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Non-access stratum architecture (NAS) and protocol enhancements for long term evolution (LTE) mobile units

A non-access layer and security technology, applied in security devices, electrical components, wireless network protocols, etc., can solve problems such as non-existence

Active Publication Date: 2010-09-15
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No functionality exists today for NAS to do this
[0015] Finally, if MME relocation is allowed, then MME relocation may occur during handover

Method used

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  • Non-access stratum architecture (NAS) and protocol enhancements for long term evolution (LTE) mobile units
  • Non-access stratum architecture (NAS) and protocol enhancements for long term evolution (LTE) mobile units
  • Non-access stratum architecture (NAS) and protocol enhancements for long term evolution (LTE) mobile units

Examples

Experimental program
Comparison scheme
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Embodiment

[0100] CLAIMS 1. A method of processing non-access stratum (NAS) messages in a wireless transmit / receive unit (WTRU), the method comprising:

[0101] generate NAS messages; and

[0102] Whether to encrypt the NAS message is determined based on an indicator field in a header of the NAS message.

[0103] 2. A method of processing non-access stratum (NAS) messages in a wireless transmit / receive unit (WTRU), the method comprising:

[0104] generate NAS messages; and

[0105] Whether to encrypt the NAS message is determined based on a protocol discriminator (PD) of the NAS message.

[0106] 3. A method of processing non-access stratum (NAS) messages in a wireless transmit / receive unit (WTRU), the method comprising:

[0107] generate NAS messages; and

[0108] Whether to encrypt the NAS message is determined based on the type of the NAS message.

[0109] 4. A method of processing non-access stratum (NAS) messages in a wireless transmit / receive unit (WTRU), the method comprising...

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PUM

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Abstract

A method and apparatus performs processing of the non-access stratus (NAS) layer (layer 3) in long term evolution (LTE) wireless transmit / receive units (WTRUs), which allows the NAS protocol layer to route layer 3 messages to the correct NAS entity, and to encode new NAS message types and information elements. A new architecture is presented that enables NAS security. When a NAS message is generated, a determination is made as to whether or not to cipher, de-cipher and / or integrity check the NAS message based on at least one of a protocol discriminator (PD) of the NAS message, an indicator field in a header of the NAS message, the type of the NAS message, a NAS security state variable, and an indication by an upper layer protocol. The NAS security state variable indicates whether NAS security is currently active or not and may comprise one bit.

Description

technical field [0001] This application relates to wireless communications. Background technique [0002] The current effort of the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) project is to introduce new technologies, new architectures and new methods related to LTE setup and configuration to provide improved spectral efficiency, reduced latency, radio resource The better utilization of , thus bringing faster user experience and richer applications and services at a lower cost. [0003] The LTE Layer 3 (L3) architecture can be considered an evolution of the existing L3 architecture for General Packet Radio Service (GPRS) enabled Wireless Transmit / Receive Units (WTRUs) (ie, base stations). LTE defines new Mobility Management (MM) concepts (eg the concept of Tracking Areas replacing Routing Areas) and new MM procedures (eg multiple Tracking Areas can be allocated in a Tracking Area Update procedure). These new procedures will be described in more deta...

Claims

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Application Information

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IPC IPC(8): H04W12/02H04W12/10
CPCH04W12/10H04W12/02H04W12/00H04W80/02H04W12/037H04L69/14H04W12/08
Inventor S·索马桑德朗R·P·穆克吉
Owner INTERDIGITAL PATENT HLDG INC
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