Supplemental Downlink (SDL) has been enabled in Release 9 as part of the evolution of High Speed Downlink Packet Access (HSDPA). While the serving carrier (cell) for an HSDPA UE is part of paired spectrum, the SDL carrier is part of unpaired spectrum in a different band. Thus, SDL operation helps efficiently utilize unpaired spectrum for HSDPA. Release 10 extends SDL operation by bonding up to 3 carriers in the unpaired band with the serving carrier(s) in the paired band. In this paper, we focus on Release 9 SDL performance. The SDL carrier just needs to support the Primary Common Pilot Channel as overhead, thereby leaving a larger share of power for HSDPA channels. For these reasons, SDL deployments can provide significant gains in both the user experience and number of users supported for a given user experience, when compared to a Single Carrier (SC) deployment.
22605
Benefits of HSPA Supplemental Downlink
10:40 AM Jun 10th
sites/default/files/ddp_file/Benefits_of_HSPA_Supplemental_Downlink.pdf
Jun 13, 2011
An overview of the Qualcomm Business Model
18283
Qualcomm Business Model Overview
11:56 AM Feb 15th
sites/default/files/qualcomm_rd_2011.pdf
Feb 15, 2011
Dual Cell HSDPA (DC-HSDPA), which was introduced in Release 8 of the WCDMA specifications, enables the User Equipment (UE) to receive downlink data on two adjacent carriers simultaneously. We implemented DC-HSDPA functionality in a prototype and evaluated its performance for various applications in comparison with Single Carrier HSDPA (referred to as just HSDPA). Our results show that realistic applications, such as web browsing, FTP and video streaming see significant gain at low and medium geometries with DC-HSDPA compared to HSDPA.
21211
Dual Cell HSDPA Application Performance in Unloaded Systems
5:19 PM Feb 9th
sites/default/files/ddp_file/MC_Proto_MWC_2010_v8.pdf
May 25, 2011
Abstract: Dual Cell HSDPA (DC-HSDPA), which was introduced in Release 8 of the WCDMA specifications, enables the User Equipment (UE) to receive own link data on two adjacent carriers simultaneously. We implemented DC-HSDPA functionality in a prototype and evaluated its performance for various applications in comparison with Single Carrier HSDPA (referred to as just HSDPA). Our results show that realistic applications, such as web browsing, FTP and video streaming see significant gain at low and medium geometries with DC-HSDPA compared to HSDPA.
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21210
Dual Cell HSDPA Application Performance
4:29 PM May 17th
sites/default/files/ddp_file/mc_vtc_v02_for_mwc.pdf
May 25, 2011