Extended HSUPA coverage and enhanced battery saving opportunities with multiple TTI lengths

3GPP has specified that terminals can be configured to use either 2 or 10 ms transmission time interval in high speed uplink packet access systems. The purpose of this paper is to evaluate the benefit of exploiting a mixture of both of the transmissions time intervals within a cell instead of only one. The study is quantified by means of studying the achievable coverage of voice over IP and possible battery saving benefits. The analysis is conducted with a system level simulator modeling network and terminal behavior in detail. The paper indicates that utilizing a mixture of both transmission time intervals can extend coverage whilst providing enhanced battery saving opportunities.

[1]  Esa Malkamäki,et al.  VOIP over HSPA with 3GPP Release 7 , 2006, 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications.

[2]  Tapani Ristaniemi,et al.  DPCCH Gating Gain for Voice Over IP on HSUPA , 2007, 2007 IEEE Wireless Communications and Networking Conference.

[3]  Esa Malkamäki,et al.  Uplink Capacity of VoIP on HSUPA , 2006, 2006 IEEE 63rd Vehicular Technology Conference.

[4]  Esa Piri,et al.  3G/HSPA Performance in Live Networks from the End User Perspective , 2009, 2009 IEEE International Conference on Communications.

[5]  Tapani Ristaniemi,et al.  VoIP end-to-end performance in HSPA with packet age aided HSDPA scheduling , 2008, 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications.

[6]  Antti Toskala,et al.  HSDPA/HSUPA for UMTS: High Speed Radio Access for Mobile Communications , 2006 .

[7]  Tapani Ristaniemi,et al.  Impact of Mobility to the VoIP over HSUPA System Level Performance , 2008, VTC Spring 2008 - IEEE Vehicular Technology Conference.

[8]  Antti Ylä-Jääski,et al.  Towards High Quality VoIP in 3G Networks - An Empirical Study , 2008, 2008 Fourth Advanced International Conference on Telecommunications.

[9]  Dan Keun Sung,et al.  Hybrid Scheduling Algorithm for Guaranteeing QoS of Real-Time Traffic in High Speed Uplink Packet Access (HSUPA) , 2007, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications.

[10]  M. Bertinelli,et al.  VoIP over HSUPA: link level performance study , 2006, 2006 3rd International Symposium on Wireless Communication Systems.

[11]  Tao Chen,et al.  Dynamic Packet Bundling for VoIP Transmission Over Rel'7 HSUPA with 10ms TTI Length , 2007, 2007 4th International Symposium on Wireless Communication Systems.