US Patent No. 10,142,970

RLC RECONFIGURATION DURING CELL RESELECTION


Patent No. 10,142,970
Issue Date November 27, 2018
Title Rlc Reconfiguration During Cell Reselection
Inventorship Bindhya Vashini Tiwari, Vantaa (FI)
Sheyam Lal Dhomeja, Espoo (FI)
Assignee Nokia Solutions and Networks Oy, Espoo (FI)

Claim of US Patent No. 10,142,970

1. An apparatus, comprisingat least one processor; and
at least one memory including computer program code,
the at least one memory and the computer program code configured, with the at least one processor, to cause the apparatus to perform at least the following:
send, as part of a radio resource control reconfiguration procedure for a reconfiguration of a terminal, a first reconfiguration message to the terminal to reconfigure radio resource control configuration of the terminal, wherein the first reconfiguration message provides for the terminal a first configuration of a first radio bearer in a first cell and is based on a first capability of a forward access channel of the first cell;
detect whether or not the terminal has completed the reconfiguration based on the first reconfiguration message;
receive, prior to detection of completion of the reconfiguration based on the first reconfiguration message, a cell update message from the terminal, wherein the cell update message indicates that the terminal has performed a cell update from the first cell to a second cell different from the first cell;
in response to a determination the second cell has a same capability of the forward access channel as the first capability of the forward access channel of the first cell, sending a cell update confirmation to the terminal with radio link control information for the cell update to the second cell; and
otherwise, in response to a determination the second cell has a second capability of the forward access channel different from the first capability of the forward access channel of the first cell, performing the following:
sending, in response to the terminal completing the reconfiguration and the cell update message being received, a cell update confirmation message without radio link control information for the cell update to the second cell;
sending, in response to a message from the terminal that a cell update to the second cell is confirmed, a second reconfiguration message to the terminal, wherein the second reconfiguration message provides second configuration of the second radio bearer in the second cell at least by providing the radio link control information for the cell update to the second cell.