Patent ID: 11864149
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A user equipment (UE), the UE comprising:
a receiver;
a transmitter; and
processing circuitry, wherein the UE is operable to perform a method comprising:
employing the transmitter to transmit towards a signal handling function (SHF) a request message to register the UE, the request message including a registration type Information Element (IE) indicating that either i) the request message is for an initial registration if it is determined that the UE is not in a registered state or ii) the request message is not for an initial registration if it is determined that the UE is in a registered state;
after transmitting the request message, employing the receiver to receive an identity request transmitted by the SHF, the identity request requesting that the UE transmit an identity response comprising a permanent identifier (PID) allocated to the UE;
in response to the identity request, employing the transmitter to transmit to the SHF the identity response comprising the PID allocated to the UE; and
after transmitting the identity response, employing the receiver to receive a registration accept message transmitted by the SHF, wherein
the request message transmitted by the UE towards the SHF further comprises:
i) an identifier allocated to the UE, wherein the identifier is a temporary identifier (TID); and
ii) a message type identifier separate from the registration type IE wherein the message type identifier identifies the request message as a registration request message.