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Method and apparatus for dynamically allocating h-arq processes

A hybrid automatic repeat and dynamic allocation technology, applied in signaling allocation, selection device, transmission path sub-channel allocation, etc., can solve problems such as waste of resources and resources

Active Publication Date: 2007-05-09
INTERDIGITAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this example, when performing H-ARQ procedures, these initial transmissions and retransmissions will be repeated frequently to achieve successful transmissions, which wastes resources for transmissions that were initially occupied

Method used

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  • Method and apparatus for dynamically allocating h-arq processes
  • Method and apparatus for dynamically allocating h-arq processes
  • Method and apparatus for dynamically allocating h-arq processes

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Embodiment Construction

[0017] Hereinafter, the term "WTRU" includes, but is not limited to, a user equipment (UE), a mobile station, a fixed or mobile subscriber unit, a pager, or any form of device operable in a wireless environment. When the term "Node B" is referred to hereafter, it includes, but is not limited to, a base station, a site controller, an access point, or any known interface device in a wireless environment.

[0018] The features of the present invention may be integrated into an integrated circuit (IC), or configured on a circuit comprising a number of interconnected components.

[0019] FIG. 1 is a block diagram illustrating the operation of a wireless communication system 100 according to the present invention. The system 100 includes at least one WTRU 102 , at least one Node B 104 and an RNC 106 . The RMC 106 configures the Node-B 104 and EU parameters of the WTRU 102 via an Iub / Iur 112 to control overall EU operation, such as configuration of the H-ARQ procedure 124 in the WTRU...

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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.

Description

technical field [0001] The present invention relates to a hybrid automatic repeat request (H-ARQ) operating in a wireless communication system including at least one wireless transmit / receive unit (WTRU), at least one Node B and a radio network controller (RNC). In particular, the present invention relates to a method and system for dynamically allocating H-ARQ procedures in a WTRU to support enhanced uplink (EU) transmissions. Background technique [0002] EU operation will reduce uplink latency, improve productivity, and provide more efficient use of physical wireless resources. During EU operation, H-ARQ procedures are used to support EU transmissions between a WTRU and a uNodeB, including the help of a feedback procedure to report whether the EU data transmission was successful or unsuccessful. [0003] For each WTRU, some H-ARQ procedures are defined, and each WTRU supports multiple H-ARQ procedures simultaneously. Since the feedback loop for each EU data transmission...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/212H04Q7/00H04L1/16H04L1/18H04W28/04H04W74/00H04W88/12
CPCH04L1/1887H04W88/12H04L1/1812H04W74/00H04W72/04H04W28/04H04L5/0053H04W72/56H04W72/23H04W72/21H04W72/0446
Inventor 史蒂芬·E·泰利
Owner INTERDIGITAL TECH CORP