Method and apparatus for coverage enhancement in wireless communication system

A wireless communication system and coverage enhancement technology, applied to the coverage enhancement field in wireless communication systems, can solve problems such as low successful transmission rate, and achieve the effect of improving successful transmission rate

Inactive Publication Date: 2016-05-04
NEC (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, according to the prior art, the successful transmission rate of ACK / NACK messages on the Physical Hybrid ARQ Indicator Channel (PHICH) is rather low at low SNR

Method used

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  • Method and apparatus for coverage enhancement in wireless communication system
  • Method and apparatus for coverage enhancement in wireless communication system
  • Method and apparatus for coverage enhancement in wireless communication system

Examples

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Embodiment Construction

[0026] Hereinafter, embodiments of the present invention will be thoroughly described with reference to the accompanying drawings. It will be apparent to those skilled in the art that the invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments and specific details set forth herein. Like numbers refer to like elements throughout the specification.

[0027] The features, structures, and characteristics of the invention described throughout this specification may be combined in any suitable manner in one or more embodiments. For example, use of the phrases "certain embodiments," "some embodiments," or other similar language throughout this specification refers to the fact that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. Thus, appearances of the phrase "in some embodiments," "in some embodiments," "in other e...

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Abstract

Embodiments of the disclosure provide methods and apparatuses for coverage enhancement in a wireless communication system are disclosed. In a method according to embodiments of the present invention, a PHICH resource set including a plurality of PHICH resources is determined, and an ACK / NACK message is spread by using the plurality of PHICH resources, such that spreading results of the ACK / NACK message are sent to a UE in the plurality of PHICH resources.

Description

technical field [0001] Embodiments of the invention relate primarily to communication technologies. More specifically, embodiments of the present invention relate to a method and apparatus for coverage enhancement in a wireless communication system. Background technique [0002] The hugely successful evolution standards of 3GPP LTE and LTE-Advanced, also known as GSM / HSPA technology, lead to a new family of specifications and standards for next generation cellular communication technologies. LTE and LTE-Advanced have two different duplex modes for separating the transmission direction from user to base station and vice versa: frequency division duplex (FDD) and time division duplex (TDD). [0003] In order to deal with the decoding failure in the initial transmission, LTE uses hybrid automatic repeat request (HARQ) to retransmit the data that fails to be decoded on the physical layer. HARQ is a technique in which, upon decoding failure, a receiver sends a negative acknowle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16
CPCH04L5/0055H04L1/1861H04W24/02
Inventor 王刚孙振年雷鸣
Owner NEC (CHINA) CO LTD
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