Back to results
US 2001/0018345 A1Published application
Cell update in a cellular communications system
AssigneeNokia Corporation
InventorsFabio Longoni, Atte Lansisalmi, Jari Hartikainen
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeNokia Corporation
InventorsFabio Longoni, Atte Lansisalmi, Jari Hartikainen
Estimating the term…
The present invention relates to a method and arrangement for performing a cell update procedure in a cellular communications system. The cellular communication system comprises a plurality of cells, and a first and a second network controllers. A station is initially on a first cell controlled by the first controller and then in a second cell controlled by the second controller. When changing from one cell to another the station sends cell update information and other information to the second controller which then stores the received other information and send to the first controller a message indicating that information has been received at the second controller from the station. A network element for use in the above method is also disclosed.
A method of performing a cell update procedure for a station in a cellular communications system, the cellular communication system comprising a plurality of cells, and a first and a second network controllers, said station initially being on a first cell controlled by the first controller and then in a second cell controlled by the second controller, the method comprising the steps of:
A method according to any of the preceding claims, wherein a user plane connection between the first controller and the second controller is established only in the event that the functions of the first controller are not relocated.
A method according to any of the preceding claims, wherein the cellular communications system is a code division multiple access network.
A method according to any of the preceding claims, wherein the second cell is accessed by said station over a data channel.
A method according to any of the preceding claims, wherein the message sent from the second controller comprises the identity of the station used by the first controller, the identity of the station used by the second controller and information identifying the second cell.
A method according to any of the preceding claims, wherein said first and second controllers comprise radio network controllers.
A method according to any of the preceding claims, wherein said first controller comprises a serving radio network controller.
A method according to any of the preceding claims, wherein said station comprises a mobile station.
A method according to any of the preceding claims, wherein said other information comprises user data.
An arrangement in a cellular communications system, the cellular communications system comprising a plurality of cells, a first controller controlling a first cell of the plurality of cells, a second controller controlling a second cell of the plurality of cells, and a station capable of communicating with said controllers, comprising:
An apparatus for use in a cellular communications system, the cellular communications system comprising a plurality of cells, a first controller controlling a first cell of the plurality of cells, a second controller controlling a second cell of the plurality of cells, and a station capable of communicating with said controllers, wherein the cellular communications system is such that when the station changes from communicating with the first controller to communicate with the second controller cell update information and other information is sent from the station to the second controller, said apparatus comprising:
Dependencies are inferred from the claim text.