Method and apparatus for using control plane to transmit and receive data

Patent metadata

Field	Value
Publication number	US-9398555-B2
Application number	US-201213464132-A
Country	US
Kind code	B2
Filing date	May 4, 2012
Priority date	May 6, 2011
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

Methods and apparatus are described for transmitting and receiving data by a wireless transmit/receive unit (WTRU) over the control plane. The methods may receive data without the use of an Internet Protocol (IP) address. In an example method, a WTRU may enter an evolved packet system (EPS) mobility management (EMM)-registered control plane only (CPO) state after receiving an attach accepted message for CPO operation, and enter an EMM-deregistered state after receiving a detach message, a tracking area update (TAU) reject message or an attach reject message. In another method, a WTRU may switch between operational modes that use an IP address and a user plane to transmit and receive data, and the CPO mode.

First claim

What is claimed is:

1. A wireless transmit/receive unit (WTRU) comprising:
a transceiver, a memory and a processor configured to establish a packet data network (PDN) connection with a wireless network;
the transceiver, the memory and the processor, on a condition that the WTRU has a small amount of data to transmit, further configured to transmit a radio resource control (RRC) connection request message including a corresponding indication for a control plane only connection; and
the transceiver, the memory and the processor further configured to transmit the small amount of data over a control plane via a non-access stratum (NAS) message, wherein a user plane connection is not established with the wireless network and other user data is not exchanged with the wireless network.

2. The WTRU of claim 1 wherein the transceiver, the memory and the processor are configured to establish the PDN connection by establishing an IP address.

3. A method comprising:
establishing, by a wireless transmit/receive unit (WTRU), a packet data network (PDN) connection with a wireless network;
on a condition that the WTRU has a small amount of data to transmit, transmitting, by the WTRU, a radio resource control (RRC) connection request message including a corresponding indication for a control plane only connection; and
transmitting, by the WTRU, the small amount of data over a control plane via a non-access stratum (NAS) message, wherein a user plane connection is not established with the wireless network and other user data is not exchanged with the wireless network.

4. The method of claim 3 wherein the establishing the PDN connection includes establishing an IP address.

5. An evolved NodeB (eNodeB) comprising:
a transceiver, a memory and a processor configured to exchange messages with a wireless transmit receive unit (WTRU), wherein the exchanges messages establish a packet data network (PDN) connection with the WTRU;
the transceiver, the memory and the processor further configured to receive a radio resource control (RRC) connection request message including a corresponding indication for a control plane only connection; and
the transceiver, the memory and the processor further configured to receive a small amount of data over a control plane via a non-access stratum (NAS) message, wherein a user plane connection is not established with the WTRU and other user data is not exchanged with the WTRU.

Assignees

• Watfa Mahmoud
• Olvera-Hernandez Ulises
• Adjakple Pascal M
• Liu Kai
• Wang Peter S
• Ahmad Saad
• Aghili Behrouz
• Interdigital Patent Holdings

Inventors

• Watfa Mahmoud
• Olvera-Hernandez Ulises
• Adjakple Pascal M
• Liu Kai
• Wang Peter S
• Ahmad Saad
• Aghili Behrouz

Classifications

• H04W60/04 Primary

  using triggered events · CPC title

• H04W84/042

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• H04W76/046

  Electricity · mapped topic

• H04W76/022

  Electricity · mapped topic

• H04W76/12

  Setup of transport tunnels · CPC title