ciples (e.g., for roaming and interconnect) to the evolved PS access. Rel-9 work provides enhancements to Rel-8 IMS Service Continuity and solutions for mobility of media components of a session between different devices under the control of the same user. Work has been added to support IMS Emergency Sessions over GERAN, UTRAN, and E-UTRAN. There is also a need to establish Emergency Sessions in PS mode via GPRS. A work item that proposes a study on EPC Charging to enhance the collection of charging information. To complete the performance measurement definition for EPC that didn't get complete in Rel-8. Miscellaneous: Work is underway to investigate Extended UMTS/LTE 800 band for a potential deployment in Japan. Band A (UL:815 - 830 MHz/DL:860 - 875 MHz) is suggested for LTE while Band B (UL:830 - 845 MHz/DL:875 - 890 MHz) for UMTS. Rel-9 is studying a new frequency band (790-862 MHz) for both UMTS and LTE for Europe. Rel-9 is proposing a text-based PWS (Public Warning System) service. 3.3.3 E-UTRA Objectives The objective of Evolved UTRA and UTRAN is to develop a framework for the evolution of the 3GPP radio-access technology towards a high-data-rate, low-latency and packet-optimized radio-access technology. Thus the study 3GPP TR 25.913 [9] focuses on supporting services within the domain of packet switched. The key targets of Evolved UTRA and UTRAN are as follows whereas the details can be found in TR 25.913: E-UTRA Frequency Bands [7]: Transmission is supported in paired and unpaired spectrums via FDD (both full duplex and half duplex operations) and TDD duplex modes. The channel raster is 100 kHz (the center frequency must be a multiple of 100 kHz). Multiple frequency bands are supported for both FDD and TDD modes. Not only are the existing GSM (800/900 MHz) and UMTS (2100 MHz) bands supported, new bands in 700, 2300, 2500 MHz are also added for 3G-LTE. Scalable Bandwidth: E-UTRA should operate in spectrum allocations of 1.25 and 1.6 MHz (primarily for 1.38 Mcps TDD mode). E-UTRA should support 2.5, 5, 10, 