An enhanced mechanism for efficient assignment of multiple MBMS sessions towards LTE

ABSTRACT

The provision of rich multimedia services, such as Mobile TV, is considered of key importance for the Long Term Evolution (LTE) proliferation in mobile market. To this direction, Evolved - Multimedia Broadcast/Multicast Service (E-MBMS) that targets at the efficient delivery of multimedia data from a single source entity to multiple destinations, is envisaged to play an instrumental role during LTE standardization process. However, both LTE and E-MBMS performance are limited by the base station's transmission power. As an aftermath, efficient power allocation techniques should be implemented so as to ensure the mass provision of multimedia applications to mobile users. This paper proposes a novel mechanism for efficient radio bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Most significantly, the mechanism exploits the performance enhancements emerged from Multiple Input Multiple Output (MIMO) antennas used in LTE networks and manages to efficiently deliver multiple E-MBMS sessions. The proposed mechanism is thoroughly evaluated and compared with several radio bearer selection mechanisms existing in bibliography.

REFERENCES

• 1: 3GPP TS 22.146 V8.3.0. "Technical Specification Group Services and System Aspects; Multimedia Broadcast/Multicast Service; Stage 1 (Release 8)", 2007.
• 2: 3GPP TR 23.846 V6.1.0. "Technical Specification Group Services and System Aspects; Multimedia Broadcast/Multicast Service; Architecture and functional description (Release 6)", 2002.
• 3: 3GPP TS 25.346 V8.1.0. "Technical Specification Group Radio Access Network; Introduction of the Multimedia Broadcast Multicast Service (MBMS) in the Radio Access Network (RAN); Stage 2, (Release 8)", 2008.
• 4: 3GPP TR 25.922 V7.1.0. "Technical Specification Group Radio Access Network; Radio resource management strategies (Release 7)", 2007.
• 5: 3GPP TSG-RAN WG1#28 R1-02-1240. "Power Usage for Mixed FACH and DCH for MBMS, Lucent Technologies", 2002.
• 6: Holma, H., Toskala, A.: HSDPA/HSUPA for UMTS: High Speed Radio Access for Mobile Communications. John Wiley & Sons (2006)
• 7: Zihuai Lin; Sorensen, T.B.; Mogensen, P.E.: Downlink SINR Distribution of Linearly Precoded Multiuser MIMO Systems, IEEE Communications Letters, 11(11), 850--852, (2007)
• 8: Perez-Romero, J., Sallent, O., Agusti, R., Diaz-Guerra, M.: Radio Resource Management Strategies in UMTS. John Wiley & Sons (2005)
• 9: 3GPP TS 25.803 V6.0.0, Technical Specification Group Radio Access Network; S-CCPCH performance for MBMS, (Release 6)
• 10: 3GPP TS 25.211 V7.4.0. "Physical channels and mapping of transport channels onto physical channels (FDD) (Release 7)", 2007.
• 11: 3GPP TS 25.212 V8.0.0. "Multiplexing and channel coding (FDD) (Release 8)", 2007.

INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.1 Network Architecture and Design
          Subjects: Wireless communication

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.3 Network Operations
          Subjects: Network management; Public networks

  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.1 Multimedia Information Systems
          Subjects: Evaluation/methodology

General Terms:
Design, Management, Performance, Verification

Keywords:
LTE, MBMS, MIMO, Power Control, UMTS