System Performance of Inter-NodeB MF-HSDPA with Enhancements to Backhaul Flow/Congestion Control

Author

Ge, Weiyan ; Kapoor, Rohit ; Zhang, Danlu ; Sambhwani, Sharad ; Scipione, Mario

Author_Institution

Qualcomm Inc., San Diego, CA, USA

fYear

2012

fDate

3-6 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

In this paper, we study the feature of Multi-Flow HSDPA (MF-HSDPA), which allows simultaneous transmission of separate data packets from two or more serving cells (across different sectors or NodeBs) to a User Equipment (UE). This new feature brings challenges for system design, especially for the Inter-NodeB case, in which the serving cells reside in different NodeBs. To address these challenges, we propose enhancements to the Radio Link Control (RLC) layer and backhaul flow control/congestion control. Simulation results show significant performance gain can be achieved by the MF-HSDPA feature. The gain is more promising when the backhaul is congested, because Inter-NodeB MF-HSDPA offers "backhaul diversity" by utilizing two backhaul links to serve a MF UE.

Keywords

diversity reception; packet radio networks; radio links; telecommunication congestion control; RLC layer; backhaul congestion Control; backhaul diversity; backhaul flow control; backhaul links; data packets; inter-bodeB MF-HSDPA; multiflow HSDPA; performance gain; radio link control layer; serving cells; system design; system performance; user equipment; Delay; Multiaccess communication; Receivers; Simulation; Spread spectrum communication; Throughput; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Fall), 2012 IEEE

Conference_Location

Quebec City, QC

ISSN

1090-3038

Print_ISBN

978-1-4673-1880-8

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VTCFall.2012.6399196

Filename

6399196