US Patent No. 9,750,065

METHOD AND TELECOMMUNICATIONS NODE FOR CONTROLLING AN ATTACH STATE OF A USER EQUIPMENT


Patent No. 9,750,065
Issue Date August 29, 2017
Title Method And Telecommunications Node For Controlling An Attach State Of A User Equipment
Inventorship Elena Mancevska, Voorburg (NL)
Maurice Hiep, Wassenaar (NL)
Annemieke Kips, Leiden (NL)
Assignee Koninklijke KPN N.V., The Hague (NL)

Claim of US Patent No. 9,750,065

1. A method for controlling an attach state of a user equipment in an attach control node of a telecommunications system further
comprising a subscriber database containing subscription data of the user equipment, the method comprising:
receiving an attach request from the user equipment in the attach control node, the attach request containing a partial transfer
indication;

receiving in a first transfer stage a first set of subscription data from the subscriber database and in response to the partial
transfer indication storing the first set of subscription data in the attach control node, wherein the first set of subscription
data is insufficient for enabling establishing a communication session between the user equipment and the telecommunications
system, resulting in a partial attach state for the user equipment in the telecommunications system; and

in the partial attach state, receiving from the user equipment a restricted set of data by using a short message service or
via a control plane.