US 9,813,951 B2
Method and apparatus for cell update while in an enhanced cellFACH state
Stephen E. Terry, Northport, NY (US); Diana Pani, Montreal (CA); Paul Marinier, Brossard (CA); Rocco Di Girolamo, Laval (CA); and Christopher R. Cave, Dollard-des-Ormeaux (CA)
Assigned to InterDigital Technology Corporation, Wilmington, DE (US)
Filed by InterDigital Technology Corporation, Wilmington, DE (US)
Filed on Aug. 2, 2016, as Appl. No. 15/225,889.
Application 15/225,889 is a continuation of application No. 14/581,565, filed on Dec. 23, 2014, granted, now 9,432,903.
Application 14/581,565 is a continuation of application No. 13/362,724, filed on Jan. 31, 2012, granted, now 8,954,072, issued on Feb. 10, 2015.
Application 13/362,724 is a continuation of application No. 12/024,739, filed on Feb. 1, 2008, granted, now 8,131,294, issued on Mar. 6, 2012.
Claims priority of provisional application 60/887,874, filed on Feb. 2, 2007.
Claims priority of provisional application 60/895,335, filed on Mar. 16, 2007.
Claims priority of provisional application 60/915,058, filed on Apr. 30, 2007.
Prior Publication US 2016/0345213 A1, Nov. 24, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 36/00 (2009.01); H04W 36/04 (2009.01); H04W 36/10 (2009.01); H04W 36/34 (2009.01); H04W 74/00 (2009.01); H04W 74/08 (2009.01); H04W 36/30 (2009.01); H04L 1/18 (2006.01); H04L 5/00 (2006.01)
CPC H04W 36/0055 (2013.01) [H04L 1/1812 (2013.01); H04L 5/0057 (2013.01); H04W 36/04 (2013.01); H04W 36/10 (2013.01); H04W 36/30 (2013.01); H04W 36/34 (2013.01); H04W 74/006 (2013.01); H04W 74/0833 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for performing a cell update from a source cell to a target cell while in a Cell_FACH state, the method comprising:
detecting a cell update triggering event while receiving a high speed downlink packet access (HSDPA) transmission in a Cell_DCH state using a dedicated high speed downlink shared channel (HS-DSCH) radio network temporary identity (H-RNTI), the cell update triggering event comprising at least one of a radio link failure or a radio link control (RLC) unrecoverable error;
initiating a cell update procedure upon detecting the cell update triggering event;
clearing a radio network temporary identity (RNTI) received in the source cell;
reading system information in the target cell; and
based on common HS-DSCH system information included in the system information, resetting an HS-DSCH medium access control (MAC) entity in the target cell, and enabling HS-DSCH reception by setting an HS-DSCH reception variable to TRUE.