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Improved ack/nack feedback for tdd

A negative acknowledgment, dedicated subframe technology, applied in the field of acknowledgment/negative acknowledgment feedback, which can solve problems such as performance degradation

Active Publication Date: 2016-07-20
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This interference can degrade performance on the downlink and uplink

Method used

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  • Improved ack/nack feedback for tdd
  • Improved ack/nack feedback for tdd
  • Improved ack/nack feedback for tdd

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Embodiment Construction

[0030] The detailed description, given below in conjunction with the accompanying drawings, is intended as a description of various configurations and is not intended to represent the only configurations that implement the concepts described herein. The detailed description includes specific details in order to provide a thorough understanding of various concepts. However, one skilled in the art will recognize that the concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts.

[0031]The techniques described herein can be used in various wireless communication networks such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA) and other networks. The terms "network" a...

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Abstract

Bits for acknowledgment (ACK) and / or negative acknowledgment (NAK) may be allocated based on whether the dedicated subframe configuration in the TDD configuration allows downlink transmission. For carrier aggregation, ACK / NAK bits may only be allocated to dedicated subframes in component carriers (CCs) that allow downlink transmission. Also, for example, if a single CC is configured to allow downlink transmission on one of its dedicated subframes, all CCs may be assigned ACK / NAK bits for the dedicated subframes. In addition, ACK / NAK bits may also be allocated to all dedicated subframes.

Description

[0001] Cross References to Related Applications [0002] This application claims benefit under 35 U.S.C. §119(e) of U.S. Patent Application No. 13 / 293,086, filed November 9, 2011, in the name of CHEN et al., and entitled IMPROVEDACKNOWLEDGEMENT / NEGATIVEACKNOWLEDGEMENTFEEDBACKFORTDD, and in In the name of US Provisional Patent Application No. 61 / 413,341, filed November 12, 2010, entitled IMPROVEDACKNOWLEDGEMENT / NEGATIVEACKNOWLEDGEMENTFEEDBACKFORTDD, both applications are expressly incorporated herein by reference in their entirety. technical field [0003] In general, aspects of the present disclosure relate to wireless communication systems, and in particular, to improved acknowledgment / negative acknowledgment feedback for time division duplex (TDD) operation in LTE-A carrier aggregation. Background technique [0004] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast and so on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L5/00H04L1/18
CPCH04L1/1614H04L1/1861H04L1/1864H04L5/0044H04L1/18
Inventor W·陈J·蒙托霍X·罗
Owner QUALCOMM INC
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