United States Patent 7,688,796
Pan , et al. March 30, 2010
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Wireless communication method and apparatus for decoding enhanced dedicated channel absolute grant channel transmissions
Abstract
A wireless communication method and apparatus for decoding enhanced dedicated channel (E-DCH) absolute grant channel (E-AGCH) transmissions are disclosed. A wireless transmit/receive unit (WTRU) receives E-AGCH data which includes a cyclic redundancy check (CRC) part and a data part. The CRC part is masked with a WTRU identity (ID) at a Node-B. The CRC part and the data part are demultiplexed and the CRC part is demasked with the WTRU ID. A CRC is then performed with the demasked CRC part. If the CRC passes the data part is sent to an enhanced uplink medium access control (MAC-e) entity. The WTRU ID may be a primary E-DCH radio network temporary identity (E-RNTI) or a secondary E-RNTI. When the E-AGCH data is transmitted over a 10 ms frame, if the CRC fails, E-AGCH data via subsequent subframe may be soft combined with the previous E-AGCH data.
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Inventors: Pan; Jung-Lin (Selden, NY), Shin; Sung-Hyuk (Northvale, NJ), Yang; Rui (Greenlawn, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 11/478,395
Filed: June 28, 2006
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
60713140 Aug., 2005
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Current U.S. Class: 370/342 ; 370/310; 370/312; 370/313; 370/314; 370/335; 714/3; 714/758; 714/776
Current International Class: H04B 7/216 (20060101); G06F 11/00 (20060101)
Field of Search: 370/338,328,342,318,311,332,335,320
