Mobile telecommunications system
AssigneeNEC Corporation
InventorsGina Parmar, Robert Patterson
Life of this patent
Estimating the term…
Abstract
A method of processing a handover request from a base station controller (BSC) of a GSM (Global System for Mobile communication)-type network. The method comprises the steps of passing a handover request with GSM-type parameters from a base station controller (BSC) through a Master Switching Center (MSC) of the GSM-type network to a UMTS core network (CN) and to a Radio Network Controller (RNC) of the UMTS (Universal Mobile Telecommunications System) network, translating the GSM-type parameters to UTRAN parameters in the Radio Network Controller (RNC), and allocating UTRAN resources in response to the translated parameters.
Claims19
A method of processing a handover request from a base station controller of a Global System for Mobile communication network, comprising:
- passing a handover request with Global System for Mobile communication parameters from a base station controller through a master switching center of the Global System for Mobile communication network to a UMTS core network and through the UMTS core network while being maintained in said Global System for Mobile communication parameters to a radio network controller located within the UMTS core network;
- translating, in the radio network controller, the Global System for Mobile communication parameters to UTRAN parameters;
- and
- allocating UTRAN resources in response to the translated parameters.
A method of establishing UMTS communication with user equipment following receipt by a radio network controller of a Global System for Mobile communication handover request, comprising:
- setting up a radio link to a node in the radio network controller;
- setting up data transport between the radio network controller and the UMTS core network following acknowledgement by the radio network controller of the radio link setup from the node;
- and
- translating, in the radio network controller, Global System for Mobile communication parameters to UTRAN parameters.
A method of establishing UMTS communication between user equipment and a UMTS network, wherein the user equipment is in communication with a Global System for Mobile communication network, comprising:
- forwarding UTRAN parameter information to the user equipment via the Global System for Mobile communication network;
- and
- interpreting the UTRAN parameter information and initiating communication with the UMTS network in the user equipment;
- supplying a list of potential UTRAN access points to the user equipment;
- establishing communication between the users equipment and at least one UTRAN access point;
- and
- deleting from said list potential UTRAN access points the access points with which satisfactory communication is not possible.
A method of handing over a Global System for Mobile communication call to a UMTS network comprising:
- passing a handover request from the Global System for Mobile communication network to a radio network controller of the UMTS network;
- interpreting the request in the radio network controller;
- initiating call setup;
- performing radio link setup;
- performing data link to the UMTS core network;
- forwarding handover information containing UTRAN parameters to user equipment, and
- setting up a UMTS call based on the UTRAN parameters in the user equipment,
- wherein the UTRAN parameters pass transparently through the Global System for Mobile communication network.
A radio network controller of a UMTS network comprising:
- means for translating Global System for Mobile communication call parameters to UTRAN parameters;
- means for allocating UTRAN resources corresponding to the Global System for Mobile communication call parameters;
- and
- means for enabling handover of a call from a Global System for Mobile communication network to the UMTS network.
Dependencies are inferred from the claim text.