Systems and methods for facilitating the transition of a wireless communication device (WCD) from a CELL_FACH state to a CELL_DCH state

An access node for facilitating the transition of a wireless communication device (WCD) from a CELL_FACH state to a CELL_DCH state, the access node being adapted to:

• determine that the WCD should transition from the CELL_FACH to the CELL_DCH cell state;
• and
• in response to determining that the WCD should transition from the CELL_FACH to the CELL_DCH cell state:
• i) send to the WCD a first configuration message for moving the WCD from the CELL_FACH state to the CELL_DCH state, and
• ii) send to the WCD a second configuration message for forcing the WCD to obtain a common E-DCH resource or retain a previously obtained common E-DCH resource, wherein the second configuration message is a message for requesting the WCD to move a reception window, comprises a Move Receiving Window (MRW) super-field (SUFI) and/or contains outdated information about the reception window;
• and
• iii) when the second configuration message contains outdated information, trigger a transmission of an acknowledgement (ACK), acknowledging a reception of the second configuration message and affect the WCD to acquire a common E-DCH resource.

A method for facilitating the transition of a wireless communication device (WCD) from a CELL_FACH state to a CELL_DCH state, the method comprising:

• determining that the WCD should transition from the CELL_FACH to the CELL_DCH cell state;
• in response to determining that the WCD should transition from the CELL_FACH to the CELL_DCH cell state, (i) sending to the WCD a configuration message for moving the WCD from the CELL_FACH state to the CELL_DCH state, (ii) sending to the WCD a second configuration message for forcing the WCD to obtain a common E-DCH resource or retain a previously obtained common E-DCH resource, wherein the second configuration message is a message for requesting the WCD to move a reception window, comprises a Move Receiving Window (MRW) super-field (SUFI) and/or contains outdated information about the reception window;
• and (iii) when the second configuration message contains outdated information, triggering a transmission of an acknowledgement (ACK), acknowledging a reception of the second configuration message and affecting the WCD to acquire a common E-DCH resource;
• after sending the configuration message, receiving a status message transmitted by the WCD;
• and
• after receiving the status message, causing the WCD to resend the status message.

An access node for facilitating the transition of a wireless communication device (WCD) from a CELL_FACH state to a CELL_DCH state, the access node being adapted to:

• determine that the WCD should transition from the CELL_FACH to the CELL_DCH cell state;
• in response to determining that the WCD should transition from the CELL_FACH to the CELL_DCH cell state, @ send to the WCD a configuration message for moving the WCD from the CELL_FACH state to the CELL_DCH state, (ii) send to the WCD a second configuration message for forcing the WCD to obtain a common E-DCH resource or retain a previously obtained common E-DCH resource, wherein the second configuration message is a message for requesting the WCD to move a reception window, comprises a Move Receiving Window (MRW) super-field (SUFI) and/or contains outdated information about the reception window;
• and (iii) when the second configuration message contains outdated information, trigger a transmission of an acknowledgement (ACK), acknowledging a reception of the second configuration message and affect the WCD to acquire a common E-DCH resource;
• after sending the configuration message, receive a status message transmitted by the WCD;
• and
• after receiving the status message, cause the WCD to resend the status message.