Paper Info
Title
Resource Reduction Method For The Lte-Advanced Uplink Ack/Nack Signal And Sr
Abstract
Advanced Evolved Universal Terrestrial Radio Access (Advanced E-UTRA), called LTE-Advanced, has been standardized in the 3rd Generation Partnership Project (3GPP) as a candidate for IMT-Advanced. LTE-Advanced supports spatial orthogonal-resource transmit diversity (SORTD) [1], [2] for ACK/NACK signals and scheduling requests (SRs), which are used to control downlink hybrid automatic repeat requests (HARQs) and manage uplink radio resources based on uplink data traffic, respectively. Both ACK/NACK signals and SRs are carried via a physical uplink control channel (PUCCH) [3], and a common PUCCH format is used for both ACK/NACK signals and SRs. If SORTD is used, the base station assigns mutually orthogonal resources to each antenna included in the user equipment (UE) for ACK/NACK signals and SRs; hence, the number of required resources increases with the number of transmitting antennas in the UE. In this paper, we study the resource reduction method for ACK/NACK signal and SR in case of SORTD using the concept of common resource. In addition, we investigate a phase rotation scheme for common resources to improve the SR detection performance.
Year
DOI
Venue
2011
10.1587/transcom.E94.B.364
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
LTE-Advanced, space orthogonal resource transmit diversity, phase rotation, ACK/NACK signal, scheduling request
Control channel,Base station,Scheduling (computing),Computer science,Computer network,Automatic repeat request,User equipment,Transmit diversity,LTE Advanced,Telecommunications link
Journal
Volume
Issue
ISSN
E94B
1
0916-8516
Citations 
PageRank 
References 
0
0.34
1
Authors
7
Name
Order
Citations
PageRank
Seigo Nakao153.06
Kenji Takagi2245.44
Masaru Fukuoka321.11
Daichi Imamura4217.61
Hidekazu Murata516437.72
Koji Yamamoto613545.58
Susumu Yoshida713425.22