Telefonaktiebolaget Lm Ericsson (publ)

G&ouml;ran Christersson Rune

Pontus Wallentin

Per Hans Ake Willars

Johan Rune Lagneborg

H&aring;kan Palm

Mikael Nordman

Gert Jan Van Lieshout

Gert-Jan Van Lieshout

Juan Noguera-Rodriguez

Alain Guy Maupin

A radio access network portion of a telecommunications network ( ) which serves a mobile station (MS) is connecting to a core network. The radio access network portion has plural base stations (BS) serving respective plural cells (C), as well as plural control nodes (RNCs). The control nodes include a first control node (RNC ) for controlling a first group of the plural base stations and a second control node (RNC ) for controlling a second group of the plural base stations. A multicell area (MCA) includes cells served by at least some of the first group of base stations and cells served by at least some of the second group of base stations. The radio access network portion of a telecommunications network further has a paging control node which stores information regarding the multicell area. To page the mobile station in the multicell area, the paging control node ( ) sends paging messages to each of the base stations serving the multicell area controlled by the paging control node: and ( ) sends a paging message to any other control nodes which control base stations serving cells in the multicell area. The paging control node determines to which base stations and other control node(s) it should send paging messages by consulting a paging table ( ). Preferably the paging control node is one of the control nodes of the radio access network. The paging control node is connected to the other control node(s) by an inter-control node link ( ) over which the paging message is sent.

Multicell area paging for cellular telecommunications system

A serving radio network controller (SRNC) of a radio access network assigns one or both of an appropriate temporary identifier (C-RNTI) and radio resources to a connection which is switched from a dedicated channel to a common channel in a cell handled by a drift radio network controller (DRNC). In one embodiment, the appropriate temporary identifier (C-RNTI) and the radio resources are obtained by the serving radio network controller (SRNC) upon execution of a channel switching process (e.g., when it has been determined that a connection should be switched from a dedicated channel to a common channel). In another embodiment of the invention, the serving radio network controller (SRNC) can obtain the appropriate temporary identifier (C-RNTI) and the radio resources prior to an actual channel switch operation. In both embodiments, the obtaining of the temporary identifier and/or radio resources can be part of a Common Transport Channel Resources Initialization procedure.

Switching from dedicated to common channels when radio resources are controlled by drift radio network

In a mobile communications network that employs diversity combining/splitting, CN-RNC interface streamlining can be accomplished more efficiently by reconfiguring the network diversity legs, which are combined into a single data stream by the serving radio network controller, wherein the serving radio network controller is directly connected to the core network via the CN-RNC interface. Reconfiguration of the network diversity legs is accomplished by releasing the transport level connections which support the network diversity legs prior to CN-RNC interface streamlining, and establishing new transport level connections to support the reconfigured, network diversity legs subsequent to CN-RNC interface streamlining. To establish new transport level connections, the serving radio network controller dispatches binding information to each of the destination nodes associated with the network diversity legs. The destination nodes then utilize the binding information to bind network resources to the transport level connections which support the reconfigured network diversity legs between the destination nodes and the serving radio network controller.

Reconfiguring diversity legs during CN-RNC interface streamlining

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.

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

A radio access network portion of a telecommunications network (,) which serves a mobile station (MS) is connecting to a core network. The radio access network portion has plural base stations (BS) serving respective plural cells (C), as well as plural control nodes (RNCs). The control nodes include a first control node (RNC,) for controlling a first group of the plural base stations and a second control node (RNC,) for controlling a second group of the plural base stations. A multicell area (MCA) includes cells served by at least some of the first group of base stations and cells served by at least some of the second group of base stations. The radio access network portion of a telecommunications network further has a paging control node which stores information regarding the multicell area. To page the mobile station in the multicell area, the paging control node (1) sends paging messages to each of the base stations serving the multicell area controlled by the paging control node; and (2) sends a paging message to any other control nodes which control base stations serving cells in the multicell area. The paging control node determines to which base stations and other control node(s) it should send paging messages by consulting a paging table (,). Preferably the paging control node is one of the control nodes of the radio access network. The paging control node is connected to the other control node(s) by an inter-control node link (,) over which the paging message is sent.

Growing community of inventors

Linköping, Sweden

Göran Christersson Rune

Growing community of inventors

Linköping, Sweden

G&ouml;ran Christersson Rune

Göran Christersson Rune