Cell re-selection utilizing system information length
View Patent ↗A method for performing cell re-selection in a cellular network includes a subscriber terminal measuring received powers of neighbour cells in accordance with system information received from a current cell, selecting one of the neighbour cells as a new cell, the subscriber terminal receiving a part of the system information sent by the new cell, calculating the time used for receiving the system information of the new cell by employing the length information in the system information part sent by the new cell, and deciding whether to continue the re-selection of said new cell on the basis of the calculated time.
1. A network part of a cellular network comprising:
means for sending system information of a new reselected cell from a base station of the new reselected cell to a subscriber terminal, a base station of a current cell having previously sent neighbor cell information to the subscriber terminal that identifies the new reselected cell;
means for placing information indicating a system information length into a part of the system information; and
means for calculating the time it takes for the subscriber terminal to receive the system information using the length information.
2. The network part as claimed in claim 1 , wherein the system information enables the subscriber terminal to initiate cell communication with the new reselected cell.
3. The network part as claimed in claim 2 , wherein the information indicating a system information length is for calculating a re-selection time between the subscriber terminal and the new reselected cell.
4. The network part as claimed in claim 3 , wherein the subscriber terminal determines whether to continue or discontinue cell reselection based on the calculated reselection time.
5. The network part as claimed in claim 4 , wherein the cell communication is a bi-directional cell communication.