Handover signaling assistance
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsTorsten Dudda, Stefan Wager, Fredrik Gunnarsson
Life of this patent
Estimating the term…
Abstract
The present invention relates to base stations, methods in a base station, terminals and methods in a terminal for supporting a handover. The invention further relates to computer programs for implementing, in the respective nodes of a wireless network, functionality for supporting a handover. According to one embodiment, a method in a source base station for supporting a handover of a terminal from the source base station to a target base station is provided. The method includes sending to an assisting base station a request for assisting the handover, and communicating handover control information between the terminal and the source base station via the assisting base station.
Claims26
A method in a source base station for supporting a handover of a terminal from the source base station to a target base station, the method comprising:
- Sending, by the source base station to an assisting base station, a request for assisting the handover;
- Receiving, in response to the request for assisting, by the source base station from the assisting base station, a configuration of a connection between the terminal and the assisting base station;
- Sending, by the source base station, the received configuration to the terminal for configuration of the connection between the terminal and the assisting base station;
- and
- Communicating handover control information between the terminal and the source base station via the assisting base station.
A method in an assisting base station for supporting a handover of a terminal from a source base station to a target base station, the method comprising:
- Receiving, by the assisting base station from a source base station, a request for assisting the handover;
- and
- Sending, in response to the request for assisting, from the assisting base station to the source base station, a configuration of a connection between the terminal and the assisting base station for conveying to the terminal;
- Receiving, by the assisting base station from the source base station, first handover control information;
- Sending, from the assisting base station to the terminal, the first handover control information received from the source base station;
- Receiving, by the assisting base station from the terminal, second handover control information;
- and
- Sending, to the source base station, the second handover control information received from the terminal.
A method in a terminal configured for communicating with a source base station and an assisting base station, for supporting a handover of the terminal from the source base station to a target base station, the method comprising:
- Receiving, by the terminal from the source base station, a configuration of a connection between the terminal and the assisting base station, wherein the configuration is received by the source base station from the assisting base station in response to a request for assisting;
- and
- Communicating handover control information between the terminal and the source base station via the assisting base station.
A source base station for supporting a handover of a terminal from the source base station to a target base station, comprising:
- a radio interface for communicating with the terminal;
- an interface for communicating with a target base station and an assisting base station;
- and
- a processor configured to control:
- Sending, to an assisting base station, a request for assisting the handover;
- Receiving, in response to the request for assisting, from the assisting base station, a configuration of a connection between the terminal and the assisting base station;
- Sending the received configuration to the terminal for configuration of the connection between the terminal and the assisting base station;
- and
- Communicating handover control information between the terminal and the source base station via the assisting base station.
An assisting base station for supporting a handover of a terminal from a source base station to a target base station, comprising:
- a radio interface for communicating with one or more terminals;
- an interface for communicating with one or more base stations;
- and
- a processor configured to control:
- Receiving, from a source base station, a request for assisting the handover;
- Sending, in response to the request for assisting, to the source base station, a configuration of a connection between the terminal and the assisting base station for conveying to the terminal;
- Receiving, from the source base station, first handover control information;
- Sending, to the terminal, the first handover control information received from the source base station;
- Receiving, from the terminal, second handover control information;
- and
- Sending, to the source base station, the second handover control information received from the terminal.
A terminal comprising:
- a radio interface for connecting to one or more base stations;
- and a processor configured to control:
- Receiving, from a source base station, a configuration of a connection between the terminal and an assisting base station, wherein the configuration is received by the source base station from the assisting base station in response to a request for assisting;
- and
- Communicating handover control information between the terminal and the source base station via an assisting base station.
Dependencies are inferred from the claim text.