US 6,618,589 B1 · Method for performing cell and URA updates in a radio access network

Abstract

A method for performing Cell-Updates or URA-Updates in a mobile communication system is disclosed, whereby a User Equipment (UE) sends a Cell-Update message or URA-Update message to an SRNC. The-transported Cell-Update message or URA-Update message includes a sequence counter which is incremented each time the UE sends such a message to the SRNC. The SRNC stores the value of the sequence counter for each Cell-Update message or URA-Update message received and acknowledged. If the SRNC receives a Cell-Update message or URA-Update message with a corresponding sequence counter value'that is lower than the sequence counter value stored for the previously received Cell-Update message or URA-Update message, then the SRNC ignores the received Cell-Update message or URA-Update message. Also, the SRNC does not store the sequence counter value for the ignored, received Cell-Update message or URA-Update message.

Claims38

Dependent claims

A method for performing mobile terminal movement updates in a cellular communication system, comprising the steps of:

in response to a predetermined movement, preparing a mobile terminal movement update message;
sequencing a counter by a predetermined value, said counter associated with said mobile terminal movement update message;
transmitting said mobile terminal movement update message and said sequenced counter value;
a network unit receiving said mobile terminal movement update message and said counter value;
said network unit determining whether said received counter value is not less than a stored counter value;
and
if said received counter value is not less than said stored counter value, storing said received counter value to replace said stored counter value.

4 more elements

Dependencies are inferred from the claim text.

Method for performing cell and URA updates in a radio access network

Life of this patent

Method for performing cell and URA updates in a radio access network

Life of this patent

Abstract

Claims38