CAZAC Sequence Hopping for Physical Uplink Control Channel of LTE

Author

Lu, Feng ; Komine, Toshihiko ; Suzuki, Toshinori ; Sawahashi, Mamoru

fYear

2008

fDate

21-24 Sept. 2008

Firstpage

1

Lastpage

5

Abstract

Single carrier (SC)-FDMA has been adopted by 3GPP as the radio access scheme for the uplink of long term evolution (LTE). The uplink Layer 1 / Layer 2 (L1/L2) control signalling information consists of ACK/NACK and channel quality indicator (CQI) etc. Frequency hopping based uplink L1/L2 control channel structures for ACK/NACK and CQI are agreed. This paper proposes user equipment (UE, i.e., handset or mobile terminal) specific cyclic shift (CS) setting based on the agreed hopping structure in order to achieve further interference averaging effect and diversity effect. The simulation results show that proposed UE-specific CS hopping can provide additional intra and inter-subframe interference randomization effect and hence additional gain compared to the case without further CS hopping.

Keywords

diversity reception; frequency division multiple access; interference (signal); radio links; wireless channels; CAZAC sequence hopping; LTE; cyclic shift; diversity effect; handset; inter-subframe interference randomization effect; interference averaging effect; long term evolution; mobile terminal; physical uplink control channel; single carrier-FDMA; user equipment; Base stations; Frequency diversity; Interference; Laboratories; Long Term Evolution; OFDM; Peak to average power ratio; Research and development; Signal generators; Telephone sets;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th

Conference_Location

Calgary, BC

ISSN

1090-3038

Print_ISBN

978-1-4244-1721-6

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2008.325

Filename

4657157