3GPP TS 24301 PDF

3GPP TS (click spec number to see fileserver directory for this spec) Work item which gave rise to this spec: (click WI code to see Work Item details in . Encoding Messages Other Than TSMsg_PDU. .. the Methodology section, there are several PDU types defined for GERAN RRC messages (3GPP TS. The 3GPP scenarios for transition, described in [TR], can be Note 1: The UE receives the PDN Address Information Element [TS] at the end of.

Author: Shaktilkree Gardazil
Country: Latvia
Language: English (Spanish)
Genre: Music
Published (Last): 19 August 2007
Pages: 239
PDF File Size: 12.34 Mb
ePub File Size: 11.77 Mb
ISBN: 284-3-29768-663-1
Downloads: 96004
Price: Free* [*Free Regsitration Required]
Uploader: Zugar

The most relevant factor is essentially the same as the reason for IPv6 not being deployed in other networks either, i. We also discuss countermeasures for the vulnerabilities that made our attacks possible.

Various combinations of subscriber provisioning regarding IP versions are discussed further in Section 8. However, IPv6 deployment in commercial networks remains low. We performed a measurement study on LTE networks of three major operators to understand GUTI allocations, Smart Paging, and mapping of tracking area and cell dimensions for the purpose of examining the feasibility aspects of location leak attacks.

ESM message container

In this section, we discuss the feasibility of both location leak and DoS attacks against popular LTE smartphones and methods to amplify the coverage range of our attacks. If the UE is detached from the network for a certain duration as a result of a TAU reject messages, it should reset the configuration settings in the USIM or baseband to re-attach itself with the network without bothering the user, i. Attach and Ta every 1 hour. Patent documents cited in the description.

How LTE Stuff Works?: November

Thus it only allows the attacker to locate a subscriber within a large e. Otherwise the attacker needs to move to other cells and repeat the same procedure. While there is interest in offering roaming service for IPv6-enabled UEs and subscriptions, not all visited networks are prepared for IPv6 outbound roamers:. In addition, a lot of work has been invested by the industry to investigate different transition and deployment scenarios over the years. Network operators would simply re-allocate GUTIs often enough to avoid tracking.

The network uses the Device properties IE for core-network congestion handling and for charging purposes. Figure 1 illustrates the APN-based network connectivity concept. In this section, we show how the approximate location of an LTE subscriber inside an urban area can be inferred by applying a set of novel passive, semi-passive, and active attacks.

Specifically, the request comprises an RRC establishment cause which is set to “Emergency call”. Prefix Delegation IPv6 prefix delegation is a part of Release and is not covered by any earlier releases. The observed GUTIs undergo a set intersection analysis where we apply the method proposed by Kune et. This implies that all operators are using Smart Paging.

The current generation of deployed networks can support dual-stack connectivity if the packet core network elements, such as the SGSN and GGSN, have that capability. Then we walked in all directions from the reference point till reaching the cell edge.

Click to see all versions of this specification. Specification withdrawal has failed. The user plane refers to data traffic and the required bearers for the data traffic.

User-plane traffic can be confidentiality protected.

If the mapping is successful in a particular cell where the attacker is, the presence of the subscriber is confirmed. The Home Location Register HLR tw a pre-Release-5 database but is also used in Release-5 and later networks in real deployments that contains subscriber data and information related to call routing.

When there is an incoming call for UE, the MME rejects it and informs the cause to the subscriber who is calling. Other types of configurations are not standardized. In the last attack, the 3gppp can selectively limit a UE only to some types of services e. Our attacks are based on vulnerabilities we discovered during a careful analysis of LTE access network protocol specifications.

This also allows independent scaling, growth of traffic throughput, and control-signal processing. This will also ensure that legacy devices and applications continue to work with no impact.

The distance estimates are calculated as d1, d2, and d3 for three neighboring base stations. Similarly, signal coverage area of our rogue eNodeB could be increased to demonstrate feasibility of the attack.

Practical Attacks Against Privacy and Availability in 4G/LTE Mobile Communication Systems

Possible existing IPv4-only services and applications requiring direct connectivity can be ported to IPv6. The results are summarized as follows:. Stage 3 for Session management, bearer control and QoS aspects.

System enhancements for the use of IMS services in local breakout. Generally, machines, nowadays, are equipped with computing processors and software to accommodate us with more intelligence-based services. In particular, our eNodeB impersonates a real network operator and forces UEs to attach to it.