio Access Network (UTRAN)and having a connected mode defined by a plurality of functional states including a monitoring state wherein the UE is configured for only downlink communications, a duplex state wherein the UE is configured for both uplink and downlink communications in which the UE has a temporary identifier, and a transition state in which the WTRU is enabled to request the temporary identifier required for the duplex state wherein the UE is configured to send only predefined uplink initiation communications and is otherwise configured only for downlink communications;
• and
• transitioning the UE from the monitoring state to the duplex state including:
• transitioning from the monitoring state to the transition state;
• transmitting an uplink procedure initiation communication requesting the temporary identifier while in the transition state;
• and after receiving a downlink response with the temporary identifier.

An application specific integrated circuit (ASIC) for a wireless transmit/receive unit (WTRU) the ASIC having circuitry configured to define a network connected mode having a plurality of functional states including:

• at least one monitoring state wherein the transceiver is configured for only downlink communications;
• a duplex state wherein the transceiver is configured for both uplink and downlink communications in which the WTRU has received a temporary identifier;
• and
• a transition state in which the WTRU is enabled to request the temporary identifier required for the duplex state wherein the transceiver is configured to send only uplink initiation communications and is otherwise configured only for downlink communications;
• the ASIC configured to transition the transceiver from a monitoring state into the transition state upon occurrence of predefined WTRU events that are each associated with a respective uplink procedure initiation communication of a predefined procedure where at least one procedure requests a network response that includes the temporary identifier;
• and
• the transceiver configured to transition from the transition state into the duplex state after receiving a downlink response with the temporary identifier.