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Method and device for determining HARQ timing in communication system

A communication system and physical channel technology, applied in the field of wireless communication systems, can solve problems such as the absence of HARQ feedback timing solutions, and achieve the effects of high peak rate and minimized feedback delay

Active Publication Date: 2018-12-07
NEC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] However, in the prior art, there is no solution for defining HARQ feedback timing for communication systems supporting CA for FDD and TDD

Method used

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  • Method and device for determining HARQ timing in communication system
  • Method and device for determining HARQ timing in communication system
  • Method and device for determining HARQ timing in communication system

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Embodiment Construction

[0055] Hereinafter, the principle and spirit of the present invention will be described with reference to the illustrative embodiments. It should be understood that all these embodiments are given only to enable those skilled in the art to better understand and further practice the present invention, but not to limit the scope of the present invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. In the interest of clarity, not all features of an actual implementation are described in this specification. It should of course be understood that in the development of any such actual embodiment, many implementation-specific decisions should be made to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, which will vary from implementation to implementation. Furthermore, it should be appreciated that such a development eff...

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Abstract

The invention provides a method and a device for determining HARQ timing in a communication system supporting carrier aggregation (CA). The method is used for receiving HARQ feedbacks from UE in BS ina communication system supporting Pcell and the CA of at least one Scell. The Pcell and each Scell support FDD or TDD. The method comprises steps of transmitting a downlink physical channel through one of the Pcell and the Scells; based on first timing which is predetermined for the Pcell, receiving HARQ feedbacks corresponding to the downlink physical channel of the Pcell; and based on second timining, receiving HARQ feedbacks corresponding to the downlink physical channel of each Scell, wherein the second timing is determined according to the duplex modes of the Pcell and the Scells, a dispatching mode of the Scell, and one or more predefined rules.

Description

[0001] This application is a divisional application of the No. 201380074663.1 invention patent application submitted on March 28, 2013. technical field [0002] Embodiments of the present invention generally relate to wireless communication systems, and more particularly to methods, apparatuses, base stations, user equipment and computers for determining hybrid automatic repeat request (HARQ) timing in a communication system supporting carrier aggregation (CA) program. Background technique [0003] This section introduces various aspects that may facilitate a better understanding of the invention. Accordingly, the statements in this section are to be read in that light and should not be construed as an admission as to what is or is not prior art. [0004] The Long Term Evolution (LTE) and LTE-Advanced (LTE-A) standards and / or protocols defined by the Third Generation Partnership Project (3GPP, 3GPP2) are one of the next generation cellular communication standards. Accordin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18
CPCH04L1/1854H04W72/23H04L5/14
Inventor 孙振年王刚雷鸣
Owner NEC CORP
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