United States Patent 9,042,301
Wang , et al. May 26, 2015
--------------------------------------------------------------------------------
Method and apparatus for data security and automatic repeat request implementation in a wireless communication system
Abstract
A method and apparatus for implementing data security and automatic repeat request (ARQ) in a wireless communication system are disclosed. Cipher entities are included in a wireless transmit/receive unit (WTRU) and an access gateway (aGW), and outer ARQ, (or radio link control (RLC)), entities are included in the WTRU and an evolved Node-B (eNode-B). Each cipher entity is located on top of an outer ARQ entity. The cipher entities cipher and decipher a data block by using a generic sequence number (SN) assigned to the data block. The outer ARQ entities may segment the ciphered data block to multiple packet data units (PDUs), may concatenate multiple ciphered data blocks to a PDU, or may generate one PDU from one data block. The outer ARQ entities may segment or re-segment the PDU when a transmission failure occurs.
--------------------------------------------------------------------------------
Inventors: Wang; Peter Shaomin (E. Setauket, NY), Terry; Stephen E. (Northport, NY), Olvera-Hernandez; Ulises (Kirkland, CA)
Applicant: Name City State Country Type
Wang; Peter Shaomin
Terry; Stephen E.
Olvera-Hernandez; Ulises
E. Setauket
Northport
Kirkland
NY
NY
N/A
US
US
CA
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Family ID: 1000001117033
Appl. No.: 13/431,593
Filed: March 27, 2012
--------------------------------------------------------------------------------
Prior Publication Data
--------------------------------------------------------------------------------
Document Identifier Publication Date
US 20120185743 A1 Jul 19, 2012
--------------------------------------------------------------------------------
Related U.S. Patent Documents
--------------------------------------------------------------------------------
Application Number Filing Date Patent Number Issue Date
11612139 Dec 18, 2006 8155053
60796161 Apr 29, 2006
60753077 Dec 22, 2005
--------------------------------------------------------------------------------
Current U.S. Class: 370/328; 370/315; 370/329; 370/392; 370/466; 455/403; 455/410; 455/411; 455/422.1; 714/751
Current CPC Class: H04L 1/1867 (20130101); H04L 63/0428 (20130101); H04W 12/02 (20130101); H04L 1/0007 (20130101); H04W 80/02 (20130101); H04L 1/1809 (20130101)
Current International Class: H04L 1/18 (20060101)
Field of Search: ;370/328,329,466,503,315,392 ;455/410,411,403,422.1
PPP
"Intellectuals solve problems; geniuses prevent them." - Albert Einstein
