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Method and apparatus for harq-ack transmission in traffic adaptive TDD system

a traffic adaptive and tdd technology, applied in the field of radio communication technologies, can solve problems such as waste of pucch resources in the prior ar

Inactive Publication Date: 2019-09-12
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution enables efficient use of PUCCH resources by dynamically adjusting assignments according to actual configurations, ensuring compatibility between newer and older UEs and minimizing resource waste, thereby enhancing system throughput and user peak rates.

Problems solved by technology

Accordingly, when the HARQ-ACK of the PDSCH in the traffic adaptive TDD system is transmitted, there is a problem how the newer UE is compatible with the older UE and a problem that the PUCCH resources are wasted in the prior art.

Method used

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  • Method and apparatus for harq-ack transmission in traffic adaptive TDD system
  • Method and apparatus for harq-ack transmission in traffic adaptive TDD system
  • Method and apparatus for harq-ack transmission in traffic adaptive TDD system

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Embodiment Construction

[0039]Various embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, specific details such as detailed configuration and components are merely provided to assist the overall understanding of these embodiments of the present invention. Therefore, it should be apparent to those skilled in the art that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0040]The concept of PUCCH implicit resources is illustrated herein. In LTE Release8, for a PDSCH scheduled by a PDCCH on a downlink subframe, the HARQ-ACK of the PDSCH is transmitted on corresponding uplink subframes. The PUCCH format 1a / 1b resources for transmitting the HARQ-ACK are obtained through scheduling the PDCCH of the PDSCH, i.e., the...

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Abstract

A method and an apparatus are provided for HARQ-ACK feedback information transmission in a traffic adaptive TDD system. The method includes obtaining a resource indicator and power control information in a physical downlink control channel (PDCCH) scheduling a physical downlink shared channel (PDSCH); identifying at least one physical uplink control channel (PUCCH) resource indicated by the obtained resource indicator; controlling power based on the obtained power control information; and transmitting the HARQ-ACK information in the identified at least one PUCCH resource using the controlled power.

Description

PRIORITY[0001]This application is a Continuation of U.S. Ser. No. 14 / 417,294, which was filed in the U.S. Patent and Trademark Office on Jan. 26, 2015, which is a National Stage application for International Application No. PCT / KR2013 / 006750, which was filed Jul. 26, 2013, and claims priority to Chinese Patent Application No. 201210262044.2, which was filed in the State Intellectual Property Office on Jul. 26, 2012, the entire content of each of which is incorporated herein by reference.BACKGROUND OF THE INVENTION1. Field of the Invention[0002]The present invention relates generally to radio communication technologies, and more particularly, to a method and an apparatus for transmitting a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) of a Physical Downlink Shared Channel (PDSCH) in a traffic adaptive Time Division Duplexing (TDD) system when a TDD uplink and downlink configuration of a cell dynamically changes with uplink and downlink traffic.2. Description of the Relat...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04W72/04H04L5/14H04L1/18H04L5/00
CPCH04W72/0413H04L1/1861H04L5/0055H04L5/14H04L1/1854H04L1/1896H04W52/545H04L5/1469H04W72/21
Inventor FU, JINGXINGSUN, CHENGJUN
Owner SAMSUNG ELECTRONICS CO LTD
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