United States Patent 7,710,911
Terry May 4, 2010
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Method and apparatus for dynamically allocating H-ARQ processes
Abstract
A method and apparatus for dynamically allocating hybrid automatic repeat request (H-ARQ) processes in a wireless transmit/receive unit (WTRU) for supporting enhanced uplink (EU) transmissions. The H-ARQ processes in the WTRU are reserved for specific transport channels (TrCHs), dedicated channel medium access control (MAC-d) flows or logical channels associated with different data transmission priority classes. The WTRU allocates H-ARQ processes from those reserved H-ARQ processes that are available. Optionally, a higher priority channel may be allowed to allocate an H-ARQ process reserved for lower priority channels. Lower priority H-ARQ processes may be preempted. The preemption may be restricted by urgency of data transmission, or by radio network controller (RNC) configuration of H-ARQ processes. Alternatively, a common pool of H-ARQ processes may be configured and an H-ARQ process may be allocated from the common pool in accordance with a priority of each channel, and lower priority H-ARQ may be preempted.
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Inventors: Terry; Stephen E. (Northport, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 11/139,880
Filed: May 27, 2005
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
60578712 Jun., 2004
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Current U.S. Class: 370/328 ; 370/329; 370/338; 455/450; 455/452.2
Current International Class: H04W 4/00 (20090101)
Field of Search: 370/335,329,34,342,395.42,328,338 455/450,452.2 709/231
