(12) UIllt€d States Patent (10) Patent No.: US 8,073,087 B2 Casaccia et al. (45) Date of Patent: Dec. 6, 2011 (54) MULTI-CARRIER INCREMENTAL 6,317,854 B1 11/2001 Watanabe REDUNDANCY FOR PACKET BASED 6,704,898 B1 3/2004 Furuskar et al. 7,065,068 B2 6/2006 Ghosh et al. WIRELESS COMMUNICATIONS 7,151,754 B1 12/2006 Boyce et al. _ _ 2002/0009157 A1 1/2002 Sipola (75) Inventors: Lorenzo Casacc1a, San Diego, CA (US); 2002/0150070 A1 10/2002 Shanil Durga Prasad Malladi, San Diego, CA 2003/0043764 A1 3/2003 Kim et al. (US) 2003/0070129 A1 4/2003 Ball et al. 2003/0072283 A1 4/2003 Varshney et al. - - 2003/0097629 A1* 5/2003 M 1. ................. .. 714/751 (73) Ass1gnee: Qualcomm Incorporated, San Diego, 2003/0126536 Al 7/2003 G(§)1(l)2Il1n€l:lt1gi et al‘ CA (US) 2004/0081074 Al 4/2004 Piechocki 2004/0081248 A1 4/2004 Parolari ( * ) Notice: Subject to any disclaimer, the term of this 2004/0202259 A1 10/2004 Gross et al. patent is extended or adjusted under 35 (Continued) U.S.C. l54(b) by 0 days. FOREIGN PATENT DOCUMENTS (21) App1.No.: 12/703,440 CN 1232353 10/1999 (22) Filed: Feb. 10,2010 (Continued) (65) Prior Publication Data OTHER PUBLICATIONS Us 2010/0157791 A1 Jun' 24’ 2010 “ATM Multicast Communication Methods with Multipule QoS Related U S Application Data Guarantee”, NTT R&D, vol. 46, No. 3, pp. 191-198, 1997. (62) Division of application No. 11/238,791, filed on Sep. (Continued) 28, 2005. (60) Provisional application No. 60/615,254, filed on Oct. Primary Examiner i Vineeta S Panwalkar 1’ 2004' (74) Attorney, Agent, or Firm * Larry J. Moskowitz; Sayed H. B 1 d' (51) Int. C]. e a 1 H04B 7/10 (2006.01) (52) U.S. Cl. ..................................................... .. 375/347 (57) ABSTRACT (58) Field of Classification Search ................ .. 375/259, 375/260, 262, 265, 267, 295, 299, 316, 340, Methods and apparatus are disclosed herein for providing 375/341, 346, 347; 714/699, 746, 748, 749, incremental redundancy inawireless communication system 714/751, 752, 786, 790*795, 819, 820; 370/394, to aid in error recovery. One or more redundancy versions are 370/392, 389 sent on different carriers than the primary version of inforSee application file for complete search history. mation to be transmitted. At the receiver end the redundancy versions may be combined using hard or soft combining (56) References Cited techniques, including selection combining, selective soft
