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Apparatus and method for efficient transmission of acknowledgments

A scheme, frequency division multiplexing technology, applied in transmission control/equalization, transmission system, error prevention/detection using return channel, etc., can solve problems such as large received signal-to-noise ratio and small frame error rate

Inactive Publication Date: 2012-03-21
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in FH-OFDMA systems, there is a large difference in received signal-to-noise ratio (SNR) between frames / packets, making it difficult to efficiently guarantee a small frame error rate (FER) for each packet transmission

Method used

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  • Apparatus and method for efficient transmission of acknowledgments
  • Apparatus and method for efficient transmission of acknowledgments
  • Apparatus and method for efficient transmission of acknowledgments

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Embodiment Construction

[0023] In the following detailed description, numerous specific details are provided. However, it is understood that many embodiments of the invention may be practiced without these specific details. It should be clear and understood by those skilled in the art that the various embodiments of the present invention described below are exemplary, which are intended to illustrate the present invention rather than limit it.

[0024] As described herein, according to one embodiment of the present invention, a method is provided that enables efficient user multiplexing in a multiple access system using an incremental redundancy transmission scheme such as an automatic repeat / retransmission (ARQ) scheme. use. In the examples provided below, although an ARQ system is described for purposes of illustration and illustration, it should be understood and clear to those skilled in the art that the principles of the present invention are not limited to multiple access systems using an ARQ ...

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Abstract

Method and apparatus for transmission of information in multiple access communication system is described. Information from a plurality of access terminals is received. Alternatively, an access terminal determines what information needs to be sent to the access point. A determination is made as to whether sufficient resources, such as time, power level, or channels, are available to send an indication of acknowledgment. If sufficient resources are not available at the given time, the transmission of an indication of acknowledgment is delayed until sufficient resources are available.

Description

technical field [0001] The present invention generally relates to the field of wireless communication, and in particular to a method, device and system for selectively responding to incremental redundant transmission in a multiple access communication system. Background technique [0002] In recent years, with the development and improvement of various technologies such as telecommunication network architecture, signal processing and protocols, the performance and capacity of communication systems have continued to increase rapidly. In the field of wireless communication, various multiple access standards and protocols have been developed to increase system capacity and meet rapidly increasing user demands. [0003] These multiple-access schemes and standards include Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Code Division Multiple Access (CDMA), and Orthogonal Frequency Division Multiple Access (OFDMA), among others. Generally speaking...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04B7/005H04L1/12H04L12/56H04W52/28
CPCH04L47/323H04L1/1819H04L1/1671H04W52/28H04L1/1825H04L1/1854H04L5/0055H04L51/23
Inventor D·J·朱利安E·H·蒂格
Owner QUALCOMM INC