Apparatus and method for determining uplink ciphering...

Details Apparatus and method for determining uplink ciphering... Apparatus and method for determining uplink ciphering...

2004-08-12

2010-11-02

Zand, Kambiz (Department: 2434)

Cryptography

Communication system using cryptography

Wireless communication

C380S247000

Reexamination Certificate

active

07826617

ABSTRACT:
The details of an apparatus and method for determining uplink ciphering activation time in universal mobile telecommunications system user equipment are disclosed herein. The ciphering activation time is determined for radio bearers other than RB2by measuring the data rate on each target radio bearer during the time that it takes for a polling or RRC message sent from the user equipment UE to be acknowledged by the network UTRAN. For RB2, the uplink ciphering activation time is determined by taking into account the size of the RRC response message and the data already queued on RB2for transmission.

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XP-002307355, Jun. 2003, 3GPP TS 25.331.

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