METHOD AND SYSTEM FOR PERFORMING CELL UPDATE AND ROUTING AREA UPDATE PROCEDURES WHILE A WIRELESS TRANSMIT/RECEIVE UNIT IS IN AN IDLE STATE
First Claim
1. In a wireless communication system including a wireless transmit/receive unit (WTRU), an evolved Node-B (eNode-B) and a mobility management entity (MME)/user plane entity (UPE), a method of performing a cell update procedure while the WTRU is in an idle state, the method comprising:
- the WTRU transitioning from an idle state to an active state;
the WTRU sending a cell update message to the eNode-B;
the eNode-B forwarding the cell update message to the MME/UPE; and
the MME/UPE changing a state machine for the WTRU in the MME/UPE to an active state and taking an action based on the cell update message.
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Accused Products
Abstract
A method and system for performing cell update and routing area (RA) update procedures while a wireless transmit/receive unit (WTRU) is in an idle state in a third generation (3G) long term evolution (LTE) wireless communication system. When the WTRU receives a page message or has data to transmit while the WTRU is in an idle state, the WTRU transitions to an active state and sends a cell update message to an evolved Node-B (eNode-B). The eNode-B forwards the cell update message to a mobility management entity (MME)/user plane entity (UPE). The MME/UPE changes the state of the WTRU to an active state and takes an action based on the cell update message. When the WTRU moves to a new RA, the WTRU sends an RA update message to the MME/UPE via the eNode-B. The MME/UPE updates the RA of the WTRU based on the RA update message.
40 Citations
30 Claims
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1. In a wireless communication system including a wireless transmit/receive unit (WTRU), an evolved Node-B (eNode-B) and a mobility management entity (MME)/user plane entity (UPE), a method of performing a cell update procedure while the WTRU is in an idle state, the method comprising:
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the WTRU transitioning from an idle state to an active state; the WTRU sending a cell update message to the eNode-B; the eNode-B forwarding the cell update message to the MME/UPE; and the MME/UPE changing a state machine for the WTRU in the MME/UPE to an active state and taking an action based on the cell update message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In a wireless communication system including a wireless transmit/receive unit (WTRU), an evolved Node-B (eNode-B) and a mobility management entity (MME)/user plane entity (UPE), a method of performing a routing area (RA) update procedure while the WTRU is in an idle state, the method comprising:
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the WTRU in an idle state reading system information transmitted by the eNode-B; the WTRU transitioning from an idle state to an active state if it is determined that the WTRU is in a new RA based on the system information; the WTRU sending an RA update message to the eNode-B; the eNode-B forwarding the RA update message to the MME/UPE; and the MME/UPE updating the RA for the WTRU based on the RA update message. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A wireless communication system configured to perform a cell update procedure while a wireless transmit/receive unit (WTRU) is in an idle state, the system comprising:
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a WTRU configured to transition from an idle state to an active state and send a cell update message to an evolved Node-B (eNode-B); the eNode-B configured to forward the cell update message to a mobility management entity (MME)/user plane entity (UPE); and the MME/UPE configured to change a state machine for the WTRU in the MME/UPE to an active state and take an action based on the cell update message. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A wireless communication system configured to perform a routing area (RA) update procedure while a wireless transmit/receive unit (WTRU) is in an idle state, the system comprising:
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a WTRU configured to read system information transmitted by an evolved Node-B (eNode-B) while the WTRU is in an idle state, transition from an idle state to an active state if it is determined that the WTRU is in a new RA based on the system information, and send an RA update message to the eNode-B; the eNode-B configured to forward the RA update message to a mobility management entity (MME)/user plane entity (UPE); and the MME/UPE configured to update an RA for the WTRU based on the RA update message. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification