Configuration of HS-DSCH serving cell change improvements

摘要

The present solution relates to a method in a user equipment for configuring a cell change procedure to be used for handover in a wireless communication network. The user equipment is situated in a serving cell and comprises an active set of cells. The active set of cells comprises a list of cells to which the user equipment can move from the serving cell. The user equipment sends a request to a network controller comprised in the wireless communication network to add at least one further cell to the active set. The user equipment then receives the requested active set update from the network controller. The received active set update comprises the at least one further cell to be added to the active set and a list of cells to which a modified cell change procedure shall be used for handover. A neighbor cell which is stronger than a current serving cell is detected. This detected stronger neighbor cell is matching with the received list of modified cell change procedure cells, and the modified cell change procedure for the handover to the stronger neighbor cell is applied if the stronger neighbor cell is found matching a cell on the list.

主权项

1. A method in a user equipment for configuring a cell change procedure to be used for handover in a wireless communication network, the user equipment being situated in a serving cell and utilizing a list of cells belonging to an active set, said list including cells to which the user equipment can move from the serving cell, the method comprising:
sending a measurement report to a network controller in the wireless communication network that informs the network controller it can add at least one further cell to the active set; receiving, responsive to said measurement report, an active set update from the network controller, the active set update comprising information about the at least one further cell to be added to the active set and an information element indicating whether the at least one further cell is to be added to a list of cells for which a modified cell change procedure shall be used for hand over; detecting a neighbor cell with higher signal strength than the serving cell; determining whether the neighbor cell matches a cell in the list of cells for which the modified cell change procedure shall be used; and applying the modified cell change procedure for handover to the neighbor cell if the neighbor cell matches a cell on that list.